Atec WT1800 User Manual

High Performance Power Analyzer WT1800

WT1800

High Performance Power Analyzer

Broad Ranges Power Measurement

with One Unit

Basic Power Accuracy ±0.1% DC Power Accuracy ±0.05% Voltage/Current Bandwidth 5 MHz Sampling Rate Approx. 2 MS/s (16-bit) Input Elements Max. 6 Current Measurement 100 μ A to 55 A

Innovative Functions Help Improve Measurement Efficiency

Motor, Inverter, Lighting, EV/HEV, Battery, Power Supply,

Aircraft, New Energy, Power Conditioner

*1

(-3 dB, Typical)

*1: Excluding direct current input with the 50 A input element

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Product Features Functions/Displays Applications Software Comparisons Explanations Specifications

Measurement

5-fold wider than

previous model

2/3 of

previous model

InheritanceInheritance

5-fold wider than

previous model

First in industryFirst in industry

* Comparison with Yokogawa’s previous model WT1600

2

High-precision, wide-range, fast-sampling, simultaneous harmonic measurement

oltage and current frequency bandwidth 5 MHz (-3 dB, typical)

Faster switching frequencies increasingly require measurements in a wider range. The WT1800 provides a voltage and current frequency bandwidth (5

MHz) 5-fold wider than the previous measurement range and is capable of more correctly capturing fast switching signals.

Reduction of low power-factor error to 0.1% of apparent power (2/3 of previous model

A power-factor error is one of the important elements to ensure high-accuracy measurements even at a low power factor. The WT1800 has achieved a

power-factor error (0.1%) that is 2/3 of the previous model, in addition to a high basic power accuracy of ±0.1%

Wide voltage and current range allowing direct input

Direct input of measurement signals makes it possible to measure very small current that can hardly be measured with a current sensor. The WT1800

provides a direct input voltage range from 1.5 V to 1000 V (12 ranges) and a direct input current range from 10 mA to 5 A (9 ranges) or from 1 A to 50 A

6 ranges

.1 Hz low-speed signal power measurement and max. 50 ms high-speed data collectio

The frequency lower limit has been reduced to 0.1 Hz from the previous 0.5 Hz (5-fold lower than the previous model) to meet the requirement for power

measurements at a low speed. Furthermore, high-speed data collection at a data update rate of up to 50 ms has been inherited. In addition to normal measurement data, up to the 500th order harmonic data can be measured and saved simultaneously. The data update rate can be selected from nine

tions from 50 ms to 20 s.

Particular voltage and current range selectabl

Wide voltage and current input ranges have the advantage of extending the measurement application range. However, the downside is

hat the response time of the auto range tends to slow down. A range configuration function solves this problem. Since only the selected

range (effective measurement range) can be used, the range can be changed up or down more quickly.

armonic measurement at the 50 ms data update rate is poss

*1: Applicable to a general-purpose high-precision three-phase power analyzer as of February 2011 (according to Yokogawa’s survey

e up to the 100th order

For details, see

Pages

5

First in industryFirst in industry First in industryFirst in industry

z or

easuring

Challenging the common wisdom that

armonic measurement is limited to a

also capable of measuring up to the 500th

order harmonic even at high fundamental frequencies such as a 400 Hz frequen

For details, see Pages 5 and 6 For details, see Pages 5

Dual Harmonic Measurement

z

power to DC pow

xcess power, and battery chargers/dischargers

grid connection controllers to control reverse power flow

ist

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Customize Display Screen

as 4-value, 8-value, and 16-value view to display screens, so y

creen to view the desired parameter in the desired size and at the desire

capable of read

viewing data in a flexible format. Thus the

isplay screen can be customized in a

e user-frien

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Many features are available that are a first in the power measurement industry

DA output (/DA option)lDA output (/DA option)

Rear panel

l

Voltage input terminallVoltage input terminal

External current sensor

lExternal current sensor

l

input terminal (/EX option)

Direct current input terminallDirect current input terminal

l

Blue: Standard

Red: Option

Functions

First in industryFirst in industry

NEWNEW

New functions greatly support power measurements

Dual harmonic measurement (option)

The industry’s first two-line simultaneous harmonic measurement is available, in addition to simultaneous measurement of harmonic and

normal measurement items such as voltage, current, and power values. Previously, harmonic measurements of input and output signals had to be performed separately. With the WT1800, harmonic measurements of input and output can be performed simultaneously.

wo-channel external signal input is available for power measurement and analog signal data

easurement (option available in combination with the motor evaluation function

Power measurements can be performed together with physical quantity data such as solar irradiance or wind power in wind generation

Electrical angle measurement is also supported. Motor evaluation function allowing A-phase, B-phase,

and Z-phase inputs (option available in combination with external signal input

Pulse or analog signals can be input for rotation speed and torque signal measurements. The motor evaluation function of the WT1800

makes it possible to detect the rotation direction and measure the electrical angle, which is not possible with Yokogawa’s previous model

Saving/Communication

First in industryFirst in industry

List of Available Functions

Standard feature

Option

Software (sold separately)

User-defined event function

For the first time in the high-precision power analyzer industry, an event trigger function is available to meet the requirement to capture

only a particular event. For example, a trigger can be set for measured values that fall out of the power value range from 99 W to 101 W and only data that meets the trigger condition can be stored, printed, or saved to a USB memory device.

P-IB, Ethernet, and USB communication functions available as standar

l

The photograph shows the model with the /MTR option.

A wide variety of communication and data saving functions

First in industry means functions and capabilities available for the first time in the high-precision three-phase power analyzers (according to Yokogawa’s survey).

Voltage

range

1.5-1000V

Delta

Computation

External

Current

sensor

range

1-50A

0.05-10V

10mA-5A

Add-on

Frequency

12ch

/DT

/EX

Motor

Evaluation

Speed

Torque

/FQ

/MTR

Power

Frequency

range

1MHz

Auxiliary

Inputs

Analog

2 inputs

Voltage/Current

/US

Torque and rotation speed (A-, B-, and Z-phase terminals, /MTR option)

lTorque and rotation speed (A-, B-, and Z-phase terminals, /MTR option)

l

or external signal input (/AUX option)

Frequency

Inputs

bandwidth

1,2,3,

5MHz

(typical)

4,5,6

USB

Internal

memory

Memory

32MB

Basic Power

Accuracy

±0.1%

Printer

l

GP-IB interfacelGP-IB interface

Crest factor

300(6)

RGB

/B5 /V1

lBNC terminal for external clocklBNC terminal for external clock

BNC terminal for

lBNC terminal for

l

synchronized measurement

l

RGB output (/V1 option)lRGB output (/V1 option)

l

Ethernet communication interfacelEthernet communication interface

USB communication interfacelUSB communication interface

l

Update

Display

8.4-XGA

Comm

USB

rate

50ms-20s

Comm

GP-IB

Harmonic

Comm

Ethernet

sition

For details, see

Pages

For details, see

Pages

Harmonics

/G5

Software

WT Viewer

Pages

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Functions/Displays

All Data of 6-input, Single/Three-phase Devices can be Viewed on a

All Data of 6-input, Single/Three-phase Devices can be Viewed on a Single Screen

Single Screen Important Information is Displayed in a Concentrated Format on

Important Information is Displayed in a Concentrated Format on High Resolution 8.4-inch XGA Display

High Resolution 8.4-inch XGA Display

A high resolution display with a resolution about 2.6-fold higher than Yokogawa’s previous

*

model

is employed. More setting information and measurement data can be displayed.

* Comparison with Yokogawa’s previous model WT1600

A lot of information can be displayed on a single screen

easurement data can be displayed on a single screen, along with the respective detailed setting information of 6 inputs, such as a voltage range, current range,

ynchronization source, wiring system, and filter. You do not need to switch display screens frequently to confirm the settings

Data update rate changeable

Computation range display

irect display of primary current value

he setting ranges of voltage and current are

usually displayed with voltage and current signa

evels that are input to the power analyzer

he WT1800 provides not only this direct display ut also added a new computation range display

unction to the external current sensor range.

his function allows you to display the primar

current range for the voltage output type current

ensor. It allows you to intuitively set a range that

is suited to the primary measurement signal

eve

Display example of

omputation ran

Display example of

irect input range

Innovative

function

1800, the data update rate can be selected

rom 9 options from the fastest data update rate of 50 ms

to an update rate of 20 s for low-speed measurements.

or example, if you want to save the average data at a

-minute interval and inappropriately set the update rate

of 50 ms, measurement results may be not correct

ecause data can be saved only at a 1-minute interva

once every 20 times)

uch a risk can be avoided by setting the update rate that

s suited to the interval at which you want to save data.

User-defined event function

ture only a particular event

The data saving function of the WT Series is capable of continuously saving data for a lon period of time. However, to check an irregular event, data must be retrieved using spreadsheet

oftware. The event trigger function allows you to set the high and low limits and only trigger data that

alls into or out of that range to be saved.

Innovative

function

4

Individual null function

unction to reset only a particular input signal to zero

A null function allows you to reset the offset value to zero in the connected state. Previously, all inputs could only be collectively set to ON or

FF. With the WT1800, the null value for each

input can be set to ON, HOLD, or OFF.

n a motor evaluation test, the offset value for

only a particular input can be reset to zero. This

akes it possible to perform a more accurate

n test.

Innovative

function

Help function

Display the manual on the screen

p menu supports meas

New functionNew function

isplay the manual on the screen

requently used functions (keys) can be

ormed without the instruction manual.

ou may, however, want to use a new

unction during evaluation. The WT1800 incl functions, so if a new operation is required, you can read the explanation of the function

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Functions/Displays

Product Features Functions/Displays Applications Software Comparisons Explanations Specifications

Line filter

apture an original signal masked by high frequency component

Range configration function

new range configuration function is available. It allows you to select a articular voltage and current input range (effective measurement

. Eliminating unnecessary ranges has made it possible to achieve optimal range setting that is faster than Yokogawa’s previous model*. This allows more quicker tracking of signal changes.

the peak goes over the limit, you can switch to a preset range. This is

ffective in reducing the production time for a repeat test, such as setting to OFF, 100 V, OFF and so on, which is performed frequently on the production line.

re available as standar

High-speed range setting suited to input signals

Input signal changes

* Comparison with Yokogawa’s previous model WT1600

t from 1

Action of Yokogawa’ s previous model*

Change available ranges stepwise

Action of WT1800 range configration

Range change ends

Hz in

Change to selected next range

NEWNEW

Range change ends

A Wide Variety of Display Formats Ranging from Numerical to Custom Display

Numerical and harmonic bar graphs

D

l harmonic m

harmonic measurement option (/G5) makes it

oss

e to display both numerical data and bar

raphs to help understand measurement data

sua

n a

a dual harmonic measurement

unction (/G6) makes it possible to measure

ay two-line harmonic bar graphs (dua

armonic) simultaneously.

he /G5 or /G6 option is required

Dual vector

Simultaneous two vector display

amental harmonic voltage and current

ignal phase vectors can be displayed. With

okogawa’s previous model, vector display is

to a single line. With the WT1800, Dua

ectors can be displayed.

n addition, combination display of vectors and

umerical values is also poss ou to view the numerical parameters and oltage and current phase status visually.

he /G5 or /G6 option is require

NEWNEW

e.

s allows

Waveform

ort for 6 split screen displays

Trend

Capture efficiency changes visually

NEWNEWNEWNEW

resolution display makes is poss

lit the waveform display into up to 6 split creens. This makes it possible to split the isplay of signals between the input and output

a three-phase inverter and display them

imultaneously.

aveform display allows you to display

waveforms for the voltage alone or the current

lone, or arbitrarily set the display position, so

you can also display only the signals you want

o compare one above the other.

hen evaluating inverter efficiency, sometimes

mall efficiency changes can hardly be

recognized with just numerical values

rend display makes it poss m efficiency as trend data in time series to help capture even small changes visually. Trend data

nt val

ver several minutes or several days can be isplayed.

Trend display can be saved with the screen hardcopy function. To save numerical data, a store function is used.

e to display

nt

e to

Setting information

ombination display of Information and Numerical screens

Custom

NEWNEWNEWNEW

Customize display screen

he screen can be split into two, with one bove the other, and two types of screens can e displayed simultaneously. Screen can be elected from Numerical, Waveform, Trend, Bar raph, and Vector displays. nother new function allows you to press the

NFO button on the Numerical screen to display

I

he setting information in the upper row and

utomatically scale down the numerical

nformation displayed in the lower row.

mage data can be loaded onto the screen an

he position and size of the numerical data can

e specified

e display screen can be customized so that

he corporate logo of your company is displayed

n the screen, or only the measurement items ou want to view, such as input and output

iciency or frequency, are displayed one above

he other.

The data for the created screen n

B storage device.

5

ApplicationsApplications

*Also refer to the features of other applications

Inveertrt

er

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Applications

Converter section

KeywordKeyword

Keyword

Input/Output Efficiency Measurements of Inverters,

Input/Output Efficiency Measurements of Inverters, Matrix Converters, Motors, Fans, and Pumps

Matrix Converters, Motors, Fans, and Pumps

Torque

Inverter section

rotation

sens

rive circuit

.

onvert AC to DC signals

1 2

ree-phase input, power is

easured with the three-phase three-wire system

Overview

The WT1800 is capable of performing up to 6 power input measurements to make it possible to perform an inverter efficiency test between the input and output in inverter evaluation. In addition, a motor evaluation function (option) makes it possible to simultaneously monitor voltage, current, and power changes, as well as rotation speed and torque changes

Modulate DC signal and convert to any AC signal

3 4 5 6

* In this example, measurement is performed with the three-phase three-wire system (at 3V3A) to verify the (inter-phase)

oltage and current of each phase.

M

indicates measurement points and input to the power analyzer.

cates connecting the motor output to the

motor signal input (/MTR) of the power analyzer

Advantages of WT1800

n 5 MHz range and 2 MS/s high-speed sampling n Up to the 500th order harmonic measurement

The vertical resolution in power measurements is one of the important elements for high-precision measurements. The WT1800 is capable of 16-bit high resolution and approximately 2 MHz sampling to make it possible to measure faster signals with higher precision.

Voltage/

current range

5 MHz

Approx.

2 MS/s 16-bit

(/G5 and /G6 options)

Yokogawa’s previous model* provides two different measurement modes, called Normal and Harmonic, and each of the measurements is performed separately. The WT1800 makes it possible to simultaneously measure voltage, current fundamental wave, harmonic components, and harmonic distortion factor (THD) in the Harmonic measurement mode, along with the conventional voltage and current RMS values in the Normal measurement mode. You do not need to switch modes and can measure all data at high speed. In addition, up to the 500th order harmonic can be measured for fundamental frequencies.

Simultaneous

harmonic

Up to the

500th order

*Comparison with Yokogawa’s previous model WT1600

n Boost converter efficiency and inverter efficiency evaluation

To evaluate the inputs and outputs of inverters including boost converters, at least 5 power measurement inputs are required. The WT1800 provides 6 inputs to make it possible to evaluate all aspects of inverters. In addition, a new individual null function makes it possible to set the DC offset only on a particular input channel as the null value. This makes it possible to perform more accurate measurements.

