GB644183A - Improvements in and relating to dynamo electric machines - Google Patents

Improvements in and relating to dynamo electric machines

Info

Publication number
GB644183A
GB644183A GB1304648A GB1304648A GB644183A GB 644183 A GB644183 A GB 644183A GB 1304648 A GB1304648 A GB 1304648A GB 1304648 A GB1304648 A GB 1304648A GB 644183 A GB644183 A GB 644183A
Authority
GB
United Kingdom
Prior art keywords
winding
brushes
motor
phase
sections
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
GB1304648A
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 GB1304648A priority Critical patent/GB644183A/en
Publication of GB644183A publication Critical patent/GB644183A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K27/00—AC commutator motors or generators having mechanical commutator
    • H02K27/12—AC commutator motors or generators having mechanical commutator having multi-phase operation

Landscapes

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

Abstract

644,183. A.C. commutation machines. BRITISH THOMSON-HOUSTON CO., Ltd., and MAGGS, A. H. May 12, 1948, No. 13046. [Class 35] A.C. stator fed commutator motor with fixed brushes has its speed regulated by means of a tapped regulating winding accommodated in the stator slots and connected through the tapping to the brushes in order to inject voltages in the rotor winding according to the position of the tapping. The Figure shows a two-phase motor (stator winding not shown) having a secondary winding 1 with brushes 2, 3 connected to the regulating winding having sections 6, 7, 8 of the first phase and with brushes 4, 5 connected to the regulating winding having sections 9, 10, 11 of the second phase. When the three sections 6, 7, 8 have their turns in the ratio 1 : 3 : 2 the motor can have thirteen speeds and, if section 7 is omitted, the motor can operate on seven possible speeds. The speed varies from maximum to minimum according to whether the M.M.F's of the regulating winding and of the respective rotor winding are assisting to the maximum value in the same sense or in maximum opposition. The supply can be single phase, if a condenser is used, or polyphase. Specification 24581/08, [Class 35], is referred to.
GB1304648A 1948-05-12 1948-05-12 Improvements in and relating to dynamo electric machines Expired GB644183A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1304648A GB644183A (en) 1948-05-12 1948-05-12 Improvements in and relating to dynamo electric machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1304648A GB644183A (en) 1948-05-12 1948-05-12 Improvements in and relating to dynamo electric machines

Publications (1)

Publication Number Publication Date
GB644183A true GB644183A (en) 1950-10-04

Family

ID=10015806

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1304648A Expired GB644183A (en) 1948-05-12 1948-05-12 Improvements in and relating to dynamo electric machines

Country Status (1)

Country Link
GB (1) GB644183A (en)

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