GB717660A - Improvements relating to electricity meters - Google Patents

Improvements relating to electricity meters

Info

Publication number
GB717660A
GB717660A GB3282452A GB3282452A GB717660A GB 717660 A GB717660 A GB 717660A GB 3282452 A GB3282452 A GB 3282452A GB 3282452 A GB3282452 A GB 3282452A GB 717660 A GB717660 A GB 717660A
Authority
GB
United Kingdom
Prior art keywords
yoke
disc
braking
unit
permanent magnets
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
GB3282452A
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.)
Denis Ferranti Meters Ltd
Original Assignee
Denis Ferranti Meters 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 Denis Ferranti Meters Ltd filed Critical Denis Ferranti Meters Ltd
Priority to GB3282452A priority Critical patent/GB717660A/en
Publication of GB717660A publication Critical patent/GB717660A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/02—Constructional details
    • G01R11/10—Braking magnets; Damping arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)

Abstract

717,660. Eddy current brakes. FERRANTI METERS, Ltd., D., and WRIGHT, L C. Nov. 27, 1953 [Dec. 29, 1952], No. 32824/52. Class 35 A meter disc braking arrangement comprises two braking units each of which includes a yoke and two permanent magnets mounted side-by-side, but spaced from each other, on one side of the yoke. Fig. 1 shows a meter disc 1 having a top unit with a yoke 3 carrying two permanent magnets 5, and a bottom unit having a yoke 4 and permanent magnets 6. The two magnets in each unit are so located and spaced from each other as to have two free poles of opposite polarity. In a modification, a pair of soft iron pole-pieces 9 are mounted on the sides of each of the yokes opposite to those of the magnets and they are separated from the yokes by non-ferrous spacers 10.. A screw 11 forms a variable magnetic bridge between each pair of the pole-pieces 9 so as to alter the reluctance of the return path of the magnetic flux. The braking of a twin-disc meter may be effected by providing one such braking unit for each disc. Specification 690,923 is referred to.
GB3282452A 1952-12-29 1952-12-29 Improvements relating to electricity meters Expired GB717660A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3282452A GB717660A (en) 1952-12-29 1952-12-29 Improvements relating to electricity meters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3282452A GB717660A (en) 1952-12-29 1952-12-29 Improvements relating to electricity meters

Publications (1)

Publication Number Publication Date
GB717660A true GB717660A (en) 1954-10-27

Family

ID=10344542

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3282452A Expired GB717660A (en) 1952-12-29 1952-12-29 Improvements relating to electricity meters

Country Status (1)

Country Link
GB (1) GB717660A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3413550A (en) * 1960-02-26 1968-11-26 Westinghouse Electric Corp Induction meter having magnetically supported rotor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3413550A (en) * 1960-02-26 1968-11-26 Westinghouse Electric Corp Induction meter having magnetically supported rotor

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