Core Channel Configuration

SCR Gate Drive Outputs: 6 independent trigger pulse channels

Control Interface: Fully compatible with ESEL board control commands for SCR firing

Power Supply Specifications

Supply Source: EPDM power module

Operating Voltage: 24 VDC

System Compatibility: Conforms to EX2100 excitation system power architecture

Signal Processing & Isolation

Control-side to power-side electrical isolation ≥ 1000 VDC

Integrated SCR conduction current feedback

High-precision pulse timing control to ensure accurate firing angle regulation

Monitoring & Diagnostic Functions

Power bridge airflow monitoring

Temperature monitoring options:

Dual thermal switches: 170 °F alarm / 190 °F trip, or

RTD-based temperature measurement

Comprehensive fault detection with alarm output

Physical Interface & Installation

Designed for EX2100 power conversion cabinet

Standard GE board form factor

Supports DIN-rail mounting

Fool-proof keyed connectors to prevent incorrect installation

Operating Environment

Temperature: –20 °C to +60 °C

Humidity: 5%–95% (non-condensing)

Meets industrial standards for vibration resistance and electromagnetic compatibility

Protection Functions

Overcurrent, overvoltage, and overtemperature protection

SCR pulse loss detection

Automatic output shutdown and alarm generation upon fault detection

Core Functions & Advantages
Precise SCR Triggering

Receives firing commands from the ESEL board and generates six-channel SCR gate pulses, enabling stable and accurate control of excitation current and meeting the dynamic regulation requirements of generator excitation systems.

Integrated Bridge Monitoring

Provides real-time monitoring of airflow and bridge temperature. Through thermal switches or RTDs, the module implements staged overtemperature alarm and trip protection, safeguarding the power bridge during abnormal operating conditions.

Seamless System Collaboration

Designed for native operation within the EX2100 excitation platform, ensuring coordinated interaction with the EX2100 controller, ESEL board, and EPDM power module. Supports online diagnostics and rapid fault localization.

High Reliability & Availability

Built with industrial-grade components and a wide operating temperature range, the module is well suited for harsh environments. Support for online maintenance minimizes downtime and enhances overall system availability.