GB272289A - Improvements in and relating to control equipment for alternating current power systems - Google Patents
Improvements in and relating to control equipment for alternating current power systemsInfo
- Publication number
- GB272289A GB272289A GB657226A GB657226A GB272289A GB 272289 A GB272289 A GB 272289A GB 657226 A GB657226 A GB 657226A GB 657226 A GB657226 A GB 657226A GB 272289 A GB272289 A GB 272289A
- Authority
- GB
- United Kingdom
- Prior art keywords
- current
- power
- rectifier
- instrument
- alternating current
- 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
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/22—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of ac into dc
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
- G01R15/183—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Brushless Motors (AREA)
Abstract
272,289. British Thomson-Houston Co., Ltd., and Clough, F. H. March 9, 1926. Current meters; power meters.- The current or power at any point in an alternating current power system is indicated at a central control station by means of a current transformer having an air-gap 3 in its iron core 4, a rectifier for the current induced in the secondary winding 2, and pilot leads 5 for transmitting the rectified current to a moving-coil direct-current indicating instrument 6 at the control station. The rectifier may be of the kind known under the Registered Trade Mark " Tungar " or may consist of vacuum valves 7, Fig. 1, arranged in parallel, in which case the instrument 6 indicates the current at the selected point. In a modification, Fig. 2, the rectifier consists of a commutator 8 driven by a synchronous motor 9 which derives its power from a potential transformer. In this case, since the position of the commutator is definitely related to the phase of the voltage of the system, the resulting rectified current has a value depending on the phase of the current, enabling the instrument 6 to indicate power.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB657226A GB272289A (en) | 1926-03-09 | 1926-03-09 | Improvements in and relating to control equipment for alternating current power systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB657226A GB272289A (en) | 1926-03-09 | 1926-03-09 | Improvements in and relating to control equipment for alternating current power systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB272289A true GB272289A (en) | 1927-06-09 |
Family
ID=9816931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB657226A Expired GB272289A (en) | 1926-03-09 | 1926-03-09 | Improvements in and relating to control equipment for alternating current power systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB272289A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0125050A1 (en) * | 1983-04-13 | 1984-11-14 | Niagara Mohawk Power Corporation | Apparatus for measuring the temperature and other parameters of an electric power conductor |
GB2566044A (en) * | 2017-08-31 | 2019-03-06 | Bombardier Primove Gmbh | A device and method for generating a measurement signal for an AC current in a phase line |
-
1926
- 1926-03-09 GB GB657226A patent/GB272289A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0125050A1 (en) * | 1983-04-13 | 1984-11-14 | Niagara Mohawk Power Corporation | Apparatus for measuring the temperature and other parameters of an electric power conductor |
GB2566044A (en) * | 2017-08-31 | 2019-03-06 | Bombardier Primove Gmbh | A device and method for generating a measurement signal for an AC current in a phase line |
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