GE IS200EBRGH2A IS200EBRGH2AEB | Exciter Bridge Board

Precise Thyristor Firing for GE EX2100 Bridges

The GE IS200EBRGH2A IS200EBRGH2AEB converts logic commands into high-energy gate pulses. This interface board belongs to the Mark VI series from General Electric. It drives the exciter power bridge thyristors directly. Therefore, it enables precise control of field current for generator excitation.

Physical Dimensions and Rack Mounting Details

This bridge interface board measures 14 cm in width, 10 cm in height, and 2.5 cm in depth. The GE IS200EBRGH2A IS200EBRGH2AEB weighs approximately 0.19 kg, which simplifies rack installation. Its compact single-board design fits into any standard Mark VI slot. Consequently, you can replace it without disturbing adjacent modules.

Connector Layout and Component Configuration

The GE IS200EBRGH2A IS200EBRGH2AEB features one 34-pin backplane connector for regulator communication. It also provides two 10-pin ribbon cable headers for bridge connection. This board contains six pulse transformer drivers for galvanic isolation. Additionally, it includes four energy storage capacitors for firing energy reserve.

Technical Parameter	Specification
Full Model Name	GE IS200EBRGH2A IS200EBRGH2AEB
Manufacturer	General Electric (GE)
Series	Mark VI / EX2100
Product Category	Exciter Interface Bridge Board
Weight	0.19 kg (0.42 lbs)
Dimensions (W x H x D)	140 mm x 100 mm x 25 mm
Backplane Connector	1 x 34-pin header
Bridge Output Headers	2 x 10-pin ribbon
Pulse Transformer Drivers	6 units
Energy Storage Capacitors	4 units (220 µF each)
Total Capacitance	880 µF
Output Pulse Voltage	15 VDC
Output Pulse Current	2 A peak
Isolation Voltage	2.5 kV per transformer
Number of Gate Channels	6 independent channels
Operating Temperature	–20°C to +60°C

Energy Storage and Pulse Firing Performance

The GE IS200EBRGH2A IS200EBRGH2AEB stores sufficient energy for reliable thyristor firing. Its four capacitors provide 880 µF of total capacitance. This storage delivers consistent gate pulses during supply fluctuations. Furthermore, each pulse transformer provides 2.5 kV isolation between logic and power circuits.

Role Within the EX2100 Excitation System

You will typically find the GE IS200EBRGH2A IS200EBRGH2AEB in the bridge interface slot of the EX2100 rack. It connects the main regulator to the thyristor bridge modules. Moreover, this board supports both forward and reverse bridge configurations. Its six channels fire up to six thyristors in a three-phase, full-wave bridge.

Installation and Cable Connection Guidelines

Use the GE IS200EBRGH2A IS200EBRGH2AEB as a direct replacement for older EBRG revisions. Always power down the exciter rack before handling this board. The ribbon cables carry high-energy gate pulses to the bridge. Verify correct cable orientation before connecting to the 10-pin headers. Simply slide the board into its guided slot and lock the ejector tabs.