CIRCUTOR PowerNet User Manual

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KW

P.F

KvarC

90º

Potencia

Consumida

POWER NET ENERGY MANAGE SYSTEM

Power Net is an analyzer that measures, calculates and gives to a Modbus
master or Power Studio the electrical variables of industrial networks (balanced
or unbalanced). The measure is TRMS using the 3 voltage inputs. The current is
measured by TC current transformers. The parameters are shown in the memory
map table.

This manual is a quick guide to the use and operation of NET POWER. For more
information, you can download the full manual on the website of CIRCUTOR:
www.circutor.com

Before performing any maintenance, modification, connection,
repair, etc., disconnect the device from the power supply. When
you suspect a malfunction of equipment or protection thereof
shall be immediately put out of service.

POWER NET

3 CONNECTION

As a device that remains permanently connected in an installation, should be
provided with magneto-thermal switch or equivalent to be disconnected. Should
be fitted with fuses GL (IEC 296) or type M of 0.5 ... 2 A.
The section of power cables and measure the equipment must not be less than

1.5 mm ².
Power Net must be installed at the point where you want to measure ensuring
that this point meets the insulation requirements, guaranteeing minimum
electrical safety transformer. Similarly, the characteristics of the measuring point,
meet the specifications of the equipment.

Balanced single-phase system

1 POWER NET FUNCTION

To view and store the values measured by one or more measurement devices
Power Net network must be connected to software management and acquisition
of data through a bus RS-485 (maximum 32 devices).
Through the Power Power Studio or Scada application software is possible to
configure the device to communicate with the application which will visualize the
values measured by the device, perform graphic and stored historical view.
To communicate Net Power with the management application should check the
communications wiring and equipment installation.

If you use the instrument is not specified by the manufacturer, the
protection of equipment and the user, may be involved.

2 VARIABLES

Parameter Inst Máx Mín
Voltage Phase-neutral V X X X
Voltage phase-phase V X X X
Frequency (Hz) X X X
Phase Current and average A X X
Voltage harmonic distortion THD V X X
Current harmonic distortion THD I X X
Phase Active Power and three-phase kW X X
Inductive Power kvarC X X
Capacitive Power kvarL X X
Phase Apparent Power and three-phase kVA X X
Power Factor P.F X X X
Active Energy Kw·h X
Capacitive Energy kvarC·h X
Inductive Energy kvarL·h X

POWER NET measures in two quadrants. The user does not have to worry
about the direction of the current transformer. The device changes internally
current direction so that they always measured consumed energy.

Single-phase system: 1 Power Net

Unbalanced three-phase system

Unbalanced three-phase system: 1 Power Net + 2 TC-Power Net

4 TC POWER NET DSIMENSIONS

TC-Power Net
WG-35 100 79 26 48,5 35 0,150

WG-70 130 110 32 66 70 0,240

A B C D

Dimensions (mm)

E∅

Weight (Kg)

180º

-90º

Potencia

Generada

0º

KW

P.F

POWER NET stores in memory the maximum and minimum values without
supply.

M98146001-03-11C

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5 TECHNICAL FEATURES

Measured current

WG-35 50 / 100 / 250 (A)
WG-70 500 / 1000 (A)

Electrical features

Maximum voltage 720 V c.a
Isolation voltage 3.000 V c.a

Supply

L1-L2 : 400 V c.a. AC
Voltaje tolerance -15 % / +10 %
Frequency 50…60 Hz
Consumption: 4,2 VA

Measure

Nominal voltage
Frequency 45…65 Hz

Nominal current (según transformador)
Permanent overload
Voltage circuit consumption 0,75 V·A
Mechanical and enviromental
Material Plastic V0 self-extinguishing
Protection IP 20
Dimensions (mm) 165 x 73 x 33
weight 0.220 kg
Work temperature -10º…50 º C
Altitude 2.000 m
Humidity (without condensation) : 5%...95%
Accuracy
Voltage 0.5 % ± 2 digit
Current 0.5 % ± 2 digit
Power 1 % ± 2 digit
Measure condition without current transformers and direct voltage
Temperature + 5 … + 45 ºC

Power Factor 0,5…1
Measure range to end scale 10...100 %
Safety

Category III - 300 V c.a. / 520 c.a. EN-61010 Electric shock protection by double
isolation class II
Standards
IEC 664, UL 94, VDE 0414 IEC 664, VDE 0110, UL 94, IEC 801, IEC 348, IEC 571­1, EN 61000-6-3, EN 61000-6-1, EN-61010-1

300 V c.a AC (f-n)
520 V c.a. AC (f-f)

1,2 In

6 COMMUNICATIONS

The MEMORY MAP table shows the memory map addresses of each variable
that measures and calculates the analyzer and it’s code.

