IN173042B - - Google Patents

Info

Publication number
IN173042B
IN173042B IN502CA1989A IN173042B IN 173042 B IN173042 B IN 173042B IN 502CA1989 A IN502CA1989 A IN 502CA1989A IN 173042 B IN173042 B IN 173042B
Authority
IN
India
Application number
Other languages
English (en)
Inventor
Jun Ozawa
Fumihiro Endo
Yoichi Oshita
Izumi Yamada
Tokio Yamagiwa
Hiroshi Yamada
Mitsuo Sawairi
Hajime Nagai
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=14696630&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IN173042(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to IN502CA1989 priority Critical patent/IN173042B/en
Publication of IN173042B publication Critical patent/IN173042B/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
    • H02H1/0015—Using arc detectors
    • H02H1/0023—Using arc detectors sensing non electrical parameters, e.g. by optical, pneumatic, thermal or sonic sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/142—Arrangements for simultaneous measurements of several parameters employing techniques covered by groups G01R15/14 - G01R15/26
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
    • G01R31/1254—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of gas-insulated power appliances or vacuum gaps
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H02B13/065—Means for detecting or reacting to mechanical or electrical defects
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/0015—Means for testing or for inspecting contacts, e.g. wear indicator
    • H01H2001/0021—Camera or endoscope for monitoring contacts, their position or mechanism

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Testing Relating To Insulation (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Housings And Mounting Of Transformers (AREA)
IN502CA1989 1988-05-16 1989-06-27 IN173042B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IN502CA1989 IN173042B (zh) 1988-05-16 1989-06-27

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63116828A JPH0738011B2 (ja) 1988-05-16 1988-05-16 高圧電力機器の異常診断システム
IN502CA1989 IN173042B (zh) 1988-05-16 1989-06-27

Publications (1)

Publication Number Publication Date
IN173042B true IN173042B (zh) 1994-01-29

Family

ID=14696630

Family Applications (1)

Application Number Title Priority Date Filing Date
IN502CA1989 IN173042B (zh) 1988-05-16 1989-06-27

Country Status (9)

Country Link
US (1) US5107447A (zh)
EP (1) EP0342597B1 (zh)
JP (3) JPH0738011B2 (zh)
KR (1) KR0148342B1 (zh)
CN (1) CN1026438C (zh)
AU (1) AU611800B2 (zh)
DE (1) DE68920198T2 (zh)
IN (1) IN173042B (zh)
SA (1) SA89100006B1 (zh)

Families Citing this family (155)

* Cited by examiner, † Cited by third party
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EP0342597B1 (en) 1994-12-28
JPH0738011B2 (ja) 1995-04-26
US5107447A (en) 1992-04-21
JPH10185980A (ja) 1998-07-14
DE68920198D1 (de) 1995-02-09
JP2885223B2 (ja) 1999-04-19
JP2751834B2 (ja) 1998-05-18
EP0342597A2 (en) 1989-11-23
KR890017543A (ko) 1989-12-16
CN1026438C (zh) 1994-11-02
DE68920198T2 (de) 1995-05-11
AU611800B2 (en) 1991-06-20
JPH0749362A (ja) 1995-02-21
AU3485789A (en) 1990-02-01
SA89100006B1 (ar) 1996-07-17
JPH01287475A (ja) 1989-11-20
CN1039659A (zh) 1990-02-14
KR0148342B1 (ko) 1998-12-01
EP0342597A3 (en) 1990-12-19

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