GE IS200AEADH1A IS200AEADH1AAA Grid Fork Board

The GE IS200AEADH1A and GE IS200AEADH1AAA serve as specialized input/output grid fork boards for exciter systems. These modules belong to the Mark VI series from General Electric. They distribute control signals across multiple grid interface circuits. Consequently, these boards enable reliable synchronization between the exciter and power grid.

Technical Specifications

The table below lists the precise parameters for the GE IS200AEADH1A and IS200AEADH1AAA .

Parameter	Specification
Manufacturer	General Electric (GE)
Full Model Numbers	GE IS200AEADH1A , GE IS200AEADH1AAA
Product Category	Input/Output Grid Fork Board
Dimensions (H x W x D)	2.5 cm x 14.5 cm x 26.0 cm
Weight	0.34 kg (0.75 lbs)
Primary Interface	One 64-pin backplane connector and terminal blocks
Grid Signal Channels	12 fork-type I/O channels
Component Count	Approximately 140 resistors and 48 capacitors
Energy Storage	Six 10 µF tantalum capacitors for signal conditioning
Signal Type	AC voltage and frequency monitoring
Operating Temperature	-30°C to +65°C

Functional Design and Grid Interface

The GE IS200AEADH1AAA connects directly to the exciter backplane of the cabinet. It accepts grid voltage and frequency signals from potential transformers. Then, this board forks each signal to multiple protection circuits. Each channel includes over-voltage clamping for transient protection. Therefore, the IS200AEADH1A provides reliable grid monitoring without signal degradation.

Installation and Compatibility Notes

You must verify voltage levels before connecting to this grid fork board. The GE IS200AEADH1A fits exclusively into Mark VI series exciter cabinets. Always replace faulty units with identical GE board revisions. Additionally, check the fork configuration against your system wiring diagram. This practice ensures proper signal distribution to all protection modules.