Investigation Report
Drawworks Electrical-Panel Contactors Burned Out During Casing Work
05-01-2009 02:30 G04935 MC/20 Fire - Other
- BSEE
- Investigation Report
- Unknown
- Electrical safetyFireMechanical failure
- Inspection and maintenance
- Switchgear
- Functional testing
- Upstream oil and gas
Summary
An investigation examines a drawworks electrical-panel failure during casing work on the Diamond Ocean Ambassador. Two contactors burned out; investigators suspected a broken hinge pin had allowed an uneven connection. Replacement contactors were installed and tested. The rig was down for 15.5 hours, with no injuries or pollution reported.
Classifications: Electrical safety; electrical hazards.
Classifications: Fire; fire safety.
Classifications: Mechanical failure; equipment failure.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Switchgear; switch gear.
Classifications: Functional testing; function test.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.