DE2852317C2 - - Google Patents

Info

Publication number
DE2852317C2
DE2852317C2 DE19782852317 DE2852317A DE2852317C2 DE 2852317 C2 DE2852317 C2 DE 2852317C2 DE 19782852317 DE19782852317 DE 19782852317 DE 2852317 A DE2852317 A DE 2852317A DE 2852317 C2 DE2852317 C2 DE 2852317C2
Authority
DE
Germany
Prior art keywords
conductor
circuit breaker
phase
neutral conductor
safety device
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
DE19782852317
Other languages
German (de)
English (en)
Other versions
DE2852317A1 (de
Inventor
Joseph C. Monroeville Pa. Us Engel
Michael A. N.Huntingdon Pa. Us Tomko
Theodore M. Murrysville Pa. Us Heinrich
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
Priority claimed from US05/859,075 external-priority patent/US4164771A/en
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of DE2852317A1 publication Critical patent/DE2852317A1/de
Application granted granted Critical
Publication of DE2852317C2 publication Critical patent/DE2852317C2/de
Granted 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)
  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)
DE19782852317 1977-12-09 1978-12-04 Elektrische sicherheitseinrichtung zur schnellabschaltung eines elektrischen netzstromkreises Granted DE2852317A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US85899077A 1977-12-09 1977-12-09
US05/859,075 US4164771A (en) 1977-12-09 1977-12-09 Wireless emergency power interrupting system for multibranch circuits

Publications (2)

Publication Number Publication Date
DE2852317A1 DE2852317A1 (de) 1979-06-13
DE2852317C2 true DE2852317C2 (enrdf_load_stackoverflow) 1989-05-03

Family

ID=27127493

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782852317 Granted DE2852317A1 (de) 1977-12-09 1978-12-04 Elektrische sicherheitseinrichtung zur schnellabschaltung eines elektrischen netzstromkreises

Country Status (2)

Country Link
CH (1) CH642482A5 (enrdf_load_stackoverflow)
DE (1) DE2852317A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10143896C1 (de) * 2001-09-07 2003-03-06 Metabowerke Gmbh Elektrohandwerkszeug, insbesondere Bohrmaschine, mit Ableitstromsensorik

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT387111B (de) * 1985-01-18 1988-12-12 Zankel Franz Dipl Ing Fehlerstromschutzschalter
IT1320567B1 (it) * 2000-07-28 2003-12-10 Andrea Mele Dispositivo d'emergenza per l'interruzione dell'erogazione di energiaelettrica fornita da una rete di alimentazione.
FR2817978B1 (fr) * 2000-12-11 2003-01-10 Schneider Electric Ind Sa Interface de securite pour organes electriques
EP1276127A1 (de) * 2001-07-13 2003-01-15 ABB Schweiz AG Fehlerstromschutzgerät
ITTO20090326A1 (it) * 2009-04-24 2010-10-25 Sbardella Marco Dispositivo di sicurezza elettrica per gas infiammabili e/o esplosivi

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2504494A (en) * 1940-03-05 1950-04-18 Emi Ltd Transmission line seal for electron discharge devices
US3984765A (en) * 1974-09-27 1976-10-05 Rocci Jr Joseph A Power outlet circuit tester with ground fault testing capability
US4013929A (en) * 1975-04-14 1977-03-22 Square D Company Multiple duty components of a ground fault receptacle
DE2740744C2 (de) * 1977-09-09 1979-09-06 Siemens Ag, 1000 Berlin Und 8000 Muenchen Einrichtung zum Fernabschalten von Verbrauchern
GB2504494A (en) 2012-07-30 2014-02-05 Eaton Aerospace Ltd Phase loss or input voltage drop detection using common-mode voltage in rectified signal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10143896C1 (de) * 2001-09-07 2003-03-06 Metabowerke Gmbh Elektrohandwerkszeug, insbesondere Bohrmaschine, mit Ableitstromsensorik

Also Published As

Publication number Publication date
DE2852317A1 (de) 1979-06-13
CH642482A5 (en) 1984-04-13

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Legal Events

Date Code Title Description
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee