JPS56125955A - Variable speed motor - Google Patents

Variable speed motor

Info

Publication number
JPS56125955A
JPS56125955A JP2763180A JP2763180A JPS56125955A JP S56125955 A JPS56125955 A JP S56125955A JP 2763180 A JP2763180 A JP 2763180A JP 2763180 A JP2763180 A JP 2763180A JP S56125955 A JPS56125955 A JP S56125955A
Authority
JP
Japan
Prior art keywords
load
connection
accordance
taps
output
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.)
Pending
Application number
JP2763180A
Other languages
Japanese (ja)
Inventor
Sadayoshi Hibino
Norio Inagaki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2763180A priority Critical patent/JPS56125955A/en
Publication of JPS56125955A publication Critical patent/JPS56125955A/en
Pending 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
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28—Layout of windings or of connections between windings

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE:To enable to operate the variable speed motor at the most suitable efficiency and power factor consuming a little power by a method wherein plural lead out taps are provided in the stator winding of the induction motor to be used being assembled with an electromangetic coupling and connection of the winding is changed in accordance with load. CONSTITUTION:At the induction motor to be connected to load through the electromagnetic coupling, the plural lead out taps T1-T3 are provided at the middle parts of respective phase windings of the stator winding. Because output P of the induction motor is generally proportional to the third power of number of revolution, connection of the stator winding is changed in accordance with the number of revolution of load using the lead of taps T1-T3. For example, when the lead out taps T1 and TY, T2 and Tz, T3 and TX are connected to form the side line extended delta, output P is reduced to 51% as compared with normal delta connection, and when it is formed in star connection, output can be reduced to 34%. Therefore the most suitable torque characteristic can be obtained in accordance with the condition of load.
JP2763180A 1980-03-05 1980-03-05 Variable speed motor Pending JPS56125955A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2763180A JPS56125955A (en) 1980-03-05 1980-03-05 Variable speed motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2763180A JPS56125955A (en) 1980-03-05 1980-03-05 Variable speed motor

Publications (1)

Publication Number Publication Date
JPS56125955A true JPS56125955A (en) 1981-10-02

Family

ID=12226294

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2763180A Pending JPS56125955A (en) 1980-03-05 1980-03-05 Variable speed motor

Country Status (1)

Country Link
JP (1) JPS56125955A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0865147A1 (en) * 1997-06-01 1998-09-16 Jakob, Karl, Dipl.-Ing.(FH) Electric fan
EP1244194A3 (en) * 2001-03-23 2003-07-09 Denso Corporation Rotary electric machine having combined star-polygon stator winding
EP2717432A1 (en) * 2012-10-05 2014-04-09 ABB Technology AG Rotor structure and electrical machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0865147A1 (en) * 1997-06-01 1998-09-16 Jakob, Karl, Dipl.-Ing.(FH) Electric fan
EP1244194A3 (en) * 2001-03-23 2003-07-09 Denso Corporation Rotary electric machine having combined star-polygon stator winding
US6940201B2 (en) 2001-03-23 2005-09-06 Denso Corporation Rotary electric machine having partially Δ-connected stator winding
EP2717432A1 (en) * 2012-10-05 2014-04-09 ABB Technology AG Rotor structure and electrical machine
WO2014053637A1 (en) * 2012-10-05 2014-04-10 Abb Technology Ag Rotor structure and electrical machine
CN104704715A (en) * 2012-10-05 2015-06-10 Abb技术有限公司 Rotor structure and electrical machine

Similar Documents

Publication Publication Date Title
JPS5429005A (en) Dual-core squirrel-cage motor
JPS56125955A (en) Variable speed motor
JPS5543905A (en) Method of exciting alternating current generator
GB1489997A (en) Speed control of squirrel-cage motors
JPS5322636A (en) Induction-heating system
ES366795A1 (en) Concentric coil windings for three-speed,single-phase induction motor stator
JPS54106818A (en) Control method for induction motor
JPS5439805A (en) Armature winding of revolving electrical machinery
JPS55131294A (en) Controller for synchronous motor
JPS57145599A (en) Multi-stage change-over main shaft driving generating device
JPS5720157A (en) Pole changeable type three-phase motor
JPS561796A (en) Motor
JPS54121917A (en) Induction motor group operation system
GB828734A (en) Improvements in and relating to induction motors
JPS57193982A (en) Operation of 3-phase induction motor
JPS5556457A (en) Dc motor
JPS5445709A (en) Pole changer for single-phase induction motor
JPS57113795A (en) Stator coil change over system of induction electric motor
JPS5728557A (en) Rotor of induction motor
JPS6447287A (en) Star-delta starting method for induction motor
JPS5429006A (en) Dual-core wound-induction motor
JPS5678389A (en) Three-phase induction motor for winding machine
JPS5439806A (en) Armature winding of revolving electrical machinery
JPS5586396A (en) Group running system for induction motor
JPS5622580A (en) Phase converter for alternating current electric rolling stock