GB1097427A - Improvements in or relating to starters for alternating current motors - Google Patents
Improvements in or relating to starters for alternating current motorsInfo
- Publication number
- GB1097427A GB1097427A GB1430965A GB1430965A GB1097427A GB 1097427 A GB1097427 A GB 1097427A GB 1430965 A GB1430965 A GB 1430965A GB 1430965 A GB1430965 A GB 1430965A GB 1097427 A GB1097427 A GB 1097427A
- Authority
- GB
- United Kingdom
- Prior art keywords
- primary winding
- winding
- starting period
- circuit
- primary
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/26—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor
- H02P1/28—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor by progressive increase of voltage applied to primary circuit of motor
Abstract
1,097,427. Control of A.C. motors. T. KAWABE. April 5, 1965, No. 14309/65. Heading H2J. A starter for an A.C. motor comprises a laminated core having a primary winding in circuit with the motor, and a secondary winding whose ampere-turns are adapted to balance those of the primary winding. Initially, the secondary winding is open-circuited so that t he reactance of the primary winding reduces the motor current. At the end of the starting period, the secondary circuit is closed, whereby the impedance of the primary winding is reduced to a low value. The secondary circuit may comprise a variable impedance. A relay for closing the secondary circuit may be controlled by local or remote push-buttons associated with signal lamps, or time-control of the relay may be provided. A part of the primary winding may be removed at the end of the starting period, the remaining portion cooperating with the secondary winding. The primary and secondary windings may be connected in parallel at the end of the starting period.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1430965A GB1097427A (en) | 1965-04-05 | 1965-04-05 | Improvements in or relating to starters for alternating current motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1430965A GB1097427A (en) | 1965-04-05 | 1965-04-05 | Improvements in or relating to starters for alternating current motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1097427A true GB1097427A (en) | 1968-01-03 |
Family
ID=10038853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1430965A Expired GB1097427A (en) | 1965-04-05 | 1965-04-05 | Improvements in or relating to starters for alternating current motors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1097427A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2354658A1 (en) * | 1976-06-10 | 1978-01-06 | Siemens Ag | STARTING DEVICE FOR ROTOR MOTORS IN SINGLE-PHASE OR POLY-PHASE SHORT-CIRCUIT |
| EP0062850A1 (en) * | 1981-04-14 | 1982-10-20 | Siemens Aktiengesellschaft | Iron core choke coil with an air gap for starting a single or polyphase squirrel cage asynchronous motor with a low starting torque |
| GB2212348A (en) * | 1987-11-10 | 1989-07-19 | Hawker Controls Ltd | Improvements in circuits for starting electric motors |
| FR2700427A1 (en) * | 1993-01-09 | 1994-07-13 | Smiths Industries Plc | Device for controlling an alternating current delivered to a heating element |
-
1965
- 1965-04-05 GB GB1430965A patent/GB1097427A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2354658A1 (en) * | 1976-06-10 | 1978-01-06 | Siemens Ag | STARTING DEVICE FOR ROTOR MOTORS IN SINGLE-PHASE OR POLY-PHASE SHORT-CIRCUIT |
| EP0062850A1 (en) * | 1981-04-14 | 1982-10-20 | Siemens Aktiengesellschaft | Iron core choke coil with an air gap for starting a single or polyphase squirrel cage asynchronous motor with a low starting torque |
| GB2212348A (en) * | 1987-11-10 | 1989-07-19 | Hawker Controls Ltd | Improvements in circuits for starting electric motors |
| GB2212348B (en) * | 1987-11-10 | 1992-04-08 | Hawker Controls Ltd | Improvements in circuits for starting electric motors |
| FR2700427A1 (en) * | 1993-01-09 | 1994-07-13 | Smiths Industries Plc | Device for controlling an alternating current delivered to a heating element |
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