6-input6-input

Efficiency

measurement

Individual

null function

6

null function

n Dual harmonic measurement (/G6 option)

In previous models, harmonic measurement has been limited to a single line. The WT1800 is capable of performing two-line simultaneous harmonic measurements with one unit for the first time in the industry. The ability to simultaneously measure harmonics for the input and output signals not only reduces the switching time but also makes it possible to perform simultaneous data analysis for the input and output, which has not been possible with the previous models.

The following measurements can be performed for up to the 500th order Single harmonic measurement (/G5 option) Dual harmonic measurement (/G6 option)

Dual harmonic

measurement

Simultaneous

input/output

measurement

Up to the

500th order

T

ApplicationsApplications

Also refer to the features of other applications

s

Applications

Product Features Functions/Displays Applications Software Comparisons Explanations Specifications

n Delta computation function (/DT option) n Electrical angle/rotation direction measurements

Differential

voltage/current

Star-delta

conversion

Delta-star

conversion

U1

T-phase S-phase

Figure 1 Line voltage/phase current

Typical Product Configuration

Direct input measurements at less than 50 A: WT1806-06-D-HE/B5/G6/DT/V1/MTR 6 power inputs, current measurement range 10 mA to 55 A, built-in printer, dual harmonic, delta computation, RGB output, motor evaluation function Measurements at more than 50 A using a current sensor: WT1806-60-D-HE/B5/G6/DT/V1/MTR 6 power inputs, current measurement range 100 μA to 5.5 A (measure AC/DC current sensor output), built-in printer, dual harmonic, delta computation, RGB output, motor evaluation function

It is possible to obtain the differential voltage, line voltage, phase voltage, etc. by obtaining the sums and differences of instantaneous measurement values of voltage and current in each element.

Differential voltage/current: Differential voltage and current between two elements are computed in the three-phase three-wire system.

lLine voltage/phase current: Line voltage and phase current that

are not measured are computed in the three-phase three-wire system (Figure 1).

lStar-delta conversion: Line voltage is computed from the phase

voltage using the three-phase four-wire system data. Delta-star conversion: Phase voltage is computed from the line voltage in the three-phase three-wire system (3V3A system) (Figure 2).

R-phase

Phase current

Computed value

Line voltage

I1

I2

U2

*For detailed specifications, see the page on the specifications. You need to provide a cable for voltage measurements when wiring.

T-phase S-phase

R-phase

Phase

U1

voltage

Phase

voltage

U2

Figure 2 Delta-star conversion

Phase

voltage

Computed value

U3

of motors

Electrical angle*Electrical angle*

A-, B-, and

Analog/pulse

DL850 ScopeCorder

*1: Detailed switching waveforms of inverters cannot

be viewed with the WT1800. If you need to verify the waveforms, you can use the DL850 ScopeCorder, which is capable of 100 MS/s, 12-bit isolated input. For details, please see Yokogawa’s website or catalog (Bulletin DL850-00EN).

(/G5 and /G6 options) (/MTR option)

A motor evaluation function makes it possible to measure the rotation speed, torque, and output (mechanical power) of motors from rotation sensor and torque meter signals. The input signal from the rotation sensor and torque meter can be selected from analog signal or pulse signal.

Z-phases

inputs

Furthermore, A-phase, B-phase, and Z-phase input terminals have been newly added. The A-phase and B-phase make it possible to detect the rotation direction of motors. In addition, electrical angle* can be measured using Z-phase signals.

* Electrical angle measurements require the /G5 or /G6 option. * Please purchase a torque sensor and rotation sensor separately. Pulse/analog inputs are available for the motor evaluation function of the WT1800.

Support for Performance Testing of

Multiple Home Appliances

1 to 6 home appliance

o perform high precision power evaluation on the production line, a single WT1800 unit does the work for up to six single-phase power analyzers to

Overview

measure voltage, current, power, frequency, power factor, and harmonic distortion factor*. Also an independent integration function is available for each input element to start and stop integration. Since data can be collected remotely by communicating with just a single WT1800 unit, it is easy to create programs.

Advantages of WT1800

n Standby and operation power measurements of up to six devices with a single unit

Power measurements of up to six devices can be performed with a single unit. In standby power measurement, 1 mA or less measurement is supported since measurements can be performed from an effective input of 1% of the small current range in the rated 10 mA range. Also, an average active power function allows you to calculate the mean power* by intermittent oscillation control signals.

*User-defined computation is used.

Standby powerStandby power

1 2 3 4 5 6

All-channel

frequency

measurement*

*The /G5 or /G6 option is required for the harmonic distortion factor measurement. Also, the /FQ option is required to measure four or more frequencies.

n Combined use with ScopeCorder for analog output

(/DA option)

A D/A output connector on the rear panel allows you to convert a

20-channel

output

16-bit resolution

DA zoomDA zoom

measurement value to ±5 V (rated value), 16-bit high resolution DC voltage value and output it. Up to 20 items can be output simultaneously. Also, the ability to set the upper and lower limits for an arbitrary range of input signals and scale up and down the D/A output in the range from -5 V to +5 V allows you to enlarge a changing part of the input signals to monitor it with a ScopeCorder, etc.

* 0 to 5 V is fixed for some items, such as frequency measurement.

.*

Average

active power

Typical Product Configuration

WT1806-06-M-HE/EX6/B5/G6/FQ/V1/DA: 6 power inputs, current measurement range 10 mA to 55 A, or clamp measurement (with a clamp input terminal), built-in printer, all-channel frequency measurement (×12), RGB output, dual harmonic, DA output

*For detailed specifications, see the page on the specifications. You need to provide a cable for voltage measurements when wiring.

*An external input terminal (EX) allows you to perform both direct input measurement and clamp measurement. *Direct input and current sensor input cannot be connected Simultaneously.

7

ApplicationsApplications

Also refer to the features of other applications

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s

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ano

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Van

)

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t

(A) indi

a

.

r

B

converte

C

converte

C

l

P

m

P

Load

batter

Storage

HV, etc

Plug-in

E

Applications

KeywordKeyword

Keyword

Power Generation and Conversion Efficiency

Measurements in New Energy Markets, including

Measurements in New Energy Markets, including Photovoltaic and Wind Power Generation

Photovoltaic and Wind Power Generation

Power conditione

.

1

oost

5

meter (photovoltaic power generation

A

e anemometer (wind power generation

urrent charge contro

ower storage syste

ower Flow of Photovoltaic Power Generation

nergy generated by photovoltaic cell modules and wind turbines is converted from DC to AC by a power conditioner. Furthermore, the voltage is converted by a charge control unit

Overview

for the storage battery. Minimizing losses in these conversions improves efficiency in the overall energy system. The WT1800 is capable of providing up to 6 channels of power inputs per unit to make it possible to measure the voltage, current, power, and frequency (for AC) before and after each converter, as well as converter efficiency and charging efficiency.

Advantages of WT1800

n Max. 1000 V/50 A × 6-line direct measurement

Wide voltage/

Wide voltage/ current range

current range

Efficiency

measurement

Synchronized

operation

Direct input terminals in a voltage range from 1.5 V to 1000 V and current range from 10 mA to 5 A or 1 A to 50 A make it possible to perform high-precision measurements without using a current sensor. Furthermore, power conditioner evaluation requires multiple-channel power measurements, such as inputs/outputs from a boost converter, inverter, and storage battery. The WT1800 is capable of providing up to 6 channels of power inputs to make it possible to simultaneously perform power measurements at multiple points with one unit. In addition, two units can be operated in synchronization for multi-channel power evaluation.

2 3

AC/D

Power sold/bought

4

Charge/discharge

6

n Maximum Power Peak Tracking (MPPT) measurement

In photovoltaic power generation, an MPPT control is performed

MPPTMPPT

Maximum power

peak value

to effectively utilize voltage generated by photovoltaic cells in an attempt to maximize the harvested power. The WT1800 is capable of measuring not only the voltage, current, and power but also the voltage, current, and power peak values (plus (+) and minus (-) sides, respectively). Also, the maximum power peak value (plus (+) and minus (-) sides) can be measured.

Reverse power flow

Grid interconnection or smart grid (next-generation power network)

ndicates measurement points and input

o the power analyzer.

connecting the sensor signals to the

uxiliary input (/AUX) of the power analyzer

Max. power value

cates

n Power integration measurements

Power

sold/bought

Charge/

discharge

Average active

power

n Trigger when an error occurs

Data saving

when an

error occurs

8

(power sold and bought/charge and discharge)

A power integration function makes it possible to measure the amount of power sold/bought in grid interconnection and of battery charge/discharge. The WT1800 provides a current integration (q), apparent power integration (WS), reactive power integration (WQ), as well as effective power integration capable of integration in the power sold/bought and charge/discharge modes. Furthermore, a user-defined function makes it possible to calculate the Average active power within the integration period. This makes it possible to more accurately measure the power consumption of an intermittent oscillation control unit in which power fluctuates greatly.

(User-defined event function)

An event trigger function is helpful in verifying that voltage or current changes are within the design tolerance range. Setting the normal power generation range as a judgment condition (trigger) detects measurement data that falls out of that range and save it to the memory.

Current value

* This is just an illustration. Actual measurements are affected by noise.

Voltage value

Typical voltage, current, and power measurements in MPPT contro

plus (+) side (P+pk) and minus (-) side (P-pk) of max. power peak value

Typical measurement of power value (P1),

power value

ApplicationsApplications

Ballas

C

o

e

I1

I2

I

T

t

L

2

AC pow

ly

Switchi

ng

regulato

*Also refer to the features of other

app

lications.

e

Example of fluorescent lamp

c

onne

ctio

n

Applications

Product Features Functions/Displays Applications Software Comparisons Explanations Specifications

n Ripple factor and power loss measurements using user-defined function

A user-defined function makes it possible to compute not only the conversion efficiency but also the power loss, DC voltage and DC current ripple factors between the input and output. This is helpful in multiplying a factor or slightly changing the arithmetic expression according to the purpose. Up to 20 arithmetic expressions can be set. Display names for the arithmetic operations F1, F2, and so on can be changed freely.

Ripple factorRipple factor

Power lossPower loss

s4YPICALARITHMETICEXPRESSIONS

1. DC voltage ripple factor = [(Voltage peak value (+) – Voltage peak value (-))/2 × DC voltage value (mean)] × 100

2. Power loss = Output power – Input power

Typical Product Configuration

Direct input measurements at less than 50 A: WT1806-06-F-HE/EX6/B5/G6/AUX 6 power inputs, current measurement range 10 mA to 55 A, or clamp measurement (with clamp input terminals), built-in printer, dual harmonic, auxiliary input Measurement at more than 50 A using a current sensor: WT1806-60-F-HE/EX6/B5/G6/AUX 6 power inputs, current measurement range 100 μA to 5.5 A (measure AC/DC current sensor output), external current sensor input (for clamp measurement), built-in printer, dual harmonic, external signal input

*Direct input and current sensor input cannot be connected simultaneously.

*For detailed specifications, see the page on the specifications. You need to provide a cable for voltage measurements when wiring.

Power Measurements of Fluorescent and

Power Measurements of Fluorescent and Light Emitting Diode (LED) Lights

Light Emitting Diode (LED) Lights

n Harmonic distortion factor (THD) measurement

(/G5 and /G6 options)

Harmonic

distortion factor

Voltage fluctuations and harmonic flow into the power system due to reverse power flow. A harmonic measurement function makes it possible to compute and display the harmonic distortion factor (THD) by measuring harmonic components.

n Immediately print out screens (/B5 option)

Print outPrint out

Multiple engineers may want to verify detailed data during a test. A built-in printer makes it possible to print data immediately on the spot and for multiple engineers to verify the data simultaneously.

wire

U

I

onnected by general

power wire connection

n the primary sid

* Lamp current can be obtained either by measuring the output of a wide range current sensor as shown in the figure, or by obtaining the differential current using computation (delta computation function).

Overview

Since the switching frequency of fluorescent lamp is sometimes as fast as approximately tens of kHz, a wide range power measurement is required. Also, sometimes dimming control by a PWM modulation circuit is performed for the LED lights. The WT1800 provides a wide range from DC to up to 5 MHz to allow you to evaluate these kinds of harmonic signals.

Advantages of WT1800

t

A

wisted wire for voltage measuremen

* An external input terminal (EX) allows you to perform both direct input measurement and clamp measurement.

amp current = I1−I

2

1

n Tube current measurements of fluorescent lamps

(/DT option)

A ballast uses harmonic frequency signals to illuminate the fluorescent lamp. The frequency is generally as fast as tens of kHz. A wide range capability of power measurement is important to reliably capture the signals. Also, since tube current cannot be measured directly, it is obtained either by measuring the difference between the output current of the ballast and the cathode current using a current sensor, or by using the delta computation of the WT1800 (/DT option).

Note: Tube current is obtained by the computation of a difference in the instantaneous values instead of the effective current values.

Tube current

5 MHz range5 MHz range

Tube current

measurement

Delta computation

Differential current

supp

1 2

A

* Be careful of the current range. Since the current value is generally small, use the 5A input element (in the 10 mA to 5 A range).

nanc

umIll

eretm

n Light emitting efficiency and power measurements of LED lights (/AUX option)

It is important for LED lights to increase the light emitting efficiency while at the same time reducing the current and power consumption. The WT1800 allows you to measure voltage, current, and power, as well as compute the light emitting efficiency (lamp efficiency) by connecting the output of an illuminance meter, etc. to the external signal input terminal (/AUX option).

DC/ACDC/AC

Light emitting

efficiency

Typical Product Configuration

WT1806-06-H-HE/EX6/G6/DT/DA: 6 power inputs, current input range 10 mA to 55 A, or clamp measurement (with a clamp input terminal), dual harmonic, delta computation (differential current measurement), DA output

*For detailed specifications, see the page on the specifications. You need to provide a cable for voltage measurements when wiring.

*Direct input and current sensor input cannot be connected simultaneously.

9

ApplicationsApplications

InInve

vevrtrterer s

s ss

ecectitiionononon

In

pupupupu

t

D

Moto

Torq

rotatio

senso

Load

Batteries

p

n

pufor

fo

and

e

p

.

*Also refer to the features of other

app

lications

Applications

Input/Output Efficiency Measurements of Inverter Motors

Input/Output Efficiency Measurements of Inverter Motors for Hybrid Electric Vehicles

for Hybrid Electric Vehicles (HEV), Electric Vehicles (EV), and Plug-in Hybrid Electric Vehicles (PHEV)

and Plug-in Hybrid Electric Vehicles (PHEV)

KeywordKeyword

Keyword

(HEV), Electric Vehicles (EV),

.

1

The WT1800’s ability to perform up to 6 power input measurements makes it possible to evaluate the battery’s charge and discharge characteristics, and test and evaluate the

Overview

fficiency between the input and output of inverters. A motor evaluation function (/MTR option) makes it possible to simultaneously monitor changes in the voltage, current, and ower, as well as changes in the rotation speed and torque

Advantages of WT1800

Booster Converter section

r

rive circuit

2 3 4 5 M

Modulate and convert DC to AC signals

n

(/G5 and /G6 options)

Harmonic measurements from a 0.5 Hz low frequency

In motor testing, evaluation is performed at various rotation speeds from low to high speeds. The WT1800 supports the lower limit frequency of 0.5 Hz to make it possible to measure harmonics at a very low motor rotation speed without using an external sampling clock.

