发明名称 |
Nuclear power plant, method of replacement in the same and method of operating the same |
摘要 |
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.
|
申请公布号 |
US8090073(B2) |
申请公布日期 |
2012.01.03 |
申请号 |
US20050032289 |
申请日期 |
2005.01.10 |
申请人 |
SUGIYAMA MASASHI;KATAYAMA YUKIHIRO;TOMINAGA KENJI;SATOMI HIROHISA;SHIMODA ICHIROU;HITACHI-GE NUCLEAR ENERGY, LTD. |
发明人 |
SUGIYAMA MASASHI;KATAYAMA YUKIHIRO;TOMINAGA KENJI;SATOMI HIROHISA;SHIMODA ICHIROU |
分类号 |
G21C7/26;G21C7/32;G21C9/00;G21C15/18;G21C15/243;G21D3/04 |
主分类号 |
G21C7/26 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|