ZA786652B - Wireless emergency power interrupting system - Google Patents

Wireless emergency power interrupting system

Info

Publication number
ZA786652B
ZA786652B ZA00786652A ZA786652A ZA786652B ZA 786652 B ZA786652 B ZA 786652B ZA 00786652 A ZA00786652 A ZA 00786652A ZA 786652 A ZA786652 A ZA 786652A ZA 786652 B ZA786652 B ZA 786652B
Authority
ZA
South Africa
Prior art keywords
emergency power
wireless emergency
power interrupting
interrupting system
wireless
Prior art date
Application number
ZA00786652A
Other languages
English (en)
Inventor
J Engel
M Tomko
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 ZA786652B publication Critical patent/ZA786652B/xx

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)
ZA00786652A 1977-12-09 1978-11-27 Wireless emergency power interrupting system ZA786652B (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ZA786652B true ZA786652B (en) 1979-11-28

Family

ID=25329694

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00786652A ZA786652B (en) 1977-12-09 1978-11-27 Wireless emergency power interrupting system

Country Status (11)

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

Families Citing this family (5)

* 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
US5396505A (en) * 1993-07-06 1995-03-07 Tandem Computers Incorporated Programmable error-checking matrix for digital communication system
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 (it) * 1972-02-24 1981-01-19
JPS5018071B2 (it) * 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
GB2010496B (en) 1982-03-24
IT1107373B (it) 1985-11-25
JPS57175542U (it) 1982-11-06
AU4221978A (en) 1979-06-14
FR2411497A1 (fr) 1979-07-06
BE872643A (fr) 1979-06-08
ES475803A1 (es) 1979-12-01
BR7807900A (pt) 1979-07-31
CA1127747A (en) 1982-07-13
IT7841680A0 (it) 1978-12-07
JPS6145696Y2 (it) 1986-12-23
GB2010496A (en) 1979-06-27
JPS5487833A (en) 1979-07-12
PH20495A (en) 1987-01-21
AU533221B2 (en) 1983-11-10

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