JPS5490508A - Wound-rotor induction motor - Google Patents

Wound-rotor induction motor

Info

Publication number
JPS5490508A
JPS5490508A JP15726177A JP15726177A JPS5490508A JP S5490508 A JPS5490508 A JP S5490508A JP 15726177 A JP15726177 A JP 15726177A JP 15726177 A JP15726177 A JP 15726177A JP S5490508 A JPS5490508 A JP S5490508A
Authority
JP
Japan
Prior art keywords
star
connection
low speed
rotor
wound
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
JP15726177A
Other languages
Japanese (ja)
Inventor
Shiro Amemori
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 JP15726177A priority Critical patent/JPS5490508A/en
Publication of JPS5490508A publication Critical patent/JPS5490508A/en
Pending legal-status Critical Current

Links

Landscapes

  • Induction Machinery (AREA)

Abstract

PURPOSE: To suppress a rotor induced voltage to a low level at the time of low speed of the motor, by means of switching a selection of the rotor winding connection, during an operation of the wound-rotor induction motor, from star to delta, from star to dublestar, from star to half-star, etc.
CONSTITUTION: An operation is made by a selector switch 4 with a connection at high speed side H switched to star and a connection at low speed side L switched to delta. In such manner of the connection, a current, flowing in a rotor winding 1, a collector ring 2, and a brush 3, comes to be as shown by a broken line in the drawing at low speed side L after switching the connection, and even for a cooling function decreasing at the time of low speed in a self-ventilated system, a decrease of the current I enables an operation of speed control to a considerable low speed.
COPYRIGHT: (C)1979,JPO&Japio
JP15726177A 1977-12-28 1977-12-28 Wound-rotor induction motor Pending JPS5490508A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15726177A JPS5490508A (en) 1977-12-28 1977-12-28 Wound-rotor induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15726177A JPS5490508A (en) 1977-12-28 1977-12-28 Wound-rotor induction motor

Publications (1)

Publication Number Publication Date
JPS5490508A true JPS5490508A (en) 1979-07-18

Family

ID=15645776

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15726177A Pending JPS5490508A (en) 1977-12-28 1977-12-28 Wound-rotor induction motor

Country Status (1)

Country Link
JP (1) JPS5490508A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0718962A1 (en) * 1994-04-18 1996-06-26 Fanuc Ltd. Method and device for lowering induced voltage of induction motor
JP2020171075A (en) * 2019-04-01 2020-10-15 東芝三菱電機産業システム株式会社 Wound-rotor, wound-rotor induction motor, and starting method of wound-rotor induction motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0718962A1 (en) * 1994-04-18 1996-06-26 Fanuc Ltd. Method and device for lowering induced voltage of induction motor
EP0718962A4 (en) * 1994-04-18 1996-07-31
JP2020171075A (en) * 2019-04-01 2020-10-15 東芝三菱電機産業システム株式会社 Wound-rotor, wound-rotor induction motor, and starting method of wound-rotor induction motor

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