Harmonic

measurements

from 0.5 Hz

ue/

n

r

n Inverter, motor, and DC/DC converter efficiency measurements

A single WT1800 unit is capable of measuring the effective power, frequency, and motor output in order to measure the total efficiency, including inverter and motor efficiency and battery DC/DC conversion efficiency. DC power accuracy has been improved to ±0.05% to ensure more accurate measurements.

Inverter/motor

efficiency

measurements

DC power ±0.05%

AC power±0.1%

n Offset correction measurement by null function

After you finish connecting the wires for inverter motor testing,

NullNull

Individual

offset adjustment

10

Typical Product Configuration

WT1805-50-H-HE/B5/G6/DT/DA/MTR: 5 power inputs, current input range 100 μA to 5.5 A (measuring AC/DC current sensor output), built-in printer, dual harmonic, delta computation, DA output, motor evaluation function

you may find a value will not become zero due to the influence of the ambient environment or other reasons and the offset value will be applied inappropriately even before starting measurements. With the previous power analyzer model*, there is no choice other than to turn all inputs on and off collectively, so unintended offset adjustment is performed even for inputs for which you do not want adjust. With the WT1800, only an input for which you want to perform offset adjustment can be turned on and off.

*Comparison with Yokogawa’s previous model WT1600

*For detailed specifications, see the page on the specifications. You need to provide a cable for voltage measurements when wiring.

n Battery charge and discharge measurements

In integrated measurement, the battery charge and discharge can be evaluated. Instantaneous positive and negative values captured at an approximately 2 MS/s high-speed sampling rate are integrated, respectively, and each of the total values is displayed.

Typical repetitive high-speed charging and

Battery

charge/discharge

Approx. 2 MS/s

high-speed

sampling

discharging signals

Effective power amount (Wh+)

Effective power amount (Wh-)

Charge current amount Ah (power amount Wh) and discharge current amount Ah (power amount Wh) can be integrated, respectively.

n DA output and remote control (/DA option)

20-channel

output

Integration by

remote control

Sometimes you may want to check changes in data, along with other measurement data (temperature, etc) at the same time when you acquire communication data, such as voltage, current, power, and efficiency data. A DA output function allows you to retrieve analog signals on up to 20 channels. Also, remote control signals make it possible to control the start, stop, and reset of integration by external analog signals. Furthermore, integration can be linked by inputting an analog trigger signal from another device.

Charge

Discharge

800

2

gngg

ng

RootaRta

intient

p

meequeq

q

uuii

p

t

MotorConverter

Converter

Generator

Storage

batterie

Eng

Harmonic Measurements

G

N

hil

s

all

*Als

o re

fer

to t

he f

eatu

res

of oother

ther

app

lic

liclica

lica

tion

ion

s.s.s.*Als*Als

o reo re

fer

to t

to

he f

eatueatu

res

of o

ther

app

lica

tion

s.s.

Harmonic Measurements

of Aircraft Power Systems

ApplicationsApplications

Applications

Power Measurements of

Green IT Data Center Servers

SoftwareSoftware

Software

Product Features Functions/Displays Applications Software Comparisons Explanations Specifications

ew large data centers based on cloud computing are being constructed w the importance of energy conservation is growing. Since the WT1800 is capable of measuring up to 6 power inputs, the current and power consumption of up to six servers can be measured with a single unit. The

tandard GP-IB, USB, and Ethernet communication functions allow the operator to monitor data in multiple locations by collecting data via communication.

Overview

High order harmonic measurements are important in the aircraft industry. The WT1800 provides a function to measure up to 150 kHz harmonics and

ows you to measure up to the 500th order harmonic.

Overview

Advantages of WT1800 Advantages of WT1800

n Measurement of up to the 255th order component even at a 1 kHz fundamental wave

Up to the 500th order harmonic can be measured at a 400 Hz fundamental frequency. Also, up to the 255th order harmonic can be measured at 1 kHz. Up to 150 kHz harmonic measurements are supported for aircraft testing that requires high order harmonic measurements.

400 Hz

150 kHz

harmonic

Typical Product Configuration

WT1806-60-H-HE/G6/DA: 6 power inputs, current input range 100 μA to 5.5 A (measurement using a current sensor), dual harmonic, DA output

400 Hz

fundamental wave

Up to the 500th order

*For detailed specifications, see the page on the specifications. You need to provide a cable for voltage measurements when wiring.

(/G5 and G/6 options)

1 kHz

fundamental wave

Up to the 255th order

n Integrated Power and Harmonic Distortion Factor Measurements

The WT1800 is capable of measuring long hours of integrated current (Ah) and power (Wh) in order to understand the amount of power consumption. It is not only possible to measure 50/60 Hz AC signals, but also perform high precision DC measurement indispensable for the DC power supply evaluation. Also, the /AUX option input allows you to monitor heat generation, etc. In addition, a DA output function (/DA option) allows you to output analog signals to an external recorder (ScopeCorder, etc.) and perform long hours of monitoring of current and power along with the temperature and other data.

Integrated

current

Typical Product Configuration

WT1806-06-H-HE/EX6/G6/DA: 6 power inputs, current input range 10 mA to 55 A, or clamp measurement (with a clamp input terminal), dual harmonic, DA output

*An external input terminal (EX) allows you to measure both direct input measurement and clamp measurement. *Direct input and current sensor input cannot be connected simultaneously.

Harmonic

Integrated power

DC current ±0.05%

*For detailed specifications, see the page on the specifications. You need to provide a cable for voltage measurements when wiring.

Harmonic

distortion factor

e

760122 WTViewer Software760122 WTViewer Software

n Multi-channel synchronized measurements using WTViewer

Two-unit

synchronized

operation

12-power

measurements

GP-IB connection Ethernet

communication USB communication

* Memory media (USB storage device) is required.

WTViewer is application software that allows you to read numerical data measured with a WT1800 Precision Power Analyzer to a PC via Ethernet, GP-IB, or USB communication, and display and save the numerical values. Up to 12 power inputs can be measured simultaneously in synchronized measurements between two units. Also, the ability to collect data of up to four WT1800 units allows you to measure the conversion efficiency, power, and power loss of up to 24 power inputs.

Note: Make sure the model and suffix codes of the two units are the same.

Measurable number

of units

1 to 4 units

M 1 2 3

ID1Pm

FTP server

function

×

ID1P

∑

A

Up to 20 inverter/converter efficiency computations can be set.

s#OMPUTATIONSETTINGEXAMPLES

Inverter discharge efficiency ID1P Inverter charge efficiency ID1P1/ID1P

Synchronization cable

(BNC-BNC cable)

ID2P1ID1P1

∑

4 5

6

COMING SOON

A/ID1P1×100[%], Converter charge efficiency ID2P1/D2P

∑

A×100[%], Motor efficiency ID1Pm/ID1P

WT1

-ID

7 8 9

∑

ID2P

A

∑

A×100[%]

∑

A×100[%]

ine

Typical Product Configuration

WT1805-50-H-HE/G5/MTR × 2 units: 5 power inputs, current input range 100 μA to 5.5 A (using a current sensor), or clamp measurement (with a clamp input terminal), harmonic measurement

*For detailed specifications, see the page on the specifications. You need to provide a cable for voltage measurements when wiring.

11

ComparisonsComparisons

Comparisons

Comparison between WT1600 and WT1800Comparison between WT1600 and WT1800

g

Comparison with the previous model (main changes)

Voltage input terminal Current input terminal External sensor input terminal Basic voltage/current accuracy Basic power accuracy Frequency range Voltage/Current frequency range (-3 dB, typical) Sampling speed Wiring setting method Selects specified range Effective input range Screen size and resolution Data update rate

Line filter

Frequency filter Harmonic measurement Harmonic mode

Fundamental frequency of the PLL source

Upper limit of the measured order Harmonic analysis number Integration Integration mode Delta computation function Auto printing function Screen print-out function Printer width/length Crest factor (CF=peak/minimum rms) Average (moving average) Store function Store items Screen shot image format Frequency measurements Rotation speed input Universal analog inputs SCSI interface Internal HDD DA output channels numbers DA output resolution Data memory Communication command compatibility GP-IB communication Ethernet communication Ethernet communication protocol USB communication RS232 communication

Plug-in terminal (safety terminal) Large binding post Insulated BNC connector (option) +/-0.1% +/-0.05% DC, 0.1Hz to 1 MHz 5 MHz (-3 dB, typical) approximately 2 MS/s Selects wiring and element numbers Yes 1% to 110% of range rating

8.4-inch (1024×768) 50 m, 100 m, 200 m, 500 m, 1, 2, 5, 10, 20 [sec] OFF, digital filter 100 Hz to 100 kHz (100 Hz step) analog filter 300 kHz, 1 MHz OFF, 100 Hz or 1 kHz /G5 option or /G6 option Simultaneous normal and harmonic measurement

0.5 Hz to 2600 Hz (internal sampling clock) (without external sampling clock function) Up to 500 order select from 1 system (/G5 option) or 2 systems (/G6 option) Active power, current, a pparent power, reactive power Charge/discharge, sold/bought mode /DT option Yes Built-in printer 80 mm / 10 m 300 Sets between from 2 to 64 counts Store Numeric BMP, PNG and JPEG 3 sources (standard), 12 sources (/FQ option) A-phase, B-phase, Z-phase input (/MTR option) Two analog inputs (/AUX option) N/A N/A 20 ch (/DA option) 16 bits Direct save to USB device up to 1 GB Approximately 90% command compatibility Standard Standard (No HDD and No SCSI) VXI11 USB-TMC N/A

Plug-in terminal (safety terminal) Large binding post Insulated BNC connector (standard) +/-0.1% +/-0.1% DC, 0.5 Hz to 1 MHz No definition approximately 200 kS/s Selects wiring system pattern N/A 1% to 110% of range rating

6.4-inch (640×480) 50 m, 100 m, 200 m, 500 m, 1, 2, 5 [sec]

OFF, 500 Hz, 5.5 kHz, 50 kHz

OFF or ON Standard Selects normal or harmonic mode 1 to 10 Hz (use external sampling clock) 10 Hz to 440 Hz (internal sampling clock) Up to 100 order 1 system Active power, current Charge/discharge mode Standard N/A Built-in printer, Ethernet network printer 80 mm / 10 m 300 Selects from 8, 16, 32 or 64 counts Store / Recall Numeric, waveform (1002 peak to peak data) TIFF, BMP, Post Script, PNG and JPEG 3 sources (standard) 1 input (/MTR option) N/A Yes (/C7) Yes (10 GB, /C10) 30 ch (/DA option) 12 bits approximately 11 MB (internal), FDD, HDD

--Standard (select GP-IB or RS-232) Option (with HDD and SCSI option) Yokogawa original protocol N/A Standard (select GP-IB or RS-232)

WT1600WT1800

* There are restrictions on some specifications and functions. For details, refer to the specifications. * A table comparing commands between the two models will be published on the Products page of the Yokogawa website.

Characteristics comparisonCharacteristics comparison

g

Examples of frequency characteristics of the WT series and the PZ4000

Examples of frequency and power accuracy characteristics Total power error with rated range input for an arbitrary power factor (at 50/60 Hz)

2

1

0

-1

-2

-3

WT230 150 V / 1 A range

-4

WT500 100 V / 0.5 A range

-5

WT1800 150 V / 1 A range

-6

WT3000 100 V / 5 A range

-7

PZ4000

Accuracy (cos Ø = 1) [% of range]Error [% of range]

300 V pk / 1 A pk range

-8

-9 1 10 100 1000 10000 100000 1000000

Frequency [Hz]

Influence of the common-mode voltage on the readings Example of the frequency and power accuracy for zero power factor

3

WT230 150 V

WT230 1 A range

WT500 15 V range

2

WT500

0.5 A range WT1800

100 V range WT1800

1 A range 5 A element

1

WT1800 1 A range 50 A element

12

0

1 10 100 1000 10000 100000

WT3000 100 V range

WT3000

0.5 A range PZ4000

200 V pk range PZ4000

2 A pk range

Frequency [Hz] Frequency [Hz]

1

0.1

0.01

1.5

0.5

-0.5

Accuracy [% of range] Total error for the power range value [% of range]

-1.5

WT230 WT500 WT1800 WT3000 PZ4000

0.001 0.01 0.1 1

1

0

WT230 150 V / 1 A range

WT500 100 V / 0.5 A range

-1

WT1800 150 V / 1 A range

1 10 100 1000 10000

cos Ø = power factor

WT3000 100 V / 5 A range

PZ4000 300 V pk / 1 A pk range

Comparison of Power Analyzer WT Series and PZComparison of Power Analyzer WT Series and PZ

0.2

0

k k

g

Comparison of the specifications and functions of the WT series and the PZ4000

WT1800 WT3000 WT500 WT210/WT230 PZ4000

Basic power accuracy (50/60 Hz) DC power accuracy Power frequency range Voltage/Current frequency range Input elements

Voltage range

InputMeasurement parametersDisplayMeasurement /functionsOther features

Current range (direct input)

Current range (external sensor input)

Guaranteed accuracy range for voltage and current

Main measurement parameters

Crest factor MAX hold Voltage RMS/MEAN simultaneous measurement Average active power Active power integration (WP) (Wh) Apparent power integration (WS) (VAh) Reactive power integration (WQ) (varh)

Frequency measurement

Efficiency measurement

Motor evaluation

Auxiliary inputs FFT spectral analysis User-defined functions Display

Display format

Sampling frequency Harmonic measurement Dual harmonic measurement IEC standards-compliant harmonic measurement IEC flicker measurement Cycle by cycle measurement Delta calculation function

DA outputs

Storage (internal memory for storing data)

Interfaces

Synchronous measurement

Data update interval

Removable storage Built-in printer

There are limitations on some specifications and functions. See the individual product catalogs for details.

0.1% of reading +0.05% of range

0.05% of reading +0.1% of range DC, 0.1 Hz to 1 MHz 5 MHz (typical) 1, 2, 3, 4, 5, 6

1.5, 3, 6, 10, 15, 30, 60, 100, 150, 300, 600, 1000 [V]

10 m, 20 m, 50 m, 100 m, 200 m, 500 m, 1, 2, 5 [A] or, 1, 2, 5, 10, 20, 50 [A]

50 m, 100 m, 250 m, 500 m, 1, 2.5, 5, 10 [V] (opt.)

1% to 110%

Voltage, current, active power, reactive power, apparent power, power factor, phase angle, frequency, peak voltage, peak current, crest factor, integration (Wh, Ah, varh, Vah) Maximum 300 Yes

Yes

Yes (user defined unction) Yes Yes Yes

3 ch (up to 12 channels with option /FQ)

Yes Torque, A / B / Z phase signal inputs (/MTR), 6 inputs, and motor evaluation (opt.) Yes (2 inputs) (opt.) No Yes (20 functions)

8.4-inch XGA TFT color LCD Yes (numeric, waveform, trend) /G5 (opt.) or /G6 (opt.) (bar graph, vector) Approximately 2 MS/s (/G5) (opt.) (/G6) (opt.)

