Investigation Report
Platform Blackout During Uninterruptible Power Supply Replacement
09-18-2017 11:00 G09868 MC 778 Loss of Power
- BSEE
- Investigation Report
- Unknown
- Electrical safetyFunctional safety
- Electrical work
- Gas detectorSwitchgear
- Competence and trainingEvacuation, escape and rescueOperating and work proceduresVentilation
- Upstream oil and gas
- Offshore installation
Summary
Investigation of a Thunder Horse platform blackout during uninterruptible power supply replacement. It examines inverter failure, power synchronisation tolerances and a persistent abandon-platform signal, alongside battery-room gas readings and evacuation. Recommendations address black-start procedures, protective features, engineering handover, blackout evacuation arrangements and critical ventilation performance.
Classifications: Electrical safety; electrical hazards.
Classifications: Functional safety; safety instrumented systems; SIS.
Classifications: Electrical work; electrical maintenance.
Classifications: Gas detector; gas monitor; gas detection instrument.
Classifications: Switchgear; switch gear.
Classifications: Competence and training; competency assurance; safety training.
Classifications: Evacuation, escape and rescue; EER; escape and rescue.
Classifications: Operating and work procedures.
Classifications: Ventilation; forced ventilation.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Offshore installation; offshore platform; offshore rig.