GE IS200AEPAH1BRJ‑P AEP Auxiliary Exciter Power & Relay Interface Board for Mark VI Turbine Control System

Description

GE IS200AEPAH1BRJ‑P AEP Auxiliary Exciter Power & Relay Interface Board for Mark VI Turbine Control System

Product Details

The IS200AEPAH1BRJ‑P is a rack‑mounted auxiliary power supply and relay interface PCB for legacy GE Speedtronic Mark VI turbine control platform (not Mark VIe). Origin: USA. Lifecycle status: EOL discontinued, OEM new production terminated; market supplies are NOS surplus and fully‑tested refurbished spare‑parts for power‑plant maintenance. Suffix ‑P denotes processed / tested spare‑part version.

It provides regulated auxiliary DC power, integrates 12 on‑board relays and 6 varistors, performs excitation‑related signal switching, auxiliary power distribution and surge suppression for turbine auxiliary loops. Mains input: 85‑264 VAC wide‑range AC input; multi‑channel DC output: 5 VDC / 24 VDC, max output power 240 W. Communicates via Mark VI rack backplane, dual Sub‑D connectors for external field wiring interface. Operating temperature:‑10℃ ~ +60℃; storage‑40℃ ~ +85℃, humidity 5‑95 % non‑condensing. Weight approx 0.9 kg. Supports Simplex and TMR triple‑modular‑redundant rack configurations. Hardware revision must match original unit on replacement.

Applications

‑ Gas / steam turbine Mark‑VI control cabinet auxiliary power and relay‑switching ‑ Power‑plant legacy turbine‑excitation auxiliary power interface ‑ Combined‑cycle unit Mark‑VI rack spare‑part replacement ‑ Petrochemical turbo‑machinery old‑generation control‑system maintenance ‑ Wind‑turbine Mark‑VI‑based excitation power‑supply cabinet retrofit ‑ Spare inventory for power‑plant legacy‑turbine‑maintenance department

IS200AEPAH1BRJ‑P

Related Series Models (6+)

1. IS200AEPAH1AAA (Early baseline AEP board)
2. IS200AEPAH1AFD (Alternative hardware revision)
3. IS200AEPAH1ACB (Another revision variant)
4. IS200AEBIH1B (AE bridge interface board for Mark VI)
5. IS200AEPBH1B (Mark VIe generation power‑related board)
6. IS210BPPCH1AD (Mark VIe I/O‑pack processor board)
7. IS200TPROH1B (Mark VI terminal board assembly)

Key Features

1. Dedicated AEP auxiliary exciter power‑and‑relay‑interface PCB for GE legacy Mark VI turbine‑control rack.
2. Wide‑range 85‑264 VAC input, multi‑channel regulated DC auxiliary outputs up to 240 W total power.
3. Integrates 12 built‑in relays plus 6 varistors for signal switching and surge over‑voltage suppression.
4. Dual Sub‑D connectors for external field wiring; communicates through Mark‑VI‑specific rack backplane.
5. Supports both simplex and TMR triple‑modular‑redundant turbine‑safety‑control architectures.
6. Designed for cabinet‑only installation, wide operating‑humidity tolerance for plant environment.
7. Mechanical fit only for Mark‑VI racks; cannot be directly plugged into Mark VIe chassis. Verify hardware revision prior to swap‑out.
8. Manufactured in USA; EOL obsolete, only NOS or fully‑tested refurbished spare‑parts available.

Main Functions

1. Accepts AC mains input and generates multiple regulated DC auxiliary power supplies for Mark‑VI rack internal circuits and excitation‑related auxiliaries.
2. Uses on‑board relays to implement auxiliary‑loop signal switching for turbine excitation and balance‑of‑plant interlock circuits.
3. Varistor components suppress voltage surges, protect adjacent control‑board electronics from field‑side transients.
4. Interfaces field signals to Mark‑VI main processor via rack backplane and dual Sub‑D external connectors.
5. Works within TMR voting logic when deployed in triple‑redundant Mark‑VI turbine‑protection racks.
6. Delivers stable auxiliary power for exciter‑control peripherals of gas‑steam turbine prime movers.
7. Cooperates with CPU, terminal boards and other Mark‑VI PCBs to complete legacy turbine‑control‑hardware architecture.
8. Serve as auxiliary power‑and‑relay‑interface unit in GE Mark VI Speedtronic turbine‑control cabinet.