No

No No (/DT) (opt.)

20 channels (/DA) (opt.)

Approximately 32 MB

GP-IB, USB, Ethernet RGB output (/V1) (opt.)

Yes 50 m, 100 m, 200 m, 500 m, 1, 2, 5, 10, 20 [S] USB front side (/B5) (opt.)

0.02% of reading +0.04% of range

0.05% of reading +0.1% of range DC, 0.1 Hz to 1 MHz 1 MHz 1, 2, 3, 4

15, 30, 60, 100, 150, 300, 600, 1000 [V]

5 m, 10 m, 20 m, 50 m, 0.1, 0.2, 0.5, 1, 2 [A] or, 0.5, 1, 2, 5, 10, 20, 30 [A]

50 m, 100 m, 200 m, 500 m, 1, 2, 5, 10 [V]

1% to 130%

Voltage, current, active power, reactive power, apparent power, power factor, phase angle, frequency, peak voltage, peak current, crest factor, integration (Wh, Ah, varh, Vah) Maximum 300 Yes

Yes

Yes (user defined unction) Yes Yes Yes

2 ch (up to 8 channels with option /FQ)

Yes Torque, rotating speed input (/MTR), 4 inputs, and motor evaluation (opt.) No Yes (/G6) (opt.) Yes (20 functions)

8.4-inch VGA TFT color LCD Yes (numeric, waveform, trend) /G6 (opt.) (bar graph, vector) Approximately 200 kS/s (/G6) (opt.) No (/G6) (opt.) (10 cycle / 50 Hz, 12 cycle / 60 Hz, 16 cycles (50 and 60 Hz) (/FL) (opt.) (/CC) (opt.) (/DT) (opt.)

20 channels (/DA) (opt.)

Approximately 30 MB

GP-IB, RS-232 (/C2) (opt.) USB (/C12) (opt.), VGA output (/V1) (opt.) Ethernet (/C7) (opt.) Yes 50 m, 100 m, 250 m, 500 m, 1, 2, 5, 10, 20 [S] PC card interface, USB (/C5) (opt.) front side (/B5) (opt.)

0.1% of reading +0.1% of range

0.1% of reading +0.1% of range DC, 0.5 Hz to 100 kHz 100 kHz 1, 2, 3

15, 30, 60, 100, 150, 300, 600, 1000 [V]

500 m, 1, 2, 5, 10, 20, 40 [A]

50 m, 100 m, 200 m, 500 m, 1, 2, 5, 10 [V] (opt.)

1% to 110%

Voltage, current, active power, reactive power, apparent power, power factor, phase angle, frequency, peak voltage, peak current, crest factor, integration (Wh, Ah, varh, Vah) Maximum 300 Yes

Yes

Yes (user defined unction) Yes Yes Yes

2 ch (up to 6 channels with option /FQ)

Yes

No

No No Yes (8 functions)

5.7-inch VGA TFT color LCD Yes (numeric, waveform, trend) /G5 (opt.) (bar graph, vector) Approximately 100 kS/s (/G5) (opt.) No

No

No No (/DT) (opt.)

No

Approximately 20 MB

USB, GP-IB (/C1) (opt.) Ethernet (/C7) (opt.) VGA output (/V1) (opt.) Yes

100 m, 200 m, 500 m, 1, 2, 5 [S]

USB No

0.1% of reading +0.1% of range

0.3% of reading +0.2% of range DC, 0.5 Hz to 100 kHz 100 kHz 1 (WT210), 2 or 3 (WT230)

15, 30, 60, 100, 150, 300, 600 [V]

5 m, 10 m, 20 m, 50 m, 0.1, 0.2, 0.5, 1, 2, 5, 10, 20 [A] (WT210)

0.5, 1, 2, 5, 10, 20 [A] (WT230)

50 m, 100 m, 200 m [V] or 2.5, 5, 10 [V] (opt.)

1% to 130%

V

oltage, current, active power, reactive power, apparent power, power factor, phase angle, frequency, peak voltage, peak current, crest factor, integration (Wh, Ah) Maximum 300 Yes

No

Yes Yes No No

1 ch

Yes (WT230)

No

No No No 7-segment display

numeric (3 values)

Approximately 50 kS/s (/HRM) (opt.) No

No

No No No 4 channels (/DA4) (opt.) (WT210) 12 channels (/DA12) (opt.) (WT230) Maximum 600 samples (WT210) Maximum 300 samples (WT230) * Only reading in the WT is possible.

GP-IB or RS-232 (WT210) (opt.) GP-IB or RS-232 (WT230)

No

100 m, 250 m, 500 m, 1, 2, 5 [S]

No No

ComparisonsComparisons

Comparisons

0.1% of reading +0.025% of range

0.2% of reading +0.1% of range DC, 0.1 Hz to 1 MHz 5 MHz (typical) 1, 2, 3, 4, or 1, 2, 3 +Motor module

30, 60, 120, 200, 300, 600, 1200, 2000 [Vpk]

5 A module:

0.1, 0.2, 0.4, 1, 2, 4, 10 [Apk] (5 A rms) 20 A module:

0.1, 0.2, 0.4, 1, 2, 4, 10 [Apk] (5 A rms) 1, 2, 4, 10, 20, 40, 100 [Apk] (20 A rms)

0.1, 0.2, 0.4, 1 [Vpk]

5% to 70% (peak range)

Voltage, current, active power, reactive power, apparent power, power factor, phase angle, frequency, peak voltage, peak current, crest factor Maximum 20 No

Yes

No No No No

2 ch / module

Yes Torque and rotational velocity input (requires sensor input module 253771) (opt.) No Yes Yes (4 functions)

6.4-inch VGA TFT color LCD Yes (numeric, waveform, trend, X-Y, bar graph, vector) Maximum 5 MS/s Yes No

No

No No Yes

No

None, but acquisition memory has 100 kW/channel (up to 4 MW/channel can be installed with /M3 option)

GP-IB, RS-232, Centronics, SCSI (/C7) (opt.)

Yes Depends on waveform acquisition length and calculations FDD top side (/B5) (opt.)

(opt.) : Optional

Product Features Functions/Displays Applications Software Comparisons Explanations Specifications

g

Comparison of the accuracy and range between the WT series and PZ

.05

0.1 Hz WT3000 basic power accuracy 0.06% 1 MHz

Industrial electric equipment

Inverter (R&D and inspection)

(Power supply, motor, air-conditioner, etc.)

0.1

Power measurements on production and inspection lines

0.1 Hz PZ4000 basic power accuracy 0.125% 1 MHz

Basic power accuracy [%]

0.1 Hz WT1800 basic power accuracy 0.15% 1 MHz

0.5 Hz WT500 basic power accuracy 0.2% 100 kHz

0.5 Hz WT210/WT230 basic power accuracy 0.2% 100 kHz

Battery

Power consumption measurements of home appliances and OA equipment Maintenance of plant equipment related to heavy electric machinery, power, and process automation

13

Power measurement range [Hz]

ExplanationsExplanations

k

C

r

RMS value

C

=

S)

t

Explanations

SUPPORTS Crest Factor 6

The crest factor is the ratio of the waveform peak value and the RMS value.

rest facto

(CF, peak factor)

waveform peak

When checking the measurable crest factor of our power measuring instruments, please refer to the following equation.

rest factor (CF)

{measuring range

measured value (RM

* However, the peak value of the measured signal must be less than or equal to the continuous maximum allowed inpu

* The crest factor on a power meter is specified by how many times peak input value is

allowed relative to rated input value. Even if some measured signals exist whose crest factors are larger than the specifications of the instrument (the crest factor standard at the rated input), you can measure signals having crest factors larger than the specifications by setting a measurement range that is large relative to the measured

Calculation Method of Voltage and Current and Procedure to Set Synchronous Source

AC signals are repeatedly changing waveforms in terms of instantaneous values. An averaging calculation by the repeated periods is required to be performed to measure the power value of the AC signals. The WT1800 uses an ASSP method to perform averaging processing by the periods for the instantaneous data measured at an approximately 2 MS/s rate to obtain the measurement value.

CF setting (3 or 6)}

signal. For example, even if you set CF = 3, CF 5 or higher measurements are possible

as long as the measured value (RMS) is 60% or less than the measuring range. Also, for a setting of CF = 3, measurements of CF = 300 are possible with the minimum effective input (1% of measuring range).

Voltage waveform

waveform pea

MS value

ASSP Method

An ASSP (Average for the Synchronous Source Period) method is used to calculate the measurement value by performing calculation processing for the sampling data within the data update period (with the exception of the integrated power value WP and integrated current value q in the DC mode). This method uses a frequency measurement circuit to detect the period of the input signal set in the synchronous source and performs calculation using the sampling data in the interval equivalent to the integral multiple of the input period. Since the ASSP method basically is able to obtain the measurement value by just performing an averaging calculation for the interval of one period, it is effective for a short data update period or efficient measurement of low frequency signals. If this method cannot detect the period of the set synchronous source signal correctly, the measurement values will not be correct. Therefore, it is necessary to check to make sure the frequency of the synchronous source signal is measured and displayed correctly. For the notes of the settings of the synchronous source signal and frequency filter, refer to the instruction manual.

Selecting formulas for calculating apparent power and reactive power

There are several types of power––active power, reactive power, and apparent power. Generally, the following equations are satisfied: Active power P = UIcosØ (1) Reactive power Q = UIsinØ (2) Apparent power S = UI (3) In addition, these power values are related to each other as follows: (Apparent power S)

U : Voltage RMS I : Current RMS Ø : Phase between current and voltage Three-phase power is the sum of the power values in the individual phases.

These defining equations are only valid for sinewaves. In recent years, there has been an increase in measurements of distorted waveforms, and users are measuring sinewave signals less frequently. Distorted waveform measurements provide different measurement values for apparent power and reactive power depending on which of the above defining equations is selected. In addition, because there is no defining equation for power in a distorted wave, it is not necessarily clear which equation is correct. Therefore, three different formulas for calculating apparent power and reactive power for three-phase four-wire connection are provided with the WT1800.

2

= (Active power P)2 + (Reactive power Q)2 (4)

l TYPE1 (method used in normal mode with older WT Series models)

With this method, the apparent power for each phase is calculated from equation (3), and reactive power for each phase is calculated from equation (4). Next, the results are added to calculate the power. Active power: PΣ=P1+P2+P3 Apparent power: SΣ=S1+S2+S3(=U1×I1+U2×I2+U3×I3) Reactive power: QΣ=Q1+Q2+Q3

l TYPE2

The apparent power for each phase is calculated from equation (3), and the results are added together to calculate the three-phase apparent power (same as in TYPE1). Three-phase reactive power is calculated from three-phase apparent power and three-phase active power using equation (4). Active power: PΣ=P1+P2+P3 Apparent power: SΣ=S1+S2+S3(=U1×I1+U2×I2+U3×I3) Reactive power:

l TYPE3 (method used in harmonic measurement mode with WT1600 and PZ4000)

This is the only method in which the reactive power for each phase is directly calculated using equation (2). Three-phase apparent power is calculated from equation (4). Active power: PΣ=P1+P2+P3 Apparent power: Reactive power: QΣ=Q1+Q2+Q3

Current waveform

Setting Synchronous Source

In the case of such a signal, the synchronous source is set to the current signal side with less harmonic components. Even if harmonic components (noise) are superimposed on the current waveforms, measurements can be stabilized by turning on the frequency filter to detect a zero crossing reliably. When the frequency measurement results are correct and stable, you can consider the filter settings are right. A frequency filter also functions as a filter to detect a zero crossing of the synchronous source. That’s why a frequency filter is also called a synchronous source filter or a zero crossing filter.

2

(= )(U1×I1)

*S1, S2, and S3 are calculated with a positive sign for the leading phase and a negative sign for the lagging phase.

QΣ=SΣ2-PΣ

SΣ=PΣ2+QΣ

2

-P12+ (U2×I2)2-P22+ (U3×I3)2-P3

2

14

SpecificationsSpecifications

M

S

3-wire

(

t

3

e

Curre

[A]

/3

Acti

[W]

P1+P2

P1+P2+P3

A

∑

[VA]

TYPE2

S1-S2

3/2 ( S1+S2)

3/3 ( S1+S2+S3 )

S1+S2+S3

TYPE3

∑

2

Q

∑

2

Q

[

]

Q1+Q2Q1+Q2+Q3

TYPE2

∑

T

3

Q1+Q2Q1+Q2+Q3

Corrected Powe

c2Pc

c3

I

[Wh]

WP1+WP2

WP1+WP2+WP3

)

∑

E

3

added

I

)

]

E

3

OUG

g

a

d

q2

q1+q2+q3

]

2q+1

3

q

[Ah]

q-1+q-2

q-1+q-2+q-3

Q

[

h]

Q

∑

f

I

∑

(n) indi

f

Power Facto

∑

P

/S

∑

]

(P

∑

)

(

λ

a

.

t

f

Q

t

Item

S

g

Voltage (V)

t

C

t

A

)

A

S

R

)

Q

λ

Ph

)

Ø

F

)

fU (

y

A freq

all el

Maxi

(V)

U+pk: Maxi

I+pk: Maxi

(W)

Cres

g

r

App

)

t

)

,

a

m

S

Inp

e

)

C

t

• Di

t

•

Inp

V

e

Fl

d

C

t

d

M

ge

1

)

C

t

•

:

(

)

5

p

(

)

5

)

• E

5

)

Instrume

loss

Vol

e

I

M

1

Current

• Di

:

H

App

μH

• E

M

1

I

Voltage

r

Current

•

r

•

hichever is lower

•

ge

I

)

Voltage

r

Current

•

r

•

hich

r

•

ge

C

t

Voltage

s

C

t

•

,

r

•

cheve

er

• E

C

)

000 Vrms

I

ge

h

sh

•

1

L

S

Freq

r

S

z

r

n

Resolutio

C

.

R

t

s

Rang

p

•

ge

•

)

Rang

W

.

•

r

)

•

)

y

py

m

S

Display

y

T

s

e

S

.

