SystemCORP VT/CT Interface Board2018-10-29T15:25:28+08:00

SystemCORP VT/CT Interface Board

Sampled values in IEC 61850 are normally derived from secondary Voltage Transformer (VT) and Current Transformer (CT) circuits in a substation.

The Intel Smart Grid IoT Platform provides high precision analogue inputs catering for a maximum peak-to-peak voltage of 1.25V.

AC measurements in a substation are typically 110V for voltage measurements and 5A for current measurement provided by secondary VTs and CTs.

The SystemCORP VT/CT Interface Board provides isolated and safe VT and CT interface channels for the Smart Grid IoT Platform allowing a direct connection of the development platform to secondary VT and CT circuits in a substation or any protection relay testing equipment simulating VT and CT circuits.

If required each channel can be individually calibrated over a range of 40% using multi-turn trim potentiometers.

 

Application

Interface the Intel Smart Grid IoT Platform to primary VT/CT circuit in a substation or to any protection relay test system.  

 

Typical System Setup

Features

  • 4 x isolated AC Voltage Input Channels 110V
  • 4 x isolated AC Current Input Channels 5A (1 Amp CT interface on request)
  • VT/CT input channels surge protection according to IEC 61850-3
  • VT/CT Accuracy Class 1 (1%)
  • Individual hardware calibration option for each VT and CT channel
  • Touch proofed design of VT and CT inputs
  • Standard SMA Type Connectivity to Intel Smart Grid IoT Platform

Technical Specifications

Maximum Input Voltage (RMS)
AC 110V
Maximum Input Current (RMS) AC 5A
Input Frequency
50Hz
60Hz
Output Voltage (Peak-Peak) -1.25V to +1.25V

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