ZA704647B - Ground leakage relay circuit - Google Patents

Ground leakage relay circuit

Info

Publication number
ZA704647B
ZA704647B ZA704647A ZA704647A ZA704647B ZA 704647 B ZA704647 B ZA 704647B ZA 704647 A ZA704647 A ZA 704647A ZA 704647 A ZA704647 A ZA 704647A ZA 704647 B ZA704647 B ZA 704647B
Authority
ZA
South Africa
Prior art keywords
relay circuit
ground leakage
leakage relay
ground
circuit
Prior art date
Application number
ZA704647A
Other languages
English (en)
Inventor
A Morris
Original Assignee
Hubbell Inc Harvey
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 Hubbell Inc Harvey filed Critical Hubbell Inc Harvey
Publication of ZA704647B publication Critical patent/ZA704647B/xx

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
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • 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
    • H02H3/26—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/33—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electronic Switches (AREA)
ZA704647A 1969-08-22 1970-07-06 Ground leakage relay circuit ZA704647B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85652369A 1969-08-22 1969-08-22

Publications (1)

Publication Number Publication Date
ZA704647B true ZA704647B (en) 1971-03-31

Family

ID=25323842

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA704647A ZA704647B (en) 1969-08-22 1970-07-06 Ground leakage relay circuit

Country Status (4)

Country Link
AU (1) AU1768770A (fr)
DE (1) DE2036134A1 (fr)
FR (1) FR2059627A1 (fr)
ZA (1) ZA704647B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54135331A (en) * 1978-04-11 1979-10-20 Mitsubishi Electric Corp Ground fault detector
EP0177879A3 (fr) * 1984-10-06 1987-08-19 WIK Elektro-Hausgeräte-Vertriebsgesellschaft mbH & Co. Produktions-Kommanditgesellschaft Circuit sensible aux courants de défaut
CN118091486B (zh) * 2024-04-18 2024-06-28 山东云开电力有限公司 一种电力开关柜状态监测系统

Also Published As

Publication number Publication date
FR2059627A1 (fr) 1971-06-04
DE2036134A1 (de) 1971-02-25
AU1768770A (en) 1972-01-20

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