(

i

)

(

5

p

Specifications

Product Features Functions/Displays Applications Software Comparisons Explanations Specifications

nputs

Ite

ut terminal typeVoltag

ut type

easurement rangeVolta

nt

nstantaneous maximum allowable input (20 ms or less)

nstantaneous maximum allowable input (1 second or less

ontinuous maximum allowable inpu

ontinuous maximum common mode voltage (50/60 Hz

nﬂ uence from common volta

ine ﬁ lter

uency ﬁ lte

A/ D converte

ange switchingA range can be set for each input elemen

Auto range function

pecification

Plug-in terminal (safety terminal

urren

rect input: Large binding pos

External current sensor input: Insulated BNC connector

oltag

oating input, resistive potential metho

urren

Floating input, shunt inpu t metho

.5 V, 3 V, 6 V, 10 V, 15 V, 30 V, 60 V, 100 V, 150 V, 30 0 V, 600 V, 1000 V (for crest f actor 3

0.75 V, 1. 5 V, 3 V, 5 V, 7.5 V, 15 V, 30 V, 50 V, 75 V, 150 V, 300 V, 5 00 V (for crest factor 6)

urren

Direct input

50 A input element

1 A, 2 A, 5 A, 10 A, 20 A, 50 A

00 mA, 1 A, 2.5 A, 5 A, 10 A, 25 A (for crest factor 6)

ut element

5 A in

10 mA, 20 mA, 50 mA, 100 mA, 200 mA, 500 mA, 1 A, 2 A, 5A

mA,10 mA, 25 mA, 50 mA, 100 mA, 250 mA, 500 mA, 1 A, 2.5 A (for crest factor 6

xternal current sensor input:

0 mV, 100 mV, 200 mV, 500 mV, 1 V, 2 V, 5 V, 10 V (for crest factor 3

25 mV, 50 mV, 100 mV, 250 mV, 500 mV, 1 V, 2.5 V, 5 V (for crest factor 6

tag

nput resistance :Approx. 2

Input capacitance : Approx. 10 pF

rect input 50 A input element: A pproximately 2 m1 + approximately 0.07 μ 5 A input element:

xternal current sensor input: Approximately 1

Peak voltage of 4 kV or RMS of 2 kV, whichever is lowe

Direct input (50 A input element): Peak current of 450 A or RMS of 300 A,

whichever is lowe

Direct input ( 5 A input element): Pea k current of 30 A or RMS of 15 A,

w

External current sensor input: Peak current is less than 10 times the ran

Peak voltage of 3 kV or RMS of 1.5 kV, whichever is lowe

Direct input (50 A input element): Peak current of 150 A or RMS of 55 A,

whichever is lowe

Direct input ( 5 A input element): Peak current of 10 A or RMS of 7 A,

w

ever is lowe

External current sensor input: Peak current is less than 10 times the ran

Peak voltage of 2 kV or RMS of 1.1 kV, whichever is lower If the frequency of the input volt age exceeds 100 kHz, (1200-f) Vrms or les The letter f indicates the frequency of the input voltage and the unit is kHz.

urren

Direct input ( 50 A input element): Peak current of 150 A or RMS of 55 A

whichever is lowe

Direct input (5 A input element): Peak current of 10 A or RMS of 7 A,

whi

r is low

xternal current sensor input: Peak current is less than 5 times the range

1

Apply 1000 Vrms for input terminal and c ase with the voltage input terminals shorted, t

e current input terminals open, and the external current sensor input terminals

orted.

50/60 Hz: ±0.01% of range or less

Reference value up to 100 kHz: ±{ (maximum r ated range ) / (rated range) × 0.00 × f% of range} or less. For external current sensor input, add max. rated range / rated r ange × {0.0125 × log (f × 1000)-0.021}% of range. However, 0.01% or more. The unit of f is kHz. The maximum rated range within the equation is 1000 V or 50 A or 5 A or 10 V.

elect OFF, 100 Hz to 100 kHz ( in increments o f 100 Hz), 30 0 kHz, or 1 MHz elect OFF, 100 H z, or 1 kH

Simultaneous voltage and current input conver sio

n: 16-bit

onversion speed (sampling period):

Approximately 500 ns. See harmonic measuremen t items for harmonic measurement

e u

When the measured values of Urms and Irms exceed 110% of the ran

When the peak value of the input signal exceed s approximately 3 30% of the range (or approximately 660% for cr est factor 6

e down

hen the following conditions are met, the range setting switches down

When the measured values of U RMS and I RMS fall to 30% or less of the range

When the measured values of U RMS and I RMS fall to 105% or less of the lowe range (range to which the range set ting switches down

When the measured values of Upk and Ipk fall to 300% or less of the lower range (600% or less for crest f actor 6

roximately 100 m + approximately 0.07

for crest factor 3

isplay Items

Calculation Functions

easurement Function

Voltage U∑ [V] (U1+U2)/2(U1+U2+U3)/3

∑

nt I

ve power P ∑

pparent Power S

Reactive Power

var

ntegrated Power WP

Integrated Power (Positive

ntegrated Power (Negative

-∑[Wh

Integrated Current q ∑[Ah]q1+ Integrated Current (Positive)

q+[Ah Integrated Current (Negative)

-∑

Integrated reactive Power

∑

W

ntegrated apparent Power

WS ∑ [VAh]

Phase angle Ø ∑ [° Note 1) The ins trument’s apparent po wer (S), reactive power (Q), power factor

(However, reactive power is calculated directly from sampled data when T YPE3 is selected.) Therefore,

Note 2) The value of Q for each phase in th e Q ∑ calculation is calculated with a preceding minus sign (-) when

Numerical Display

Measurement functions obtained for each input elemen

urrent (A ) Urms: True RMS value, Imn: Rectiﬁ ed mean value calibrated to the RMS value,

ctive power (W

pparent power (VA )

eactive power (var

Power factor

ase angle (°

requency (Hz

Maximum and minimum current values ( A)

Maximum and minimum p ower values

t factorCfU: Volta

Corrected power (W)Pc

Integration Time: Integration time

∑

r Pc ∑ [W] Pc1+P

[Wh]

var

r

re calculated using measured values of voltage, current, and active power.

when distorted waveforms are input, these values may be different from those of other measuring instrument s based on different measuring principals

he current input leads the volt age input, and a plus sign when it lags the voltage input, so the value o

∑may be negative.

mum and minimum voltage values

ingle-phase

(I1+I2)/2(I1+I2+I3)

S

YPE

When WPTYPE is set to CHARGE/DISCHARG WP+1+WP+ When WPT YPE is set to SOLD/B OUGHT

Whenever data is updated, only the positive value of active power WP ∑is

When WPTYPE is set to CHARGE/DISCHARG

-

When WPT YPE is set to SOLD/B Whenever data is updated, only the ne

dde

q+1+q+

∑(n) indicates the

number o

S number o

∑

COS

ymbol and Meanin

Urms: True RMS value, Umn: Rectiﬁ ed mean value calibrated to the RMS value, Udc: Simple mean value, Urmn: Rect iﬁ ed mean value, Uac: AC componen

Idc: Simple mean value, Irmn: Rectiﬁ ed mean value, Iac : AC componen

FreqU): Voltage frequency, ﬂ (Freql): Current frequenc

Three fU and fI of all elements included can be measured simultaneously.

uency measurement option allows you to simultaneously measure all fU and fIof

ements.

Unselected signals are displayed wi th “………” indicating no data .

mum voltage value, U-pk: Minimum voltage value

mum current value, I-pk: Minimum current value

P+pk: Maximum power value, P-pk: Minimum power value

e crest fac tor, CfI : Current cres t facto

licable st andards

IEC76-1 (1976), IEC76 -1 (199 3

WP: Sum of the amount of both positive and negative power WP+: Sum of positive P (amount of power consumed WP-: Sum of negative P (amount of power returned to the grid q: Sum of the amount of both positive and negative curren q+: Sum of positive I (amount of current q-: Sum of negative I (amount of current WS: Amount of apparent power WQ: Amount of reactive power However, the amount of current is integrated by selecting any one of Irms,Imn,Idc,Iac

nd Irmn depending on the setting of the current mode.

3-phase

-

unction of the nth reactive power, N indicates the

data updates, and the unit of Time is h

cates the∑function of the nth apparent power, N indicates the

data updates, and the unit of Time is h

/S∑

3-phase 3-wire

3-voltage 3-curren

measurement)

1+Pc2+P

WP+1+WP+2+WP+

HT

ative value of active power W P∑ is

WP-1+WP-2+WP-

+q+2+q+

), and phase difference (Ø )

-phas

4-wir

Displa

Ite

Display update rat

*U

pecification

otal number of pixels*1024 (horizontal) × 768 (vertical) dot

to approximately 0.002% of the pixels on the LCD may be defective.

8.4-inch color TF T LCD displa

ame as the dat a update rate

1) The display update interval of numeric display alone is 200 ms to 500 ms which varies depending on the number of display items) when the data update rate

s 50 ms, 100 ms, and 200 ms.

2

The display update interval of display items other than numeric display

including custom displays) is approximately 1 second when the data update rate is

0 ms, 200 ms , and 500 ms.

15

SpecificationsSpecifications

Measurement function

(

(∑for each connected unit (

functio

n) o

btained fo

)

(

∑

,

∑

,

∑

C)

)

Item

S

g

Voltage (V)

U

∑

t

C

)

Irms

I

t

A

(VA)

S

∑

R

)

Q

∑

Power factor

C

)

Pc

∑

)

I

n

Time

WP

∑

:

r

∑

)

W

)

q

t

q

)

q

)

W

∑

W

∑

M

t

m

S

g

Vol

(V)

U

k

,

U

e

*

)

C

)

I

,

I: C

Acti

(W)

P (k)

)

S

)

R

)

Q (k)

,

Q

)

Power factor

λ

:

)

P

Ø

e

Ø

)

Ø

)

I

(

)

Z (k)

R

)

Rs (k)

,

s

,

s

Rp (k)

l

H

U

I

P

T

U

I

P

T

r

U

T

U

r

H

r

*

hvf

r

Harmonic curre

facto

*4

h

K-f

r

R

e

sq

g

a

o

.

M

a

T

Item

g

P

)

Ø

Ph

)

Ø

Ph

)

Ø

)

P

)

Ø

2

)

Ph

)

Ø

EaU

)

P

i

N

Measurement function (

(∑function) obtained for each connected unit (

)

(

∑A,∑B,∑

C)

)

Item

S

g

Voltage (V)

U

∑

(1)

U

∑

:

)

C

∑

I

∑

Acti

(W)

P

∑

(1)

P

∑

: T

)

S

(1)

S

∑

)

R

)

Q

∑

Q

∑

)

Powe

or

∑

(1)

∑

:

)

c

b

.

Item

g

S

g

Voltage (V)

e

Δ

U

b

n

3P3W->3V3A

U

c

S

Δ

U

Δ

b

Δ

U

(

Δ

U

Δ

U

Δ

U3)

S

A

Δ

U

Δ

d

f

m

Δ

U

∑

(

Δ

U

Δ

U

Δ

)

C

)

difference

Δ

ffere

ed

by

n

3

A

Δ

S

A

I: Neutral line curre

P

)

e

3P3

3A

U1, U2,

U

by

c

m

∑

3

S

A

Item

Sp

W

T

y

g

m

B

.

V

d

A

y

Item

C

s

Temp

P

(

λ

)

F

Vol

F

y

A

±

C

±

)

0

z

±(

)

z

±

5 H

Hz

±(

)

±(

)

z

±

)

50

kHz

±(

)

±{(

}

500

±

}

Freq

l)

Curre

F

y

A

±

C

±

)

0

z

±(

)

z

±

5 H

f

66 Hz

±

)

±(

)

kHz

±(

)

±

50

kHz

±

)

00

}

f

}

500 kHz

t

}

500

t

}

F

t

Specifications

A

ymbol and Meanin

rms ∑ : True RMS va lue, Umn ∑: Rectiﬁ ed mean value calibrated to the RMS value, Udc

urrent (A

Active power (W)

pparent power eactive power (var

orrected power (W

ntegratio

Harmonic Measurement (Option)

easurement function obtained for each input elemen

Ite

tage

urrent (A

ve power

Apparent power (VA

eactive power (var

hase angle (°)Ø (k) : Phase angle between the harmonic voltage and curr ent of order k,

mpedance of the load circuit

esistance and reactance of the load circuit (

armonic content [%]Uhdf (k): Ratio of the harmonic voltage U ( k) to U (1) or

otal harmonic distortion [%]

elephone harmonic facto

elephone inﬂ uence factor

armonic voltage facto

acto

*1: Order k is an inte

DC current compo nent (dc). The upper limit value for the measured order is automatically determined up t the 500th order depending on the frequency of the PLL source

*2: The t otal value is ca lculated by obt aining the fundamental wave (the 1st order ) and all harmonic

c omponents ( from the 2nd order to the upper limit value for the mea sured order). Also, t he DC component (dc) can be added to the equation

*3: Th e total har monic is calcula ted by obtaining the total harmonic component (from the 2nd order to the upper

limit value for the measured order)

*4: The equations may vary depending on the deﬁ nitions in the standards, etc. Check the standards for details.

easurement function indicating the phase difference of the fundamental wave between the voltage

nd current between input elements

his is a measurement function indica ting the phase angle of the fundamental wave U (1) or I (1) of another element to the fundamental wave U(1) of the element with the smallest number among input elements assigned to the conne cted unit. T he following table shows measurement functions for the connected unit with a combination of the elements 1, 2, and 3.

hase angle U1-U2 (°

ase angle U1-U3 (°

ase angle U1-I1 (°

hase angle U2-I2 (°

ase angle U3-I3 (°

1 to EaU6 (°), EaI1 to EaI6 (°

: Simple mean value, Urmn: Rectiﬁ ed mean va lue, Uac ∑: AC componen

∑: True RMS value, Imn∑ : Rectiﬁ ed mean value calibrated to the RMS value,

dc ∑ : Simple mean value, Irmn∑ : Recti ﬁ ed mean value, Iac ∑ : AC componen

∑

Applicable standards IEC76-1 (1976), IEC76 -1 (199 3

∑: Integr ation time

Sum of the amount of both positive and negative powe

: Sum of positive P (amount of power consumed

P-∑ : Sum of negative P (amount of power returned to the grid ∑: Sum of the amount of both positive and negative curren +∑ : Sum of positive I (amount of current

- ∑ : Sum of negative I (amount of current

S∑ : Integration of S

Q ∑: Integration of Q

ymbol and Meanin

(k): RMS value of the harmonic voltage of order

: Voltage RMS value (Tot al va lu

(k): RMS value of the harmonic current of order k

urrent RMS value (Total value)

: Active power of the harmonic of order k, P: Active power (Tot al va lue

(k): Apparent power of the harmonic of order k, : Total apparent power (Total value

: Reactive power of the harmonic of order k

: Total reactive power (Total value (k): Power factor of the harmonic of order k,

Tot al po wer fa ctor (Tot al va lue

: Total phase a ngl U (k): Phase angle of each harmonic voltage U (k) relative to the fundamental wave U (1 I (k) : Phase angle of each harmonic current I ( k) relative to the f undamental wave I (1

: Impedance of the load circuit for the harmonic of order k

: Resistance of the load circuit to the harmonic of order k when the resistance R

the inductance L, and the cap acitor C are connected in serie

Xs (k): Reactance of the load circuit t o the harmonic of order k when the resistance R

the inductance L, and the capacitor C are connected in serie

: Resistance of the load circuit to the harmonic of order k when the resistance R,

the inductance L, and the capacitor C are connected in paralle

Xp (k): Reactance of the load circuit to the harmonic of order k when the resistance R,

the inductance L, and the capacitor C are conne cted in paralle

hdf (k): Ratio of the harmonic current I (k) to I (1) or

hdf (k): Ratio of the active harmonic power P (k) to P (1) or

thd: Ratio of the total harmonic*3voltage to U (1) or

thd: Ratio of the total harmonic current to I (1) or

thd: Ratio of the total harmonic active power to P (1) or P

thf: Voltage telephone harmonic factor, Ithf: Current telephone harmonic factor

Applicable standard: IEC34-1 (1996)

tif: Voltage telephone inﬂ uence factor, Itif: Current telephone inﬂ uence facto

Applicable standard: IEEE Std 100 (19 96)

4

: harmonic voltage facto

nt

r

cf: harmonic current factor atio of the sum of the squares of weighted harmonic components to the sum of th

uares of the orders of harmonic current

er in the range from 0 to the upper limit value for the measured order. The 0th order is

Symbol and Meanin

U1-U2: Phase angle of the fundamental wave (U2 (1)) of the voltage of the element

2 to the fundamental wave (U1 (1) ) of the voltage of the element 1

U1-U3: Phase angle of the fundamental wave (U3 (1)) of the voltage of the element

3 to U1 (1)

U1-I1: Phase angle of the fundamental wave ( I1 (1)) of the current of the element 1

to U1 (1

U2-I2: Phase angle of the fundamental wave (I2 (1)) of the current of the element

to U2 (1

U3-I3: Phase angle of the fundamental wave (I3 (1)) of the current of the element 3

to U3 (1)

hase angle Ø of the fundamental waves of U1 to I6 based on the rise of the Z terminal

nput in the motor evaluation function (option).

is the set value f or the number of poles in the motor evaluation function.

