Title:
VACUUM MEASURING METHOD FOR VACUUM INSULATED BREAKER DEVICE
Document Type and Number:
Japanese Patent JP3840872
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a vacuum insulated breaker device having high safety and a vacuum pressure monitoring and measuring function with enhanced reliability.
SOLUTION: A vacuum pressure measuring terminal 30 is installed on the side of a metal container 2 in a vacuum valve 1 structured by the grounded metal container 2. Reliability in monitoring and measuring the vacuum pressure can be enhanced by electrically separating a main circuit 13 from the measuring terminal 30 in this vacuum insulated switching device.
Inventors:
Morita Ayumu
Toru Tanimizu
Kenichi Natsui
Katsunori Kojima
Masakaji Tsuji
Toru Tanimizu
Kenichi Natsui
Katsunori Kojima
Masakaji Tsuji
Application Number:
JP2000081734A
Publication Date:
November 01, 2006
Filing Date:
March 18, 1999
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
G01L21/00; H01H33/66; H01H33/668; (IPC1-7): H01H33/66; G01L21/00
Domestic Patent References:
| JP60182623A | ||||
| JP49013727Y1 | ||||
| JP52055575A | ||||
| JP31005194B1 | ||||
| JP49041903B1 | ||||
| JP5215381A | ||||
| JP11285117A | ||||
| JP200040448A | ||||
| JP2000294088A |
Attorney, Agent or Firm:
Manabu Inoue
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