IT954999B - Dispositivo elettrico di sicurezza sensibile ai guasti di terra - Google Patents

Dispositivo elettrico di sicurezza sensibile ai guasti di terra

Info

Publication number
IT954999B
IT954999B IT23970/72A IT2397072A IT954999B IT 954999 B IT954999 B IT 954999B IT 23970/72 A IT23970/72 A IT 23970/72A IT 2397072 A IT2397072 A IT 2397072A IT 954999 B IT954999 B IT 954999B
Authority
IT
Italy
Prior art keywords
safety device
electrical safety
earth faults
device sensitive
sensitive
Prior art date
Application number
IT23970/72A
Other languages
English (en)
Original Assignee
Rucker Co
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 Rucker Co filed Critical Rucker Co
Application granted granted Critical
Publication of IT954999B publication Critical patent/IT954999B/it

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
    • H02H3/331—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 responsive to earthing of the neutral conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Protection Of Transformers (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Emergency Protection Circuit Devices (AREA)
IT23970/72A 1971-05-07 1972-05-05 Dispositivo elettrico di sicurezza sensibile ai guasti di terra IT954999B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14129771A 1971-05-07 1971-05-07

Publications (1)

Publication Number Publication Date
IT954999B true IT954999B (it) 1973-09-15

Family

ID=22495075

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23970/72A IT954999B (it) 1971-05-07 1972-05-05 Dispositivo elettrico di sicurezza sensibile ai guasti di terra

Country Status (7)

Country Link
US (1) US3836821A (it)
JP (1) JPS538899B1 (it)
CA (1) CA1005897A (it)
FR (1) FR2137591B1 (it)
GB (2) GB1397415A (it)
IT (1) IT954999B (it)
ZA (1) ZA722740B (it)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3953766A (en) * 1974-09-16 1976-04-27 General Electric Company Ground fault circuit interrupter and electronic module therefor
US4114089A (en) * 1975-03-21 1978-09-12 Rca Corporation Ground fault detecting apparatus including current-responsive threshold detection circuitry
US3963963A (en) * 1975-04-22 1976-06-15 Rca Corporation Ground-fault detection system
US3973171A (en) * 1975-05-19 1976-08-03 General Electric Company Ground fault circuit interrupting device with grounded neutral detection
CA1101533A (en) * 1976-04-08 1981-05-19 Raymond H. Legatti Ground fault system with noise immunity
US4263637A (en) * 1976-04-08 1981-04-21 Square D Company Ground fault receptacle
JPS55127827A (en) * 1979-03-26 1980-10-03 Matsushita Electric Works Ltd Leakage breaker
US4393431A (en) * 1980-04-23 1983-07-12 Mcgraw-Edison Company Overcurrent relay circuit
US4348709A (en) * 1980-12-15 1982-09-07 Mauk Ernest R Electronic load protection circuit
EP0116105A1 (en) * 1983-02-11 1984-08-22 Claude Sa Domestic power line breaker
JPS63124132U (it) * 1987-02-03 1988-08-12
US6814611B1 (en) 2003-04-14 2004-11-09 Henoc T. Torres Power surge protectorant electrical outlet assembly
US7656134B2 (en) * 2006-06-29 2010-02-02 Lybbert Justin B B-plus patch and voltage transient spike suppressor for an automotive voltage regulator
US7876539B2 (en) * 2006-10-23 2011-01-25 Pentair Pump Group, Inc. Electrical apparatus with current dampening device
US8018235B2 (en) * 2006-11-02 2011-09-13 Texas Instruments Incorporated Methods and apparatus to facilitate ground fault detection with a single coil and an oscillator
US9046555B2 (en) * 2011-12-19 2015-06-02 Tyco Safety Products Canada Ltd. Latching over-current protection circuit and method
US10054965B2 (en) * 2015-08-06 2018-08-21 Honeywell International Inc. Analog/digital input architecture having programmable analog output mode
FR3118334B1 (fr) * 2020-12-18 2022-12-23 Legrand France Appareil électrique de protection d’une installation électrique en courant alternatif

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE625173A (it) * 1962-11-22
US3259803A (en) * 1962-11-29 1966-07-05 Itt Electronic circuit breakers
US3213321A (en) * 1963-05-31 1965-10-19 Charles F Dalziel Miniature differential circuit breaker
US3392352A (en) * 1965-12-28 1968-07-09 Dickson Electronics Corp Time delay circuit
GB1152793A (en) * 1966-03-11 1969-05-21 Fuchs Electrical Ind Proprieta Improvements in and relating to Earth Leakage Protection Devices
US3407337A (en) * 1966-11-15 1968-10-22 Purex Corp Ltd Leak detector for swimming pool lights and the like
US3505566A (en) * 1967-08-02 1970-04-07 Ite Imperial Corp Ground relay system
US3506906A (en) * 1967-12-18 1970-04-14 Rucker Co Ground fault circuit interrupter with inadvertent ground sensor
FR1593690A (it) * 1968-11-27 1970-06-01
US3566189A (en) * 1969-03-18 1971-02-23 Airpax Electronics Circuit breaker with loosely coupled deenergizing means for high overload currents
US3558980A (en) * 1969-05-29 1971-01-26 Flo Root Inc Automatic ground fault circuit interrupter
US3611035A (en) * 1970-06-08 1971-10-05 Rucker Co Ground fault protective system having grounded neutral protection

Also Published As

Publication number Publication date
CA1005897A (en) 1977-02-22
FR2137591A1 (it) 1972-12-29
US3836821A (en) 1974-09-17
JPS4744050A (it) 1972-12-21
FR2137591B1 (it) 1975-08-29
ZA722740B (en) 1973-01-31
JPS538899B1 (it) 1978-04-01
GB1397414A (en) 1975-06-11
GB1397415A (en) 1975-06-11

Similar Documents

Publication Publication Date Title
IT954999B (it) Dispositivo elettrico di sicurezza sensibile ai guasti di terra
IT946207B (it) Dispositivo anti fecondativo
AT313189B (de) Baggervorrichtung
SE409342B (sv) Anordning for att forhindra stranderosion
CH523615A (de) Blitzschutzgerät
SE384952B (sv) Elektrisk anslutningsanordning
CH528067A (de) Freiluftbeständige Isoliereinrichtung
SE400426B (sv) Anordning for skydd av halvledare
AT314643B (de) Blitzschutzeinrichtung
CH543184A (de) Differentialschutzeinrichtung
CH487525A (de) Ueberspannungsschutzeinrichtung
SE388819B (sv) Hjullasningsskyddsanordning
SE380948B (sv) Elektrisk kopplingsanordning
SE394552B (sv) Explosionsseker kabelgenomforingsanordning
SE406998B (sv) Anordning vid distansskydd for en overforingsledning for elektrisk energi
AT309009B (de) Seilzugsvorrichtung
SE395600B (sv) Anordning vid blixtlas
AT312866B (de) Seilzugvorrichtung
AT335859B (de) Gleitschutzvorrichtung
IT971532B (it) Perfezionamenti ai dispositivi semiconduttori
SU424272A1 (it)
AT347803B (de) Gleitschutzvorrichtung
SU520940A3 (ru) Защитно-запальное устройство
BE761455A (nl) Electrische verbindingsinrichting
IT943872B (it) Dispositivo generatore di segnali rettangolari