AU467752B2 - Electrical apparatus with ground fault detector with variable trip device - Google Patents

Electrical apparatus with ground fault detector with variable trip device

Info

Publication number
AU467752B2
AU467752B2 AU44766/72A AU4476672A AU467752B2 AU 467752 B2 AU467752 B2 AU 467752B2 AU 44766/72 A AU44766/72 A AU 44766/72A AU 4476672 A AU4476672 A AU 4476672A AU 467752 B2 AU467752 B2 AU 467752B2
Authority
AU
Australia
Prior art keywords
ground fault
electrical apparatus
fault detector
trip device
variable trip
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
AU44766/72A
Other versions
AU4476672A (en
Inventor
BARNABAS BRENNEN GUIDO WATSON and JOHN THOMAS WILSON MICHEAL
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of AU4476672A publication Critical patent/AU4476672A/en
Application granted granted Critical
Publication of AU467752B2 publication Critical patent/AU467752B2/en
Expired legal-status Critical Current

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
    • H02H3/26—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
    • H02H3/34—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 of a three-phase system
    • H02H3/347—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 of a three-phase system using summation current transformers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Breakers (AREA)
AU44766/72A 1971-08-30 1972-07-20 Electrical apparatus with ground fault detector with variable trip device Expired AU467752B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US17588071A 1971-08-30 1971-08-30
US17611471A 1971-08-30 1971-08-30
USUS175880 1971-08-30
USUS176114 1971-08-30

Publications (2)

Publication Number Publication Date
AU4476672A AU4476672A (en) 1974-02-07
AU467752B2 true AU467752B2 (en) 1975-12-11

Family

ID=26871657

Family Applications (1)

Application Number Title Priority Date Filing Date
AU44766/72A Expired AU467752B2 (en) 1971-08-30 1972-07-20 Electrical apparatus with ground fault detector with variable trip device

Country Status (4)

Country Link
JP (1) JPS4839943A (en)
AU (1) AU467752B2 (en)
DE (1) DE2242216A1 (en)
GB (1) GB1394455A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5023630U (en) * 1973-06-27 1975-03-17
JPS54152938U (en) * 1978-04-15 1979-10-24
US4163848A (en) * 1978-08-08 1979-08-07 Ciba-Geigy Corporation Process for the production of 2-alkyl- or cycloalkyl-4-methyl-6-hydroxypyrimidines
AT385155B (en) * 1984-08-10 1988-02-25 Schrack Elektronik Ag CIRCUIT ARRANGEMENT FOR CONTROLLING A MAINS SWITCHING DEVICE
US4935516A (en) * 1988-01-29 1990-06-19 Ube Industries, Ltd. Process for preparing 4-hydroxypyrimidine
CN106597190B (en) * 2016-11-21 2023-07-18 中车大连电力牵引研发中心有限公司 Grounding detection circuit and method
CN112034283B (en) * 2020-08-19 2023-04-07 重庆尚翔电气技术有限公司 Device, system and process for detecting and positioning aluminum electrolysis cell ground fault

Also Published As

Publication number Publication date
JPS4839943A (en) 1973-06-12
GB1394455A (en) 1975-05-14
DE2242216A1 (en) 1973-03-08
AU4476672A (en) 1974-02-07

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