GB537128A - Improvements in temperature correction devices for watt-hour meters and like instruments - Google Patents

Improvements in temperature correction devices for watt-hour meters and like instruments

Info

Publication number
GB537128A
GB537128A GB3202439A GB3202439A GB537128A GB 537128 A GB537128 A GB 537128A GB 3202439 A GB3202439 A GB 3202439A GB 3202439 A GB3202439 A GB 3202439A GB 537128 A GB537128 A GB 537128A
Authority
GB
United Kingdom
Prior art keywords
shunt
temperature
magnet
watt
instruments
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
GB3202439A
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.)
ALFRED WILLIAM DEAN
VENNER TIME SWITCHES Ltd
Original Assignee
ALFRED WILLIAM DEAN
VENNER TIME SWITCHES 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 ALFRED WILLIAM DEAN, VENNER TIME SWITCHES Ltd filed Critical ALFRED WILLIAM DEAN
Priority to GB3202439A priority Critical patent/GB537128A/en
Publication of GB537128A publication Critical patent/GB537128A/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
    • G01R11/17—Compensating for errors; Adjusting or regulating means therefor
    • G01R11/18—Compensating for variations in ambient conditions
    • G01R11/185—Temperature compensation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

537,128. Compensating meters for temperature errors. VENNER TIME SWITCHES, Ltd., MATTHEWS, S. J., and DEAN, A. W. Dec. 12, 1939, No. 32024. [Class 37] A permanent magnet is provided with a magnetic shunt of a material of which the permeability varies with rise of temperature in such a sense that the flux density in the gap between the poles of the magnet remains constant. The C-shaped permanent magnet 1 of an A.C. energy meter is provided with a shunt 2 composed of a material the permeability of which decreases with rise of temperature. The shunt may be a single U-shaped lamination having the extremities 2a, 2b of its limbs cranked or offset and fixed to the corresponding side faces of the poles 1a, 1b of the magnet so that the major part of the shunt 2 is parallel with but spaced slightly from the face of the magnet 1. The meter may also be provided with the temperature corrected quadrature ring described in Specification 537,129.
GB3202439A 1939-12-12 1939-12-12 Improvements in temperature correction devices for watt-hour meters and like instruments Expired GB537128A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3202439A GB537128A (en) 1939-12-12 1939-12-12 Improvements in temperature correction devices for watt-hour meters and like instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3202439A GB537128A (en) 1939-12-12 1939-12-12 Improvements in temperature correction devices for watt-hour meters and like instruments

Publications (1)

Publication Number Publication Date
GB537128A true GB537128A (en) 1941-06-10

Family

ID=10331910

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3202439A Expired GB537128A (en) 1939-12-12 1939-12-12 Improvements in temperature correction devices for watt-hour meters and like instruments

Country Status (1)

Country Link
GB (1) GB537128A (en)

Similar Documents

Publication Publication Date Title
GB537128A (en) Improvements in temperature correction devices for watt-hour meters and like instruments
GB775250A (en) A magnetic system with closed magnetic circuit
GB514254A (en) Improvements in magnets for electromagnetic instruments and meters
GB424876A (en) Improvements in and relating to electricity meters
GB400654A (en) Improvements in electrical indicating instruments
GB354759A (en) Improvements in or relating to alternating current electrical instruments
GB461110A (en) Improvements relating to the main current magnets of induction meters
GB352043A (en) Improvements in and relating to permanent magnets
GB628007A (en) Improvements in or relating to luxmeters
GB285633A (en) Improvements relating to permanent magnets
DK56511C (en) Magnetomotor Meters and Method of Magnetizing the Permanent Magnet of the Meter.
GB537129A (en) Improvements in the temperature correction of watt-hour meters and other instruments
GB662476A (en) Improvements relating to the brake magnets of electricity meters and the like
GB632334A (en) Improvements in or relating to alternating current measuring instruments
GB512315A (en) Improvements relating to the temperature-compensation of ferraris meters
GB555952A (en) Geographical map provided with movable marking means
GB582694A (en) Improvements in apparatus for indicating the speed of rotary machines
GB385723A (en) Improvements in or relating to electricity meters
GB392761A (en) Improvements in and relating to induction electricity meters and the like
GB886457A (en) Improvements in or relating to electrical induction meters
GB422600A (en) An improved device for the compensation of temperature errors in ferraris measuring instruments
GB896252A (en) Improvements in or relating to induction type polyphase a.c. electrical measuring instruments
GB560683A (en) Improvements relating to electrical measuring or indicating instruments
GB405916A (en) Improved device for the adjustable damping of synchronized clock escapements
GB190327392A (en) Electricity Meters