GE Electric | IS200AEPCH1ABC | Excitation control processor module
IS200AEPCH1ABC Product Overview
Functional Description:
The GE IS200AEPCH1ABC is an Excitation Control Processor module from GE’s Mark VI Speedtronic™ series. It manages generator field current regulation, voltage control, and protection functions for synchronous generators in power plants, ensuring grid stability during load changes and faults.
Key Parameters & Specifications
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Parameter
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Specification
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Part Number
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IS200AEPCH1ABC
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Series
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GE Mark VI Turbine Control System
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Function
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Generator Excitation Control & Protection
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Input Voltage
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125 V DC (±10%) via terminal block
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Communication
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Dual Ethernet + PROFIBUS DP
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I/O Handling
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Interfaces with excitation I/O packs (e.g., IS200)**
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Processor
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32-bit RISC (Power Architecture)
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Operating Temp.
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-20°C to +60°C (-4°F to +140°F)
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Protection Functions
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Over/Under Excitation, V/Hz Limiting, Loss-of-Field
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Firmware
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GE ToolboxST™ (v6.0+ for Mark VI)
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Certifications
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UL 508, CE, ISO 9001, IEEE 421.4
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Product Series
- Part of GE’s Mark VI platform (predecessor to Mark VIe), optimized for steam/gas turbine-generator control.
Key Features
- Adaptive AVR (Automatic Voltage Regulator): Maintains voltage ±0.25% accuracy.
- Power System Stabilizer (PSS): Damps grid oscillations.
- Multiple Control Modes: Auto/Manual, VAR/PF control.
- Redundant Processor Sync: Hot backup with <50 ms failover.
- Real-Time Diagnostics: Monitors thyristor health, field ground faults.
- Legacy Compatibility: Interfaces with GE EX2000 exciters.
Functions & Roles
- Voltage Regulation: Controls generator output voltage (typically 6.9 kV–24 kV).
- Field Current Management: Limits DC field current surges.
- Protection Logic: Trips generator on overfluxing (V/Hz) or rotor overheating.
- Black Start Support: Enables generator self-excitation during grid outages.
- Data Logging: Records 30+ days of excitation events.
Applications & Use Cases
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Industry
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Application
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Power Generation
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Steam/Gas Turbine Generator Control
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Hydroelectric
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Brushless Excitation for Hydro Generators
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Industrial Plants
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Synchronous Motor Drives (Cement, Mining)
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Marine
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Shipboard Power Management
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Grid Services
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Reactive Power (VAR) Compensation
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Documentation & Support
- Manual: GEH-6421A (Mark VI Excitation Control)
- Configuration: GE ToolboxST™ EX2100 software suite
- Compatibility: Requires IS200 excitation I/O packs (e.g., IS200ERPGH1A)
- Lifecycle Status: Active (GE part # PVB793204S)
- Datasheet: GE Support (Search part number)
Critical Notes:
- Requires ±15V DC analog power supply for control circuits.
- Fieldbus protocols: Modbus RTU/TCP, GENIUS Bus.
- Replacement for legacy AEP-101 exciter systems.
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