Title:
POWER INTERRUPTION SYSTEM
Document Type and Number:
Japanese Patent JP2814190
Kind Code:
B2
Abstract:
PURPOSE: To use power effectively by interrupting power to preselected electric appliances selectively according to a priority when the total current exceeds a contract current limit.
CONSTITUTION: Interruption signals are delivered according to a preset order to the receiver 23 in an adapter 2 and a second circuit breaker 22 functions. The interruption signals are delivered sequentially until the current through the feeder circuit drops below a contract current limit. If the current of feeder circuit does not drop below the contract current limit even after the function of the second circuit breaker, the second circuit breaker 22 is reset. If the current of feeder circuit does not drop below the limit even after the least significant interruption signal is delivered, a first breaker functions. This system realizes efficient use of power without increasing the contract current limit while taking account of temporary increase of power of the electric appliance 6.
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| JP2008236846 | SWITCHING DEVICE |
Inventors:
Takashi Tanaka
Hideki Furukawa
Kaneko Isao
Kazuya Fujisawa
Toshige Masuko
Komaki Mitsunori
Kanako Nakayama
Hideki Furukawa
Kaneko Isao
Kazuya Fujisawa
Toshige Masuko
Komaki Mitsunori
Kanako Nakayama
Application Number:
JP33703193A
Publication Date:
October 22, 1998
Filing Date:
December 28, 1993
Export Citation:
Assignee:
Tokyo Gas Co., Ltd.
International Classes:
H02H3/08; H02H3/00; H02H3/033; H02H3/06; H02J3/00; (IPC1-7): H02H3/033; H02H3/00; H02H3/06; H02H3/08; H02J3/00
Domestic Patent References:
| JP56159935A | ||||
| JP4248324A | ||||
| JP5284672A | ||||
| JP549169A |
Attorney, Agent or Firm:
Hiroo Suzuki
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