FR2447093A1 - LEAKAGE CURRENT CIRCUIT BREAKER SENSITIVE TO DIRECT CURRENT - Google Patents

LEAKAGE CURRENT CIRCUIT BREAKER SENSITIVE TO DIRECT CURRENT

Info

Publication number
FR2447093A1
FR2447093A1 FR7922421A FR7922421A FR2447093A1 FR 2447093 A1 FR2447093 A1 FR 2447093A1 FR 7922421 A FR7922421 A FR 7922421A FR 7922421 A FR7922421 A FR 7922421A FR 2447093 A1 FR2447093 A1 FR 2447093A1
Authority
FR
France
Prior art keywords
circuit breaker
leakage current
turns
direct current
leakage
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.)
Pending
Application number
FR7922421A
Other languages
French (fr)
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.)
Felten and Guilleaume AG
Original Assignee
Felten and Guilleaume 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
Application filed by Felten and Guilleaume AG filed Critical Felten and Guilleaume AG
Publication of FR2447093A1 publication Critical patent/FR2447093A1/en
Pending 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Resistance Heating (AREA)
  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Control Of Temperature (AREA)

Abstract

La présente invention concerne un disjoncteur de courant de fuite. Conformément à l'invention le déclenchement à courant de fuite 2 comporte un circuit d'excitation fermé et un enroulement d'excitation 3 avec un nombre de spires inférieur à cent et le transformateur à addition de courants 7 un enroulement tertiaire additionnel 10 qui est connecté en série avec un condensateur de compensation 11, l'enroulement tertiaire 10 comportant un nombre de spires qui est égal à trois à neuf fois le nombre de spires de l'enroulement secondaire 9. Ce disjoncteur fonctionne pour des courants de fuite en courant continu pulsé.The present invention relates to a leakage current circuit breaker. According to the invention, the leakage current tripping 2 comprises a closed excitation circuit and an excitation winding 3 with a number of turns of less than one hundred and the adding current transformer 7 an additional tertiary winding 10 which is connected in series with a compensation capacitor 11, the tertiary winding 10 comprising a number of turns which is equal to three to nine times the number of turns of the secondary winding 9. This circuit breaker operates for pulsed direct current leakage currents .

FR7922421A 1979-01-22 1979-09-07 LEAKAGE CURRENT CIRCUIT BREAKER SENSITIVE TO DIRECT CURRENT Pending FR2447093A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT43379A AT357625B (en) 1979-01-22 1979-01-22 DC CURRENT SENSITIVE CURRENT CIRCUIT BREAKER

Publications (1)

Publication Number Publication Date
FR2447093A1 true FR2447093A1 (en) 1980-08-14

Family

ID=3490474

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7922421A Pending FR2447093A1 (en) 1979-01-22 1979-09-07 LEAKAGE CURRENT CIRCUIT BREAKER SENSITIVE TO DIRECT CURRENT

Country Status (8)

Country Link
AT (1) AT357625B (en)
BE (1) BE877057A (en)
CH (1) CH645758A5 (en)
ES (1) ES481662A1 (en)
FR (1) FR2447093A1 (en)
GB (1) GB2045023B (en)
IT (1) IT1207084B (en)
NL (1) NL7905943A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4547658A (en) * 1984-06-13 1985-10-15 Sunbeam Corporation Multiple heat fusing wire circuit for underblankets
GB2174853A (en) * 1985-03-27 1986-11-12 Tech Mirage Ind Limited Safety circuit for electric heater
US4707686A (en) * 1986-04-03 1987-11-17 General Electric Company Over temperature sensing system for power cables
US4677281A (en) * 1986-11-04 1987-06-30 Fieldcrest Cannon, Inc. Electric heating apparatus with integrated solid state comfort control and overheat protection
GB2334389B (en) 1998-02-16 2002-03-06 Dreamland Appliances Ltd Electrically heated panel apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1803811A1 (en) * 1968-10-18 1970-06-04 Ritz Messwandler Gmbh Intermediate current transformer for >> quick protection <<
DE1763366A1 (en) * 1968-05-15 1972-03-30 Ritz Messwandler Gmbh Compensated current transformer core for quick protection
CH600551A5 (en) * 1976-09-18 1978-06-15 Maier Carl Cmc & Cie Ag Release for electrical switch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1763366A1 (en) * 1968-05-15 1972-03-30 Ritz Messwandler Gmbh Compensated current transformer core for quick protection
DE1803811A1 (en) * 1968-10-18 1970-06-04 Ritz Messwandler Gmbh Intermediate current transformer for >> quick protection <<
CH600551A5 (en) * 1976-09-18 1978-06-15 Maier Carl Cmc & Cie Ag Release for electrical switch

Also Published As

Publication number Publication date
CH645758A5 (en) 1984-10-15
AT357625B (en) 1980-07-25
BE877057A (en) 1979-10-15
ATA43379A (en) 1979-12-15
IT1207084B (en) 1989-05-17
GB2045023A (en) 1980-10-22
ES481662A1 (en) 1980-01-16
NL7905943A (en) 1980-07-24
IT8047655A0 (en) 1980-01-21
GB2045023B (en) 1983-02-23

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Legal Events

Date Code Title Description
TP Transmission of property