JPS5490508A - Wound-rotor induction motor - Google Patents
Wound-rotor induction motorInfo
- 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
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
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)
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 |
-
1977
- 1977-12-28 JP JP15726177A patent/JPS5490508A/en active Pending
Cited By (3)
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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