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GB221214A - Improvements in and relating to dynamo electric machines - Google Patents

Improvements in and relating to dynamo electric machines

Info

Publication number
GB221214A
GB221214A GB20275/24A GB2027524A GB221214A GB 221214 A GB221214 A GB 221214A GB 20275/24 A GB20275/24 A GB 20275/24A GB 2027524 A GB2027524 A GB 2027524A GB 221214 A GB221214 A GB 221214A
Authority
GB
United Kingdom
Prior art keywords
commutator
winding
auxiliary winding
main
commutation
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
GB20275/24A
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 GB221214A publication Critical patent/GB221214A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/26—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the armature windings
    • H02K23/38—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the armature windings having winding or connection for improving commutation, e.g. equipotential connection

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc Machiner (AREA)

Abstract

221,214. British Thomson-Houston Co., Ltd., (Assignees of Steinmetz, C. P.). Aug. 31, 1923, [Convention date]. Armatures, dampers on cores of; commutating poles. - To improve the commutation of high - voltage dynamo - electric machines, an auxiliary winding is provided on the armature, inductively coupled with the main winding and connected to a second commutator, the segments of which are shortcircuited when commutation begins and are kept shortcircuited for a sufficiently long time after commutation for the current in the auxiliary winding to die down. The main winding 3 connected to the commutator 4 and the auxiliary winding 6 connected to the commutator 7 are placed in the same slots so that the mutual inductance is a maximum. The armature is preferably wavewound and the two windings are similar as regards their numbers of turns and coils, but the auxiliary winding is preferably an open-coil winding with the commutator 7 having twice as many segments as the main commutator 4. The field structure comprises main poles 11 and poles 12 for supplying a commutating and compensating flux. Specification 16702/00 is referred to.
GB20275/24A 1923-08-31 1924-08-27 Improvements in and relating to dynamo electric machines Expired GB221214A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US221214XA 1923-08-31 1923-08-31

Publications (1)

Publication Number Publication Date
GB221214A true GB221214A (en) 1925-06-04

Family

ID=21807921

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20275/24A Expired GB221214A (en) 1923-08-31 1924-08-27 Improvements in and relating to dynamo electric machines

Country Status (1)

Country Link
GB (1) GB221214A (en)

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