2

B

urrent (A)

ve power

Apparent power (VA

eactive power (var

r fact

*1: The tot al value is calculated by obt aining the fundamental wave (the 1st order ) and all harmoni c omponents ( from the 2nd order to the upper limit value for the mea sured order). Also, t he DC component (dc )

e added to the equation

can

Delta Calculation (Option)

*1

urrent (A

ower (W

Waveform/Trend

aveform display Displays the waveforms of the voltage and current from elements 1 through 6, torque,

rend displa

Bar Graph/Vector (Option)

Ite

ar graph display Displays the size of each harmonic in a bar graph

ector display Displays the vector of the phase difference in the fundamental waves of voltage an

ymbol and Meanin

: RMS of the harmonic voltage of order 1,

(1): RMS of the harmonic current of order 1,

: Harmonic active power of order 1,

∑

: Harmonic apparent power of order 1,

(1): Harmonic reactive power of order 1,

: Harmonic power factor of order 1,

Delta Calculation Settin

differenc

TAR

DELTA->

TAR-> DELT

P3W->3V3

DELTA->

TAR

TAR-> DELT

differenc

W->3V

DELTA->STAR

TAR-> DELT

ecification

speed, AUX1, and AUX2. Displays trends in numer ical data of the measurement functions in a sequential line

raph.

Number of measurement channels: Up to 16 parameters

Specification

current.

ymbol and Meanin

1: Differential voltage betwee n u1 and u2 determined

y computatio

1: Line voltage that is not measured but can be

omputed for a three-phase, three-wire system

1,

y a three-phase, three-wire (3V3A) system

∑ =

1,

or a three-phase, four-wire syste

=

I1: Di computatio

I: Phase current that is not measured I: Neutral line current

omputation for a three-phase, three-line (3V3A) syste

=

RMS of the voltage (Tot al va lue

: RMS of the current (Total value)

otal active power (Total value

: Total apparent power (Tot al va lue

: Total reactive power (Total value

Tot al po wer fa ctor (Tot al va lue

U2,ΔU3: Pha se voltage that can b e computed

1 +

U2,ΔU3: Line voltage that can be compute

1 + ntial current between i1 and i2 determin

2 +

/3

U3

2 +

/3

nt

3: Phase power determined

P

ccurac

Voltage and Current

Accuracy (six-month)

Specification

ondition

erature: 23 ±5°C, Humidity: 30 to 75% RH, Input waveform: Sine wave, ower factor requency ﬁ lter: 1 kHz or less when ON, after warm-up.

After zero level compensation or range value changed while wired. The unit of f within the accuracy equation is kHz.

requenc

D

.1 Hz

10 Hz) f < 45 H 4 66 Hz < f 1 kHz < f

kHz < f

100 k Hz < f) 500 kHz

requenc

D

.1 Hz

10 Hz) f < 45 H 4 66 Hz < f

1 kHz < f

kHz < f 100

1

200 kHz < f

requency bandwidth 5 MHz (-3 dB, typical) 5 A input elemen

: 1, Common mode vol tage: 0 V, Crest factor: 3, Line ﬁ lter: OF

tage

f < 10 H

z

f66

50 kH

100

kHz < f

uency bandwidth5 MHz (-3 dB, typica

nt

f < 10 H

z

1 kHz

50

kHz < f 200 kHz±{(0.00725 × f - 0.125)% of reading + 0.5 % of range

kHz < f

ccuracy (Measurement reading error + Setting range error)

(0.05% of reading + 0.1% of range

0.1% of reading + 0.2% of r ange

(0.1% of reading + 0.1% of range)

0.1% of reading + 0.05% of range

0.1% of reading + 0.1% of range

(0.3% of reading + 0.1% of range

0.6% of reading + 0.2% of r ange

0.006 × f)% of reading + 0.5% of range

{(0.022 × f - 8)% of reading + 1% of range

ccuracy (Measurement reading error + Setting range error)

(0.05% of reading + 0.1% of range

0.1% of reading + 0.2% of r ange (0.1% of reading + 0.1% of range) (0.1% of reading + 0.05 % of range

0.1% of reading + 0.1% of range)

Direct input of the 50 A input element ±( 0.2% of reading + 0.1% of range

0.3% of reading + 0.1% of range

50 mV, 100 mV, 200 mV rang e of the external current sensor input

(0.5% of reading + 0.1% of range)

Direct input of t he 50 A input element ±{( 0.1 × f + 0.2) % of reading + 0.1% of range}

(0.6% of reading + 0.2 % of range

Direct input of t he 50 A input element ±{( 0.1 × f + 0.2) % of reading + 0.1% of range}

Direct input of t he 50 A input element ±{( 0.05 ×

Direct input of the 5 A input elemen ±{(0.00725 × f - 0.125)% of reading + 0.5% of range

Direct input of the 5 A input elemen ±{(0.022 × f - 8)% of reading + 1% of range

External current sensor input of the 50 A input elemen

+ 5)% of reading + 0.5 % of range

16

SpecificationsSpecifications

em

Sp

A

h)

Cond

s

S

F

y

)

C

)

0

z

H

)

< f

kHz

}

f

z

p

{(

}

{(

}

500

f

.

(

f

A

e

A

)

Voltage i

3

(15/range) + 0.5}% of range

ge

3

(1/range) }% of range + 10 mA

3

(10 m/ra nge) + 0.5 }% of range

3

(0.01/range ) + 0.5}% of range

3

(0.05/range) + 0.5} % of range

A

.

C

D

C

DC

ﬂ

t

U

% of

U

2

U

2

ge

A

g

A

.

g

.

t

.

e

A

t

A

accuracies between 0

eference values.

.

eference values

.

em

Sp

n

I

(

)

λ

= 0

A

)

%

P

[(P

×

λ

I

t

U

3

{1/(1 + (f/fc)

4

P

U

3

{1/(1 + (f/fc)

ff f

g

t

U

g

U

g

L

)

Th

i

.

• S

e

•

• F

kHz

•

Sy

∑

calculatio

g

g.

T

C

e

Udc and Idc: 0 to ±110% of the mea

Urms and Irms: 1 to 110% of the measurement range

U

Power

%

ge i

.

H

f

freq

.

M

e

g

e

.

•

)

B

.

C

.

y

M

D

s

M

z

A

S

V

y

A

Q

Accuracy of apparent power + ( (1.0004 -

λ

2

) - (1 -

λ

2

)

A

±

λ λ

n

λ

=

e

m

.

A

Ø

±

=

m

O

y

M

5

s

Item

S

n

Cres

3

lid i

)

3

)

.

•

l

•

y

1

3

)

f

i

.

S

g

m

0.0001 to 99999.9999.

A

g

•

S

Q.

•

g.

ge

Moving

S

.

• Harmonic measureme

O

.

D

e

.

e

A

)

d

SingleE

ld.

C

g

.

•

e

• AUX1 and AUX2

Item

Sp

n

f

and

M

d

Reci

d

50 ms

1

200 ms

500 ms

1 s

2 s

5 s

1

20 s

2

12.5

500

5 H

2

1.25

z

0.5 H

0.15

z

A

y

±

z

g

.

•

y

•

Display

n

99999

z

,

Item

Sp

n

Mod

S

(

Specifications

Product Features Functions/Displays Applications Software Comparisons Explanations Specifications

Power

It

ccuracy (six-mont

ollowing value to the above accuracy for the external current sensor range

• Add the Current DC accuracy: 50 μV Power DC accuracy:

• Add the

ollowing value to the above accuracy for the direct cur rent input range.

50 A input element

Current DC accuracy: 1 m Power DC accuracy: (1 mA/Direct current input range rating ) × 100% of range

5 A input element

Current DC accuracy: 10 μA Power DC accuracy: (10 μA/Direct current input range rating ) × 100% of rang

• Accura cy of the waveform display data, Upk and Ipk

dd the following value to the above accuracy (reference value). The eff ective input r ange is within ±3 00% of

range (within ±6 00% for crest factor 6

nput: {1.5 ×

Direct curren t input ran

50 A input element ; 3 × 5 A input element: {10 ×

External current sensor input range

50 mV to 20 0 mV range: {10 × 500 mV to 10 V range: {10 ×

• Inﬂ uence from a temperature change after zero level compensation or range change

dd the following value to the above accuracy

Voltage DC accuracy; 0.02% of range/°C DC accuracy of the direct current input

50 A input element: 1 mA/° 5 A input element: 10 μA/°C

C accuracy of the external current sensor input: 50 μV/°

power accuracy: Inﬂ uence from the voltage × Inﬂ uence from the current

• In

uence from the self-heating caused by voltage inpu

• Add the foll owing value to the voltage and power accuracy.

AC input signal: 0.0000001 × DC input signal: 0.0000001 ×

U is the voltage reading (V). The inﬂ uence from the self-heating continues until the temperature of the input resistor decreases, even if the voltage input changes to a small value.

• Inﬂ uence from the self-heating caused by current input dd the following value to the current and power accuracy of the 50 A element.

AC input signal: 0.00006 × I2% of readin DC input signal: 0.00006 × I

dd the following value to the current and power accuracy of the 5 A element

AC input signal: 0.006 × I2% of readin

DC input signal: 0.006 × I% of reading + 0.004 × I I is the curren t reading (A ) The inﬂ uence from the self-heating continues until the tempera ture of the shunt resistor decreases, even if

he current input changes to a small value

• Addition to the accuracy according to the data update rat dd 0.1% of reading when the data update rate is 50 ms and 0.05% of reading when 100 ms.

• Range of guaranteed accuracy by frequency, voltage, and curren ll

If the voltage exceeds 750 V at 30 kHz to 100 k Hz, the voltage and power values are reference values If the current exceeds 20 A at DC, 10 Hz to 45 Hz, or 400 Hz to 100 kHz, the current and power ac curacies are r

• Accuracy f or crest fac tor 6: Same as the range accuracy o f crest fac tor 3 for twice the range

It

nﬂ uence of power factor

nﬂ uence of line ﬁ lterWhen the cutoff frequency (fc) is 10 0 Hz to 100 kH z

ead/lag phase detection (D ( LEAD)/G (LAG) of the phase angle

mbol s for the reactive power Q

emperature coefﬁ cient±0.03% of reading/°C at 5 to 18°C or 28 to 40°

ecification

ition

requenc

D

.1 Hz

f < 10 Hz±( 0.3% of re ading + 0.2% of r ange)

1

Hz

f < 45 H

z f66 Hz±(0.1% of reading + 0.05% of range

45 66 Hz < f

50

1 kHz

100 k H

50 kHz <

)

100 k Hz < f 200 kH z ±{ (0.0105 × f - 0.25) % of reading + 1% of range}

200 kHz < f )500 kHz±{(0.0105 × f - 0.25) % of reading + 1% of range}

kHz < f

50 μV/External current sensor range rating) × 100% of r ange

% of reading + 0.004 × I

.1 Hz and 10 Hz are r

.

ecificatio

When

pparent power reading × 0.1% for the range from 45 to 66 Hz

For frequencies other than the above (Reference values

5 A input element and external sensor inputs: Apparen t power reading × ( 0.1 + 0.05 × f (kHz)) Direct input of the 50 A input element: Apparen t power reading × ( 0.1 + 0.3 × f ( kHz))

When 0 << 1

ower reading × (Power range /Apparent power reading) + {tan Ø × (Inﬂ uence % when Ø is the phase a ngle betwee n the voltage and current .

Voltage/curren

p to (fc/2) Hz: Add 2 × [1 -

ower

p to (fc /2) Hz: A dd 4 × [1 -

When the cuto

Volta

p to (fc /10) Hz: Add ( 20 × f/fc) % of readin Power

p to (fc/10) Hz: Add (40 × f/ fc)% of readin

e phase lead and lag can be detected correctly when the voltage and current

nput signals are as follows

ine wav

50% or more of the measurement range (100% or more for crest factor 6)

requency: 20 Hz to 10

Phase angle: ±(5° to 175°)

The symbol s shows the lead /la

ame as the accuracy of the voltage and curren t

Accuracy ±(R eading error + Measurement range error

±(0.05% of reading + 0.1% of range

±(0.1% of reading + 0.2 % of range)

±(0.2% of reading + 0.1% of range) ±(0.3% of reading + 0.2 % of range)

50 mV, 100 mV, 200 mV range of the external current sensor input ±( 0.5% of reading + 0.2 % of range) Direct input of the 50 A input element ±{(0.1 × f + 0.2)% of reading + 0.2% of r ange

±(0.7% of reading + 0.3 % of range)

ut of the 50 A input element

Direct in ±

0.3 × f - 9.5)% of reading + 0.3% of r ange

Direct input of the 50 A input element ±

0.09 × f + 11)% of reading + 1% of range

1 MHz±{(0.048 × f - 20) % of reading + 2% of range}

reading

% of reading + 0.0000001 ×

ower reading error %) + (Power range error %)

requency (fc) is 300 kHz and 1 MHz

e/curren

n

% of ran

% of readin

}] × 100 + ( 20 × f/300 k) % of reading

}] × 100 + (4 0 × f/300 k )% of reading

of each element, and “-” indicates leadin

= 0)}]

Effective input rang

mn and Imn: 10 to 110% of the measurement range rmn and Irmn : 10 t o 110% of the measurement range

DC measurement: 0 to ±110 AC measurement: ±110% of the power range when the voltage and current

owever, the synchr onization source level s hall meet the inpu t signal level o

ax. display valu

Min. display valu

Measurement lo wer limit frequenc

ccuracy of apparent power

ccuracy of reactive power

ccuracy of power factor

ccuracy of pha se angle

ne-year accurac

140% of the voltage and current r ange ratin Displays the following values relative t o the measurement ra nge

Urms, Uac, Irms, Iac: Up to 0.3% (up to 0.6% for crest factor 6) Umn, Urmn, Imn, Irmn: Up to 2 % (up to 4% for cres t factor 6 elow that, zero suppress urrent integration value q also depends on the current value

Data update rate: 50 ms 100 ms 20 0 ms 500 ms

easurement lower limit frequency: 45 Hz 25 Hz 12.5 Hz 5 Hz

ata update rate : 1 s 2 s 5 s 10 s 20

easurement lower limit frequenc y: 2.5 Hz 1.25 Hz 0.5 Hz 0.2 H z 0.1 H

oltage accuracy + Current accurac

[(

easurement range. Ø is the phase difference of voltage and curren t

[| Ø – {cos-1 ( /1.0002)| + sin-1{(inﬂ uence of power factor of power when

easurement range. ultiply the reading error of the six-month accuracy by a factor of 1.

ran

uency measurement. Each of the lower limits is doubled for crest factor 6

/1.0002) +|cosØ -cos {Ø+ si

0%/100 )}|] ±1 digit when voltage a nd current is at rated input of th

0%)/100}] deg ±1 digit, when voltage and current is a t the rated input of the

s 1 to 110%

-

(inﬂ uence of power factor of power when

) × 100 % of range

nction

Measurement Functions and Conditions

t factor

Measurement periodInterval for determining the measurement function a nd performing calculations

Wiring

calin

veragin

ata update rat Response tim Hol

Zero level compensation/Null

Frequency Measurement

Number of measurement Select up to three frequencies of the voltage or current input to t he input elements

easurement metho

Measurement rangeData update rate Measuring range

ccurac

resolutio Min. frequency resolution0.0001 H Frequency measurement ﬁ lter

Integration

e Select a mode from Manual, Standard, Continuous (repeat), Real Time C ontrol

pecificatio

00 (relative to the minimum va or 6 (when inputting the rated values of the measurement range

The measurement period is set by the zer o crossing of the reference signa

(synchronization source) excluding watt hour WP and ampere hour q during DC mode

Harmonic displa The measurement period is from the beginning of the data update interval to 1024 or 8192 points at the harmonic sampling frequency.

