Subsea electrical distribution system having subsea busbar enclosure assembly pressurized with sulfur hexaflouride (SF6) gas

摘要

A system and method for coupling electrical power subsea. The system comprises a subsea electrical distribution system having at least one modular subsea circuit breaker assembly. The modular circuit breaker comprises a busbar enclosure housing a busbar. In one embodiment, the bus bar enclosure is pressurized with sulfur hexafluoride (SF6) gas. At least one circuit breaker enclosure housing a subsea circuit breaker is secured to the busbar enclosure. The interior of the busbar enclosure may be sealed from the interior of the circuit breaker enclosure. The circuit breaker enclosure may be pressurized with SF6 gas.

主权项

1. A subsea circuit breaker assembly, comprising:
a busbar enclosure having a hollow interior housing a busbar, the hollow interior of the busbar enclosure being pressurized with sulfur hexafluoride (SF6) gas; a circuit breaker enclosure secured to the busbar enclosure, the circuit breaker enclosure having a hollow interior housing a circuit breaker, the hollow interior of the circuit breaker enclosure being isolated from the hollow interior of the busbar enclosure with a sealed barrier; and a conductor extending from the circuit breaker enclosure through the sealed barrier to the busbar enclosure to electrically couple the circuit breaker to the busbar.