CA1127747A - Wireless emergency power interrupting system - Google Patents

Wireless emergency power interrupting system

Info

Publication number
CA1127747A
CA1127747A CA313,708A CA313708A CA1127747A CA 1127747 A CA1127747 A CA 1127747A CA 313708 A CA313708 A CA 313708A CA 1127747 A CA1127747 A CA 1127747A
Authority
CA
Canada
Prior art keywords
circuit
ground fault
ground
conductor
switch
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
CA313,708A
Other languages
English (en)
French (fr)
Inventor
Joseph C. Engel
Michael A. Tomko
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.)
Westinghouse Electric 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
Application granted granted Critical
Publication of CA1127747A publication Critical patent/CA1127747A/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 imbalance 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 imbalance 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 imbalance 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)
CA313,708A 1977-12-09 1978-10-18 Wireless emergency power interrupting system Expired CA1127747A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US85899077A 1977-12-09 1977-12-09
US858,990 1977-12-09

Publications (1)

Publication Number Publication Date
CA1127747A true CA1127747A (en) 1982-07-13

Family

ID=25329694

Family Applications (1)

Application Number Title Priority Date Filing Date
CA313,708A Expired CA1127747A (en) 1977-12-09 1978-10-18 Wireless emergency power interrupting system

Country Status (11)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5396505A (en) * 1993-07-06 1995-03-07 Tandem Computers Incorporated Programmable error-checking matrix for digital communication system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2586137B1 (fr) * 1985-08-06 1987-12-11 Merlin Gerin Telecommande d'ouverture d'un dispositif de protection differentielle, notamment d'un disjoncteur differentiel de branchement
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
ES2233185B1 (es) * 2003-07-18 2006-02-16 Emilio Haba Armero Dispositivo para verificacion de interruptores diferenciales en una instalacion de baja tension.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT308225B (de) * 1968-11-15 1973-06-25 Felten & Guilleaume Schaltanl Schutzschaltung für an geerdete Netze angeschlossene ortsveränderliche Verbrauchsgeräte
GB1337806A (en) * 1971-07-07 1973-11-21 Mcmillan R D Socket testers
JPS562311Y2 (enrdf_load_html_response) * 1972-02-24 1981-01-19
JPS5018071B2 (enrdf_load_html_response) * 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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5396505A (en) * 1993-07-06 1995-03-07 Tandem Computers Incorporated Programmable error-checking matrix for digital communication system

Also Published As

Publication number Publication date
PH20495A (en) 1987-01-21
IT7841680A0 (it) 1978-12-07
ZA786652B (en) 1979-11-28
BR7807900A (pt) 1979-07-31
JPS6145696Y2 (enrdf_load_html_response) 1986-12-23
GB2010496B (en) 1982-03-24
FR2411497A1 (fr) 1979-07-06
AU533221B2 (en) 1983-11-10
BE872643A (fr) 1979-06-08
ES475803A1 (es) 1979-12-01
IT1107373B (it) 1985-11-25
JPS57175542U (enrdf_load_html_response) 1982-11-06
GB2010496A (en) 1979-06-27
AU4221978A (en) 1979-06-14
JPS5487833A (en) 1979-07-12

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Legal Events

Date Code Title Description
MKEX Expiry