Tektronix TDS2PWR1, TPS2PWR1 Primary User

User Manual
TPS2PWR1 Power Analysis Application
071-1452-01
www.tektronix.com
Copyright © Tektronix, Inc. All rights reserved. Licensed software products are owned by Tektronix or its suppliers and are protected by United States copyright laws and international treaty provisions.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Specifications and price change privileges reserved.
Tektronix, Inc., P.O. Box 500, Beaverton, OR 97077
TEKTRONIX, TEK, and TEKPROBE are registered trademarks of Tektronix, Inc.
WARRANTY
TPS2PWR1 Application
Tektronix warrants that the product listed above will be free from defects in materials and workmanship for a period of one (1) year from the date of original purchase from an authorized Tektronix distributor. If any such product proves defective during this warranty period, Tektronix, at its option, either will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the defective product. Batteries are excluded from this warranty. Parts, modules and replacement products used by Tektronix for warranty work may be new or reconditioned to like new performance. All replaced parts, modules and products become the property of Tektronix.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for packaging and shipping the defective product to the service center designated by Tektronix, shipping charges prepaid and with a copy of Customer proof of purchase. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting from attempts by personnel other than Tektronix representatives to install, repair or service the product; b) to repair damage resulting from improper use or connection to incompatible equipment; c) to repair any damage or malfunction caused by the use of non--Tektronix supplies; or d) to service a product that has been modified or integrated with other products when the effect of such modification or integration increases the time or difficulty of servicing the product.
WARRANTY (Continued)
TPS2PWR1 Application
THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE PRODUCT IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

Table of Contents

General Safety Summary iii............................
Contacting Tektronix vii................................
Getting Started
Getting Started 1--1......................................
Basic Operation 1--2.....................................
Ratings 1--2............................................
Start Up 1--4...........................................
Checking Module Installation 1--8..........................
Troubleshooting Module Installation 1--9....................
Reference
Power Analysis 2--1.....................................
Waveform Analysis 2--9..................................
Phase Angles 2--15.......................................
Harmonics 2--21.........................................
Switching Loss 2--29......................................
dY/dt Measurements 2--41.................................
P5120 Specifications 2--43.................................
TPS2PWR1 Power Analysis User Manual
i

General Safety Summary

Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it.
To avoid potential hazards, use this product only as specified.
Only qualified personnel should perform service procedures.
To Avoid Fire or Personal Injury
Use Proper Power Cord. Use only the power cord specified for this
product and certified for the country of use.
Connect and Disconnect Properly. Do not connect or disconnect probes
or test leads while they are connected to a voltage source.
Connect and Disconnect Properly. Connect the probe output to the
measurement instrument before connecting the probe to the circuit under test. Disconnect the probe input and the probe reference lead from the circuit under test before disconnecting the probe from the measurement instrument.
Observe All Terminal Ratings. To avoid fire or shock hazard, observe all
ratings and markings on the product. Consult the product manual for further ratings information before making connections to the product.
Use Proper Probe. To avoid shock hazard, use a properly rated probe
for your measurement.
ii
TPS2PWR1 Power Analysis User Manual
General Safety Summary
Floating. Do not float the P2220 probe reference lead to > 30 V
Use the P5120 (floatable to 600 V
CAT II or 300 V
RMS
RMS
RMS
CAT
.
III) or similarly rated, passive, high voltage probe or an appropriately rated, high voltage differential probe when floating the reference lead above 30 V
, subject to the ratings of such high voltage
RMS
probe.
Powering Off. The power cord provides Mains disconnect.
Replace Batteries Properly. Replace batteries only with the proper type
and rating specified.
Recharge Batteries Properly. Recharge batteries for the recommended
charge cycle only.
Use Proper AC Adapter. Use only the AC adapter specified for this
product.
Do Not Operate Without Covers. Do not operate this product with
covers or panels removed.
Avoid Exposed Circuitry. Do not touch exposed connections and
components when power is present.
Do Not Operate With Suspected Failures. If you suspect there is damage
to this product, have it inspected by qualified service personnel.
Environment. Pollution Degree 2 (As defined in IEC61010--1:2001).
Do not operate in an environment where conductive pollutants may be present. See Appendix A of the TPS2000 Oscilloscope User Manual for Environmental characteristics.
Do Not Operate in Wet/Damp Conditions.
Do Not Operate in an Explosive Atmosphere.
Keep Product Surfaces Clean and Dry.
TPS2PWR1 Power Analysis User Manual
iii
General Safety Summary
Provide Proper Ventilation. Refer to the manual’s installation
instructions for details on installing the product so it has proper ventilation.
Avoid Electric Overload. To avoid injury or fire hazard, do not apply
potential to any input, including the reference inputs, that varies from ground by more than the maximum rating for that input.
Avoid Exposed Circuitry. Do not touch exposed connections and
components when power is present.
Avoid Electric Shock. To avoid injury or loss of life, do not connect or
disconnect probes or test leads while they are connected to a voltage source.
Keep Probe Surface Clean and Dry. To avoid electric shock and
erroneous readings, keep probe surface clean and dry.
Attached the Reference Leads Correctly. If you are using multiple
oscilloscope channels, you must attach the probe reference lead for each channel directly to the circuit common reference that you are measuring. These connections are required because the oscilloscope channels are electrically isolated. They do not share a common chassis connection. Use the shortest possible reference lead with each probe to maintain good signal fidelity.
If Question Marks are Displayed. If a measurement display is followed
by a question mark, or a question mark is displayed instead of a value, you have encountered an overrange condition or other error, the reading may be invalid, and hazardous voltages may be present. Readjust the vertical scale or position or press the front-panel AUTOSET button.
iv
TPS2PWR1 Power Analysis User Manual
General Safety Summary
Symbols and Terms
Terms in This Manual. These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that could result in injury or loss of life.
CAUTION. Caution statements identify conditions or practices that could result in damage to this product or other property.
Terms on the Product. These terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you read the marking.
WARNING indicates an injury hazard not immediately accessible as you read the marking.
CAUTION indicates a hazard to property including the product.
Symbols on the Product. These symbols may appear on the product:
CAUTION
Refer to Manual
Standby
TPS2PWR1 Power Analysis User Manual
Chassis Ground
v

