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Title:
POWER LINE PROTECTION DEVICE, POWER LINE SWITCH, AND POWER SUPPLY SYSTEM
Document Type and Number:
Japanese Patent JP2014204484
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a power line protection device, a power line switch, and a power supply system capable of, even when an error occurs on either one of an external power source and a commercial power supply system, minimizing the influence given to the other.SOLUTION: A power line protection device 4 includes a transformer 43 which is connected to a primary side power line W5a connected to an external power source 2 having a secondary battery 21 and a secondary power line W3 connected to an emergency load 7 therebetween. The power line protection device 4 connects the primary side power line W5a to a primary winding 431 and connects the secondary power line W3 to a secondary winding 432 to thereby isolate the primary side power line W5a and the secondary power line W3 from each other. A power line switch 5 connects an emergency power line W4 to which the emergency load 7 is connected to either one of the secondary power line W3 and a branched power line W2A to which the commercial power is supplied while swishing therebetween. When the commercial power is supplied, the emergency power line W4 is connected to a branched power line W2A, and when the commercial power is not supplied, the emergency power line W4 is connected to the secondary power line W3.

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Inventors:
KANDA MASATAKA
UENO SATOSHI
YAMAGUCHI KENJI
Application Number:
JP2013076433A
Publication Date:
October 27, 2014
Filing Date:
April 01, 2013
Export Citation:
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Assignee:
PANASONIC CORP
International Classes:
H02H7/26
Domestic Patent References:
JP2011188607A2011-09-22
JPH08279331A1996-10-22
JP2012134152A2012-07-12
JP3171633U2011-11-10
JP2014073056A2014-04-21
JP2003250230A2003-09-05
JPH10201077A1998-07-31
JPH05188094A1993-07-27
JP2006158084A2006-06-15
Foreign References:
WO2012086645A12012-06-28
WO2011045925A12011-04-21
WO2006059762A12006-06-08
Attorney, Agent or Firm:
Yoshikiyo Nishikawa
Takeshi Sakaguchi
Hidetoshi Kitade
Haruki Nakaishi



 
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