GB199368A - Improvements in and relating to regulating systems for dynamoelectric machines - Google Patents

Improvements in and relating to regulating systems for dynamoelectric machines

Info

Publication number
GB199368A
GB199368A GB12779/23A GB1277923A GB199368A GB 199368 A GB199368 A GB 199368A GB 12779/23 A GB12779/23 A GB 12779/23A GB 1277923 A GB1277923 A GB 1277923A GB 199368 A GB199368 A GB 199368A
Authority
GB
United Kingdom
Prior art keywords
coil
dynamo
series
relay
resistor
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
GB12779/23A
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
Publication of GB199368A publication Critical patent/GB199368A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/06—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric generators; for synchronous capacitors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Synchronous Machinery (AREA)

Abstract

199,368. British Thomson - Houston Co., Ltd., (Assignees of Gilt, C. M.). June 14, 1922, [Convention date]. Addition to 184,278. Regulation, automatic systems and apparatus for.-Consists in a modification of the method of the parent Specification wherein the voltage of a dynamo 1 is kept constant up to a certain output by a variable resistor 34 in series with its shunt coil 5 and beyond that point is reduced so that the dynamo supplies constant current by the excitation of series coils 6 opposed to the shunt coil 5. According to the invention an auxiliary source of E.M.F. such as an exciter 31 mounted on the shaft of the dynamo 1 is connected in series with the resistor 34 and the shunt winding 5. Under normal conditions the resistor 34 is automatically varied by a pilot motor 35, the coil 36 or coil 37 of which is excited from a source 69, 70 according to the position of the contact arm 39 of a voltmeter relay. Under overload conditions, an ammeter relay 42 operates to ensure that the maximum resistance 34 is inserted, and substantially at the same time a voltage relay 73 causes the operation of a switch 26<1> which removes the short circuit from the opposition coil 6.
GB12779/23A 1922-06-14 1923-05-12 Improvements in and relating to regulating systems for dynamoelectric machines Expired GB199368A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US199368XA 1922-06-14 1922-06-14

Publications (1)

Publication Number Publication Date
GB199368A true GB199368A (en) 1924-04-03

Family

ID=21795864

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12779/23A Expired GB199368A (en) 1922-06-14 1923-05-12 Improvements in and relating to regulating systems for dynamoelectric machines

Country Status (1)

Country Link
GB (1) GB199368A (en)

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