AU533221B2 - Safety device for emergency tripping - Google Patents

Safety device for emergency tripping

Info

Publication number
AU533221B2
AU533221B2 AU42219/78A AU4221978A AU533221B2 AU 533221 B2 AU533221 B2 AU 533221B2 AU 42219/78 A AU42219/78 A AU 42219/78A AU 4221978 A AU4221978 A AU 4221978A AU 533221 B2 AU533221 B2 AU 533221B2
Authority
AU
Australia
Prior art keywords
safety device
emergency tripping
tripping
emergency
safety
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
AU42219/78A
Other versions
AU4221978A (en
Inventor
Charles Engel And Michael Andrew Tomko Joseph
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 AU4221978A publication Critical patent/AU4221978A/en
Application granted granted Critical
Publication of AU533221B2 publication Critical patent/AU533221B2/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
    • H02H3/33—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
    • H02H3/334—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 with means to produce an artificial unbalance for other protection or monitoring reasons or remote control
    • H02H3/335—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 with means to produce an artificial unbalance for other protection or monitoring reasons or remote control the main function being self testing of the device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
    • 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
    • H02H3/334—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 with means to produce an artificial unbalance for other protection or monitoring reasons or remote control

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Breakers (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
AU42219/78A 1977-12-09 1978-12-05 Safety device for emergency tripping Expired AU533221B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US85899077A 1977-12-09 1977-12-09
USUS838990 1977-12-09

Publications (2)

Publication Number Publication Date
AU4221978A AU4221978A (en) 1979-06-14
AU533221B2 true AU533221B2 (en) 1983-11-10

Family

ID=25329694

Family Applications (1)

Application Number Title Priority Date Filing Date
AU42219/78A Expired AU533221B2 (en) 1977-12-09 1978-12-05 Safety device for emergency tripping

Country Status (11)

Country Link
JP (2) JPS5487833A (en)
AU (1) AU533221B2 (en)
BE (1) BE872643A (en)
BR (1) BR7807900A (en)
CA (1) CA1127747A (en)
ES (1) ES475803A1 (en)
FR (1) FR2411497A1 (en)
GB (1) GB2010496B (en)
IT (1) IT1107373B (en)
PH (1) PH20495A (en)
ZA (1) ZA786652B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2586137B1 (en) * 1985-08-06 1987-12-11 Merlin Gerin REMOTE OPENING OF A DIFFERENTIAL PROTECTION DEVICE, IN PARTICULAR OF A DIFFERENTIAL CONNECTION CIRCUIT BREAKER
EP0215969A1 (en) * 1985-09-21 1987-04-01 MOTORI ELETTRICI ROTOS S.p.A A ciruit arrangement for sensing, transmitting, and processing information of the occurrence of a variation in a parameter of AC electric equipment to be monitored
IL97694A0 (en) * 1991-03-27 1992-06-21 Amit Electronics & Engineering Device and method for gfci time response and ground test
US5396505A (en) * 1993-07-06 1995-03-07 Tandem Computers Incorporated Programmable error-checking matrix for digital communication system
ES2233185B1 (en) * 2003-07-18 2006-02-16 Emilio Haba Armero DEVICE FOR VERIFYING DIFFERENTIAL SWITCHES IN A LOW VOLTAGE INSTALLATION.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT308225B (en) * 1968-11-15 1973-06-25 Felten & Guilleaume Schaltanl Protective circuit for portable consumer devices connected to earthed networks
GB1337806A (en) * 1971-07-07 1973-11-21 Mcmillan R D Socket testers
JPS562311Y2 (en) * 1972-02-24 1981-01-19
JPS5018071B2 (en) * 1972-03-28 1975-06-26
US3898557A (en) * 1973-11-12 1975-08-05 Daltec Systems Inc Electrical device for testing a ground fault circuit interrupter

Also Published As

Publication number Publication date
GB2010496A (en) 1979-06-27
BR7807900A (en) 1979-07-31
GB2010496B (en) 1982-03-24
PH20495A (en) 1987-01-21
ES475803A1 (en) 1979-12-01
JPS57175542U (en) 1982-11-06
JPS5487833A (en) 1979-07-12
AU4221978A (en) 1979-06-14
BE872643A (en) 1979-06-08
IT7841680A0 (en) 1978-12-07
CA1127747A (en) 1982-07-13
ZA786652B (en) 1979-11-28
JPS6145696Y2 (en) 1986-12-23
IT1107373B (en) 1985-11-25
FR2411497A1 (en) 1979-07-06

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