IS200EXHSG3REC Exciter high-speed relay drive board

Brand:GE

Model:IS200EXHSG3REC

Origin: U.S.A

Warranty: one year

Contact information:+86 18030215387

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IS200EXHSG3REC is an exciter high-speed relay driver board manufactured by General Electric (GE), belonging to the EX2100 series. It is mainly used in GE’s excitation turbine control system and plays a key role in the excitation control process. Here are its detailed specifications:

Function and Purpose

It provides driving for DC contactors (41) as well as pilot relays related to field discharge and field flashing functions. Meanwhile, it conditions the field discharge status signals from the excitation field discharge board (EDEX) and the crowbar status signals from the field discharge control board, and then transmits the signals to the excitation main input/output board (EMIO) for further processing.

Connection Method

In a redundant control setup, it is connected to three IS200EMIO boards via the excitation backplane (IS200EBKP); in a simplex control configuration, it is connected to a single EMIO board.

Electrical Parameters

  • Contact power supply: 125V DC
  • Input voltage: 120V AC
  • Output voltage: 5V to 24V DC
  • Relay open characteristics: 28V DC
  • Operating voltage range: 90V to 265V AC
  • Signal feedback input/output: Analog (4-20mA)

Structural Design

The circuit board is coated with a conventional coating, which can provide a certain degree of protection. There are three D-shell vertical pin connectors and eight plug connectors of different sizes on the board. Additionally, there are some jumpers on the board, which are added by the original manufacturer for initial voltage testing and cannot be customized.

Application Fields

It can be applied in industrial fields such as power generation, oil and gas processing. As an important part of GE’s Mark VI turbine control system, it ensures the accuracy and reliability of turbine excitation control.

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