P2W (single-phase, tw o-wire) , 1P3W (single-phase, 3-wire) , 3P3W (3-phase,

-wire), 3P4W (3-phase, 4-wire), 3P3W (3V3A) (3-phase, 3-wire, 3-volt/3-amp measurement However, the number of available wiring systems varies depending on the number o

nstalled input elements

When inputting output from external current sensors, VT, or CT, set the current sensor conversion ratio, VT ratio, CT ratio, and power coefﬁ cient in the range f ro

The average calculations below are per formed on the normal measurement par ameters of voltage U, curren t I, power P, ap parent power Power factor

Select exponential or moving averagin Exponential avera Select an at tenuation constant from 2 through 64.

Select 50 ms, 100 m s, 200 ms, 500 ms, 1 s, 2 s, 5 s, 10 s, or 20 s

t maximum, tw ice the data up date rate (only during numerical display

Holds the data display.

xecutes a single measurement during measurement ho

ompensates the zero level. Null compensation range: ±10% of range

Null can be set indi vidually for each o f the followin

Voltage and current of each input element

Rotation speed and torqu

ecificatio

or measurement. If the frequency option is installed, the frequencies of the voltages

00 ms

0 s

0.06% of reading ±0.1 mH When the input signal level is 30 % or more of the measur ement range (60% or more for crest factor 6). However: The input si

The frequency is smaller or equal to 2 times of above lower frequenc 10 mA range set ting of 5 A input element

1 A range setting of 50 A input element The 100 Hz frequency ﬁ lter is ON at 0.15 Hz to 100 Hz, and the 1 kHz frequency ﬁ lter is ON at 100 Hz to 1 kHz.

Select OFF

ecificatio

tandard, and Real Time Control Continuous (Repeat).

and phase angle are determine d by calculating the average of P and S.

average

elect the number of averages from 8 through 64

nly exponential averaging is available

currents being input to all input elements can be measured.

procal metho

nal is 50% or more of the range

100 Hz or 1 kHz

nput

, and reactive power

nt

input signals

45 Hz

f

1 MHz

5 Hz

)

Hz

z

.5 Hz

Hz

0.25 Hz Hz

kHz

f

200 kHz

100 k Hz

50 kH

z

f

20 kHz

10 kH z

)

5 kH

17

SpecificationsSpecifications

I

Integra tion can be stopp

10000h00m00

C

r

If

/

,

:

q

: ±999999 MAh

MVAh

Q

:

h

A

y

Ti

g

)

em

Sp

M

All i

M

d

P

F

PLL

.

,

PLL

.

FFT d

h

s

Window functio

R

r

S

r

FFT

)

U

r

F

y

S

easured values

600 Hz

f*10241500th orde

der

2

r

600 Hz

f*256

100

der

H

.

FFT

)

U

r

F

e

Wind

h

U, I, P, Ø, ØU, Ø

s

0.5 H

Hz

f*81921500th orde

der

2

5

r

f

5

r

600 Hz

48500th orde

der

16

2

r

600 Hz

f*25632100

der

m

S

A

.

W

F

y

V

e

C

0.5

0

g

+

ge

0

g

0

g

+

ge

45 H

0

g

0

g

+

ge

6

0

g

+

e

440

z

0

g

+

ge

kHz

0

g

0

g

1

g

+

ge

e

0

1

e

ge

2

ge

ON

e

facto

3

1

.

V

ge

C

μA

e

eleme

C

(

ge

/

(

o

.

g

f

.

g)

f

.

e

.

Item

Sp

n

l

p

App

M

I

C

Item

Sp

n

ge

1 V,

e

±110%

er

z

t

e

±

k

S

A

n

1

y

±

p

±

C

S

of

encoder for electric angle mea surement.

g

Item

S

n

e

±

F

2 H

MHz

Maxi

ge

±

k

y

±

z

e

Withi

etectio

L l

App

e

Auxiliary

t

)

Item

S

n

l

A

2

Inp

ype

Analog

A

1

ype

C

Range

5

V

ge

±

e ﬁ

er

OFF/100

z

t

C

e

±

S

A

n

1

t

A

y

±

)

•

n

p

C

l

m

S

n

esolutio

t

ge

±

e

S

t

2

)

y

±

V

oad

100 k

C

e

±

em

Sp

n

Sig

EXT STOP

,

T

,

I

USY

D

,

I

l

V

n

em

Sp

n

User-de

on

f

.

s

f

.

Specifications

ntegration timer

ount ove

ccurac

mer accuracy ± 0.02% of readin

Harmonic Measurement

It

easured source etho

requency range

source • Select the voltage or current of each inpu t element or the external clock

ata lengt

Anti-aliasing ﬁ l t e r

Sample rate, window width, and upper limit of the measured order

Ite

ccuracyAdd the following accuracy to the normal measurement accuracy

n

1024

undamental frequenc 15 Hz to 600 Hz to 1200 Hz f*512 1200 Hz to 2

owever, the maximum measured order is 100 at a date update rate of 50 ms

8192

undamental frequency Sampling rat

1.5 Hz to 5Hzf*4096 5 Hz to 10 Hz 10 Hz to 600 Hz to 1200 Hz f*512 1200 Hz to 2

the integration time reaches the maximum integration time (10000 hours ), or if the integr ation value reaches max the elapsed time and integration value is saved and the operation is stopped.

*

WS: ±999999 W ±( Normal measurement accuracy + 0.02% of reading)

LL synchronization method (without external sampling clock function)

undamental frequency of the PLL source is in the range of 0.5 Hz to 2.6 kHz.

• If the /G6 option is selected, two PLL sources can be selected, and dual harmonic measurement can be performed. If the /G5 option is selected one

• Input level 15 V or more of range for voltage input. 50 mA or mor e of range for direct current input 200 mV or more of range for external current sensor input 50% or mo re of the measurement range rating for crest factor 3. 100% or more of the measurement range rating for crest factor 6 20 Hz to 1 kHz for the 1 A or 2 A range of the 50 A input element.

• The frequency ﬁ l t e r ON condition is the same as with frequency measurement 1024 when the data update rate is 50 ms, 100 ms, or 200 ms

8192 when the data update rate is 500 m, 1 s, 2 s, 5 s, 10 s, or 20

ectangula

et using a line ﬁ lte

points (data update rate 50 ms, 100 ms, 20 0 ms

points (data update rate 500 m, 1 s, 2 s, 5 s, 10 s, 20 s

z to 1.5

pecification

hen the line ﬁ lter is OFF

requenc

Hz f < 10 Hz

10 Hz

f < 45 Hz

z f 66 Hz

6 Hz < f)440 Hz

Hz < f 1 kH

1 kHz < f

10

10 kHz < f100 kHz0.5% of rang 100 kHz < f

• When the line ﬁ l ter is Add the accuracy of the line ﬁ lter to the accuracy of when the line ﬁ lter is OFF

s

min display integration value

±999999 MWh

±999999 Mvar

(Option

ecification

nstalled elements

source is selectable

ampling rateWindow widthU, I, P, Ø, ØU, ØI orother m

*2048

f*102

oltag .05% of reading

+ 0.25% of range

.05% of readin

+ 0.25% of range

.05% of readin

+ 0.25% of range

.05% of reading

+ 0.25% of range

.05% of reading

+ 0.25% of range

.5% of readin

+ 0.25% of range

260 kHz 1% of ran

pper limit of measured orde

55th order 100th orde

pper limit of measured orde

ow widt

00th order 100th orde 00th order 100th orde

55th order 100th orde

urrent Power .05% of reading

+ 0.25% of range

.05% of readin

+ 0.25% of range

.05% of readin

+ 0.25% of range

.05% of readin

+ 0.25% of range

.05% of readin

+ 0.25% of range

.5% of readin

+ 0.25% of range

.5% of range

1% of ra n

th or

r100th or

100th or

I or other measured value

r100th or

100th or

*1

0.1% of readin

0.5% of ra n

0.1% of readin

0.5% of ra n

0.1% of readin

0.5% of ra n

0.1% of readin

0.5% of rang

0.1% of readin

0.5% of ra n

% of readin

0.5% of ra n

% of rang

% of ran

Motor Evaluation Function

Input termina In

ut resistance

nput connector type Insulated BN

Analog Input ( Speed is input to the A terminal)

Ran Input rang Line ﬁ l t Continuous maximum allowable inpu Maximum co mmon mode volt ag

ampling rate Resolutio Accurac Tem

erature coef ﬁ cient

Pulse Input

peed is input to the A ter minal if the direction is not detected. If the direction is detected, the A and B phases

the rotary encoder are input to the A and B te rminals. The Z phase is input to the Z terminal of the rotary

Input rang

requency measurement range

mum common mode volta Accurac Rise of the Z terminal input and elec tric angle measurement star t tim

D

n level H level: Approximately 2 V or more

Pulse width 500 ns or mor Harmonic measurement option (/G5 or /G6) is required for electric angle meas urement.

Inpu

Input termina

ut t Input resistance Input connector t

Input ran Lin

lt

Continuous maximum allowable inpu

ommon mode voltag ampling rate

Resolutio

ccurac

Tem

erature coefﬁ cient±0.03% of range/°

Insulated BN

or range change.

ecificatio

Torque, speed ( A, B, Z)

roximately 1

ecificatio

2 V, 5 V, 10 V, 20 V

OFF, 100, 1 kH

42 Vpea

pproximately 200 kS /s

6-bit

(0.05% of reading + 0.05 % of range)

0.03% of range/°

(Option

pecificatio

UX1/AUX

pproximately 1 M

0 m, 100 m, 200 m, 500 m, 1 V, 2 V, 5 V, 10 V, 20

110 %

Hz/1 kH

42 V pproximately 200 kS /s 6-bi

(0.05% of reading + 0.05 % of range Add 20 μV /°C to the change in temperatur e after zero level compensat io

A Output and Remote Contro

DA Output

Ite

D/A conversion r Output volta Update rate Outpu Accurac Minimum l Temperature coef ﬁ cient±0.05% of FS /°C

ontinuous maximum common mode voltag

Remote Control

It

nal

nput leve

pecificatio

n16-bi

5 V FS (max. approximately ±7.5 V) relative to each rated va lu ame as the data update rate 0 channels (Output par ameter can be set for each channel

(Accuracy of each measurement function +0.1% of FS) FS=5

42 Vpeak or less

ecificatio

EXT START, 0 to 5

(Option)

pecificatio

12 Vp eak

z to 1

42 Vpea

(0.05 + f/500 )% of reading ±1 mH

n 500 ns

evel:

roximately 0.8 V or less

(Option)

EXT RESE

NTEG B

,EXT HOL

EXT SINGLE, EXT PRINT

All the items below apply to any of t he tables.

n the crest

• Wh

• When (power factor) =

• Power ﬁ gures that exceed 2.6 kHz are reference values

• For the vol tage range, add the follow ing values. Voltage accuracy: 25 m Power accuracy: (25 mV/voltage range rating) × 100% of r an

• For the direc t current input r ange, add the following values. 5 A element

urrent accuracy: 50 Power accur acy: (5 0 μA/current range rating ) × 100% of rang 50 A

nt

urrent accuracy: 4 mA

Power accuracy:

• For the external current sensor range, add the following values. Current accuracy: 2 mV Power accuracy: (2 mV

n/500)% of reading to the n-th component of the voltage and curren t, and add (n/250)% of reading t

• Add the n-th component of the power

• Accuracy when the crest factor is 6: Same as when the range is doubled for crest factor 3

uaranteed accuracy range by frequency and voltage/cur rent is the same a s the guaranteed range o

• The normal measurement

• The adjacent orders of the input order may be affected by the side rope

• For n-th order component input when the PLL source frequency is 2 Hz or more, add ({ n/(m+1)}/50)% of (the n-th order readin

(the n-th order reading) to the (n+m)th order and (n-m)th order of the power

o

18

• For n-th order component input when the PLL source frequency is less than 2 Hz, add ({n/(m+1)}/20)% of (th n-th order reading) to the (n+m )th order and (n-m)th order of the voltage and curr ent, and add ({n/(m+1)}/10 )% of (the n-th order reading) to the (n +m)th order and (n-m)th order of the power

r is set to

4 mA /current range rating) × 100% of r an

external current sensor range rating) × 100% of range

to the (n+m)th order and (n-m)th order of the voltage and current, and add ({n/(m+1)}/25)%

Calculation and Event Functio

It

ﬁ ned functi

Efﬁ ciency calculationUp to 4 efﬁ ciencies can be dis played by set ting measurement parameter

User-deﬁ ned event Event: Set conditions for measured values

ecificatio

Compute th e numerical dat a (up to 20 equations) with a combination o measurement function symbols and operators

or the efﬁ ciency equations.

The funct ions triggered by the event are A uto Print, Store, and DA Output.

SpecificationsSpecifications

Comp

Item

s

N

s

+

S

U

r

C

s

0

C

E

SO

)

ModeAdd

Address

0 to 30

e

R

(

)

Item

s

1

RJ

ﬁ

Conforms to

3

T

d

E

C

l

TCP/IP

Applicabl

s

F

Item

Sp

1

C

T

p

C

A

HS

Applicabl

ls

U

)

A

t

T

V

.

