GB335796A - Improvements relating to alternating current electricity meters - Google Patents
Improvements relating to alternating current electricity metersInfo
- Publication number
- GB335796A GB335796A GB34391/29A GB3439129A GB335796A GB 335796 A GB335796 A GB 335796A GB 34391/29 A GB34391/29 A GB 34391/29A GB 3439129 A GB3439129 A GB 3439129A GB 335796 A GB335796 A GB 335796A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frequency
- coil
- employed
- current
- accordance
- 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)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
335,796. Allgemeine Elektricitõts Ges. Nov. 13, 1928, [Convention date]. Supply meters. - In order to enable a meter to be employed on circuits of different frequencies, the current driving flux is varied in accordance with the frequency, as by varying the number of ampere-turns of the current coil in accordance with the frequency. As shown, the main current coil a is tapped at a<1>1, the tapping being brought to a terminal a1 for use on the circuit of lower frequency, for example 25 periods per second. On a circuit of the higher frequency, for example 50 periods per second, the complete coil is employed. An adjustable shunt resistance d is arranged in parallel with the branched winding of the main current soil. The voltage coil b is connected directly across the mains when employed with the lower frequency, and is connected in series with a non-inductive resistance c when used with the higher frequency so that the phase displacement is the same in both cases. A meter designed for more than two frequencies has more than one adjustable shunt resistance for connection in parallel with the current coil or a portion thereof.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE335796X | 1928-11-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB335796A true GB335796A (en) | 1930-10-02 |
Family
ID=6219681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34391/29A Expired GB335796A (en) | 1928-11-13 | 1929-11-11 | Improvements relating to alternating current electricity meters |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB335796A (en) |
-
1929
- 1929-11-11 GB GB34391/29A patent/GB335796A/en not_active Expired
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