GB121057A - Improvements in Electric Motor Controllers. - Google Patents
Improvements in Electric Motor Controllers.Info
- Publication number
- GB121057A GB121057A GB5110/18A GB511018A GB121057A GB 121057 A GB121057 A GB 121057A GB 5110/18 A GB5110/18 A GB 5110/18A GB 511018 A GB511018 A GB 511018A GB 121057 A GB121057 A GB 121057A
- Authority
- GB
- United Kingdom
- Prior art keywords
- windings
- shunt
- circuit
- winding
- resistance
- 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
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/03—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stopping Of Electric Motors (AREA)
- Control Of Direct Current Motors (AREA)
Abstract
121,057. Igranic Electric Co., (Cutler- Hammer Manufacturing Co.). March 22, 1918. Systems for continuous-current motors only.- In a system of control for electric motors, a reversing-controller is associated with electro-responsive switches having shunt windings connected on one side to the supply circuit and on the other to an intermediate point of the series resistance. The shunt windings are ineffective until the whole of the series resistance has been cut out. The controller 2 is provided with contacts 10 to close a dynamic braking-circuit in its zero position, and with contacts 11<a>, 11<b>, 12 for reversing the connexions of the motor armature. The starting-contactors 3, 4, 5 have series operating and lock-out windings 7, 8 and are operated automatically to short-circuit the resistances r, r<1>, r<2>. The contactor 5 which short-circuits all the windings 7, 8 is held closed by a. shunt winding 9, and a further increase in speed is obtained by the switch 6 rising to insert the resistance r<3> in the shunt field circuit. The winding of the switch 6 and the winding 9 of the contactor 5 are connected in parallel between the main Land the middle of the resistance r<1> across the armature a. This connexion prevents these windings from being active to cause premature closure of the switches during reversal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5110/18A GB121057A (en) | 1918-03-22 | 1918-03-22 | Improvements in Electric Motor Controllers. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5110/18A GB121057A (en) | 1918-03-22 | 1918-03-22 | Improvements in Electric Motor Controllers. |
Publications (1)
Publication Number | Publication Date |
---|---|
GB121057A true GB121057A (en) | 1918-12-05 |
Family
ID=32342044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5110/18A Expired GB121057A (en) | 1918-03-22 | 1918-03-22 | Improvements in Electric Motor Controllers. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB121057A (en) |
-
1918
- 1918-03-22 GB GB5110/18A patent/GB121057A/en not_active Expired
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