6.1 PERIPHERAL NUMBER AND BAUDRATE

It’s possible through a Modbus command to configure the device. The memory
locations that are changed are in the next table:

Modbus address Modified variable Valid range
3000, 3001 Device serial number 0 a 999999999
3002H Peripheral number 1 a 255
3002L Speed (baud rate) 0= 9600, 1= 19200

The Modbus command to send is (hex.):

Tx: 00100BB8000306NNNNNNNNPPVVCRC
Rx:

There is no answer in broadcast frame.

This command sets the peripherals number and the baud rate of communications
for devices connected in the same network that have the default peripheral
number. The command is sent to the peripheral number 0 (broadcast) to interpret
all devices, but only make the change the device that matches the serial number
is sent as parameter. The peripheral number and communications port speed be
set immediately, without requiring a reset of the device.

6.2 RS-485 LAYOUT

The picture shows how to connect a communication bus between multiple Power
Net. The converter can be RS-485 to RS-232 serial port or Ethernet depending
on the facility infrastructure. The standard RS-485 connection allows a maximum
of up to 32 peripherals in each bus.

POWER NET

6.3 MEMORY MAP

VARIABLE SYMBOL COD INST MÁX MÍN UNITS

Phase voltage V 1 1 00-01 60-61 C0-C1 V x10
Current A 1 2 02-03 62-63 mA
Active Power Kw 1 3 04-05 64-65 W
Reactive Power Kvar 1 4 06-07 66-67 W
Power factor PF 1 5 08-09 68-69 C8-C9 x100
Phase voltage V 2 6 0A-0B 6A-6B CA-CB V x10
Current A 2 7 0C-0D 6C-6D mA
Active Power Kw 2 8 0E-0F 6E-6F W
Reactive Power Kvar 2 9 10-11 70-71 W
Power factor PF 2 10 12-13 72-73 D2-D3 x100
Phase voltage V 3 11 14-15 74-75 D4-D5 V x10
Current A 3 12 16-17 76-77 mA
Active Power Kw 3 13 18-19 78-79 W
Reactive Power Kvar 3 14 1A-1B 7A-7B W
Power factor PF 3 15 1C-1D 7C-7D DC-DD x100

Active Power III Kw III 16 1E-1F 7E-7F W
Inductive Power III KvarL III 17 20-21 80-81 W
Capacitive Power III KvarC III 18 22-23 82-83 W
Cos φ III Cos φ III 19 24-25 84-85 E4-E5 x100
Power factor III PFIII 20 26-27 86-87 E6-E7 x100

Frequency (L1) Hz 21 28-29 88-89 E8-E9 Hz x10
Line voltage L1-L2 V12 22 2A-2B 8A-8B EA-EB V x10
Line voltage L2-L3 V23 23 2C-2D 8C-8D EC-ED V x10
Line voltage L3-L1 V31 24 2E-2F 8E-8F EE-EF V x10

%THD V 1 %THDV1 25 30-31 90-91 % x 10
%THD V 2 %THDV2 26 32-33 92-93 % x 10
%THD V 3 %THDV3 27 34-35 94-95 % x 10
%THD I 1 %THDI1 28 36-37 96-97 % x 10
%THD I 2 %THDI2 29 38-39 98-99 % x 10
%THD I 3 %THDI3 30 3A-3B 9A-9B % x 10

Active Energy Kwh III 31 3C-3D Wh
Ind. Reactive Energy KvarhL III 32 3E-3F Wh
Cap. Reactive Energy KvarhC III 33 40-41 Wh
Apparent Power III KvaIII 34 42-43 A2-A3 W
Maximum Demand Md(Pd) 35 44-45 A4-A5 W/VA/mA
Average current I_AVG 36 46-47 A6-A7 mA
Neutral current In 37 mA
Maximum Demand I2 Md(Pd) 42 52-53 B2-B3 mA
Maximum Demand I3 Md(Pd) 43 54-55 B4-B5 mA

7 ASSITANCE SERVICE

In case of operational doubt or equipment breakdown, call CIRCUTOR’s
Customer Service.
CIRCUTOR, S.A. – Customer Service
Vial Sant Jordi, s/n
08232 -Viladecavalls (Barcelona)
National phone [phone]
International phone: [phone]
fax – ([phone]
E-mail : [e-mail]

CONEXION RS-485

M98146001-03-11C