GB282363A - Improvements in and relating to electric meters - Google Patents

Improvements in and relating to electric meters

Info

Publication number
GB282363A
GB282363A GB31630/27A GB3163027A GB282363A GB 282363 A GB282363 A GB 282363A GB 31630/27 A GB31630/27 A GB 31630/27A GB 3163027 A GB3163027 A GB 3163027A GB 282363 A GB282363 A GB 282363A
Authority
GB
United Kingdom
Prior art keywords
damping
magnet
supplied
increase
flux
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
GB31630/27A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB282363A publication Critical patent/GB282363A/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
    • G01R11/36—Induction meters, e.g. Ferraris meters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Particle Accelerators (AREA)

Abstract

282,363. British Thomson-Houston Co., Ltd., (Assignees of Pratt, W. H.). Dec. 17, 1926, [Convention date]. Induction motor meters. - In an integrating meter of the induction type the damping is effected by alternating-current electromagnets and is automatically controlled so as to compensate the meter for frequency errors. Part of the damping flux is supplied by the pressure magnet 13, the strength of which is increased as described in Specification 274,134. The remainder of the damping flux is supplied by an electromagnet 22 connected across the mains through an adjustable condenser 23. The energizing circuit of the magnet 22 is tuned so as to operate on the ascending slope of the resonance curve over the variable frequency range, so that the damping due to the magnet 22 increase with increase of frequency, thereby compensating for the decrease of damping due to the pressure magnet 13. On a 60-cycle circuit the magnet 22 may supply about one-third of the total damping.
GB31630/27A 1926-12-17 1927-11-24 Improvements in and relating to electric meters Expired GB282363A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US282363XA 1926-12-17 1926-12-17

Publications (1)

Publication Number Publication Date
GB282363A true GB282363A (en) 1928-04-26

Family

ID=21842301

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31630/27A Expired GB282363A (en) 1926-12-17 1927-11-24 Improvements in and relating to electric meters

Country Status (1)

Country Link
GB (1) GB282363A (en)

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