GB507962A - Improvements in synchronous a.c. electric motors adapted to be accelerated as induction motors - Google Patents

Improvements in synchronous a.c. electric motors adapted to be accelerated as induction motors

Info

Publication number
GB507962A
GB507962A GB987338A GB987338A GB507962A GB 507962 A GB507962 A GB 507962A GB 987338 A GB987338 A GB 987338A GB 987338 A GB987338 A GB 987338A GB 507962 A GB507962 A GB 507962A
Authority
GB
United Kingdom
Prior art keywords
pole
winding
synchronous
root
short
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
GB987338A
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.)
English Electric Co Ltd
Original Assignee
English Electric 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 English Electric Co Ltd filed Critical English Electric Co Ltd
Priority to GB987338A priority Critical patent/GB507962A/en
Publication of GB507962A publication Critical patent/GB507962A/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
    • H02K19/14—Synchronous motors having additional short-circuited windings for starting as asynchronous motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Synchronous Machinery (AREA)

Abstract

507,962. Dynamo - electric machines. ENGLISH ELECTRIC CO., Ltd., and YOUNGMARK, F. A. March 31, 1938, No. 9873. [Class 35] A synchronous salient pole Alternating-current machine having a pole-face winding 5, to enable the machine to start as an induction motor, has one or more short-circuited coils 6 around a pole core 1 or root of a pole for reducing the alternating flux linking the exciting winding 4. As shown, the short-circuited coil is a metal sleeve embracing the pole core throughout its length or, in order to avoid a reduction in winding space, it may consist of a metal collar embracing the root of the pole and let into the yoke 2. The invention is applicable mainly to machines in which the magnetic circuit is wholly laminated and in which the starting winding is polyphase wound.
GB987338A 1938-03-31 1938-03-31 Improvements in synchronous a.c. electric motors adapted to be accelerated as induction motors Expired GB507962A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB987338A GB507962A (en) 1938-03-31 1938-03-31 Improvements in synchronous a.c. electric motors adapted to be accelerated as induction motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB987338A GB507962A (en) 1938-03-31 1938-03-31 Improvements in synchronous a.c. electric motors adapted to be accelerated as induction motors

Publications (1)

Publication Number Publication Date
GB507962A true GB507962A (en) 1939-06-23

Family

ID=9880355

Family Applications (1)

Application Number Title Priority Date Filing Date
GB987338A Expired GB507962A (en) 1938-03-31 1938-03-31 Improvements in synchronous a.c. electric motors adapted to be accelerated as induction motors

Country Status (1)

Country Link
GB (1) GB507962A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011005296A1 (en) * 2011-03-09 2012-09-13 Siemens Aktiengesellschaft Synchronous machine with HTS rotor winding and damper device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011005296A1 (en) * 2011-03-09 2012-09-13 Siemens Aktiengesellschaft Synchronous machine with HTS rotor winding and damper device

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