GE IS200EBRGH2A | Exciter Bridge Interface Board

Precise Gate Control for GE EX2100 Bridge Circuits

The GE IS200EBRGH2A manages firing signals for the exciter power bridge. This interface board belongs to the Mark VI series from General Electric. It converts low-level logic commands into high-current gate pulses. Therefore, it enables precise control of thyristor firing angles.

Compact Dimensions and Lightweight Construction

This bridge interface board measures 14 cm in width, 10 cm in height, and 2.5 cm in depth. The GE IS200EBRGH2A weighs approximately 0.18 kg, which simplifies rack mounting. Its compact design fits into any standard Mark VI slot. Consequently, you can install it without modifying existing hardware.

Connector Layout and Component Configuration

The GE IS200EBRGH2A 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 gate signal isolation. Additionally, it includes four energy storage capacitors for stable firing energy.

Technical Parameter	Specification
Full Model Name	GE IS200EBRGH2A
Manufacturer	General Electric (GE)
Series	Mark VI / EX2100
Product Category	Exciter Bridge Interface Board
Weight	0.18 kg (0.40 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 cable
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
Number of Gate Channels	6 independent channels
Operating Temperature	–20°C to +60°C

Energy Storage and Pulse Firing Performance

The GE IS200EBRGH2A stores sufficient energy for reliable thyristor firing. Its four capacitors provide 880 µF of total capacitance. This storage delivers consistent gate pulses even during supply dips. 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 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 bridge.

Installation and Cable Connection Guidelines

Use the GE IS200EBRGH2A 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.