GB253346A - Improved means for starting synchronous alternating current machines - Google Patents

Improved means for starting synchronous alternating current machines

Info

Publication number
GB253346A
GB253346A GB1343625A GB1343625A GB253346A GB 253346 A GB253346 A GB 253346A GB 1343625 A GB1343625 A GB 1343625A GB 1343625 A GB1343625 A GB 1343625A GB 253346 A GB253346 A GB 253346A
Authority
GB
United Kingdom
Prior art keywords
windings
alternating current
improved means
short
current machines
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
GB1343625A
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 GB1343625A priority Critical patent/GB253346A/en
Publication of GB253346A publication Critical patent/GB253346A/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

253,346. General Electric Co., Ltd., and Garrard, C. C. May 22, 1925. Rotary converters.-In starting a synchronous motor, as in a motor converter, three-phase rotor windings 10, 11, 12 are connected through sliprings to external windings 31, 32, 33, arranged on a magnetic core, and when the machine approaches synchronous speed a switch 34 is closed across one of the three windings so as to produce a synchronizing torque due to the magnetizing effect of the unbalanced windings. The connections are made through ohmic resistances 28, 29, 30, and part or the whole of the resistance 30 is short-circuited together with the winding 33. The magnetizing effect may be obtained by altering the relative numbers of turns on the phases instead of by short-circuiting. Specification 10841/13, [Class 38 (ii), Electric currents, Converting &c.], is referred to.
GB1343625A 1925-05-22 1925-05-22 Improved means for starting synchronous alternating current machines Expired GB253346A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1343625A GB253346A (en) 1925-05-22 1925-05-22 Improved means for starting synchronous alternating current machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1343625A GB253346A (en) 1925-05-22 1925-05-22 Improved means for starting synchronous alternating current machines

Publications (1)

Publication Number Publication Date
GB253346A true GB253346A (en) 1926-06-17

Family

ID=10022954

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1343625A Expired GB253346A (en) 1925-05-22 1925-05-22 Improved means for starting synchronous alternating current machines

Country Status (1)

Country Link
GB (1) GB253346A (en)

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