FR2423791A1 - DEVICE FOR CHECKING THE INSULATION OF A POWER SUPPLY LINE SWITCHED OFF IN UNDERGROUND MINES - Google Patents

DEVICE FOR CHECKING THE INSULATION OF A POWER SUPPLY LINE SWITCHED OFF IN UNDERGROUND MINES

Info

Publication number
FR2423791A1
FR2423791A1 FR7905069A FR7905069A FR2423791A1 FR 2423791 A1 FR2423791 A1 FR 2423791A1 FR 7905069 A FR7905069 A FR 7905069A FR 7905069 A FR7905069 A FR 7905069A FR 2423791 A1 FR2423791 A1 FR 2423791A1
Authority
FR
France
Prior art keywords
checking
insulation
power supply
supply line
underground mines
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7905069A
Other languages
French (fr)
Other versions
FR2423791B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of FR2423791A1 publication Critical patent/FR2423791A1/en
Application granted granted Critical
Publication of FR2423791B1 publication Critical patent/FR2423791B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/16—Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line
    • G01R27/18—Measuring resistance to earth, i.e. line to ground
    • 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)
  • Emergency Protection Circuit Devices (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

Dispositif pour le contrôle de l'isolation d'une ligne d'alimentation mise hors circuit d'une mine souterraine par application d'une tension de contrôle ainsi que détermination et interprétation du courant s'écoulant sous effet de la tension de contrôle. Pour le contrôle d'une ligne haute tension 8 on utilise un appareil de contrôle 10 pour l'application, limitée automatiquement dans le temps, d'une tension de contrôle comparable à la tension de service de la ligne haute tension 8 et pour la délivrance d'un signal bloquant la remise en circuit de cette ligne haute tension 8.Device for checking the insulation of a power supply line cut off from an underground mine by applying a test voltage as well as determining and interpreting the current flowing under the effect of the control voltage. For the control of a high voltage line 8, a control device 10 is used for the application, automatically limited in time, of a test voltage comparable to the operating voltage of the high voltage line 8 and for the delivery a signal blocking the reconnection of this high voltage line 8.

FR7905069A 1978-03-06 1979-02-27 DEVICE FOR CHECKING THE INSULATION OF A POWER SUPPLY LINE SWITCHED OFF IN UNDERGROUND MINES Granted FR2423791A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2810013A DE2810013C2 (en) 1978-03-06 1978-03-06 Arrangement for insulation testing in underground mining

Publications (2)

Publication Number Publication Date
FR2423791A1 true FR2423791A1 (en) 1979-11-16
FR2423791B1 FR2423791B1 (en) 1982-04-02

Family

ID=6033882

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7905069A Granted FR2423791A1 (en) 1978-03-06 1979-02-27 DEVICE FOR CHECKING THE INSULATION OF A POWER SUPPLY LINE SWITCHED OFF IN UNDERGROUND MINES

Country Status (4)

Country Link
BE (1) BE874612A (en)
DE (1) DE2810013C2 (en)
FR (1) FR2423791A1 (en)
GB (1) GB2015754B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3036470C2 (en) * 1980-09-25 1982-06-16 Siemens AG, 1000 Berlin und 8000 München Arrangement for testing the insulation of a high-voltage supply line laid underground in mining
DE3206598A1 (en) * 1982-02-19 1983-09-01 Siemens AG, 1000 Berlin und 8000 München Arrangement for measuring and monitoring asymmetries in rotating electrical induction machines
GB8513831D0 (en) * 1985-05-31 1985-07-03 Haines G J Testing cables
DE3634802A1 (en) * 1986-10-13 1988-04-21 Bbc Brown Boveri & Cie Arrangement for selective detection of a short to earth in the rotor circuit of an electric machine
DE4026799A1 (en) * 1990-08-24 1992-02-27 Licentia Gmbh Selective detection of faults in conductors in high voltage network - by comparing conductor voltages and currents with earth current and star earth voltage
DE10047548A1 (en) * 2000-09-22 2002-04-11 Hagenuk Kmt Kabelmestechnik Gm Method and device for determining the quality of a cable
GB0221993D0 (en) * 2002-09-21 2002-10-30 Autonomous Well Company The Electric submersible oil well pump communications

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2737067A1 (en) * 1976-08-17 1978-02-23 Bicc Ltd DEVICE FOR TESTING ELECTRICAL COMPONENTS, IN PARTICULAR ELECTRICAL CABLES

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2737067A1 (en) * 1976-08-17 1978-02-23 Bicc Ltd DEVICE FOR TESTING ELECTRICAL COMPONENTS, IN PARTICULAR ELECTRICAL CABLES

Also Published As

Publication number Publication date
GB2015754A (en) 1979-09-12
DE2810013B1 (en) 1979-09-13
FR2423791B1 (en) 1982-04-02
BE874612A (en) 1979-07-02
DE2810013C2 (en) 1980-05-22
GB2015754B (en) 1982-09-02

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Legal Events

Date Code Title Description
ST Notification of lapse