GENERAL ELECTRIC IS200EPSMG1ADC Exciter Power Supply Module

GE  IS200EPSMG1ADC Exciter Power Supply Module

Features

Details

IS200EPSMG1ADC is an Exciter PT/CT (EPCT) terminal board developed by GE. It is a part of EX2100 excitation

system. Exciter PT/CT (EPCT) terminal board serves as an indispensable component specifically designed to handle critical

measurements of generator voltage and current via isolation transformers. This board integrates two 3-phase generator

potential transformer (PT) voltage inputs and two generator current transformer (CT) inputs, offering current options of 1 A

or 5 A. All output signals from the isolation transformers are efficiently cabled to the EMIO board, strategically positioned within

the control rack. Additionally, EPCT accommodates a single analog input, capable of accepting either voltage or current inputs.

For applications demanding the utmost reliability, the system can incorporate up to three EPCT boards, ensuring redundancy and system robustness.

• The board's layout, as depicted in the Board Layout, showcases the arrangement of components. T1 through T6 denote the voltage

and current isolation transformers, essential for their respective measurements. Terminal block TB1, held in place by two screws, is

designed for removal if necessary. However, terminal blocks TB2 and TB3 are intentionally fixed,

serving as a protective measure against a potential CT open circuit situation.

• In a simplex control setup, the voltage signals are directed through the J305 connector to the EMIO board situated in the M1 controller

. Conversely, in a redundant control configuration, these signals are distributed, allowing connection to connectors J305, J308, and

J315. Subsequently, they are transmitted to controllers M1, M2, and C, ensuring redundancy and system resilience.

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