GE IS200EBRGH2A Excitation Bridge Interface Board
The GE IS200EBRGH2A is an Exciter Bridge Interface Board manufactured by General Electric. It is a component of the EX2100e Series, which is used in GE Excitation Control Systems.
In essence, it’s a specialized circuit board designed to interface with and control the exciter bridge within a power generation system, typically a turbine.
IS200EBRGH2A Technical Specifications
| Board Group | EBRGH2 |
| Board Type | Bridge and Protection Module |
| Functional Acronym/Abbreviation | EBRG |
| Interfaces | Control to the Power Bridge |
| Number of EBRGs per PCM | One |
| Part Specific Manual | GEI-100776 |
| Power Source | 125 VDC from EDIS |
| Power Supply | 125 VDC |
| Series Manual | GEH-6781L |
| Thyristor Systems | 42, 52, and 77 mm |
About the IS200EBRGH2A
Bridge and Protection module IS200EBRGH2A is a Bridge Interface that is used for controlling related bridge I/O terminal boards as well as controlling the power bridge (SCR). This board is part of the second group of the EBRG boards, this second group is used with thyristors that are seventy-seven millimeters or smaller. One feature of this board is that it can be used with most SCR devices within the EX2100e series, as such, it allows for uses with several bridge architectures and SCR ratings which includes paralleling bridge converters, simplex, and WBU.
There are LED indicators on the IS200EBRGH2A board that will provide the status for the following:
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Alarm Conditions
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Bridge Temperature
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Currents into the Bridge
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Cooling Fan Rotation
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Fault Conditions
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Gate Power Supply
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Line Filter
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Output Firing
There are features of the EBRG board that are used for interfacing current condition feedback and controlling the bridge; the bridge controls will pass through this board. Please note that there is a C controller within this series that will not interface with the IS200EBRGH2A board for bridge firing.
The main mounting location for this board is the Power Conversion Cabinet, when in the power conversion cabinet. This model will also be used with a PCM, DC circuit contactors, and a circuit disconnect or breaker.







