IT1207131B - Interruttori di sicurezza per correnti di guasto con trasformatore di misura cumulativa - Google Patents

Interruttori di sicurezza per correnti di guasto con trasformatore di misura cumulativa

Info

Publication number
IT1207131B
IT1207131B IT8049386A IT4938680A IT1207131B IT 1207131 B IT1207131 B IT 1207131B IT 8049386 A IT8049386 A IT 8049386A IT 4938680 A IT4938680 A IT 4938680A IT 1207131 B IT1207131 B IT 1207131B
Authority
IT
Italy
Prior art keywords
fault currents
safety switches
cumulative measurement
measurement transformer
transformer
Prior art date
Application number
IT8049386A
Other languages
English (en)
Other versions
IT8049386A0 (it
Inventor
Gottfreid Biegelmeier
Gerhard Amon
Original Assignee
Felten & Guilleaume Ag Oester
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 & Guilleaume Ag Oester filed Critical Felten & Guilleaume Ag Oester
Publication of IT8049386A0 publication Critical patent/IT8049386A0/it
Application granted granted Critical
Publication of IT1207131B publication Critical patent/IT1207131B/it

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/28—Current transformers
    • H01F38/30—Constructions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/28—Current transformers
    • H01F38/30—Constructions
    • H01F2038/305—Constructions with toroidal magnetic core
    • 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
    • H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
    • H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Gas-Insulated Switchgears (AREA)
IT8049386A 1980-01-18 1980-07-30 Interruttori di sicurezza per correnti di guasto con trasformatore di misura cumulativa IT1207131B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0026080A AT363549B (de) 1980-01-18 1980-01-18 Fehlerstromschutzschalter mit summenstromwandler

Publications (2)

Publication Number Publication Date
IT8049386A0 IT8049386A0 (it) 1980-07-30
IT1207131B true IT1207131B (it) 1989-05-17

Family

ID=3485810

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8049386A IT1207131B (it) 1980-01-18 1980-07-30 Interruttori di sicurezza per correnti di guasto con trasformatore di misura cumulativa

Country Status (9)

Country Link
AT (1) AT363549B (it)
BE (1) BE887105A (it)
CH (1) CH650365A5 (it)
DE (1) DE3021768A1 (it)
ES (1) ES8101814A1 (it)
FR (1) FR2480997A1 (it)
GB (1) GB2068646A (it)
IT (1) IT1207131B (it)
NL (1) NL8003569A (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2553198B1 (fr) * 1983-10-05 1986-01-10 Petercem Sa Procede et dispositif de controle du courant d'alimentation d'un recepteur polypole
DE4216248C2 (de) * 1992-05-16 2000-05-18 Abb Patent Gmbh Aufnahmebehälter für einen Wandler für einen Fehlerstromschutzschalter und Wandler
DE4428219C2 (de) * 1994-08-10 2003-11-13 Felten & Guilleaume Ag Abdeckung für Summenstromwandler
DE102005007334B4 (de) * 2005-02-17 2007-02-08 Siemens Ag Summenstromwandler zur allstromsensitiven Erfassung eines elektrischen Differenzstromes
CN100454453C (zh) * 2005-03-10 2009-01-21 上海Mwb互感器有限公司 低功率电子式电流互感器
IES20070918A2 (en) * 2007-12-19 2009-03-18 Atreus Entpr Ltd A current transformer
IT1395697B1 (it) * 2009-05-28 2012-10-19 Abb Spa Trasformatore di corrente, dispositivo di protezione comprendente tale trasformatore, e relativo interruttore
DE102011011983A1 (de) * 2011-02-22 2012-08-23 Doepke Schaltgeräte GmbH Fehlerstrom-Schutzeinrichtung
EP2592636A3 (en) * 2011-11-10 2013-10-23 Atreus Enterprises Limited A current transformer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1385042A (fr) * 1964-02-25 1965-01-08 Siemens Ag Transformateur d'intensité pour haute tension
DE1816411A1 (de) * 1968-12-21 1970-07-02 Siemens Ag Anordnung zur Vermeidung von Fehlimpulsen eines Summenstromwandlers
US3665356A (en) * 1969-04-23 1972-05-23 Rucker Co Differential transformer with balancing means
SE366420B (it) * 1972-08-30 1974-04-22 Asea Ab
DE2503691A1 (de) * 1975-01-30 1976-08-05 Bbc Brown Boveri & Cie Ringkernwandler

Also Published As

Publication number Publication date
AT363549B (de) 1981-08-10
BE887105A (fr) 1981-05-14
ES492386A0 (es) 1980-12-16
ES8101814A1 (es) 1980-12-16
FR2480997A1 (fr) 1981-10-23
IT8049386A0 (it) 1980-07-30
ATA26080A (de) 1981-01-15
DE3021768A1 (de) 1981-07-23
GB2068646A (en) 1981-08-12
NL8003569A (nl) 1981-08-17
CH650365A5 (de) 1985-07-15

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