GB999141A - An installation including an electrical machine - Google Patents

An installation including an electrical machine

Info

Publication number
GB999141A
GB999141A GB1246362A GB1246362A GB999141A GB 999141 A GB999141 A GB 999141A GB 1246362 A GB1246362 A GB 1246362A GB 1246362 A GB1246362 A GB 1246362A GB 999141 A GB999141 A GB 999141A
Authority
GB
United Kingdom
Prior art keywords
voltage
generator
rectifier
field winding
devices
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
GB1246362A
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
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 Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Publication of GB999141A publication Critical patent/GB999141A/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
    • H02P9/10—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
    • H02P9/12—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load for demagnetising; for reducing effects of remanence; for preventing pole reversal
    • H02P9/123—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load for demagnetising; for reducing effects of remanence; for preventing pole reversal for demagnetising; for reducing effects of remanence

Landscapes

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

Abstract

999,141. Dynamo-electric machines. SIEMENS-SCHUCKERTWERKE A.G. March 30, 1962 [March 30, 1961], No. 12463/62. Heading H2A. An installation which includes an electrical machine 1, e.g. synchronous generator, in whose field winding circuit is an exciter rectifier 3, and an alternating voltage source, is provided with a de-exciting arrangement comprising connected across the field winding 2 at least two parallel paths 6, each including a rectifier 9 in series with a controllable fourlayer semi-conductor device 8 whose breakdown voltage is above the voltage normally applied to the field winding, means for connecting the source to the connecting points between the rectifiers 9 and devices 8, and means, not shown), for rendering the devices 8 conductive. To de-excite the generator switches 10 forming the connecting means are closed and a switch 12 is opened whereupon the paths 6 provide a D.C. voltage opposing that of the rectifier 3 which if the latter can act a invertor remains operative until field current reversal, but if not, is rendered inoperative by opening switches 13. A voltage transformer 5 and regulator 4 may regulate the rectifier 3 which, with the paths 6, may be positioned in the generator rotor. The source is either a constant-voltage permanent magnet generator 14 coupled to the generator 1 or, not shown, a self-excitation circuit of output current- and voltage-dependent transformers. High voltages across the field winding are prevented by condensers, and breakdown of the devices 8.
GB1246362A 1961-03-30 1962-03-30 An installation including an electrical machine Expired GB999141A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES73263A DE1176259B (en) 1961-03-30 1961-03-30 De-excitation arrangement for synchronous machines with an inductor winding excited by a rectifier from an AC voltage source

Publications (1)

Publication Number Publication Date
GB999141A true GB999141A (en) 1965-07-21

Family

ID=7503788

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1246362A Expired GB999141A (en) 1961-03-30 1962-03-30 An installation including an electrical machine

Country Status (3)

Country Link
CH (1) CH395275A (en)
DE (1) DE1176259B (en)
GB (1) GB999141A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105305906A (en) * 2014-06-20 2016-02-03 中国电力工程顾问集团华北电力设计院工程有限公司 Rapid field suppression structure and method for generator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE636934C (en) * 1936-10-19 Paul Hoesl Oil-filled asynchronous motor for underwater use
DE707124C (en) * 1932-12-07 1941-06-17 Siemens Schuckertwerke Akt Ges Device for the rapid de-energization of the field winding of large machines
DE849727C (en) * 1950-09-27 1952-09-18 Siemens Ag Dry rectifier arrangement for the excitation of an electrical generator
DE906824C (en) * 1951-07-03 1954-03-18 Siemens Ag Device for changing the excitation of alternators or reactive power machines
DE1032846B (en) * 1957-10-19 1958-06-26 Daimler Benz Ag Slip-ringless transmitter for the acceptance of alternating current pulses

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105305906A (en) * 2014-06-20 2016-02-03 中国电力工程顾问集团华北电力设计院工程有限公司 Rapid field suppression structure and method for generator
CN105305906B (en) * 2014-06-20 2018-05-29 中国电力工程顾问集团华北电力设计院有限公司 Generator quick de-excitation structure and method

Also Published As

Publication number Publication date
DE1176259B (en) 1964-08-20
CH395275A (en) 1965-07-15

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