Product Overview

The General Electric IS200EGPAG1B is an Exciter Gate Pulse Amplifier (EGPA) printed circuit board used in EX2100 excitation control and drive assemblies. The board conditions and amplifies firing commands from the control electronics and converts them into gate drive pulses for a six-SCR power bridge. In addition to pulse generation, it supports key bridge health signals used by the control system, including cooling airflow indication, temperature supervision, and current conduction feedback for operational diagnostics and protection.

This module is typically installed within the exciter/bridge control cabinet and interfaces between control boards and the SCR bridge hardware to ensure stable and synchronized gating during generator excitation operation.

Hardware Parameters

• Model / Order Number: IS200EGPAG1B

• Common Board Identifier: IS200EGPAG1BEC (revision variant)

• Product Type: Gate Pulse Amplifier (EGPA) PCB

• Application Platform: EX2100 Excitation Control System (cabinet/drive assembly dependent)

• Primary Function: Generates gate firing pulses for six SCR devices based on control gating commands

• Bridge Monitoring Support:

• Airflow monitoring input(s) for bridge cooling supervision

• Temperature monitoring via thermal switches or RTD-based sensing (system build dependent)

• Current conduction feedback for bridge status and diagnostics

• Temperature Supervision (thermal switch implementations):

• Alarm threshold: 170°F

• Trip threshold: 190°F

• Coating/Build Class (code dependent):

• “G1” commonly indicates a normally coated PCB build within the EX2100 family coding

• Installation Notes:

• ESD-sensitive PCB; handle with grounded wrist strap and static-safe surface

• Mount using existing cabinet standoffs/insulated hardware; confirm connector orientation and keyed mating

• Condition: Brand New, In Stock, Active

• Origin: USA

• Weight: 1.34 kg

• Dimensions: 33.1 × 26.9 × 4.3 cm

• HS Code: 8537101190

• MOQ: 1

Industrial Applications

• EX2100 excitation systems used on synchronous generators in power plants and industrial facilities

• SCR bridge gate-drive replacement for generator excitation and voltage regulation cabinets

• Maintenance spares for installed-base excitation control platforms requiring original EGPA functionality

• Generator modernization projects retaining EX2100 cabinet architecture and SCR bridge topology

• Systems requiring bridge thermal and airflow supervision integrated into excitation fault logic