JPS5523726A - Starting of three-phase induction motor - Google Patents
Starting of three-phase induction motorInfo
- Publication number
- JPS5523726A JPS5523726A JP9359978A JP9359978A JPS5523726A JP S5523726 A JPS5523726 A JP S5523726A JP 9359978 A JP9359978 A JP 9359978A JP 9359978 A JP9359978 A JP 9359978A JP S5523726 A JPS5523726 A JP S5523726A
- Authority
- JP
- Japan
- Prior art keywords
- windings
- starting
- induction motor
- phase induction
- circuit
- 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 obtain a good wave form for the magnetomotive force of a three- phase induction motor in starting and in stationary driving, by connecting prescribed first and second windings to each other as an n-delta circuit (n is a positive integer) in starting and by connecting the first and the second windings to each other as a 2n- delta circuit in stationary driving.
CONSTITUTION: The three-phase induction motor comprises the first windings U1, V1, W1 whose parallel circuit number is n and which have the same number as the pairs of poles per phase and are located at a spacing of 120°, and the second windings U2, V2, W2 whose parallel circuit number is n and which have almost the same construction and are located among the first windings. In starting the motor, the first windings and the second windings in prescribed positions are coupled in series with each other (U1 and W2, V1 and U2, W1 and V2) as a delta circuit among the terminals R, S, T of a power source to reduce the starting voltage. In stationarily driving the motor, switches K1, K2, K3 are closed and the first windings and the second windings in prescribed positions are coupled in parallel with each other (U1 and U2, V1 and W1 and W2) as a 2-delta circuit.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9359978A JPS5523726A (en) | 1978-08-02 | 1978-08-02 | Starting of three-phase induction motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9359978A JPS5523726A (en) | 1978-08-02 | 1978-08-02 | Starting of three-phase induction motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5523726A true JPS5523726A (en) | 1980-02-20 |
Family
ID=14086772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9359978A Pending JPS5523726A (en) | 1978-08-02 | 1978-08-02 | Starting of three-phase induction motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5523726A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6787960B2 (en) | 2001-06-15 | 2004-09-07 | Eaton Corporation | AC induction motor and method of starting same |
-
1978
- 1978-08-02 JP JP9359978A patent/JPS5523726A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6787960B2 (en) | 2001-06-15 | 2004-09-07 | Eaton Corporation | AC induction motor and method of starting same |
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