FAULT PROTECTION SYSTEM FOR POWER SYSTEM OF DYNAMICALLY POSITIONED VESSEL

摘要

PROBLEM TO BE SOLVED: To provide a fault protection system for a power system of a dynamically positioned vessel.SOLUTION: A fault protection system comprises: a generator circuit breaker for coupling a generator to a bus subsection; one or more feeder circuit breakers for coupling one or more loads to the bus subsection; a first circuit breaker which is a bus tie breaker; a second circuit breaker; protection relays coupled to the circuit breakers for operating the circuit breakers; and communication links between the protection relays. A first end of the bus subsection is connected via the first circuit breaker to the bus tie which provides the electric connection to another bus subsection in a ring configuration. The second circuit breaker couples a second end of the bus subsection to a further bus subsection in the ring configuration. The protection relays exchange information via the communication links.