DE2906653A1 - Rahmen-fehlerstromwandler - Google Patents

Rahmen-fehlerstromwandler

Info

Publication number
DE2906653A1
DE2906653A1 DE19792906653 DE2906653A DE2906653A1 DE 2906653 A1 DE2906653 A1 DE 2906653A1 DE 19792906653 DE19792906653 DE 19792906653 DE 2906653 A DE2906653 A DE 2906653A DE 2906653 A1 DE2906653 A1 DE 2906653A1
Authority
DE
Germany
Prior art keywords
rail
windings
frame
sets
multiple pole
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.)
Granted
Application number
DE19792906653
Other languages
German (de)
English (en)
Other versions
DE2906653C2 (enrdf_load_stackoverflow
Inventor
Heinz Dr Ing Kraeft
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.)
Ritz Messwandler GmbH and Co KG
Original Assignee
Ritz Messwandler GmbH and Co KG
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 Ritz Messwandler GmbH and Co KG filed Critical Ritz Messwandler GmbH and Co KG
Priority to DE19792906653 priority Critical patent/DE2906653A1/de
Publication of DE2906653A1 publication Critical patent/DE2906653A1/de
Application granted granted Critical
Publication of DE2906653C2 publication Critical patent/DE2906653C2/de
Granted legal-status Critical Current

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
    • 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
    • H01H2083/146—Provisions for avoiding disadvantages of having asymetrical primaries, e.g. induction of a magnetic field even by zero difference current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformers For Measuring Instruments (AREA)
DE19792906653 1979-02-21 1979-02-21 Rahmen-fehlerstromwandler Granted DE2906653A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792906653 DE2906653A1 (de) 1979-02-21 1979-02-21 Rahmen-fehlerstromwandler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792906653 DE2906653A1 (de) 1979-02-21 1979-02-21 Rahmen-fehlerstromwandler

Publications (2)

Publication Number Publication Date
DE2906653A1 true DE2906653A1 (de) 1980-09-04
DE2906653C2 DE2906653C2 (enrdf_load_stackoverflow) 1988-04-21

Family

ID=6063514

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792906653 Granted DE2906653A1 (de) 1979-02-21 1979-02-21 Rahmen-fehlerstromwandler

Country Status (1)

Country Link
DE (1) DE2906653A1 (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4215899C1 (de) * 1992-05-14 1993-11-25 Siemens Ag Anordnung zum Erfassen von Differenzströmen
DE4215900C1 (de) * 1992-05-14 1993-12-23 Siemens Ag Anordnung zum Erfassen von Differenzströmen
DE19653552C2 (de) * 1996-12-20 2000-07-13 Siemens Ag Summenstrom-Wandleranordnung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB489550A (en) * 1937-01-26 1938-07-26 Ig Farbenindustrie Ag Manufacture of films and foils from polymerisation products
GB1211366A (en) * 1967-05-01 1970-11-04 Iain Weir Jones Improvements in and relating to earth leakage current detectors
DE2121380A1 (de) * 1970-09-11 1972-03-16 Aprecher & Schuh Ag Mehrphasiger Stromwandler für die Speisung thermischer Überstrom-Auslöseorgane
DE2432919A1 (de) * 1974-07-05 1976-02-12 Siemens Ag Stromwandler nach dem prinzip des magnetischen spannungsmessers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB489550A (en) * 1937-01-26 1938-07-26 Ig Farbenindustrie Ag Manufacture of films and foils from polymerisation products
GB1211366A (en) * 1967-05-01 1970-11-04 Iain Weir Jones Improvements in and relating to earth leakage current detectors
DE2121380A1 (de) * 1970-09-11 1972-03-16 Aprecher & Schuh Ag Mehrphasiger Stromwandler für die Speisung thermischer Überstrom-Auslöseorgane
DE2432919A1 (de) * 1974-07-05 1976-02-12 Siemens Ag Stromwandler nach dem prinzip des magnetischen spannungsmessers

Also Published As

Publication number Publication date
DE2906653C2 (enrdf_load_stackoverflow) 1988-04-21

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee