GB1359714A - Earth leakage protective arrangements - Google Patents

Earth leakage protective arrangements

Info

Publication number
GB1359714A
GB1359714A GB3453871A GB3453871A GB1359714A GB 1359714 A GB1359714 A GB 1359714A GB 3453871 A GB3453871 A GB 3453871A GB 3453871 A GB3453871 A GB 3453871A GB 1359714 A GB1359714 A GB 1359714A
Authority
GB
United Kingdom
Prior art keywords
earth leakage
leakage protective
protective arrangements
july
trip coil
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
GB3453871A
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.)
Siemens AG
Original Assignee
Siemens AG
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 DE19702036497 external-priority patent/DE2036497C3/en
Application filed by Siemens AG filed Critical Siemens AG
Publication of GB1359714A publication Critical patent/GB1359714A/en
Expired 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
    • H02H3/332—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 responsive to dc component in the fault current

Abstract

1359714 Protective arrangements SIEMENS AG 22 July 1971 [23 July 1970] 34538/71 Heading H2K An earth leakage protective arrangement comprises a circuit-breaker having a latch 10 released by a tripping device 8 which has a trip coil 9 connected to the secondary winding 5 of a differential transformer 3, with a capacitor 6 or 7 connected so as to provide with the trip coil 9 and the winding 5 an oscillation circuit arranged to resonate at the frequency of a pulsating unidirectional directional earth leakage current such as might occur from the A.C. supply circuit to a thyristor-controlled D.C. motor.
GB3453871A 1970-07-23 1971-07-22 Earth leakage protective arrangements Expired GB1359714A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702036497 DE2036497C3 (en) 1970-07-23 Residual current circuit breaker r

Publications (1)

Publication Number Publication Date
GB1359714A true GB1359714A (en) 1974-07-10

Family

ID=5777593

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3453871A Expired GB1359714A (en) 1970-07-23 1971-07-22 Earth leakage protective arrangements

Country Status (7)

Country Link
JP (1) JPS561012B1 (en)
AT (1) AT318052B (en)
BE (1) BE770327A (en)
CH (1) CH532855A (en)
DK (1) DK134374C (en)
FR (1) FR2099548B1 (en)
GB (1) GB1359714A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8699190B2 (en) 2010-11-23 2014-04-15 Vacuumschmelze Gmbh & Co. Kg Soft magnetic metal strip for electromechanical components

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49101847A (en) * 1973-01-31 1974-09-26
DE2348881C3 (en) * 1973-09-28 1980-10-16 Siemens Ag, 1000 Berlin Und 8000 Muenchen Residual current circuit breaker
DE2429446A1 (en) * 1974-06-19 1976-01-02 Siemens Ag ADDITIONAL PART FOR FAULT CURRENT CIRCUIT BREAKERS FOR NIGHTLY RETROFITTING
JPS54639U (en) * 1977-03-04 1979-01-05
FR2422276A1 (en) * 1978-04-07 1979-11-02 Saparel EARTH FAULT CURRENT PROTECTION DEVICE
AT372549B (en) * 1980-04-16 1983-10-25 Felten & Guilleaume Ag Oester Fault current protection switch without summation current transformer
FR2481851A1 (en) * 1980-04-30 1981-11-06 Merlin Gerin DEVICE FOR DIFFERENTIAL PROTECTION SENSITIVE TO A UNIDIRECTIONAL CURRENT
DE3202320A1 (en) * 1982-01-26 1983-07-28 Siemens AG, 1000 Berlin und 8000 München Fault current protection switch that responds to fault currents with direct current components
GB8512133D0 (en) * 1985-05-14 1985-06-19 Dorman Smith Switchgear Ltd Residual current detector
DE19702371A1 (en) * 1997-01-23 1998-07-30 Siemens Ag Residual current device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8699190B2 (en) 2010-11-23 2014-04-15 Vacuumschmelze Gmbh & Co. Kg Soft magnetic metal strip for electromechanical components

Also Published As

Publication number Publication date
FR2099548B1 (en) 1976-04-30
BE770327A (en) 1972-01-24
FR2099548A1 (en) 1972-03-17
DK134374B (en) 1976-10-25
AT318052B (en) 1974-09-25
CH532855A (en) 1973-01-15
JPS561012B1 (en) 1981-01-10
DE2036497B2 (en) 1975-03-27
DE2036497A1 (en) 1972-02-03
JPS473574A (en) 1972-02-22
DK134374C (en) 1977-03-21

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Legal Events

Date Code Title Description
PS Patent sealed
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
SP Amendment (slips) printed
PCNP Patent ceased through non-payment of renewal fee