Title:
FAULT-POINT-LOCATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/217275
Kind Code:
A1
Abstract:
A fault-point-locating device (1) locates a fault point in a gas-insulated switchgear having a first tank housing a circuit breaker of a first phase, a second tank housing a circuit breaker of a second phase, and a third tank housing a circuit breaker of a third phase. The fault-point-locating device is provided with: a measurement unit (7) for measuring the respective waveform of currents flowing between each of the first tank, the second tank, and the third tank, and a ground pole to which the first tank, the second tank, and the third tank are connected; and a locating processing unit (8) for executing, on the basis of the result of measuring the respective waveform of the currents, a process for locating a fault point in the first tank, the second tank, or the third tank.
Inventors:
TAMURA YOSHIYUKI (JP)
Application Number:
PCT/JP2019/017021
Publication Date:
October 29, 2020
Filing Date:
April 22, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02B13/065; H02B3/00; H02B13/035
Foreign References:
| JP2001314009A | 2001-11-09 | |||
| JPH02183928A | 1990-07-18 | |||
| JPH06313776A | 1994-11-08 | |||
| JPH0879923A | 1996-03-22 | |||
| JPH1141782A | 1999-02-12 | |||
| JP2002131366A | 2002-05-09 | |||
| JPH0823628A | 1996-01-23 | |||
| JPH0879923A | 1996-03-22 |
Other References:
See also references of EP 3961832A4
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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