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3 year warranty

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The Exciter PT/CT Board IS200EPCTG1A from the EX2100 series is an input/output terminal board that isolates transformers for current measurements along with critical generator voltages. When operating the input burdens for the PT and CT are less than 1 VA.



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  • Part Number: IS200EPCTG1A
  • Manufacturer: GE Industrial Systems
  • Series: EX2100 Excitation Control

IS200EPCTG1A Technical Specifications

Board Description Exciter PT/CT Board
Board Type Input/Output Terminal Board
Function Receives PT and CT Feedbacks
Functional Acronym/Abbreviation EPCT
PT/CT Input Burdens Less than 1 VA
Quantity of Terminal Blocks 3

Product Description

The IS200EPCTG1A model is part of the EX2100 series. This model is specifically designed to receive and condition generator current transformer and potential transformer feedback. The input voltages that are used in regard to the PT voltage are two three-phase generators. For the CT current inputs, the current levels of 1 A-5 A come from two generators. When it comes to the type of board the IS200EPCTG1A is, it is an input/output terminal board. 

The analog input of the IS200EPCTG1A model will be anywhere from 0-10 V or 4-20 mA. When connecting the CT and the EPCT the wire gage that is connected can be up to #10 AWG, and the cable length can be up to 1000 feet. Any of the currents and generator voltage from the CTs and PTs are wired through to the EPCT board. When the currents and voltages are wired through to the EPCT, the IS200EPCTG1A board will act as a signal conditioner that will scale and isolate the signals that have been sent through the CTs and PTs. 

This model has very low market availability at this time but can still be found, especially here at AX Control where we try to keep several on the shelves. 

Frequently Asked Questions about IS200EPCTG1A

The IS200EPCTG1A board receives many different inputs, what levels from the CT currents inputs does the IS200EPCTG1A board accept?

The two levels from the generator CT current inputs are either 1A or 5A. The signals received will also be interfaced to the EMIO board. 

Does the IS200EPCTG1A have noise suppression?

Yes! The high-frequency noise suppression is accepted near the point of signal entry. 

What is the voltage measurement for a three-wire open delta on the IS200EPCTG1A model?

The voltage measurement for a three-wire open delta will yield 1.533 VRMs for a 115 VRMs input. 

When operating as a redundant system how many EPCT boards are allowed?

Generally, the EPCT boards are not needed within a redundant system but if they are required up to three EPCT boards can be configured. 

Reviews For IS200EPCTG1A

Internal Review

This module is best used to control the CT and PT inputs from generator voltages and currents. Information on this board can be found in the attached GEH-6632 manual on page forty-nine. - AX Control Technician

Repair Services For IS200EPCTG1A

Type Lead Time Price Action
Repair Service 1-2 weeks $895

Our highly skilled technicians can repair your IS200EPCTG1A. All of our repairs come with a 3 Year AX Control Warranty. Please contact us for additional information about our repair process. To receive the repair pricing and lead time listed above please process your repair order via our website. The following repair options may be available upon request:

  • 48-72hr Rush Repair
  • Detailed Repair Reports
  • AX Control Certificate of Warranty

AX Control Warranty Info

All products we sell are backed by our unparalleled warranty. A warranty certificate will be provided with your order upon request.
All PLCs, HMIs, and Turbine Control Boards: 3 Years
All AC/DC and Servo Drives: 2 Years
All Motors: 1 Year
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