Title:
DUAL POWER SUPPLY CHANGEOVER SWITCH WITH MECHANICAL TRIPPING INTERLOCK FUNCTION
Document Type and Number:
WIPO Patent Application WO/2017/215536
Kind Code:
A1
Abstract:
A dual power supply changeover switch with a mechanical tripping interlock function. A main power circuit breaker (2) is isolated from a backup power circuit breaker (5) by a mechanical tripping interlock mechanism (4). When one circuit breaker is connected, a mechanical tripping mechanism of another circuit breaker is triggered to be powered off due to the mechanical logic. When failures of a phase sequence, a default phase, an abnormal voltage and the like appear in a power supply under the power supply condition, electrified switching of the power supply can be achieved by means of mechanical tripping interlocking. By using the mechanical tripping interlocking, the off-off state can be maintained when the on-on state is being avoided; meanwhile, all power supplies are cut off.
Inventors:
WANG KECHENG (CN)
BAI JINJUN (CN)
SUN XIAODONG (CN)
BAI JINJUN (CN)
SUN XIAODONG (CN)
Application Number:
PCT/CN2017/087851
Publication Date:
December 21, 2017
Filing Date:
June 11, 2017
Export Citation:
Assignee:
TIANJIN JMT ELECTRIC EQUIPMENT CO LTD (CN)
International Classes:
H01H71/12; H01H9/26; H01H71/50
Foreign References:
| CN205828320U | 2016-12-21 | |||
| CN105895462A | 2016-08-24 | |||
| CN1848324A | 2006-10-18 | |||
| CN201087887Y | 2008-07-16 | |||
| CN204991544U | 2016-01-20 |
Attorney, Agent or Firm:
BEI&OCEAN (CN)
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