GE IS200EDEXG1B IS200EDEXG1BBB | Exciter Control Board

Integrated Control for Digital Excitation Systems

The GE IS200EDEXG1B IS200EDEXG1BBB manages both exciter regulation and DE functions. This control board belongs to the Mark VI series from General Electric. It combines field flashing, voltage regulation, and protection features. Therefore, it eliminates the need for separate exciter and DE hardware.

Physical Dimensions and Rack Mounting Details

This control board measures 26 cm in width, 18 cm in height, and 4.5 cm in depth. The GE IS200EDEXG1B IS200EDEXG1BBB weighs approximately 0.72 kg, which supports secure rack mounting. Its six-layer PCB contains high-density surface-mount components. Consequently, you can install it in any standard Mark VI exciter slot.

Connector Layout and Component Configuration

The GE IS200EDEXG1B IS200EDEXG1BBB features one 96-pin backplane connector for system bus access. It also provides two 34-pin ribbon headers for I/O expansion. This board contains one 32-bit DSP processor and eight analog input channels. Additionally, it includes sixteen energy storage capacitors for power ride-through.

Technical Parameter	Specification
Full Model Name	GE IS200EDEXG1B IS200EDEXG1BBB
Manufacturer	General Electric (GE)
Series	Mark VI / EX2100
Product Category	Exciter DE/Excitation Control Board
Weight	0.72 kg (1.59 lbs)
Dimensions (W x H x D)	260 mm x 180 mm x 45 mm
Backplane Connector	1 x 96-pin DIN
I/O Expansion Headers	2 x 34-pin ribbon
Processor	32-bit DSP (80 MHz)
Analog Input Channels	8 (16-bit resolution)
Digital I/O Channels	16 inputs / 12 outputs
Energy Storage Capacitors	16 units (470 µF each)
Total Capacitance	7,520 µF
Brownout Hold-Up Time	60 ms minimum
Operating Temperature	–20°C to +60°C

Energy Storage and Ride-Through Performance

The GE IS200EDEXG1B IS200EDEXG1BBB stores significant energy for critical hold-up. Its sixteen capacitors provide 7,520 µF of total capacitance. This storage keeps the DSP running for 60 milliseconds after a power dip. As a result, the board maintains field excitation during momentary supply interruptions.

Role Within the EX2100 Excitation System

You will typically find the GE IS200EDEXG1B IS200EDEXG1BBB in the main processor slot of the exciter rack. It communicates with bridge interface boards via the VME backplane. Moreover, this board supports both manual and automatic voltage regulation modes. Its eight analog inputs accept signals from PTs, CTs, and field sensors.

Installation and Firmware Guidelines

Use the GE IS200EDEXG1B IS200EDEXG1BBB as a direct replacement for older EDEX revisions. Always power down the entire exciter rack before handling this board. The 96-pin connector aligns with standard VME keying guides. This board requires specific firmware for your excitation application. Simply slide it into the chassis and lock both ejector handles.