GE IS200EXHSG3AEC Exciter High‑Speed Relay Driver Board

Technical Specifications

Model: IS200EXHSG3AEC

Part Number: IS200EXHSG3AEC，MRP528516

Brand: GE（GE Vernova）

Product Type: Exciter high‑speed relay driver board

Matching System: GE Speedtronic Mark VI turbine control system, EX2100 excitation control system

Power Supply:24VDC from control rack, working voltage 22.5‑28.5VDC

Function: High‑speed relay driving, excitation protection logic execution

Isolation: Channel‑to‑logic galvanic isolation design

Indicator: On‑board LED indicators for channel status and fault signal

Installation: Mark VI VME rack plug‑in installation

Operating Temperature:‑20℃ ~ +65℃, non‑condensing

Humidity:5%‑95% non‑condensing

Protection Class:IP20

Weight:0.20kg

Dimension:126mm ×124mm ×22mm

Compatible System:Gas‑steam turbine, synchronous generator excitation control cabinet

Core Function

Exciter high‑speed relay driver board for Mark VI and EX2100 excitation system. It receives control commands from main controller, converts logic signals into high‑speed relay driving output, realizes rapid regulation and protection response for generator excitation loop. With channel galvanic isolation, it isolates excitation field side and control circuit, effectively suppresses interference. Supports TMR triple‑modular redundant system configuration, completes generator excitation fast protection under transient load and fault conditions.

Product Details

The IS200EXHSG3AEC (MRP528516) is EXHSG series high‑speed relay driver board for GE Mark VI Speedtronic and EX2100 excitation control system.

This rack‑mount board is dedicated for generator excitation control and protection. It executes fast response control actions when generator load fluctuates or fault occurs, quickly adjusting excitation related relay status to protect generator field winding. Channel‑level galvanic isolation reduces ground loop interference between high‑power excitation field and low‑voltage control rack. On‑board LED status lights help field engineers check working condition and locate channel faults rapidly. Conformal coated circuit board improves anti‑vibration, moisture‑proof performance, adapts to severe environment of power plant excitation cabinet. It is widely deployed in simplex and TMR triple‑modular redundant generator excitation control cabinets.

It belongs to critical excitation protection spare‑part for Mark VI / EX2100 system, widely used in overhaul and renovation projects of power generation units.

It is important spare hardware for excitation loop debugging and defective IS200EXHSG3AEC board replacement.