3 Phase CT with inbuilt Power Meter

 

Description

The C-Tran is combined 3 phase multifunction AC Power transducer and 3 phase current transformer.
The C-Tran is fully programmable through either of the two communication ports

 

Application

The C-Tran can replace traditional multifunction meters and 3 separate current transformers with an all in one combined product with RS485 output

 

PDFRS485 Register

PARAMETERS MEASURED
  • Phase Voltage (V)
    Line Voltage (V)
    Phase Current (I)
    Frequency (Hz)
    Active Power Per Phase (W)
    System Active Power (W)
    Reactive Power Per Phase (VAr)
    System Reactive Power (VAr)
    Apparent Power Per Phase (VA)
    System Apparent Power (VA)
    Import Active Power (W.h)
    Import Reactive Power (VAr.h)
    Apparent Energy (VA.h)
    System Power Factor (P.F.)
    Amp Demand (Ad)
    Maximum Amp Demand (Max.Ad)
    Import Watt Demand (Wd)
    Maximum Watt Demand Import (Max.Wd)
    VA Demand (VAd)
    Maximum VA Demand (Max. VAd)
    Neutral Current
    Hours Run—Voltage based
ACCURACY

The accuracy of the C-Tran is Class 0.2 to IEC688 over the range 10% to 120% In, and for voltages from 100V to 120% of nominal input.
For Active and Reactive energy the accuracy is 1% of the reading to IEC 1036.
The accuracy of the current transformer is Class 1 for the range 10% to 120% of nominal input.

MEMORY

All data including energy registers, current and voltage ratios and calibrated data is stored in a non volatile eeprom.

 

CUMMUNICATION

Port 2:
The main communication port.
It uses the popular Modbus protocol to retrieve measurements and to change the transducers operating parameters. It enables the connection of a host computer, PLC, RTU, Data Logger etc.

Port 1:
This port has a fixed data format, It can also retrieve measurements and set the transducer operating parameters. Only the baud rate and endian format can be changed on this port.
Can connect with M850-LCM display with this port

 

PROGRAMMING

Setup and monitoring software is available from our website www.hobut.co.uk

INSTALLATION OPTIONS - OPTION 1

Multiple C-Trans can be connected to PC, PLC, RTU, Data Loggers and Scada System with RS485 (Modbus) without the need odf a display

INSTALLATION OPTIONS - OPTION 2

Multiple C-Trans with single display.
Up to 32 C-Trans can be linked together with one single display (Display Part No. M850-LCM)

INSTALLATION OPTIONS - OPTION 3

Multiple C-Trans with single display.
(As Option 2) with RS485 remote communication (Display Part No. M850-LCM)

C-TRAN RANGE

GENERAL SPECIFICATION
INPUT
Rated Un
Directly connected Voltages:
(3ph4W) 100V to 330V L-N Max
(3ph3W) 100V to 440V L-L Max
Rated In
Depand on CT primary (see options)
Range
10 to 120% In
Overload
Absolute maximum input: 4 x In
Frequency
50/60Hz Nominal range 45/65Hz

OPTIONS
3 Phase current available options:
60A, 100A, 125A, 150A, 160A, 200A & 250A

ACCURACY
Specified
@ 23 °C 100V –100%Un, 10%-100% In
Parameters unless stated
Class 0.2 to IEC688
Frequency
Class 0.1Hz to IEC688
Power Factor
Class 0.5 to IEC688
Active & Reactive Energy
1.0% of reading IEC1036
Current Transformer
Class 1 to IEC 60044-1

INSULATION
Test Voltage
4kV RMS 50Hz for 1 min
Voltage inputs to case 3kV RS485 to case and voltage Input (there is no isolation between Port 1 and Port 2)
Impulse Test
EMC 5kV transient complying With IEC 801.EN 55020 HF

APPLIED STANDARD
General
IEC 688, BSEN 60688, BS 4889, IEC 359, Immunity EN 61326-2
Safety
EN 61010—1

APPROVALS
UL, C-UL Pending

AUXILIARY
Self powered
maximum 440V
Burden
<10VA

ENVIRONMENTAL
Working Temperature
0 to +60 °C
Storage Temperature
-30 to +65 °C
Temperature Coefficient
0.01% per °C
DIMENSIONS (mm)

CONNECTION DIAGRAMS

Call us now on: +44 1922 640003

 

 

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