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ABB SDCS-FEP-1 (3BSE006309R0001) Field Protection Unit  

1. Key Parameters

• Product Model: SDCS-FEP-1 (Order Code: 3BSE006309R0001)
• Product Series: ABB SDCS-Series Industrial Excitation Protection Units (Field Circuit Safety)
• Core Function: Field overcurrent/overvoltage protection; rotor insulation monitoring; fault signal output; SDCS excitation system linkage.

2. Core Features

• Targeted Field Protection: Focuses on excitation system-specific faults (rotor grounding, field overcurrent) that directly threaten generator safety, filling protection gaps of general control modules.
• Rapid Fault Response: <50ms action time for overcurrent/overvoltage minimizes fault impact, avoiding permanent damage to field windings.
• SDCS System Integration: Seamlessly links with ABB SDCS excitation systems, synchronizing fault signals with the main control module for coordinated shutdown.
• Visual Fault Diagnosis: Dedicated LED indicators for each fault type simplify on-site troubleshooting (e.g., quickly distinguishing grounding vs. overcurrent faults).

3. Application Fields

• Thermal/Hydropower Plants: Protects field circuits of steam/hydro turbine synchronous generators, ensuring stable grid power supply.
• Industrial Self-Owned Power Plants: Safeguards excitation systems of on-site synchronous generators in steel mills, petrochemical complexes, and cement plants.
• Large Backup Power Systems: Secures diesel-synchronous generator excitation circuits in data centers, hospitals, and critical infrastructure.
• New Energy Supporting Systems: Protects excitation systems of synchronous generators in biomass power plants or wind-solar hybrid power stations.

4. Precautions

• Compatibility: Use exclusively with ABB SDCS-series excitation systems; do not install in non-ABB or standalone excitation devices.
• Installation: Must be commissioned by professional power system engineers; calibrate protection thresholds (e.g., overcurrent limit) to match generator rated parameters.
• Maintenance: Test rotor grounding detection accuracy quarterly with insulation resistance meters; avoid modifying internal protection logic without ABB authorization.
• Spare Parts: Use genuine ABB SDCS-FEP-1 units—non-genuine units may have delayed fault response or false alarms, risking generator damage

The structure and details of the product：

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