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GB190521A - Improvements in dynamo-electric machines - Google Patents

Improvements in dynamo-electric machines

Info

Publication number
GB190521A
GB190521A GB2469221A GB2469221A GB190521A GB 190521 A GB190521 A GB 190521A GB 2469221 A GB2469221 A GB 2469221A GB 2469221 A GB2469221 A GB 2469221A GB 190521 A GB190521 A GB 190521A
Authority
GB
United Kingdom
Prior art keywords
wedges
windings
extended
slots
extensions
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
GB2469221A
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.)
HENRY BERTRAM WHITMORE
Lancashire Dynamo & Motor Comp
Original Assignee
HENRY BERTRAM WHITMORE
Lancashire Dynamo & Motor Comp
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 HENRY BERTRAM WHITMORE, Lancashire Dynamo & Motor Comp filed Critical HENRY BERTRAM WHITMORE
Priority to GB2469221A priority Critical patent/GB190521A/en
Publication of GB190521A publication Critical patent/GB190521A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
    • H02K3/51—Fastening of winding heads, equalising connectors, or connections thereto applicable to rotors only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

190,521. Lancashire Dynamo &. Motor Co., Ltd., and Whitmore, K. B. Sept. 17, 1921. Coils and conductors; dampers and shortcircuited screens on cores.-In rotors for dynamoelectric machines wherein the end windings are supported by extended slot wedges, the ends of the wedge-extensions are turned up into a cylindrical spigot so as to fit into an annular recess or socket in a disc or end-plate fixed to the rotor. If the windings are not evenly distributed around the periphery, shallow slots may be cut in the intervening iron portions to accommodate additional wedges. The wedges E, Fig. 1, may be divided at the centre e<2> to prevent the circulation of eddy currents, and the turned ends e<1> are held by annular rings F bolted to extensions b<1> of the end ring B. To give the necessary strength and to suit the shape of the windings, the cross-sectional area of the extended wedges E<3> may be graduated as shown in Fig. 5. 'In a modification, Fig. 6, the wedges E<4> are secured by binding-wire e<3>, and the ends rest on the periphery of the ring F'. Figs. 13 and 14 show the application of the invention to a salient-pole rotor, in which closed slots G<2> are cut in the coreplates A<2>, and bars E<8> are inserted to support the coils D<4>; open slots may be used. The extended wedges may act as damping circuits and ventilating fans.
GB2469221A 1921-09-17 1921-09-17 Improvements in dynamo-electric machines Expired GB190521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2469221A GB190521A (en) 1921-09-17 1921-09-17 Improvements in dynamo-electric machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2469221A GB190521A (en) 1921-09-17 1921-09-17 Improvements in dynamo-electric machines

Publications (1)

Publication Number Publication Date
GB190521A true GB190521A (en) 1922-12-18

Family

ID=10215756

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2469221A Expired GB190521A (en) 1921-09-17 1921-09-17 Improvements in dynamo-electric machines

Country Status (1)

Country Link
GB (1) GB190521A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031593A (en) * 1956-10-18 1962-04-24 Westinghouse Electric Corp Dynamoelectric machine
WO1992000626A1 (en) * 1990-06-23 1992-01-09 Robert Bosch Gmbh Armature for high-speed forced-ventilation electric motors running in air containing abrasive dust
EP0535334A1 (en) * 1991-10-01 1993-04-07 Asea Brown Boveri Ag Rotor of an electric machine with an excitation-current supply
EP1760864A1 (en) * 2005-09-05 2007-03-07 ABB Oy Rotor of an electrical machine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031593A (en) * 1956-10-18 1962-04-24 Westinghouse Electric Corp Dynamoelectric machine
WO1992000626A1 (en) * 1990-06-23 1992-01-09 Robert Bosch Gmbh Armature for high-speed forced-ventilation electric motors running in air containing abrasive dust
US5352948A (en) * 1990-06-23 1994-10-04 Robert Bosch Gmbh Armature for high-speed electric motors force-ventilated in air containing abrasive dust
EP0535334A1 (en) * 1991-10-01 1993-04-07 Asea Brown Boveri Ag Rotor of an electric machine with an excitation-current supply
US5241231A (en) * 1991-10-01 1993-08-31 Asea Brown Boveri Ltd. Rotor of an electric machine having an exciting current supply lead
CH682610A5 (en) * 1991-10-01 1993-10-15 Asea Brown Boveri Rotor of an electric machine having an excitation current supply line.
EP1760864A1 (en) * 2005-09-05 2007-03-07 ABB Oy Rotor of an electrical machine
US7626310B2 (en) 2005-09-05 2009-12-01 Abb Oy Rotor of an electrical machine
CN1937361B (en) * 2005-09-05 2011-01-26 Abb有限公司 Motor rotor

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