NO941149L - Device for detecting faults on underground electric power distribution network - Google Patents

Device for detecting faults on underground electric power distribution network

Info

Publication number
NO941149L
NO941149L NO941149A NO941149A NO941149L NO 941149 L NO941149 L NO 941149L NO 941149 A NO941149 A NO 941149A NO 941149 A NO941149 A NO 941149A NO 941149 L NO941149 L NO 941149L
Authority
NO
Norway
Prior art keywords
homopolar
detecting faults
electric power
power distribution
distribution network
Prior art date
Application number
NO941149A
Other languages
Norwegian (no)
Other versions
NO941149D0 (en
NO308758B1 (en
Inventor
Jean Bergeal
Jacques Raymongue
Original Assignee
Electricite De France
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
Application filed by Electricite De France filed Critical Electricite De France
Publication of NO941149D0 publication Critical patent/NO941149D0/en
Publication of NO941149L publication Critical patent/NO941149L/en
Publication of NO308758B1 publication Critical patent/NO308758B1/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/38—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current
    • H02H3/385—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current using at least one homopolar quantity
    • 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
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58—Testing of lines, cables or conductors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

Device for detecting faults on an electrical energy distribution underground network (1) including an electronic circuit (6) which receives a signal representing the homopolar voltage and a signal representing the homopolar current of the line to be monitored, the said electronic circuit carrying out detection of the transient variations in the homopolar current by comparing the sign of the homopolar current with that of the homopolar voltage, characterised in that the homopolar current sensor consists of one or more tori (2) and in that the voltage sensor consists of a capacitor (9) connected between the common terminal (8) of the capacitors (7) of a capacitive divider and earth. <IMAGE>
NO941149A 1992-07-31 1994-03-29 Device for detecting faults on underground electrical power distribution network NO308758B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9209550A FR2694409B1 (en) 1992-07-31 1992-07-31 Device for detecting faults on an underground electrical energy distribution network.
PCT/FR1993/000774 WO1994003954A1 (en) 1992-07-31 1993-07-28 Fault detection device on a buried electric power distribution network

Publications (3)

Publication Number Publication Date
NO941149D0 NO941149D0 (en) 1994-03-29
NO941149L true NO941149L (en) 1994-03-29
NO308758B1 NO308758B1 (en) 2000-10-23

Family

ID=9432527

Family Applications (1)

Application Number Title Priority Date Filing Date
NO941149A NO308758B1 (en) 1992-07-31 1994-03-29 Device for detecting faults on underground electrical power distribution network

Country Status (9)

Country Link
EP (1) EP0591011B1 (en)
AT (1) ATE149756T1 (en)
DE (1) DE69308446T2 (en)
DK (1) DK0591011T3 (en)
ES (1) ES2098695T3 (en)
FI (1) FI941479A (en)
FR (1) FR2694409B1 (en)
NO (1) NO308758B1 (en)
WO (1) WO1994003954A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR047212A1 (en) 2004-08-03 2006-01-11 Coesp Ltda Componentes Eletric METHOD FOR SECTIONING A HALF-POWERED ELECTRIC POWER DISTRIBUTION LINE WITH A SECTIONER THAT PRESENTS A PERTUBATION, HALF-POWERED ELECTRIC POWER DISTRIBUTION LINE SECTIONER FOR THE SAME AND ELECTRONIC CIRCUIT OF DETECTION OF A CURRENT FAILURE CURRENT
FR3026492B1 (en) 2014-09-29 2016-10-28 Schneider Electric Ind Sas DIRECTIONAL DETECTION OF EARTH FAULT IN AN ELECTRICAL DISTRIBUTION NETWORK
CN106932649B (en) * 2017-02-28 2019-10-01 上海交通大学 Three-phase overhead transmission line phase voltage method for self-calibrating based on series capacitance
CN109839564A (en) * 2019-03-13 2019-06-04 国家电网有限公司 A kind of DC ground fault simulation box and method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE74237T1 (en) * 1986-11-10 1992-04-15 Siemens Ag METHOD AND DEVICE FOR LOCATING AN EARTH FAULT IN A CONDUCTOR IN A THREE-PHASE SYSTEM.
FR2636434B1 (en) * 1988-09-09 1991-01-04 Alsthom Gec DEVICE FOR MEASURING THE VOLTAGES OF A THREE-PHASE INSTALLATION, PARTICULARLY OF THE SHIELDED TYPE
ATE131935T1 (en) * 1989-07-31 1996-01-15 Mitsui Petrochemical Ind ARRANGEMENT FOR MONITORING THE INSULATION DEGRADATION OF AN ELECTRICAL INSTALLATION

Also Published As

Publication number Publication date
WO1994003954A1 (en) 1994-02-17
DE69308446D1 (en) 1997-04-10
EP0591011A1 (en) 1994-04-06
NO941149D0 (en) 1994-03-29
EP0591011B1 (en) 1997-03-05
NO308758B1 (en) 2000-10-23
DE69308446T2 (en) 1997-06-19
ATE149756T1 (en) 1997-03-15
FR2694409B1 (en) 1994-10-21
FR2694409A1 (en) 1994-02-04
ES2098695T3 (en) 1997-05-01
DK0591011T3 (en) 1997-05-05
FI941479A0 (en) 1994-03-30
FI941479A (en) 1994-03-30

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Legal Events

Date Code Title Description
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