SE8803518L - SHORT-ASYNCHRONOUS MOTOR FOR FREQUENCY DRIVE DRIVE - Google Patents

SHORT-ASYNCHRONOUS MOTOR FOR FREQUENCY DRIVE DRIVE

Info

Publication number
SE8803518L
SE8803518L SE8803518A SE8803518A SE8803518L SE 8803518 L SE8803518 L SE 8803518L SE 8803518 A SE8803518 A SE 8803518A SE 8803518 A SE8803518 A SE 8803518A SE 8803518 L SE8803518 L SE 8803518L
Authority
SE
Sweden
Prior art keywords
rotor
core
drive
flux density
motor
Prior art date
Application number
SE8803518A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE8803518D0 (en
SE462251B (en
Inventor
C Sadarangani
Original Assignee
Asea Brown Boveri
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 Asea Brown Boveri filed Critical Asea Brown Boveri
Priority to SE8803518A priority Critical patent/SE462251B/en
Publication of SE8803518D0 publication Critical patent/SE8803518D0/en
Priority to AU43212/89A priority patent/AU4321289A/en
Priority to PCT/SE1989/000535 priority patent/WO1990004280A1/en
Publication of SE8803518L publication Critical patent/SE8803518L/en
Publication of SE462251B publication Critical patent/SE462251B/en

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)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

A squirrel-cage induction motor for frequency convertor operation has a rotor with a plurality of axially extending rotor slots (41) with rotor conductors (4). Those parts (413) of the rotor slots which are facing the rotor surface (11) have a bent shape. Between each rotor conductor and the rotor surface (11) the rotor core has a narrow slit (42). The dimensions and the shape of the core portion (7) located between the rotor slot and the rotor surface are chosen such that the flux -caused by the leakage field of the rotor- in those parts of the rotor core located nearest the slit provides such a flux density that the rotor core operates at or near the knee of the magnetization curve when the load of the motor is equal to the rated load. Preferably, the shape of the core portions (7) is such that, at rated current of the motor, the RMS value of the flux density -caused by the leakage field of the rotor conductors- in that part of the core portions (7) where the flux density is highest lies between 1.5 T and 1.9 T.
SE8803518A 1988-10-04 1988-10-04 SHORT-ASYNCHRONOUS MOTOR FOR FREQUENCY DRIVE DRIVE SE462251B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE8803518A SE462251B (en) 1988-10-04 1988-10-04 SHORT-ASYNCHRONOUS MOTOR FOR FREQUENCY DRIVE DRIVE
AU43212/89A AU4321289A (en) 1988-10-04 1989-10-02 Squirrel-cage induction motor for frequency convertor operation
PCT/SE1989/000535 WO1990004280A1 (en) 1988-10-04 1989-10-02 Squirrel-cage induction motor for frequency convertor operation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8803518A SE462251B (en) 1988-10-04 1988-10-04 SHORT-ASYNCHRONOUS MOTOR FOR FREQUENCY DRIVE DRIVE

Publications (3)

Publication Number Publication Date
SE8803518D0 SE8803518D0 (en) 1988-10-04
SE8803518L true SE8803518L (en) 1990-04-05
SE462251B SE462251B (en) 1990-05-21

Family

ID=20373522

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8803518A SE462251B (en) 1988-10-04 1988-10-04 SHORT-ASYNCHRONOUS MOTOR FOR FREQUENCY DRIVE DRIVE

Country Status (3)

Country Link
AU (1) AU4321289A (en)
SE (1) SE462251B (en)
WO (1) WO1990004280A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4548896A (en) * 1996-02-05 1997-08-28 Hitachi Limited Induction motor and its rotor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE276658C (en) *
DE533919C (en) * 1931-09-19 Sachsenwerk Licht & Kraft Ag Double cage anchor with open or half-open slots in the run-up cage winding
DE534136C (en) * 1931-09-23 Sachsenwerk Licht & Kraft Ag Double or multiple cage runners with separate, cast or injected cage windings
DE624366C (en) * 1936-01-18 Siemens Schuckertwerke Akt Ges Double cage runner
DE3131772A1 (en) * 1981-08-07 1983-02-24 Siemens AG, 1000 Berlin und 8000 München Rotor of an electrical machine having a cage winding

Also Published As

Publication number Publication date
AU4321289A (en) 1990-05-01
SE8803518D0 (en) 1988-10-04
WO1990004280A1 (en) 1990-04-19
SE462251B (en) 1990-05-21

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