GB474668A - Improvements in electric relays - Google Patents

Improvements in electric relays

Info

Publication number
GB474668A
GB474668A GB968436A GB968436A GB474668A GB 474668 A GB474668 A GB 474668A GB 968436 A GB968436 A GB 968436A GB 968436 A GB968436 A GB 968436A GB 474668 A GB474668 A GB 474668A
Authority
GB
United Kingdom
Prior art keywords
armatures
high permeability
electromagnet
voltage
mumetal
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
GB968436A
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical Co Ltd
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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Priority to GB968436A priority Critical patent/GB474668A/en
Publication of GB474668A publication Critical patent/GB474668A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H01H47/16—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for conjoint, e.g. additive, operation of the relay

Landscapes

  • Electromagnets (AREA)

Abstract

474,668. Electromagnets. RYDER, C., BRAITHWAITE, R. C., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. April 1, 1936, No. 9684. [Class 35] [Also in Group XXXVII] In an electromagnetic relay, preferably of the quick-acting impedance type, each or either of the armatures is formed with a portion of ordinary magnetic material which is shrouded on the face nearer the co-operating electromagnet by a portion of high permeability metal or alloy such as Mumetal (Registered Trade Mark). As shown in the Figure applied to an impedance relay with a voltage electromagnet 6 and current electromagnet 5, the armature of the former comprises a plate 4 of ordinary magnetic material to which is secured on the face adjacent to the fixed core a plate 8 of Mumetal or other high permeability material, insulating material 9 being, if desired, interposed between the plates. The fixed core 6 may also, if desired, be made to include a portion of such high permeability material. By this construction it is stated that the calibration of the impedance relay can be maintained over a wide range and under varying conditions and the effects of hysteresis minimized. When connected in a line circuit operating with variable power-factor the voltage winding or the voltage and current windings may be fed through a rectifier or a system of rectifiers, thus rendering the relation between the forces exerted by the magnets on their armatures substantially independent of power-factor and also preventing chattering of the armatures.
GB968436A 1936-04-01 1936-04-01 Improvements in electric relays Expired GB474668A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB968436A GB474668A (en) 1936-04-01 1936-04-01 Improvements in electric relays

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB968436A GB474668A (en) 1936-04-01 1936-04-01 Improvements in electric relays

Publications (1)

Publication Number Publication Date
GB474668A true GB474668A (en) 1937-11-01

Family

ID=9876767

Family Applications (1)

Application Number Title Priority Date Filing Date
GB968436A Expired GB474668A (en) 1936-04-01 1936-04-01 Improvements in electric relays

Country Status (1)

Country Link
GB (1) GB474668A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3415971A (en) * 1964-12-31 1968-12-10 Elox Corp Hand vibrator for spark discharge metal depositing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3415971A (en) * 1964-12-31 1968-12-10 Elox Corp Hand vibrator for spark discharge metal depositing

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