GB763695A - Magnetic device for detecting reverse current - Google Patents

Magnetic device for detecting reverse current

Info

Publication number
GB763695A
GB763695A GB74755A GB74755A GB763695A GB 763695 A GB763695 A GB 763695A GB 74755 A GB74755 A GB 74755A GB 74755 A GB74755 A GB 74755A GB 763695 A GB763695 A GB 763695A
Authority
GB
United Kingdom
Prior art keywords
armature
pole shoes
reverse current
soft iron
conductor
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
GB74755A
Inventor
Bjarne Storsand
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.)
Rheinmetall Air Defence AG
Maschinenfabrik Oerlikon AG
Original Assignee
Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Maschinenfabrik Oerlikon 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 Werkzeugmaschinenfabrik Oerlikon Buhrle AG, Maschinenfabrik Oerlikon AG filed Critical Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Priority to GB74755A priority Critical patent/GB763695A/en
Publication of GB763695A publication Critical patent/GB763695A/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
    • H01H83/08—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by reversal of dc

Landscapes

  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Abstract

763,695. Electric indicators. MASCHINENFABRIK OERLIKON. Jan. 10, 1955, No. 747/55. Class 40 (1). [Also in Groups XXXV, XXXVI and XXXVII] A device for detecting reverse current in a rectifier anode conductor 1 comprises a pair of permanent bar magnets 5 embedded in a copper block 11 and having soft iron pole shoes 7, and shielded by a pair of soft iron pole shoes 3, there being also a soft iron yoke 8 and a pivoted armature 9 biased by a spring 10. Normally, the field 2 of the conductor 1 induces N and S poles in the pole shoes 3 as shown, and the armature is held against the S<SP>1</SP> pole of the permanent magnet system, a reverse current in the conductor causing reversal of the polarity of the pole shoes 3 whereby the armature 9 moves into the chain-dotted line position. Resetting is by hand or by a separate electromagnet. The armature may operate contacts.
GB74755A 1955-01-10 1955-01-10 Magnetic device for detecting reverse current Expired GB763695A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB74755A GB763695A (en) 1955-01-10 1955-01-10 Magnetic device for detecting reverse current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB74755A GB763695A (en) 1955-01-10 1955-01-10 Magnetic device for detecting reverse current

Publications (1)

Publication Number Publication Date
GB763695A true GB763695A (en) 1956-12-12

Family

ID=9709821

Family Applications (1)

Application Number Title Priority Date Filing Date
GB74755A Expired GB763695A (en) 1955-01-10 1955-01-10 Magnetic device for detecting reverse current

Country Status (1)

Country Link
GB (1) GB763695A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138211A (en) * 1983-04-13 1984-10-17 Lre Relais & Elektronik Gmbh Magnet apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138211A (en) * 1983-04-13 1984-10-17 Lre Relais & Elektronik Gmbh Magnet apparatus

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