JPS57113795A - Stator coil change over system of induction electric motor - Google Patents
Stator coil change over system of induction electric motorInfo
- Publication number
- JPS57113795A JPS57113795A JP31681A JP31681A JPS57113795A JP S57113795 A JPS57113795 A JP S57113795A JP 31681 A JP31681 A JP 31681A JP 31681 A JP31681 A JP 31681A JP S57113795 A JPS57113795 A JP S57113795A
- Authority
- JP
- Japan
- Prior art keywords
- over
- stator
- contactors
- changing
- stator windings
- 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
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE:To reduce the number of changing-over contactors and motor lead wires for making small-sized and light by arranging two pieces of stator windings in two steps inside of the stator slots to change-over each winding according to the setting of speed ranges. CONSTITUTION:Inside of the slots of a stator the two respective stator windings C1u'-C1w' and C2u'-C2w' each phase are arranged in two steps and between said stator windings the contactors 1Mu-1Mv and 2Mu-2Mw changing-over the connection thereof are provided. And controlling said contactors, the respective phases stator windings are series-star connected in the low speed rotation range while each phase one stator winding is star or delta connected in the high speed rotation range. Thereby the number of three phase contactors and that of the motor lead wires required for changing-over can be reduced enabling to make small-sized and light as well as to obtain an electric characteristic equal to the former star and two delta changing-over system.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31681A JPS57113795A (en) | 1981-01-07 | 1981-01-07 | Stator coil change over system of induction electric motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31681A JPS57113795A (en) | 1981-01-07 | 1981-01-07 | Stator coil change over system of induction electric motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57113795A true JPS57113795A (en) | 1982-07-15 |
Family
ID=11470495
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP31681A Pending JPS57113795A (en) | 1981-01-07 | 1981-01-07 | Stator coil change over system of induction electric motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57113795A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0378693A1 (en) * | 1988-06-14 | 1990-07-25 | Fanuc Ltd. | Coil winding structure of a.c. motor coil |
US6894455B2 (en) | 2003-04-30 | 2005-05-17 | Remy Inc. | Performance improvement of integrated starter alternator by changing stator winding connection |
-
1981
- 1981-01-07 JP JP31681A patent/JPS57113795A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0378693A1 (en) * | 1988-06-14 | 1990-07-25 | Fanuc Ltd. | Coil winding structure of a.c. motor coil |
US6894455B2 (en) | 2003-04-30 | 2005-05-17 | Remy Inc. | Performance improvement of integrated starter alternator by changing stator winding connection |
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