GB1281708A - Electric circuit interrupter - Google Patents

Electric circuit interrupter

Info

Publication number
GB1281708A
GB1281708A GB57378/69A GB5737869A GB1281708A GB 1281708 A GB1281708 A GB 1281708A GB 57378/69 A GB57378/69 A GB 57378/69A GB 5737869 A GB5737869 A GB 5737869A GB 1281708 A GB1281708 A GB 1281708A
Authority
GB
United Kingdom
Prior art keywords
current
star
circuit interrupter
transformers
secondary windings
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
GB57378/69A
Other languages
English (en)
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1281708A publication Critical patent/GB1281708A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • 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
    • H01F38/38—Instruments transformers for polyphase ac

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Breakers (AREA)
GB57378/69A 1969-01-02 1969-11-24 Electric circuit interrupter Expired GB1281708A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78858869A 1969-01-02 1969-01-02

Publications (1)

Publication Number Publication Date
GB1281708A true GB1281708A (en) 1972-07-12

Family

ID=25144942

Family Applications (1)

Application Number Title Priority Date Filing Date
GB57378/69A Expired GB1281708A (en) 1969-01-02 1969-11-24 Electric circuit interrupter

Country Status (6)

Country Link
US (1) US3575677A (fr)
BE (1) BE743810A (fr)
BR (1) BR6915735D0 (fr)
ES (1) ES374575A1 (fr)
FR (1) FR2027669A1 (fr)
GB (1) GB1281708A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0058547B1 (fr) * 1981-02-17 1984-12-19 Auto-Masters Limited Appareil de découpage de plaques d'impression
DE19731170A1 (de) * 1997-07-21 1999-01-28 Kloeckner Moeller Gmbh Stromwandler für Drehstromsysteme

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3037176A (en) * 1959-12-30 1962-05-29 Thorn Electrical Ind Ltd Electrical inductors
US3323057A (en) * 1966-05-02 1967-05-30 Halmar Electronics Hall generator current meter having extraneous field compensating apparatus

Also Published As

Publication number Publication date
BE743810A (fr) 1970-05-28
BR6915735D0 (pt) 1973-02-20
FR2027669A1 (fr) 1970-10-02
ES374575A1 (es) 1972-03-01
US3575677A (en) 1971-04-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees