NZ188723A - Earth fault relay-line operated trip and reset circuit - Google Patents

Earth fault relay-line operated trip and reset circuit

Info

Publication number
NZ188723A
NZ188723A NZ188723A NZ18872378A NZ188723A NZ 188723 A NZ188723 A NZ 188723A NZ 188723 A NZ188723 A NZ 188723A NZ 18872378 A NZ18872378 A NZ 18872378A NZ 188723 A NZ188723 A NZ 188723A
Authority
NZ
New Zealand
Prior art keywords
reset circuit
earth fault
fault relay
line operated
operated trip
Prior art date
Application number
NZ188723A
Inventor
E J Haussermann
M R Marot
Original Assignee
Electrical Protection Co 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 Electrical Protection Co Ltd filed Critical Electrical Protection Co Ltd
Publication of NZ188723A publication Critical patent/NZ188723A/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
    • H02H3/02—Details
    • H02H3/027—Details with automatic disconnection after a predetermined time
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/06—Arrangements for supplying operative power
    • H02H1/063—Arrangements for supplying operative power primary power being supplied by fault current
    • 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)
  • Emergency Protection Circuit Devices (AREA)
NZ188723A 1977-10-21 1978-10-24 Earth fault relay-line operated trip and reset circuit NZ188723A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA00776276A ZA776276B (en) 1977-10-21 1977-10-21 Improvements in and relating to earth fault relays

Publications (1)

Publication Number Publication Date
NZ188723A true NZ188723A (en) 1981-07-13

Family

ID=25572172

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ188723A NZ188723A (en) 1977-10-21 1978-10-24 Earth fault relay-line operated trip and reset circuit

Country Status (5)

Country Link
AU (1) AU530808B2 (en)
GB (1) GB2006555B (en)
MW (1) MW3178A1 (en)
NZ (1) NZ188723A (en)
ZA (1) ZA776276B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8616833D0 (en) * 1986-07-10 1986-08-20 Delta Electrical Holdings Earth leakage protective circuit
DE102020216414A1 (en) 2020-12-21 2022-06-23 Siemens Aktiengesellschaft RCDs and procedures

Also Published As

Publication number Publication date
AU530808B2 (en) 1983-07-28
GB2006555B (en) 1982-04-07
ZA776276B (en) 1978-12-27
GB2006555A (en) 1979-05-02
MW3178A1 (en) 1980-03-12
AU4091578A (en) 1980-04-24

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