JPS6447287A - Star-delta starting method for induction motor - Google Patents
Star-delta starting method for induction motorInfo
- Publication number
- JPS6447287A JPS6447287A JP20221787A JP20221787A JPS6447287A JP S6447287 A JPS6447287 A JP S6447287A JP 20221787 A JP20221787 A JP 20221787A JP 20221787 A JP20221787 A JP 20221787A JP S6447287 A JPS6447287 A JP S6447287A
- Authority
- JP
- Japan
- Prior art keywords
- delta connection
- resistances
- transient
- star
- delta
- 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
- Motor And Converter Starters (AREA)
Abstract
PURPOSE:To prevent generation of an excessive rush current by selecting the value of a resistance to be connected in series with each coil at the time of a transient delta connection so that the ratio of a torque directly after switching to said transient delta connection to a torque at the time of a delta connection is included in the value from 1/2 to 3/4. CONSTITUTION:First, coils 1A-1C with each phase are started in a state where they are connected in a star. Next, resistances 2A-2C are connected in parallel with respective coils. Then, said resistances 2A-2C are connected in series with respective coils to form a transient delta connection state. Subsequently, the resistances 2A-2C are short-circuited and respective coils are connected in a delta. In this case, the values of the resistances 2A-2C are selected so that the ratio of a torque directly after switching to the transient delta connection to a torque directly after switching to the delta connection is between 1/2 and 3/4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20221787A JPS6447287A (en) | 1987-08-13 | 1987-08-13 | Star-delta starting method for induction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20221787A JPS6447287A (en) | 1987-08-13 | 1987-08-13 | Star-delta starting method for induction motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6447287A true JPS6447287A (en) | 1989-02-21 |
Family
ID=16453898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20221787A Pending JPS6447287A (en) | 1987-08-13 | 1987-08-13 | Star-delta starting method for induction motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6447287A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5531268A (en) * | 1993-11-24 | 1996-07-02 | Showa Aluminum Corporation | Heat exchanger |
| US6739386B2 (en) * | 2001-01-26 | 2004-05-25 | Modine Manufacturing Company | Heat exchanger with cut tubes |
| GB2485375A (en) * | 2010-11-11 | 2012-05-16 | Ford Global Tech Llc | A method and apparatus for limiting the in-rush current to a starter motor of a motor vehicle. |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58141687A (en) * | 1982-02-17 | 1983-08-23 | Toshiba Corp | Star-delta starter |
-
1987
- 1987-08-13 JP JP20221787A patent/JPS6447287A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58141687A (en) * | 1982-02-17 | 1983-08-23 | Toshiba Corp | Star-delta starter |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5531268A (en) * | 1993-11-24 | 1996-07-02 | Showa Aluminum Corporation | Heat exchanger |
| US6739386B2 (en) * | 2001-01-26 | 2004-05-25 | Modine Manufacturing Company | Heat exchanger with cut tubes |
| GB2485375A (en) * | 2010-11-11 | 2012-05-16 | Ford Global Tech Llc | A method and apparatus for limiting the in-rush current to a starter motor of a motor vehicle. |
| US8878481B2 (en) | 2010-11-11 | 2014-11-04 | Ford Global Technologies, Llc | Method and apparatus for limiting in-rush current to a starter motor of a vehicle |
| GB2485375B (en) * | 2010-11-11 | 2017-02-22 | Ford Global Tech Llc | A method and apparatus for limiting the in-rush current to a starter motor of a motor vehicle |
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