GB1549313A - Control unit for earth leakage detection - Google Patents

Control unit for earth leakage detection

Info

Publication number
GB1549313A
GB1549313A GB653576A GB653576A GB1549313A GB 1549313 A GB1549313 A GB 1549313A GB 653576 A GB653576 A GB 653576A GB 653576 A GB653576 A GB 653576A GB 1549313 A GB1549313 A GB 1549313A
Authority
GB
United Kingdom
Prior art keywords
control unit
leakage detection
earth leakage
earth
detection
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.)
Expired
Application number
GB653576A
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.)
WINDAK Ltd
Original Assignee
WINDAK 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
Application filed by WINDAK Ltd filed Critical WINDAK Ltd
Priority to GB653576A priority Critical patent/GB1549313A/en
Publication of GB1549313A publication Critical patent/GB1549313A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
    • H02H7/226—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices for wires or cables, e.g. heating wires
    • 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)
GB653576A 1977-02-10 1977-02-10 Control unit for earth leakage detection Expired GB1549313A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB653576A GB1549313A (en) 1977-02-10 1977-02-10 Control unit for earth leakage detection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB653576A GB1549313A (en) 1977-02-10 1977-02-10 Control unit for earth leakage detection

Publications (1)

Publication Number Publication Date
GB1549313A true GB1549313A (en) 1979-08-01

Family

ID=9816275

Family Applications (1)

Application Number Title Priority Date Filing Date
GB653576A Expired GB1549313A (en) 1977-02-10 1977-02-10 Control unit for earth leakage detection

Country Status (1)

Country Link
GB (1) GB1549313A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995006349A1 (en) * 1993-08-24 1995-03-02 Metal Manufactures Limited Load control module
CN109443652A (en) * 2018-12-16 2019-03-08 山西汾西重工有限责任公司 Deep-sea aircraft promotes mainly motor water pressure test leak water detdction circuit and detection method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995006349A1 (en) * 1993-08-24 1995-03-02 Metal Manufactures Limited Load control module
US5721657A (en) * 1993-08-24 1998-02-24 Metal Manufactures Limited Load control module
CN109443652A (en) * 2018-12-16 2019-03-08 山西汾西重工有限责任公司 Deep-sea aircraft promotes mainly motor water pressure test leak water detdction circuit and detection method
CN109443652B (en) * 2018-12-16 2024-04-26 山西汾西重工有限责任公司 Water leakage detection circuit and detection method for hydraulic test of main thrust motor of deep sea aircraft

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee