Basic Information

• Model: IS200EXHSG3AEC

• MRP Part Number: MRP528516

• Brand & Series: GE Speedtronic Mark VI Turbine Control System, EX2100 Excitation Control Series

• Product Type: Exciter High‑Speed Relay Driver Board, Static Exciter High‑Speed Terminal Board

• Compatible Systems: Mark VI Gas/Steam Turbine Control System, EX2100 Static Excitation Control System (TMR Triple Modular Redundant Architecture)

• Country of Origin: USA

• Function: Core drive unit for EX2100 excitation system, drives high‑speed contactors/relays to control excitation circuit switching, de‑excitation, overcurrent protection, ensuring stable and safe excitation current switching

Product Overview

Core Functions

1. High‑Speed Excitation Switch Drive: Drives high‑speed relays/contactors to achieve millisecond‑level fast switching of excitation main circuit, de‑excitation circuit and overcurrent protection circuit, ensuring precise excitation current control and fast fault isolation.

2. TMR Redundancy Compatibility: Adapts to EX2100 triple‑redundant excitation system, supports three‑channel redundant configuration; single‑channel failure does not affect system operation, improving excitation control reliability.

3. Electrical Isolation & Protection: Built‑in isolation, surge suppression, overvoltage/overcurrent/short‑circuit protection circuits, isolating control side from excitation power side, blocking strong electromagnetic interference and ground potential differences to protect core control units.

4. Multi‑Interface Connection: Integrates 3 D‑shell vertical pin connectors and 8 plug‑in connectors of various sizes, adapting to system backplane, excitation power circuit, control signal and power input, with reliable wiring and anti‑vibration performance.

5. Hardware Diagnosis & Status Indication: On‑board relay status, power and fault indicators, supports system self‑diagnosis, facilitating fast fault location and maintenance of excitation circuits.

6. Industrial‑Grade Stable Design: Flame‑retardant PCB substrate (UL94 V‑0), heat dissipation structure, factory‑preconfigured jumpers, adapting to high‑temperature, strong‑interference and vibrating power plant field environments.

Technical Specifications

• Power Supply: 18–36VDC, typical power consumption 12W

• Drive Capacity: Compatible with high‑speed contactors/high‑power relays, supports high‑current switching control of excitation circuits

• Response Speed: Relay operation ≤5ms, meeting fast de‑excitation and protection requirements for excitation systems

• Temperature: Operating 0°C to +65°C (fanless cooling); Storage -40°C to +85°C

• Structure: Industrial PCB with heat sink, 7 high‑speed relays, 50+ capacitors, 100+ resistors, standard Mark VI cabinet slot mounting

• Protection: IP20 (cabinet‑mounted), UL94 V‑0 flame‑retardant, anti‑vibration and anti‑electromagnetic interference (EMI) design

• Connectors: 3×D‑shell vertical pin headers, 8×multi‑spec plug‑in terminals, compatible with backplane/power circuit/control signal connections

• Protection Features: Overvoltage, overcurrent, short‑circuit, surge suppression, fast cut‑off protection for excitation circuit faults

Typical Applications

• High‑speed relay drive, de‑excitation control, overcurrent protection for EX2100 static excitation systems

• Generator excitation circuit switching control for Mark VI turbine control systems

• Excitation control, voltage regulation and fault de‑excitation for gas turbine, steam turbine and hydro generator sets

• Generator excitation safety control in power plants, combined‑cycle power plants and petrochemical energy sectors