GB282363A - Improvements in and relating to electric meters - Google Patents
Improvements in and relating to electric metersInfo
- 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
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.
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) |
-
1927
- 1927-11-24 GB GB31630/27A patent/GB282363A/en not_active Expired
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