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CH579840A5 - - Google Patents

Info

Publication number
CH579840A5
CH579840A5 CH1518474A CH1518474A CH579840A5 CH 579840 A5 CH579840 A5 CH 579840A5 CH 1518474 A CH1518474 A CH 1518474A CH 1518474 A CH1518474 A CH 1518474A CH 579840 A5 CH579840 A5 CH 579840A5
Authority
CH
Switzerland
Application number
CH1518474A
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Priority to CH1518474A priority Critical patent/CH579840A5/xx
Priority to DE19742458530 priority patent/DE2458530C2/en
Priority to FR7534093A priority patent/FR2291633A1/en
Priority to NL7513203A priority patent/NL7513203A/en
Publication of CH579840A5 publication Critical patent/CH579840A5/xx

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
    • G01R31/34—Testing dynamo-electric machines
    • G01R31/346—Testing of armature or field windings
    • 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
    • H02H3/16—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 fault current to earth, frame or mass
    • H02H3/17—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 fault current to earth, frame or mass by means of an auxiliary voltage injected into the installation to be protected

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Emergency Protection Circuit Devices (AREA)
CH1518474A 1974-11-14 1974-11-14 CH579840A5 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CH1518474A CH579840A5 (en) 1974-11-14 1974-11-14
DE19742458530 DE2458530C2 (en) 1974-11-14 1974-12-11 Earth fault monitoring device
FR7534093A FR2291633A1 (en) 1974-11-14 1975-11-07 Earth fault detection circuit using low frequency bias voltage - includes logic equipment and filters for monitoring leakage currents
NL7513203A NL7513203A (en) 1974-11-14 1975-11-11 DEVICE FOR ESTABLISHING EARTH CONNECTIONS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1518474A CH579840A5 (en) 1974-11-14 1974-11-14

Publications (1)

Publication Number Publication Date
CH579840A5 true CH579840A5 (en) 1976-09-15

Family

ID=4407066

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1518474A CH579840A5 (en) 1974-11-14 1974-11-14

Country Status (4)

Country Link
CH (1) CH579840A5 (en)
DE (1) DE2458530C2 (en)
FR (1) FR2291633A1 (en)
NL (1) NL7513203A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2558264B1 (en) * 1984-01-18 1986-08-29 Forclum METHOD FOR MONITORING THE ISOLATION STATE OF CONDUCTORS OF AN ELECTRICAL NETWORK
DE9006605U1 (en) * 1990-06-12 1990-08-16 Brinkmann, Heinz-Jürgen, 4322 Sprockhövel Circuit monitoring on movable closing edges
DE9210351U1 (en) * 1992-07-31 1992-10-01 Siemens AG, 8000 München Rotor earth fault monitoring device
DE4329381A1 (en) * 1993-09-01 1995-03-02 Abb Management Ag Method for detecting earth faults on the conductors of an electrical machine
DE4339946A1 (en) * 1993-11-24 1995-06-01 Walther Bender Gmbh & Co Kg Di Method and device for monitoring the insulation of unearthed direct and alternating current networks
DE69740111D1 (en) * 1996-04-01 2011-03-10 Lockheed Corp Optical system with combined laser / FLIR
AT411937B (en) * 2000-08-11 2004-07-26 Adaptive Regelsysteme Ges M B METHOD AND DEVICE FOR DETECTING AND LOCATING HIGH-RESISTANCE SINGLE-POLE EARTH ERRORS
DE102008005687A1 (en) * 2008-01-23 2009-08-06 Siemens Aktiengesellschaft Control device for safe reconnection of a residual current circuit breaker
US11539200B2 (en) 2018-03-16 2022-12-27 Littelfuse, Inc. Monitor device, ground fault protection circuit and techniques
US11108222B2 (en) 2018-03-16 2021-08-31 Littelfuse, Inc. Monitor device, ground fault protection circuit and techniques

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1125529B (en) * 1960-05-10 1962-03-15 Siemens Ag Selective earth fault protection
FR1445625A (en) * 1965-05-31 1966-07-15 Comp Generale Electricite Method for detecting and locating insulation faults in electrical networks and device for its implementation
DE2115807C3 (en) * 1971-04-01 1974-10-17 Siemens Ag, 1000 Berlin Und 8000 Muenchen Earth fault protection device for electrical devices with star-connected windings

Also Published As

Publication number Publication date
FR2291633B1 (en) 1982-04-02
DE2458530A1 (en) 1976-05-20
NL7513203A (en) 1976-05-18
FR2291633A1 (en) 1976-06-11
DE2458530C2 (en) 1986-11-06

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Legal Events

Date Code Title Description
PL Patent ceased
PL Patent ceased