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 systems

Info

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
Application number
GB657226A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB657226A priority Critical patent/GB272289A/en
Publication of GB272289A publication Critical patent/GB272289A/en
Expired legal-status Critical Current

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

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.
GB657226A 1926-03-09 1926-03-09 Improvements in and relating to control equipment for alternating current power systems Expired GB272289A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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