GB521151A - Synchronous electric motor with improved reversal characteristics - Google Patents

Synchronous electric motor with improved reversal characteristics

Info

Publication number
GB521151A
GB521151A GB3224038A GB3224038A GB521151A GB 521151 A GB521151 A GB 521151A GB 3224038 A GB3224038 A GB 3224038A GB 3224038 A GB3224038 A GB 3224038A GB 521151 A GB521151 A GB 521151A
Authority
GB
United Kingdom
Prior art keywords
pitch
winding
flux
armature
main
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
GB3224038A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB3224038A priority Critical patent/GB521151A/en
Publication of GB521151A publication Critical patent/GB521151A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/02—Synchronous motors
    • H02K19/10—Synchronous motors for multi-phase current
    • H02K19/12—Synchronous motors for multi-phase current characterised by the arrangement of exciting windings, e.g. for self-excitation, compounding or pole-changing

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

521,151. Alternating-current motors. VEREL, B. P. Nov. 7, 1938, No. 32240. [Class 35] In a synchronous motor of the type employing direct-current excitation the armature is provided with a short-circuited auxiliary winding the pole-pitch of which is an even multiple of that of the main winding and the field-magnet is so arranged that it can produce a flux the pitch of which is the same multiple of the pitch of the working flux as the pitch of the auxiliary winding is of'that of the main winding; by rearranging the field magnet flux as described a braking torque is produced which may cooperate with the effect produced by a damping- winding in the pole faces. The Figure shows such an arrangement in which the stator is the armature and is provided with auxiliary coils 1 of twice the pitch of the main coils 9, 10, Consecutive field magnet poles have opposite polarities in normal work, for braking the polarities of alternate pairs 5 of poles are reversed as indicated by the bracketed letters.
GB3224038A 1938-11-07 1938-11-07 Synchronous electric motor with improved reversal characteristics Expired GB521151A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3224038A GB521151A (en) 1938-11-07 1938-11-07 Synchronous electric motor with improved reversal characteristics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3224038A GB521151A (en) 1938-11-07 1938-11-07 Synchronous electric motor with improved reversal characteristics

Publications (1)

Publication Number Publication Date
GB521151A true GB521151A (en) 1940-05-14

Family

ID=10335509

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3224038A Expired GB521151A (en) 1938-11-07 1938-11-07 Synchronous electric motor with improved reversal characteristics

Country Status (1)

Country Link
GB (1) GB521151A (en)

Similar Documents

Publication Publication Date Title
US4011479A (en) Stator construction for a permanent magnet-excited d-c machine
GB494607A (en) Improvements in and relating to dynamo electric machines
US2525455A (en) Rotor for synchronous induction motors
GB642477A (en) Improvements relating to self-starting synchronous motors
GB1227270A (en)
GB521151A (en) Synchronous electric motor with improved reversal characteristics
GB458671A (en) Improvements in and relating to rotating field synchronous electric motors with asynchronous starting arrangements
FR1454811A (en) Synchronous motor excited by a permanent magnet
GB660064A (en) Improvements in and relating to alternating current generators
GB494606A (en) Improvements in and relating to alternating-current dynamo electric machines
GB439481A (en) Improvements in and relating to dynamo electric machines
GB517543A (en) Improvements relating to alternating current generators
SU15012A1 (en) Induction motor
GB466719A (en) Improvements in and relating to dynamo electric machines
GB337097A (en) Alternating current synchronous motors
GB175084A (en) Improvements in and relating to dynamo electric machines
GB459351A (en) Self-starting single-phase alternating current synchronous motor
GB196586A (en) Improvements in or relating to synchronized asynchronous machines
GB492644A (en) Improvements in and relating to electric motors
US1713617A (en) Electric motor
GB456206A (en) Improvements in and relating to permanent magnet dynamo electric machines
GB557968A (en) Improvements in and relating to dynamo electric machines
GB625506A (en) Improvements in and relating to alternating current motors
GB1202693A (en) Dynamo-electric machines
GB428957A (en) Improvements in and relating to electric motors