BE872644A - Systeme sans fil d'interruption de courant d'urgence pour circuits a plusieurs branchements - Google Patents

Systeme sans fil d'interruption de courant d'urgence pour circuits a plusieurs branchements

Info

Publication number
BE872644A
BE872644A BE192230A BE192230A BE872644A BE 872644 A BE872644 A BE 872644A BE 192230 A BE192230 A BE 192230A BE 192230 A BE192230 A BE 192230A BE 872644 A BE872644 A BE 872644A
Authority
BE
Belgium
Prior art keywords
current interruption
connection circuits
wireless emergency
interruption system
emergency current
Prior art date
Application number
BE192230A
Other languages
English (en)
French (fr)
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 BE872644A publication Critical patent/BE872644A/xx

Links

Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Breakers (AREA)
BE192230A 1977-12-09 1978-12-08 Systeme sans fil d'interruption de courant d'urgence pour circuits a plusieurs branchements BE872644A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/859,075 US4164771A (en) 1977-12-09 1977-12-09 Wireless emergency power interrupting system for multibranch circuits

Publications (1)

Publication Number Publication Date
BE872644A true BE872644A (fr) 1979-06-08

Family

ID=25329961

Family Applications (1)

Application Number Title Priority Date Filing Date
BE192230A BE872644A (fr) 1977-12-09 1978-12-08 Systeme sans fil d'interruption de courant d'urgence pour circuits a plusieurs branchements

Country Status (13)

Country Link
US (1) US4164771A (es)
JP (2) JPS5487832A (es)
KR (1) KR840001584B1 (es)
AU (1) AU532261B2 (es)
BE (1) BE872644A (es)
BR (1) BR7808004A (es)
CA (1) CA1126383A (es)
ES (1) ES475804A1 (es)
FR (1) FR2411498A1 (es)
GB (1) GB2010495B (es)
IT (1) IT1107388B (es)
PH (1) PH17557A (es)
ZA (1) ZA786651B (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29704168U1 (de) * 1997-03-07 1998-07-09 Siemens AG, 80333 München Fehlerstromschutzschalter für den Betrieb von Stromkreisen mit der Schutzart Nullung
US7400477B2 (en) 1998-08-24 2008-07-15 Leviton Manufacturing Co., Inc. Method of distribution of a circuit interrupting device with reset lockout and reverse wiring protection
US6459270B1 (en) * 2000-07-31 2002-10-01 The United States Of America As Represented By The Secretary Of The Navy Method for testing high voltage breakdown and leakage current of electrical cables
US20050002137A1 (en) * 2003-01-30 2005-01-06 Frantz Germain Circuit interrupting device with reset lockout and user load test to reset activation
US6937452B2 (en) * 2003-02-03 2005-08-30 Leviton Manufacturing Co., Inc. Reverse wiring detect in circuit interrupting devices
US8810983B2 (en) * 2009-04-01 2014-08-19 Asco Power Technologies, L.P. Power disconnect system and method
CA2988160A1 (en) * 2016-12-09 2018-06-09 Southwire Company, Llc Open neutral detector

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB250494A (en) * 1925-11-26 1926-04-15 Switchgear And Cowans Ltd Improvements in or relating to protective arrangements for electric distribution or supply systems
DE1538487B2 (de) * 1951-01-28 1972-11-02 Vorrichtung zur notausschaltung von fehlerstromschutzschaltern in mit nicht geerdeten netzen verbundenen anlagen
AT308225B (de) * 1968-11-15 1973-06-25 Felten & Guilleaume Schaltanl Schutzschaltung für an geerdete Netze angeschlossene ortsveränderliche Verbrauchsgeräte
US3611038A (en) * 1969-09-08 1971-10-05 Purex Corp Ltd Ground fault and high current responsive circuit breaker utilizing amplified signals
US3611035A (en) * 1970-06-08 1971-10-05 Rucker Co Ground fault protective system having grounded neutral protection
US3698111A (en) * 1971-02-08 1972-10-17 Pyramid Inc Document holder
US3713003A (en) * 1971-02-16 1973-01-23 Purex Corp Ltd Fault or leak detector
GB1337806A (en) * 1971-07-07 1973-11-21 Mcmillan R D Socket testers
JPS562311Y2 (es) * 1972-02-24 1981-01-19
US3898557A (en) * 1973-11-12 1975-08-05 Daltec Systems Inc Electrical device for testing a ground fault circuit interrupter
US3984765A (en) * 1974-09-27 1976-10-05 Rocci Jr Joseph A Power outlet circuit tester with ground fault testing capability

Also Published As

Publication number Publication date
ZA786651B (en) 1979-10-31
US4164771A (en) 1979-08-14
CA1126383A (en) 1982-06-22
BR7808004A (pt) 1979-07-31
JPS5487832A (en) 1979-07-12
JPS57175541U (es) 1982-11-06
AU532261B2 (en) 1983-09-22
PH17557A (en) 1984-09-27
KR840001584B1 (ko) 1984-10-08
IT7841681A0 (it) 1978-12-07
AU4221878A (en) 1979-06-14
IT1107388B (it) 1985-11-25
JPS6145695Y2 (es) 1986-12-23
GB2010495A (en) 1979-06-27
GB2010495B (en) 1982-03-24
FR2411498A1 (fr) 1979-07-06
ES475804A1 (es) 1980-02-01

Similar Documents

Publication Publication Date Title
FR2619477B1 (fr) Station de base pour systeme telephonique sans fil
DE3783684D1 (de) Steuerschaltung fuer induktorstrom.
NO171530C (no) Linjekoblingskrets for traadloes telefon
FR2406365B1 (fr) Autocommutateur pour un systeme de telecommunications
PT72954A (fr) Systeme de drainage urinaire exterieur
FR2405575B1 (fr) Circuit de protection pour regulateur de commutation
FR2472896B1 (fr) Systeme de commutation de telecommunications
FI822917A0 (fi) Anordning foer att paoverka en pao en vira avvattnad fiberbana
FR2529381B1 (fr) Systeme de commutation electrique sensible a une condition et procede pour le faire fonctionner
BE872644A (fr) Systeme sans fil d'interruption de courant d'urgence pour circuits a plusieurs branchements
BE872643A (fr) Systeme sans fil d'interruption de courant d'urgence
FR2503446B1 (fr) Commutateur miniature notamment pour circuit imprime
BE896365A (fr) Circuit de commutation.
GB8314205D0 (en) Traffic markers
IT8025333A0 (it) Impianto elettronico a rele' di commutazione di corrente per impiego ferroviario.
DK160031C (da) Radiotelefonanlaeg
FR2394952B1 (fr) Systeme de transfert de signaux pour centre de commutation temporelle
FR2519800B1 (fr) Circuit d'interruption pour courant alternatif
DE3268015D1 (en) Circuit arrangement for signalling alarms
DK160389C (da) Radiosystem
FR2345801A1 (fr) Dispositif de commutation pour circuits electriques
GB2130053B (en) Radio controlled switching devices
BE853818A (fr) Aiguillage de voie ferree
FR2521853B1 (fr) Pessaire intra-uterin
GB2003638B (en) Traffic signalling system

Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: WESTINGHOUSE ELECTRIC CORP.

Effective date: 19921231