Nuclear power plant, method of replacement in the same and method of operating the same

Nuclear power plant, method of replacement in the same and method of operating the same

A recirculation pump motor is supplied with a power from a unit auxiliary middle voltage bus through a power supply system including a first circuit breaker, a voltage source inverter, and a second circuit breaker electrically connected in series to provide a no-load operation by use of the voltage...

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Hauptverfasser: Sugiyama, Masashi, Katayama, Yukihiro, Tominaga, Kenji, Satomi, Hirohisa, Shimoda, Ichirou
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Sprache:eng
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creator Sugiyama, Masashi
Katayama, Yukihiro
Tominaga, Kenji
Satomi, Hirohisa
Shimoda, Ichirou
description A recirculation pump motor is supplied with a power from a unit auxiliary middle voltage bus through a power supply system including a first circuit breaker, a voltage source inverter, and a second circuit breaker electrically connected in series to provide a no-load operation by use of the voltage source inverter. The second circuit breaker may be multiplexed with more than one breaker electrically connected in series. An existing nuclear plant using a induction motor driving a hydraulic coupling mechanically coupled to a synchronous generator for driving the recirculation pump, such as an MfG set, may be subjected to a method of replacing the induction motor, the hydraulic coupling, and the synchronous generator with the voltage source inverter and a circuit breaker through electrically disconnection and removal.
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title Nuclear power plant, method of replacement in the same and method of operating the same
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