GB301848A - Improvements in or relating to alternating current dynamo electric machines - Google Patents

Improvements in or relating to alternating current dynamo electric machines

Info

Publication number
GB301848A
GB301848A GB1805427A GB1805427A GB301848A GB 301848 A GB301848 A GB 301848A GB 1805427 A GB1805427 A GB 1805427A GB 1805427 A GB1805427 A GB 1805427A GB 301848 A GB301848 A GB 301848A
Authority
GB
United Kingdom
Prior art keywords
winding
slots
squirrel
starting
alternating
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
GB1805427A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB1805427A priority Critical patent/GB301848A/en
Publication of GB301848A publication Critical patent/GB301848A/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)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Induction Machinery (AREA)

Abstract

301,848. General Electric Co., Ltd., and Kahn, M. July 7, 1927. Alternating-current motors.-In an alternating- current synchronous motor starting as an induction motor and having on the secondary member a squirrel-cage winding and a slot-wound exciting winding adapted to be fed with continuous current from an external source, the exciting winding is arranged in a separate set of slots at a distance below the squirrel-cage winding so that at starting the exciting winding is shielded from alternating flux and therefore may be connected to the continuous-current supply throughout the starting operation. The squirrel-cage winding, which is of high resistance and low reactance, is located in slots 6 near the periphery of the rotor and the exciting winding is introduced into the lower slots 7 through radial slits 8. Some of the slots 7 in the centre of each pole may be unwound, and the exciting winding may have one-half and one-third the number of slots of the squirrel-cage winding. At starting, the primary winding may be connected to the mains through an auto-transformer.
GB1805427A 1927-07-07 1927-07-07 Improvements in or relating to alternating current dynamo electric machines Expired GB301848A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1805427A GB301848A (en) 1927-07-07 1927-07-07 Improvements in or relating to alternating current dynamo electric machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1805427A GB301848A (en) 1927-07-07 1927-07-07 Improvements in or relating to alternating current dynamo electric machines

Publications (1)

Publication Number Publication Date
GB301848A true GB301848A (en) 1928-12-07

Family

ID=10105834

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1805427A Expired GB301848A (en) 1927-07-07 1927-07-07 Improvements in or relating to alternating current dynamo electric machines

Country Status (1)

Country Link
GB (1) GB301848A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2790098A (en) * 1953-12-03 1957-04-23 Nyyssonen Einard Polyphase synchronous machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2790098A (en) * 1953-12-03 1957-04-23 Nyyssonen Einard Polyphase synchronous machine

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