GB637709A - Improvements in measuring power available from a.c. generators - Google Patents
Improvements in measuring power available from a.c. generatorsInfo
- Publication number
- GB637709A GB637709A GB1154448A GB1154448A GB637709A GB 637709 A GB637709 A GB 637709A GB 1154448 A GB1154448 A GB 1154448A GB 1154448 A GB1154448 A GB 1154448A GB 637709 A GB637709 A GB 637709A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wattmeter
- current
- generator
- fed
- power
- 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
- G01R11/48—Meters specially adapted for measuring real or reactive components; Meters specially adapted for measuring apparent energy
- G01R11/54—Meters specially adapted for measuring real or reactive components; Meters specially adapted for measuring apparent energy for measuring simultaneously at least two of the following three variables: real component, reactive component, apparent energy
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
- Synchronous Machinery (AREA)
Abstract
637,709. Power-meters. BRITISH THOMSON-HOUSTON CO., Ltd., and CARFRAE, W. J. April 27, 1948, No. 11544. [Class 37] A wattmeter 6, Fig. 1, has its voltage coil fed with the rectified voltage developed by an A.C. generator 2 and its current coil fed with a current, taken from a shunt 7, in the lead to the generator field 3, and proportional to the current in the field, so that the wattmeter indicates, by the degree of rotation of one of the coils, the maximum power that can be taken from the generator. A further wattmeter 10, Fig. 2, may be fed with the voltage and current delivered by the generator 2, and its indication mechanically combined with that of the meter 6 to give an indication of the difference between the power available and the power being taken. The current coil of the wattmeter 10 may be supplied from a summation transformer fed from current transformers 9 on all leads from the generator, Fig. 3 (not shown). In a further modification, the wattmeter 10 may be replaced by two wattmeters each responsive to one phase of the supply, Fig. 4 (not shown).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1154448A GB637709A (en) | 1948-04-27 | 1948-04-27 | Improvements in measuring power available from a.c. generators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1154448A GB637709A (en) | 1948-04-27 | 1948-04-27 | Improvements in measuring power available from a.c. generators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB637709A true GB637709A (en) | 1950-05-24 |
Family
ID=9988194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1154448A Expired GB637709A (en) | 1948-04-27 | 1948-04-27 | Improvements in measuring power available from a.c. generators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB637709A (en) |
-
1948
- 1948-04-27 GB GB1154448A patent/GB637709A/en not_active Expired
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