IS200EXAMG1BAA | Exciter Control Module (Mark VIe Series)

Product Model **IS200EXAMG1BAA**
Manufacturer GE (General Electric)
Product Type Exciter Control Module (Mark VIe Series)
Input Voltage 24 VDC ±10% (isolated)
Control Output ±10 VDC, 4-20 mA (field current regulation)
Communication Ethernet (SRTP), Genius Bus, Modbus TCP
I/O Channels 8 analog inputs, 4 digital outputs
Accuracy ±0.1% of full scale (voltage/current sensing)
Operating Temperature -20°C to +65°C
Certifications UL 508, CE, IEC 61800-5-1, ISO 13849
Dimensions 150 x 120 x 35 mm (fits 6U rack)
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Description

Technical Specifications

Product Model **IS200EXAMG1BAA**
Manufacturer GE (General Electric)
Product Type Exciter Control Module (Mark VIe Series)
Input Voltage 24 VDC ±10% (isolated)
Control Output ±10 VDC, 4-20 mA (field current regulation)
Communication Ethernet (SRTP), Genius Bus, Modbus TCP
I/O Channels 8 analog inputs, 4 digital outputs
Accuracy ±0.1% of full scale (voltage/current sensing)
Operating Temperature -20°C to +65°C
Certifications UL 508, CE, IEC 61800-5-1, ISO 13849
Dimensions 150 x 120 x 35 mm (fits 6U rack)

Key Features and Advantages

The **IS200EXAMG1BAA** provides precise control of generator excitation systems in GE’s Mark VIe platforms. Its dual-channel redundancy ensures uninterrupted operation during grid transients, while adaptive PID algorithms stabilize field voltage within ±0.5%. Built-in **ARCNet** communication supports peer-to-peer synchronization with turbine controllers. GE’s **ToolboxST** software enables real-time waveform analysis and fault replay for root-cause diagnostics.

Integrated surge protection (IEC 61000-4-5) safeguards against voltage spikes, and non-volatile memory retains settings during power loss. The module’s conformal-coated PCB resists humidity and corrosive atmospheres, critical for offshore or coastal installations. Optional SIL 2 compliance meets safety standards for critical power infrastructure.

IS200EXAMG1BAA

Application Areas

Gas/steam turbine-generator excitation control, hydroelectric plant voltage regulation, and industrial cogeneration systems. Used in black-start power stations, wind farm grid synchronization, and marine propulsion power management. Ideal for retrofitting legacy excitation systems in GE Speedtronic Mark IV/V turbines.

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Installation and Configuration

**Installation**: Mount in Mark VIe rack using VME64x-compatible slot. Ground chassis to station earth grid (≤0.1 Ω). Shield excitation cables with Belden 9501 or equivalent. Maintain 75 mm clearance from high-voltage busbars.

**Configuration**: Set CT/VT ratios via ToolboxST. Perform dynamic response tests using **GE Grid Simulator Suite**. Enable field flashing logic for generator start-up sequences. Validate redundancy failover via forced fault injection.

Maintenance and Diagnostics

Monitor diode health in rotating rectifiers via **Rotor Diode Monitor (RDM)** add-on. Perform annual dielectric tests on field windings (5 kV AC, 1 min). Replace cooling fans every 5 years (P/N FR-2025). Use **Fault Recorder Viewer** to analyze excitation trips (last 100 events stored).

Product Assurance

GE’s **IS200EXAMG1BAA** undergoes 1,000-hour HALT testing and 50,000 mechanical insertion cycles. The 4-year warranty includes firmware updates via GE’s **Proficy® Lifecycle Management**. Compliance with NERC PRC-019-2 ensures grid code compatibility. Global 24/7 technical support through GE’s Excitation Competency Center.

Note: For SIL 2 applications, use redundant pairs (IS200EXAMG1BAA-R). Always discharge field windings before maintenance. Refer to GEH-6721_Vol_II for Mark VIe integration guidelines.

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