Contacting Tektronix

Phone 1-800-833-9200*
Address Tektronix, Inc.
Department or name (if known) 14200 SW Karl Braun Drive P.O. Box 500 Beaverton, OR 97077 USA
Web site www.tektronix.com
Sales support
Service support
Technical support
* This phone number is toll free in North America. After office
hours, please leave a voice mail message. Outside North America, contact a Tektronix sales office or distributor; see the Tektronix web site for a list of offices.
vi
1-800-833-9200, select option 1*
1-800-833-9200, select option 2*
Email: techsupport@tektronix.com
1-800-833-9200, select option 3* 1-503-627-2400
6:00 a.m. -- 5:00 p.m. Pacific time
TPS2PWR1 Power Analysis User Manual
Getting Started

Getting Started

The TPS2PWR1 Power Analysis application software adds power measurements to a TPS2000 series oscilloscope.
Specific features include:
H Power Analysis -- Calculates the true power, reactive power,
power factor, and phase angle for a pair of voltage and current waveforms.
H Waveform Analysis -- Calculates the RMS value, crest factor, and
frequency for a waveform.
H Phase Angles -- Calculates the phase angle between each pair of
three voltage or current waveforms.
H Harmonics -- Calculates up to 50 harmonics and can display each
harmonic’s phase angle with respect to the fundamental frequency, its percent of the fundamental frequency, and the THD/TDD value for the entire waveform.
H Switching Loss -- Calculates the turn-on switching loss, turn-off
switching loss, conduction loss, and total switch loss for a pair of voltage and current waveforms.
H dV/dt and di/dt cursors -- Calculates dv/dt or di/dt between two
cursors on a waveform.
TPS2PWR1 Power Analysis User Manual
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Getting Started

Basic Operation

See the TPS2000 User Manual, the P2220 Instructions, and the P5120 Instructions for information on ratings and on basic operations, including safety, installation, functional checks, probe attenuation and scaling settings, and self calibration.

