GB176714A - Improvements in and relating to electric motor controllers - Google Patents
Improvements in and relating to electric motor controllersInfo
- Publication number
- GB176714A GB176714A GB1431921A GB1431921A GB176714A GB 176714 A GB176714 A GB 176714A GB 1431921 A GB1431921 A GB 1431921A GB 1431921 A GB1431921 A GB 1431921A GB 176714 A GB176714 A GB 176714A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resistance
- arm
- relay
- motor
- subject
- 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
- H02P1/18—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual dc motor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Direct Current Motors (AREA)
Abstract
176,714. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co.). May 23, 1921. Automatic starters which exclude resistance from the motor circuit by the action of a relay or the like are provided with means such as a rheostat arm 5 for manual setting of the amount of resistance subject to exclusion. In the apparatus shown, current, when turned on, flows from one main L, through an arm 5, a contact 9, a lead 14, and resistance r, to the motor armature A and the other main L'. An automatic delayedaction relay 3 subject to the back electromotive force of the armature makes connection through a contact 8, an insulated tip of the arm 5, and a portion of the resistance r, to the motor, the amount of resistance excluded depending on the previous setting of the arm 5. The arm may be moved afterwards to insert further resistance or to take it out completely and to vary field resistance r<1>. A relay 4 temporarily short-circuits any resistance that may be in the field at starting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1431921A GB176714A (en) | 1921-05-23 | 1921-05-23 | Improvements in and relating to electric motor controllers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1431921A GB176714A (en) | 1921-05-23 | 1921-05-23 | Improvements in and relating to electric motor controllers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB176714A true GB176714A (en) | 1922-03-16 |
Family
ID=10039039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1431921A Expired GB176714A (en) | 1921-05-23 | 1921-05-23 | Improvements in and relating to electric motor controllers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB176714A (en) |
-
1921
- 1921-05-23 GB GB1431921A patent/GB176714A/en not_active Expired
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