Dc feedback board in GE IS200EDFFH1A EX2100E series excitation control system

Dc feedback board in GE IS200EDFFH1A EX2100E series excitation control system

Basic information
Manufacturer: GE Industrial Systems
Series: EX2100E
Component number: IS200EDFFH1A
Function abbreviation: EDFF
Manual number: GEI-100770

Functional characteristics
Measurement and feedback: The main function is to measure the excitation voltage and current at the SCR bridge (SCR bridge) and send these signals to the EX2100E Excitation Control Auxiliary interface (EAUX). During operation, it scales and converts the excitation voltage and current at the regulator/exciter output into a frequency feedback signal, which is realized by a voltage-frequency (V-F) conversion circuit, where one circuit is used for excitation voltage feedback and the other for excitation current feedback.
Communication isolation: A fiber optic link provides voltage isolation between EAUX and EDFF boards with high noise resistance.
Power supply: 28V DC power supply

The circuit board is part of the EX2100E series of high voltage interfaces and plays a key role in GE’s excitation control system, helping to achieve accurate control and monitoring of generator excitation and ensure stable operation of the system.