GE DS200FGPAG1AHD FGPA Gate Pulse Amplifier Board 

Technical Specifications

Model: DS200FGPAG1AHD

Brand: GE (GE Vernova)

Product Type: FGPA Gate Pulse Amplifier Board

Applicable System: Speedtronic Mark V turbine control system, LCI static starter drive system

Core Function: SCR gate pulse amplification, thyristor status monitoring, auxiliary power conversion

Hardware Interface: 15 fiber‑optic connectors, board‑to‑board ribbon connector, 30‑point test measurement terminals

Drive Capacity: 10A peak gate current, 5A continuous gate output current

Isolation Performance: 1500V channel‑to‑backplane electrical isolation

Indicator: On‑board LED status indicators for gate drive and cell fault diagnosis

Power Supply: 120VAC auxiliary input, rack backplane auxiliary power

Operating Temperature:‑30℃ ~ +65℃, non‑condensing

Humidity:5%‑95% non‑condensing

Protection Class:IP20, cabinet rack‑mount only

Weight:0.80kg

Dimension:240mm ×190mm ×32mm

Application: Power plant LCI static starter cabinet, gas‑turbine starting drive control cabinet

Product Function Description

DS200FGPAG1AHD FGPA gate pulse amplifier board is the key power drive component of GE LCI static starter system. It receives logic‑level pulse commands from SDCC main control board, amplifies the signal into high‑current gate pulse to trigger SCR thyristor power components.

The board adopts fiber‑optic communication to realize anti‑interference data interaction with upper controller. Thirty reserved test points support oscilloscope detection of pulse timing and amplitude during commissioning. It monitors the working state of each thyristor cell in real time, feeds back gate undervoltage, misfire and other fault information to the main system. AHD hardware revision optimizes drive circuit stability, enhances isolation performance, and guarantees reliable execution of gas turbine start‑up and commutation logic.

Product Details

Rack‑mount multilayer PCB board inserts directly into Mark V cabinet slot. Conformal coating protects circuit board against dust, moisture and strong electromagnetic interference in power‑plant site. This original OEM product is end‑of‑life, widely used for overhaul and spare‑part replacement of LCI static starter units. Strict electrostatic protection is required during installation. Verify hardware revision and fiber‑optic wiring sequence to ensure normal system startup.