IT1107373B - ELECTRIC CIRCUIT EMERGENCY INTERRUPTION SYSTEM - Google Patents

ELECTRIC CIRCUIT EMERGENCY INTERRUPTION SYSTEM

Info

Publication number
IT1107373B
IT1107373B IT41680/78A IT4168078A IT1107373B IT 1107373 B IT1107373 B IT 1107373B IT 41680/78 A IT41680/78 A IT 41680/78A IT 4168078 A IT4168078 A IT 4168078A IT 1107373 B IT1107373 B IT 1107373B
Authority
IT
Italy
Prior art keywords
electric circuit
interruption system
emergency interruption
circuit emergency
electric
Prior art date
Application number
IT41680/78A
Other languages
Italian (it)
Other versions
IT7841680A0 (en
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 IT7841680A0 publication Critical patent/IT7841680A0/en
Application granted granted Critical
Publication of IT1107373B publication Critical patent/IT1107373B/en

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)
IT41680/78A 1977-12-09 1978-12-07 ELECTRIC CIRCUIT EMERGENCY INTERRUPTION SYSTEM IT1107373B (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
IT7841680A0 IT7841680A0 (en) 1978-12-07
IT1107373B true IT1107373B (en) 1985-11-25

Family

ID=25329694

Family Applications (1)

Application Number Title Priority Date Filing Date
IT41680/78A IT1107373B (en) 1977-12-09 1978-12-07 ELECTRIC CIRCUIT EMERGENCY INTERRUPTION SYSTEM

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
ZA786652B (en) 1979-11-28
GB2010496B (en) 1982-03-24
JPS57175542U (en) 1982-11-06
AU4221978A (en) 1979-06-14
FR2411497A1 (en) 1979-07-06
BE872643A (en) 1979-06-08
ES475803A1 (en) 1979-12-01
BR7807900A (en) 1979-07-31
CA1127747A (en) 1982-07-13
IT7841680A0 (en) 1978-12-07
JPS6145696Y2 (en) 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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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19941230