To obtain a power switching control device capable of simply calculating at the time of an operation and performing high-speed control even with an inexpensive arithmetic device.
A target pole closing phase map 3a is created by a target pole closing phase map creating means 3 in consideration of pre-arc characteristics 9 of a breaker 6, mechanical motions variation characteristics 10, and amplitude fluctuations of load side voltage in advance. A target pole closing time calculating means 4 calculates a target pole closing time train 4a by referring to the target pole closing phase map 3a from frequencies and phases 2a and 2b of respective power-side voltage and load-side voltage of the breaker 6. A pole closing control means 5 controls output timing of a pole closing control signal 5a on the basis of an estimated pole closing time 12 and the target pole closing time train 4a when a pole closing instruction is input.
| JPS5380572 | DEVICE FOR EXTINGUISHING GAS BREAKER |
| JP4611455 | Transformer excitation inrush current suppression device |
| JPS61173424 | BREAKER |
HIRAI TAKASHI
KAYAMA HARUHIKO
KAMEI KENJI
| JP2004208394A | 2004-07-22 | |||
| JP2001135205A | 2001-05-18 |
Hamada Hatsune