GE IS200EACFG2ABB Exciter AC Feedback Board

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Long Description

IS200EACFG2ABB is an Exciter Ac Feedback board developed by GE. It is a part of EX2100 excitation system. It is responsible for monitoring and measuring key electrical parameters to ensure the proper functioning of the excitation system in power generation applications. Designed to measure the exciter PPT AC supply voltage and current within the EX2100 Excitation Control system. The board plays a crucial role in maintaining accurate feedback for system stability and efficiency.

Technical Details

Dimensions: 22.8×15.1×3.5 cm
Weight: 0.24 kg
Input Power: +5 VDC (typically from control system backplane)
Power Consumption: 2–3 W
Signal Processing: Processes and amplifies AC feedback signal from exciter
Operating Temperature: 0°C to 70°C (32°F to 158°F)
Storage Temperature: -40°C to 85°C (-40°F to 185°F)
Humidity: 5% to 95% non-condensing

Features
The board contains transformers that facilitate precise measurement of three-phase voltage.

Dedicated terminals for connecting two flux/air core coils, aiding in current measurement.

The measured voltage and current outputs are distributed to three DB9 connectors, which link to controllers M1, M2, and C.

The board is designed to support a cable connection of up to 90 meters between the EACF board and the EBKP backplane board, ensuring flexible installation options in industrial settings

Installation and Replacement Procedures
Safety Precautions: Open the auxiliary cabinet door. Use a voltage tester to check for any residual power in the circuit before handlling the board. Ensure that the system is completely powered down to avoid electrical hazards

Disconnecting the Existing Board: Verify that all cables are labeled with the correct connector names (as marked on the board) to facilitate reconnection. Voltage Inputs - Disconnect the wiring from screw connectors TB1, TB2, and TB3. Coil Inputs - Disconnect the wiring at TB4

Removing the Existing Board: Unscrew and remove the three screws securing the EACF board to the mounting standoffs. Gently take out the board from its position, ensuring no damage to adjacent components

Installing the New Board: Position the new EACF board in the same orientation as the removed one. Secure the board in place using the three screws removed in step 3.

Reconnecting the Cables: Reconnect all previously labeled cables and wires to the appropriate terminals on the new board. Ensure that all cables are properly seated at both ends to avoid connection issues. Double-check connections to ensure accuracy before powering on the system.

FAQ

What is IS200EACFG2ABB?
It is an Exciter AC Feedback board developed by GE under the EX2100 series

What is the primary function of the board?
The board measures three-phase voltage and current in the EX2100 Excitation Control. It contains transformers for voltage measurement and terminals for two Flux/Air core coils

Where is the board installed
It is installed within the ExX2100 Excitation System, specifically connected to the EBKP backplane board,

What safety precautions should be taken during replacement?
Always verify power is OFF before touching any circuits. Handle cables carefully and ensure proper labeling to avoid misconnection. Securely fasten the new board to avoid loose connections.

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