Ratings

TPS2000
The TPS2000 oscilloscopes are rated to 300 V CAT II signal to common (IEC 61010) and 600 V CAT II floating reference to earth ground reference.
P2220
The rating for the P2220 passive probe is:
1-2
X10 position: 300 V
X1 position: 150 V
CAT II probe tip to earth ground
RMS
CAT II probe tip to earth ground
RMS
The probe reference lead is rated to float 30 V max to earth ground.
P5120
The rating for the P5120 passive high voltage probe is:
1000 V
The probe reference lead is rated to float to 600 V
CAT II probe tip to earth ground.
RMS
RMS
CAT II to
earth ground.
TPS2PWR1 Power Analysis User Manual
Getting Started
Overvoltage categories
Overvoltage categories are defined as follows:
H CAT III: Distribution level mains, fixed installation
H CAT II: Local level mains, appliances, portable equipment
H CAT I: Signal level, special equipment or parts of equipment,
telecommunications, electronics
More complete product specifications are contained in the User Manual for the TPS2000 and for the various probes.
TPS2PWR1 Power Analysis User Manual
1-3
Getting Started

Start Up

To install a TPS2PWR1 application module on your TPS2000 series oscilloscope, follow these steps.
Observe ESD precautions.
To avoid damage to the oscilloscope or the application module, observe proper electrostatic discharge (ESD) precautions. Use an ESD strap.
Insert the application key.
While the oscilloscope is turned off, insert the power analysis applica­tion key in the indicated slot, below and to the right of the display. The key’s label should face up.
1-4
Power on the oscilloscope.
Wait until the display appears. Push the side-menu OK button to conti­nue.
ON/Standby
button
TPS2PWR1 Power Analysis User Manual
Getting Started
Probe
Voltage
PROBE COMP
CH 1
10X
CH 1 Probe
Voltage Current
Attenuation
10X
CH 1
Attach the probes to the oscilloscope and set up the probes.
Press the appropriate front-panel CH 1, CH 2, CH 3,orCH 4 Menu buttons and the appropriate Voltage or Current side menu selection and the Attenuation side menu selec­tion.
Compensate the voltage probes.
For a P5120 probe, connect the probe to channel 1 on the oscillo­scope. To do this, align the slot in the probe connector with the key on the CH 1 BNC, push to connect, and twist to the right to lock the probe in place.
Connect the probe tip and reference lead to the PROBE COMP termi­nals. Repeat this process for each probe.
TPS2PWR1 Power Analysis User Manual
Degauss current probes, if required.
1-5
Getting Started
For examples of probe connections to circuits, refer to the Application examples provided in the Reference section of this manual.
If you see a question mark on the screen, you might press the front­panel AUTOSET button or adjust the oscilloscope as described below.
To optimize the automated mea­surements in the Power Analysis, Waveform Analysis, and Phase Angles menus, adjust the oscillo­scope so that:
S the TPS2000 displays at least one complete cycle of the waveform
1-6
S the amplitude of each waveform is more than two divisions
S all waveform data points are on the screen
S each cycle occupies at least one horizontal division
TPS2PWR1 Power Analysis User Manual
Getting Started
Start the application.
Push the front-panel APPLICA­TION button to access the power
application functions. The power application menu will appear in the oscilloscope’s right-side menu. It will present the power measurement choices shown below.
Power applications Description
Power Analysis True power, reactive power, true power factor,
phase angles
Waveform Analysis Cyc RMS, crest factor, frequency
Phase Angles Phase angle, in degrees, between each of CH1,
CH2, and, for 4 channel models, CH3
Harmonics Fundamental RMS, Harmonics phase, frequency,
and RMS.
Switching Loss Turn-on, turn-off, conduction, and total loss
For further information on general set up of the oscilloscope, refer to the TPS2000 User Manual.
TPS2PWR1 Power Analysis User Manual
1-7
Getting Started

Checking Module Installation

Use the following table to check that an application module is installed. If the oscilloscope does not show the application module menu items, do the steps in Troubleshooting Module Installation on page 1--9.
To check this module
TPS2PWR1 APPLICATION A menu appears on the right-side of the
Push this front-panel button
Check for
screen with the title labelled: Power
1-8
TPS2PWR1 Power Analysis User Manual

Troubleshooting Module Installation

If the oscilloscope does not recognize the application module at power-up, perform these steps:
1. Turn off the oscilloscope.
2. Follow the ESD precautions shown previously.
3. Remove the application module.
4. Examine the application module contacts for damage.
5. Reinsert the application module into the oscilloscope.
6. Power on the oscilloscope. If the oscilloscope still does not show
the application menu item, you have a problem with the application module or the module slot. Contact the nearest Tektronix service center to resolve the problem.
Getting Started
TPS2PWR1 Power Analysis User Manual
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Getting Started
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TPS2PWR1 Power Analysis User Manual
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