GB651888A - Improvements in or relating to regulating systems for alternating current systems - Google Patents

Improvements in or relating to regulating systems for alternating current systems

Info

Publication number
GB651888A
GB651888A GB13167/48A GB1316748A GB651888A GB 651888 A GB651888 A GB 651888A GB 13167/48 A GB13167/48 A GB 13167/48A GB 1316748 A GB1316748 A GB 1316748A GB 651888 A GB651888 A GB 651888A
Authority
GB
United Kingdom
Prior art keywords
power factor
systems
excitation
resistor
reactor
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
GB13167/48A
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.)
Westinghouse Electric International Co
Original Assignee
Westinghouse Electric International Co
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 Westinghouse Electric International Co filed Critical Westinghouse Electric International Co
Publication of GB651888A publication Critical patent/GB651888A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

651,888. Automatic power factor control systems ; exciting dynamo-electric machines. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. May 13, 1948, No. 13167. Convention date, May 28, 1947. [Classes 35 and 38 (iv)] [Also in Group XXXVII] The power factor of a circuit is maintained constant by a synchronous motor, the excitation of which is controlled by a series wound exciter operating on the unstable part of its characteristic. The output of a potential transformer 17 is connected across a reactor 18 and across two rectifier bridges 11, 12. The common terminal of the bridges is connected to a tapping on the reactor 18 via a resistor 20 across which is applied a voltage proportional to the line current. A change in the power factor unbalances the voltages across the rectifier 11, 12 thereby unbalancing the opposed control fields 9, 10 of the series wound subexciter 7, the load on which is adjusted by a resistor 8 so that the generator 7 is operating over the unstable portion of the characteristic. Hence the small variations in control field result in a large change in the excitation of the synchronous motor 1. Specification 629,586 is referred to.
GB13167/48A 1947-05-28 1948-05-13 Improvements in or relating to regulating systems for alternating current systems Expired GB651888A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US651888XA 1947-05-28 1947-05-28

Publications (1)

Publication Number Publication Date
GB651888A true GB651888A (en) 1951-04-11

Family

ID=22060925

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13167/48A Expired GB651888A (en) 1947-05-28 1948-05-13 Improvements in or relating to regulating systems for alternating current systems

Country Status (1)

Country Link
GB (1) GB651888A (en)

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