System Architecture & Operational Principle The IS200EHPAG1D (EHPA) is an active, intelligent control board located in the Power Conversion Cabinet, typically mounted on the EBKP backplane or a dedicated sub-chassis near the Power Conversion Modules (PCMs). Upstream, it receives six low-voltage TTL gate commands from the ESEL (Exciter Selector/Sequence) board via shielded twisted-pair cables. These…
DetailsQuick Sizing & Sourcing Snapshot Manufacturer: GE (General Electric) Part Number: IS200EGPAG1B System Platform: EX2100 / EX2100e Excitation Control Hardware Type: Exciter Gate Pulse Amplifier Board (EGPA) Architectural Role: Amplifies low-level TTL firing pulses from the ESEL board to high-current gate drive signals for up to 6 SCRs in the power bridge; monitors bridge temperature…
DetailsQuick Sizing & Sourcing Snapshot Manufacturer: GE (General Electric / Vernova) Part Number: IS200EGDMH1A System Platform: EX2100 / EX2100e Excitation Control (Mark VI/VIe) Hardware Type: Exciter Ground Detector Module (EGDM) Architectural Role: Injects a low-voltage AC signal into the exciter field circuit to detect insulation degradation/ground faults, interfacing with the EXAM module and DSPX via…
DetailsQuick Sizing & Sourcing Snapshot Manufacturer: GE (General Electric) Part Number: IS200EDCFG1B System Platform: EX2100 / EX2100e Excitation Control (Mark VI/VIe) Hardware Type: Exciter DC Feedback Board (EDCF) Architectural Role: Measures DC Field Voltage and Current at the SCR bridge and converts signals to frequency/optical pulses for the EISB controller interface. Key Specifications: 1400V RMS…
DetailsQuick Sizing & Sourcing Snapshot Manufacturer: GE (General Electric) Part Number: IS200ECTBG2A System Platform: EX2100 / EX2100e Excitation Control (Mark VI/VIe) Hardware Type: Exciter Contact Terminal Board (ECTB – Simplex) Architectural Role: Provides passive field termination for 6 auxiliary contact inputs and 2 trip relays, interfacing a single M1 controller via the EMIO board in…
DetailsQuick Sizing & Sourcing Snapshot Manufacturer: GE (General Electric) Part Number: IS200ECTBG1A System Platform: EX2100 / EX2100e Excitation Control (Mark VI/VIe) Hardware Type: Exciter Contact Terminal Board (ECTB) Architectural Role: Provides the passive field termination for redundant trip relays and 70V DC wetted auxiliary contacts, interfacing the M1, M2, and C controllers via the EMIO…
DetailsQuick Sizing & Sourcing Snapshot Manufacturer: GE (General Electric) Part Number: IS200EACFG3B System Platform: EX2100 / EX2100e Excitation Control (Mark VI/VIe) Hardware Type: Exciter AC Feedback Board (EACF – High Voltage) Architectural Role: Conditions Generator PPT (Voltage) and Air Core CT (Current) signals, fanning them out to M1, M2, and C controllers via DB9 links…
DetailsQuick Sizing & Sourcing Snapshot Manufacturer: GE (General Electric) Part Number: IS200EACFG2B System Platform: EX2100 / EX2100e Excitation Control (Mark VI/VIe) Hardware Type: Exciter AC Feedback Board (EACF) Architectural Role: Conditions and fans out Generator PPT (Voltage) and Air Core CT (Current) signals to the M1, M2, and C controllers via DB9 links in a…
DetailsQuick Sizing & Sourcing Snapshot Manufacturer: GE (General Electric) Part Number: IS200EACFG1B System Platform: EX2100 / EX2100e Excitation Control (Mark VI/VIe) Hardware Type: Exciter AC Feedback Board (EACF) Architectural Role: Conditions and fans out Generator PPT (Voltage) and Air Core CT (Current) signals to the M1, M2, and C controllers via DB9 links. Key Specifications:…
DetailsQuick Sizing & Sourcing Snapshot Manufacturer: GE (General Electric) Part Number: IS200DSPXH1D System Platform: Mark VI / EX2100 Excitation Control Hardware Type: Digital Signal Processor (DSP) Control Board Architectural Role: Executes high-speed math (PID, FFT) and excitation logic in the VME controller rack, offloading the main CPU (VCMI/UCVE). Key Specifications: 60 MHz DSP + ASIC,…
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