Impact of power conditioning on the life of nuclear plant auxiliary system equipment

Modelling and simulation of degraded and loss of voltage protection scheme for class 1E bus of a nuclear power plant

“…These conditions can be caused by failure of the utility generator power and if not mitigated, might cause unacceptable performance of components, component failures and reductions in component life connected to the bus [2][1] [5][6] [7]. Apart from the magnitude of under voltage, it is also important to look at the duration of the condition which is referred to as fault life in this paper.…”

“…Realistically the diesel generator is only connected if the offsite power source is lost due to a fault and is not available after a specified period of time [5].…”