GB191027119A - Improvements in or relating to Methods of Starting Electrical Induction Motors. - Google Patents

Improvements in or relating to Methods of Starting Electrical Induction Motors.

Info

Publication number
GB191027119A
GB191027119A GB191027119DA GB191027119A GB 191027119 A GB191027119 A GB 191027119A GB 191027119D A GB191027119D A GB 191027119DA GB 191027119 A GB191027119 A GB 191027119A
Authority
GB
United Kingdom
Prior art keywords
windings
winding
positions
short
circuited
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
Inventor
George Herbert Fletcher
Ernest Arthur Gatehouse
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
Application granted granted Critical
Publication of GB191027119A publication Critical patent/GB191027119A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02—Asynchronous induction motors
    • H02K17/30—Structural association of asynchronous induction motors with auxiliary electric devices influencing the characteristics of the motor or controlling the motor, e.g. with impedances or switches

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor And Converter Starters (AREA)
  • Induction Machinery (AREA)

Abstract

27,119. Fletcher, G. H., and Gatehouse, E. A. Nov. 22. Alternating-current induction machines.-To limit the starting-current, the rotor of an induction motor is provided with two separate three-phase windings I, II, Fig. 2, connected in star and mesh respectively. The two windings may have equal numbers of turns and lie side by side in the same slots, but the conductors of one winding are of smaller sectional area than those of the other, so that the two windings have different resistances. The ends of the windings A, B, C, G, H, J are connected to insulated contact - fingers (shown diagrammatically in Fig. 3) arranged around and revolving with the motor shaft. On the shaft is a sliding drum, which, when moved longitudinally in the positions 1 ... 8, Fig. 3, connects the windings together in the manner desired; the ends A D, B E, and C F are permanently connected together. When the rotor has attained a certain speed; the controller is moved into positions 2 and 3, in which the winding II is cut out of action and the winding I is short-circuited. Positions 4, 5, and 6 serve to short-circuit the winding II and cut out the winding I; in the final positions 7 and 8, the whole of the windings are short-circuited. Some of the intermediate controller positions may be dispensed with.
GB191027119D 1910-11-22 1910-11-22 Improvements in or relating to Methods of Starting Electrical Induction Motors. Expired GB191027119A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191027119T 1910-11-22

Publications (1)

Publication Number Publication Date
GB191027119A true GB191027119A (en) 1911-10-19

Family

ID=32494907

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191027119D Expired GB191027119A (en) 1910-11-22 1910-11-22 Improvements in or relating to Methods of Starting Electrical Induction Motors.

Country Status (1)

Country Link
GB (1) GB191027119A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2516255C2 (en) * 2012-05-23 2014-05-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кубанский государственный аграрный университет" Synchronous motor start-up method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2516255C2 (en) * 2012-05-23 2014-05-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кубанский государственный аграрный университет" Synchronous motor start-up method

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