Title:
HIGH-PARAMETER INDOOR HIGH-VOLTAGE ISOLATION SWITCH
Document Type and Number:
WIPO Patent Application WO/2021/073047
Kind Code:
A1
Abstract:
Disclosed is a high-parameter indoor high-voltage isolation switch, comprising a mounting base frame, a drive device, and at least one conductive unit, wherein each of the conductive units are turned on or off synchronously by means of the drive device. Each conductive unit comprises a moving contact and a static contact, the moving contact and the static contact being respectively mounted at two sides of the mounting base frame by means of insulating posts; a knife-type contact, one end of the knife-type contact being in hinge connection with the moving contact, the drive device being connected to the knife-type contact by means of a transmission device so as to drive the knife-type contact to rotate, and the static contact being located in the rotation path of the other end of the knife-type contact so as to form an opening and closing gate mechanism; and a locking device disposed on the knife-type contact for increasing the contact pressure between the knife-type contact and the static contact. The switch has excellent stability and reliability, an extremely high short-circuit current and a high current class. There is excellent contact pressure between the knife-type contact and the static contact, such that the knife-type contact and the static contact have electrically conductive contact. The present invention is applied to high-voltage line equipment.
Inventors:
CHEN PING (CN)
WU QIGANG (CN)
YU JUN (CN)
WU SHANG (CN)
WANG LINQUAN (CN)
WU QIGANG (CN)
YU JUN (CN)
WU SHANG (CN)
WANG LINQUAN (CN)
Application Number:
PCT/CN2020/081677
Publication Date:
April 22, 2021
Filing Date:
March 27, 2020
Export Citation:
Assignee:
CHANGGAO ELECTRIC GROUP CO LTD (CN)
HUNAN CHANGGAO HIGH VOLTAGE SWITCHGEAR CO LTD (CN)
HUNAN CHANGGAO HIGH VOLTAGE SWITCHGEAR CO LTD (CN)
International Classes:
H01H31/02
Foreign References:
| CN110739174A | 2020-01-31 | |||
| CN2777733Y | 2006-05-03 | |||
| CN2857192Y | 2007-01-10 | |||
| CN205248172U | 2016-05-18 | |||
| CN202307663U | 2012-07-04 | |||
| CN102568880A | 2012-07-11 | |||
| CN106373820A | 2017-02-01 | |||
| US3356815A | 1967-12-05 |
Attorney, Agent or Firm:
JIAQUAN IP LAW FIRM (CN)
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