USB for Peripheral Devices

p

Item

Sp

2

U

)

Conforms to US

0

A

HS

LS (

)

A

s

M

1

M

5

t

Item

S

Therma

od

D

y

8

m

A

d

v

G

s

Item

S

W

e

App

t

T

H

)

000

less

n

I

s

S

t

Temp

C

Humidi

)

100 to

C

A

ge

9

C

y

5

z

A

e

48 to 63 H

Maxi

1

D

)

A

(W)

(H)

(D) (Excluding the handl

WeightA

)

B

p

b

.

y

m

S

n

l

digi

N

m

S

n

t

Peak

g

S

e

App

S/s

Ti

is

T

r

•

e

E

• Tri

de

S

during i

•

e

S

clock

•

e

S

•

l

S

The se

esolutio

%.

•

T

e

s

.

m

S

n

Store

S

)

S

)

N

measureme

channels

N

m

l)

S

3 ch550 ms

5 days

h

s

5

3 ch

E

C

a

50 ms

4 hours

6 ch

5

1 sec

h201

s

E

C

,

and

4

s

E

C

,

and

s

4

s

*O

ion

m

S

n

Save

S

d

Read

O

Item

S

n

C

e

I/O leve

TTL: Applicabl

e

M

e

r

Withi

Applicabl

e

Common

Item

S

n

C

e

r

Inp

l

L

W

t

em

Sp

n

F

ge

I

S

W

m

S

n

F

e

z

I

gg

m

S

n

h

1 μs

Trigg

Within (

)

em

Sp

n

C

e

D

)

O

t

A

t

Specifications

Product Features Functions/Displays Applications Software Comparisons Explanations Specifications

Displa

Numerical Display

Ite

Display digit (display resolution)

umber of display itemsSelect 4, 8, 16, Matrix, ALL, Harmonic Single List, Harmonic Dual List, and Custo

Waveform Display

Ite

Display forma

ampling rat

me ax

rigge

ime axis zoom f unctionNot availabl

* Waveforms can be represented faithfully at up to approximately 100 kHz because the sampling rate i approximately 2 MS/ s

Data Store Function

Ite

tore interval 50 ms (when waveform display is OFF) to 99 hours 59 minutes 59 seconds

torage time when using 1 GB memory ( Numerical Store and Waveform Display OFF

umber of

nt

3 c

6 c 6 ch

6 ch

ne piece of dat a is 4 bytes, and the limit to the number of store operations is 9999999 counts.

File Funct

Ite

pecificatio

ess than 60000: 5

60000 or more: 4 digits

pecificatio

-to-peak compression data If the time axis is set so tha t there will be insuf ﬁ cient samplin lacking data is ﬁ lled with the preceding sampling data.

roximately 2 M

Range from 0.05 ms to 2 s/div. However, 1/10 or less of the data update rate.

Trigger typ

gger mo

Trigger sourc

Trigger slop Trigger Leve

TTL level if the trigger source is Ext Clk (external clo ck).

pecificatio

tore numerical data in media. ( Media: USB storag e device, max . 1 GB

umber of

easurement items (each channe

20 50 m

ach harmo nic component data of D

to the 100th order of voltage, current,

nd power

ach harmonic component data of D

to the 100th order of voltage, current

power

ach harmonic component data of D

to the 100th order of voltage, current

power

pecificatio

ave sett ing informatio n, waveform display d ata, numerical data, and scr een image ata to media

Read the saved setting information from media.

ts

data, the part

dge type elect OFF, Auto, and N ormal. Automatica lly turned OFF

ntegration.

elect voltage or current input to the inpu t element or external

elect Rise, Fall, or Rise/Fall

et the trigger level in the range of ±100% from the center of the screen (from top to bottom of the screen) if the trigger source is the voltage or current input to the input element.

t r

n is 0.1

torage interval Storable time (Approx.)

6 hours

sec 24 day

1 sec

100 m

86 days

0 hour

9 minute

Auxiliary I/

I/O Section for Master/Slave Synchronization Signals

onnector typ

l

easurement start delay tim

External Clock Input

onnector typ

ut leve

hen a synchronization source for normal measurement is used as the external clock for inpu

It

requency ran

nput waveform

hen a PLL source for harmonic measurement is used as the external clock for input

Ite

requency rang

nput waveform Square waveform with a duty ratio of 50%

er

Tri

Ite

Minimum pulse widt

er delay time

RGB Output (Option)

It

onnector typ

utput forma

pecificatio

BNC connector: Applicable to both master and salv

Within 15 sample intervals: Applica ble to maste

BNC connecto TT

Same as the measurement range of frequency measurement.

Harmonic measurement (/G5 or /G6) option: 0.5 Hz to 2.6 kH

e to both master and slav

n 1 μs + 15 sample intervals:

pecificatio

ecificatio

quare waveform with a duty ratio of 50%

pecificatio

1 μs + 15 sample intervals

ecificatio

-sub 15- pin (receptacle

nalog RGB outpu

e to slav

uter Interface

GP-IB Interface

Compatible device

Electrical and mechanical speciﬁ cations

Functional speciﬁ cation Protocol

ncoding

Clearing remote mod

Ethernet Interface

Number of communication port

Connector type Electrical and mechanical speci

ransmission metho

ommunication protoco

e service

USB PC Interface

Number of ports

onnector

Electrical and mechanical s

pplicable transfer st andards

e protoco

pplicable system environmen

Number of ports Connector type Electrical and mechanical speciﬁ cations

pplicable transfer standards

pplicable device

Power supply

lt-in Printer

Printing method

ot densit Paper width 80 m Effective recording width

uto Print A llows you to set t he interval time for printing to automatically print the measure

Specification

ational Instrument

• PCI-GPIB or PCI-GPIB

• PCIe-GPIB or PCIe-GPIB

• PCMCIA-GPIB and PCMCIA-GPIB+

• GPIB-USB-H se an NI-488.2M Version 1.60 or later drive

onforms to the IEE Standard 488-1978 (JIS C 190 1-198 7)

SH1, AH1, T6, L4, SR1, RL1, PP0, DC1, DT1, C

onforms to the IEEE Standard 488.2-1992

(ASCII

ressable mode

emote mode can be cleared by pressing the LOCAL key

except during Local Lockout

Specification

-45 connector cations

the IEEE802.

thernet 1000BA SE-T, 100 BAS E-T X, 10B ASE-T

TP server, DHCP, D NS, remote co ntrol ( VXI-11), SNTP, FTP client

ecification

ype B connector (receptacle)

eciﬁ cations

onforms to the USB Rev. 2.0

(High Speed) mode (480 Mbps ), FS (Full Speed) mode (12 Mbps)

SBTMC-USB488 (USB Test and Measurement Class Ver.1.0

he PC must run the J apanese or English version of Windows 7 (32-bit) , ista (32-bit), or XP (SP2 or later, 32-bit), and be equipped with a USB port

ecification

SB type A connector (receptacle

B Revision 2.

(High Speed) mode (480 Mbps ), FS (Full Speed) mode (12 Mbps),

Low Speed) mode (1.5 Mbp s

ass storage device conforming to USB Mass Storage Class Version 1.

09 and 104 keyboards conforming to USB HID Class Version 1.

ouse conforming to USB HID Class Version 1.1

V, 500 mA (for each port). However, devices that exceed the maximum curren

consumption of 100 mA canno t be connecte d to two ports simultaneously.

(Option)

pecification

l line dot meth

dots/m

2 mm

alues. The start/stop time can also be set.

eneral Speciﬁ cation

arm-up tim

Operation environmen

Operating altitude 2 Installation locatio

torage environmen

Rated power supply voltage

llowable power supply voltage ﬂ uctuation ran

Rated power supply frequenc

llowable power supply frequency ﬂ uctuation rang

mum power consumption

imensions (see s ection 12.13

attery backu

roximately 30 minutes

emperature : 5 to 40°C

umidity: 20 to 80%RH (no condensation

m or

ndoor

erature: -25 to 60°

ty: 20 to 80%RH (no condensation

240 VA

0 to 264 VA

0/60 H

50 VA (wh en using a built-in print er)

pproximately 426 mm

other projections when the printer is stored in the cover)

pproximately 15 kg (including the main body, 6 input elements, and options

Setting informati on and built-in clock co ntinue to opera te with a lithium backup

attery

pecification

z

×177 mm

×459 mm

e and

19

g

-01 50 A

-10 5 A

WT1801

-02 50 A 50 A

WT1802 -11 5 A 50 A

-20 5 A 5 A

-03 50 A 50 A 50 A

-12 5 A 50 A 50 A

-21 5 A 5 A 50 A

WT1803

-30 5 A 5 A 5 A

-04 50 A 50 A 50 A 50 A

-13 5 A 50 A 50 A 50 A

WT1804 -22 5 A 5 A 50 A 50 A

-31 5 A 5 A 5 A 50 A

-40 5 A 5 A 5 A 5 A

-05 50 A 50 A 50 A 50 A 50 A

-14 5 A 50 A 50 A 50 A 50 A

-23 5 A 5 A 50 A 50 A 50 A

-32 5 A 5 A 5 A 50 A 50 A

WT1805

-41 5 A 5 A 5 A 5 A 50 A

-50 5 A 5 A 5 A 5 A 5 A

-06 50 A 50 A 50 A 50 A 50 A 50 A

-15 5 A 50 A 50 A 50 A 50 A 50 A

-24 5 A 5 A 50 A 50 A 50 A 50 A

WT1806 -33 5 A 5 A 5 A 50 A 50 A 50 A

-42 5 A 5 A 5 A 5 A 50 A 50 A

-51 5 A 5 A 5 A 5 A 5 A 50 A

-60 5 A 5 A 5 A 5 A 5 A 5 A

-D UL/CSA standard

-F VDE standard

Power cord -R AS standard

-Q BS standard

-H GB standard

Languages -HE English menu

gg g

/EX1 External current sensor input for WT1801

p

/EX2 External current sensor input for WT1802

p

/EX3 External current sensor input for WT1803

p

/EX4 External current sensor input for WT1804

p

/EX5 External current sensor input for WT1805

p

/EX6 External current sensor input for WT1806

p

/B5 Built-in printer

p

Options /G5 Harmonic Measurement

/G6 Simltaneous Dual Harmonic Measurement

/DT Delta Computation

p

/FQ Add-on Frequency Measurement

qy

/V1 RGB output

p

/DA 20-channel DA Outputs

p

/MTR Motor Evaluation Function

/AUX Auxiliary Sensor Inputs

yp

ModelProduct

D

751535-E

Rack

kit

For EIA

751535-J

t

g

S

r

Product

D

O

y

589

ead set

s

1

58922

p

R

1

8929

L

lli

R

ir

8923

S

(

8931

(

set

d

C

r

B

r

366924 *

B

e

366925 *

BNC

cable

2 m1

959

S

p

H

1

58921

Fork

B

1

B9284LK

External sensor cable

C

1

B

FX

Pri

Th

ll)

10

*

Select one

Typical Voltage/Current Connections

Measurement using current sensor

Connection example

Unit whose current is to be measured

CT1000

(B8200JQ)

* A burden resistor is required for the CT1000, CT200, CT60, and 751574.

g

Model and Suffix Codes

Model Suffix codes Description

Connector

Four load resistors*

(B8200JR)

connected inparallel

DC power supply (±15 V, 1 A)

WT1800 Single input element

Power meter’s current input terminals

WT1800 2 input elements

WT1800 3 input elements

WT1800 4 input elements

WT1800 5 input elements

Measurement using clamp-on probe

Unit whose voltage is to be measured

751552

Current output type

758917

Current measurement using direct input terminal

Unit whose voltage is to be measured

758923

758931

g

Model/parts numbe

Due to the nature of this product, it is possible to touch its metal parts. Therefore, there is a risk of electric shock, so the product must be used with caution. * Use these products with low-voltage circuits (42 V or less).

g

Power meter’s current direct input terminal

758921

Power meter’s voltage input terminal

758921

Accessory (sold separately)

7

17 Test r 7 75 75

75

7 701 758924

9316

Small alligator-cli

arge a

gator-clip

afety terminal adapter

Safety terminal adapter

terminal adapter afety mini-cli onversion adapte NC-BNC cabl

-BNC

nter roll pager

Rack Mount

4 4 Rack mounting ki

mounting

Measurement using voltage input terminal

Unit whose current is to be measured

701959

758921

758922

758929

A set of 0.8 m long, red and black test lead

ated at 300 V and used in a pair

ated at 1000 V and used in a pa spring-hold type) Two adapters to a set screw-fastened type) Two adapters to a

1.5 mm hex Wrench is attache anana-fork adapter, Two adapters to a set ook type, Two in a set NC-banana-jack (female) adapte

urrent sensor input connector, Length 0.5 m

ermal paper, 10 meters (1 ro

For JI

758917

758923

758931

escription

Power meter’s voltage input terminal

rder Q’t

WT1800 6 input elements

Standard option

Additional option

* The numbers in the "Description" column have the following meanings. 50 A: 50 A input element, 5 A: 5 A input element Elements are inserted in the order shown starting on the left side on the back. * GPIB, Ethernet and USB communication come standard.

Note: Adding input elements after initial product delivery will require rework at the factory. Please

choose your models and configurations carefully, and inquire with your sales representative if you have any questions

Standard accessories Power cord, Rubber feet, current input protective cover, User’s manual, expanded user’s manual,

communication interface user’s manual, printer roll paper (provided only with /B5), connector (provided only with /DA) Safety terminal adapter 758931 (provided two adapters in a set times input element number)

CT1000 AC/DC Current sensor

Current: 1000 Apk Basic Accuracy: ±(0.05% of rdg + 30 μA) Measurement Range: DC to 300 kHz Input/output ratio: 1500: 1

751574 Current transducer

Current: 600 Apk Basic Accuracy: ±(0.05% of rdg + 40 μA) Measurement Range: DC to 100 kHz Input/output ratio: 1500: 1

CT200 AC/DC Current sensor CT60 AC/DC Current sensor

Current: 200 Apk Basic Accuracy: ±(0.05% of rdg + 30 μA) Measurement Range: DC to 500 kHz Input/output ratio: 1000: 1

g

Exterior WT1800

13 426 13

Current: 60 Apk Basic Accuracy: ±(0.05% of rdg + 30 μA) Measurement Range: DC to 800 kHz Input/output ratio: 600: 1

32 427 43

17720

unit: mm

32

Yokogawa's Approach to Preserving the Global Environment

O Yokogawa's electrical products are developed and produced in facilities that

have received ISO14001 approval.

O In order to protect the global environment, Yokogawa's electrical products are

designed in accordance with Yokogawa's Environmentally Friendly Product Design Guidelines and Product Design Assessment Criteria.

YOKOGAWA METERS & INSTRUMENTS CORPORATION

Global Sales Dept.

/Phone: +81-42-534-1413 Facsimile: +81-42-534-1426

E-mail: tm@cs.jp.yokogawa.com

YOKOGAWA CORPORATION OF AMERICA Phone: (1)-770-253-7000, Fax: (1)-770-254-0928 YOKOGAWA EUROPE B.V. Phone: (31)-88-4641000, Fax: (31)-88-4641111 YOKOGAWA ENGINEERING ASIA PTE. LTD. Phone: (65)-62419933, Fax: (65)-62412606

NOTICE

O Before operating the product, read the user's manual thoroughly for proper

and safe operation.

O If this product is for use with a system requiring safeguards that directly involve personnel safety, please contact the Yokogawa sales offices.

Subject to change without notice.

Printed in Japan, 102(KP)

Atec WT1800 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual