GE Electric | IS200AEPAH1ACB | Excitation protection and analog processing module
IS200AEPAH1ACB Product Overview
Functional Description:
The GE IS200AEPAH1ACB is an Advanced Excitation Protection and Analog Handling Module for GE’s Mark VI turbine control systems. It provides critical monitoring and protection for generator excitation circuits, ensuring safe operation during voltage/frequency anomalies.
Key Parameters & Specifications
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Parameter
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Specification
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|---|---|
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Part Number
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IS200AEPAH1ACB
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Series
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GE Mark VI Turbine Control System
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Function
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Excitation Protection & Analog Signal Processing
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Input Voltage
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125 V DC (±20% tolerance)
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Analog Inputs
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16 channels
(0-150V AC/DC, 0-7.5A AC) |
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Sampling Rate
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8 kHz per channel
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Relay Outputs
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6 Form-C (6A @ 250V AC)
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Accuracy
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±0.1% (Voltage), ±0.25% (Current)
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Communication
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1 Gbps Ethernet + CANbus
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Operating Temp.
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-30°C to +65°C (-22°F to +149°F)
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Isolation
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3000 V RMS (channel-to-ground)
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Certifications
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UL 508, IEC 61010, CE, RoHS
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Product Series
- Core component of GE’s Mark VI Excitation Protection Series.
Key Features
- Multi-Stage Protection: 3-level thresholds for under/over-voltage/frequency.
- RTD/TC Inputs: 8x Pt100 RTDs or thermocouples for temperature monitoring.
- Dynamic Filtering: Adaptive noise suppression for grid harmonics.
- Fault Waveform Capture: 128-cycle oscillography during trips.
- Optical Isolation: Galvanic separation for all I/O channels.
- Redundancy Support: Auto-failover to backup module.
Functions & Roles
- Generator Field Protection: Trips excitation during dangerous overcurrent/voltage.
- Analog Scaling: Converts PT/CT signals to digital values (16-bit ADC).
- Power Quality Analysis: Monitors phase imbalance, flicker, and harmonics.
- Sequence-of-Events (SOE): Logs 1ms-resolution fault timelines.
- Synchronization Enable: Permits grid connection only within safe parameters.
Applications & Use Cases
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Industry
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Application
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|---|---|
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Thermal Power
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Gas/coal turbine AVR backup protection
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Renewables
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Solar/Wind inverter grid compliance monitoring
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Industrial
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Large motor drive excitation safety
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Offshore Platforms:
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Generator black-start supervision
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Steel Plants
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Synchronous motor protection
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Documentation & Support
- Manual: GEH-6421G (Mark VI Excitation Systems)
- Configuration: GE ToolboxST™ (v7.3+)
- Firmware Upgrade: Via SD card slot (front panel)
- Compatibility: Interfaces with EX2100e exciters
- Safety Integrity: SIL 3 (IEC 61508)
Critical Notes:
- Requires Mark VI Rack (e.g., IS200RACKG1A) for installation.
- Redundancy Pairing: Compatible with IS200AEPAH1ACC.
- Max CT Secondary: 7.5A continuous.
- Calibration: Laser-trimmed resistors (±0.01% stability).
- MTBF: 350,000 hours per IEC 61709.
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