GB933858A - Improvements relating to squirrel cage rotors for induction motors - Google Patents

Improvements relating to squirrel cage rotors for induction motors

Info

Publication number
GB933858A
GB933858A GB337659A GB337659A GB933858A GB 933858 A GB933858 A GB 933858A GB 337659 A GB337659 A GB 337659A GB 337659 A GB337659 A GB 337659A GB 933858 A GB933858 A GB 933858A
Authority
GB
United Kingdom
Prior art keywords
rotor
laminations
slots
notches
squirrel cage
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
GB337659A
Inventor
Reginald Donahoe Ball
Robert Edward Ward
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 GB337659A priority Critical patent/GB933858A/en
Publication of GB933858A publication Critical patent/GB933858A/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
    • H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors

Landscapes

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

Abstract

933,858. Electric motors. ENGLISH ELECTRIC CO. Ltd. Jan. 27, 1960 [Jan 30, 1959], No. 3376/59. Class 35. In a squirrel cage rotor, for an induction motor, which includes rotor laminations 10 having tunnelled conductor slots 11 immediately adjacent the outer periphery of the rotor and spaced therefrom by shallow slot-closing bridges, at least the majority of the laminations are notched on the periphery at positions radially aligned with the slots and the bottoms of the notches 12 have a predetermined spacing from the slots so that despite a final turning operation a constant depth of slot-closing bridge is obtained around the rotor. Preferably the notches and slots are punched in one operation, and as shown the end laminations 13 are unnotched to prevent the notches being filled with metal in a rotor whose winding is die-cast. If the winding comprises bars brazed to end rings, all laminations are notched.
GB337659A 1959-01-30 1959-01-30 Improvements relating to squirrel cage rotors for induction motors Expired GB933858A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB337659A GB933858A (en) 1959-01-30 1959-01-30 Improvements relating to squirrel cage rotors for induction motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB337659A GB933858A (en) 1959-01-30 1959-01-30 Improvements relating to squirrel cage rotors for induction motors

Publications (1)

Publication Number Publication Date
GB933858A true GB933858A (en) 1963-08-14

Family

ID=9757154

Family Applications (1)

Application Number Title Priority Date Filing Date
GB337659A Expired GB933858A (en) 1959-01-30 1959-01-30 Improvements relating to squirrel cage rotors for induction motors

Country Status (1)

Country Link
GB (1) GB933858A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010043384A1 (en) * 2010-11-04 2012-05-10 Siemens Aktiengesellschaft Asynchronous machine e.g. power converter-fed asynchronous machine has copper rods having high electrical conductivity, which are arranged within radial outer portions of grooves tapered along axial direction of bundle of laminations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010043384A1 (en) * 2010-11-04 2012-05-10 Siemens Aktiengesellschaft Asynchronous machine e.g. power converter-fed asynchronous machine has copper rods having high electrical conductivity, which are arranged within radial outer portions of grooves tapered along axial direction of bundle of laminations

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