GB353816A - Improvements relating to electric motor starting systems - Google Patents
Improvements relating to electric motor starting systemsInfo
- Publication number
- GB353816A GB353816A GB3807830A GB3807830A GB353816A GB 353816 A GB353816 A GB 353816A GB 3807830 A GB3807830 A GB 3807830A GB 3807830 A GB3807830 A GB 3807830A GB 353816 A GB353816 A GB 353816A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- coil
- resistance
- coils
- switch
- 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
- H02P1/54—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting two or more dynamo-electric motors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor And Converter Starters (AREA)
Abstract
353,816. Master control of several motors. SUNDERLAND FORGE & ENGINEERING CO., Ltd. and PFOB, S., St. Luke's Road, Pallion, Sunderland. Dec. 17, 1930, No. 38078. [Class 38 (iii).] In a starting system for a number of motors in which each motor in turn is first connected to a common starter, and when up to speed is transferred to the supply mains, a common resistance is provided so that when an attempt is made to start two or more motors simultaneously or to start one motor before a second has been brought up to speed, the current is insufficient to operate the motor contactor coils. When a button A is pressed, coils s, n are energized by a circuit passing through the common resistance K. Switches S<1>, N<1>, W close, and the motor M receives current through a starting resistance R. When the switch S<1> closes auxiliary switches s<1>, s<2> close, the former completing a maintaining circuit for the coils u, s through a coil t, independent of the button A. The switch T therefore closes to energize coils V, E, the former actuating the plunger v<1> to cut out the resistance R at a rate regulated by the coil E. When all the resistance is out and the motor M is up to speed, contacts 13, 14 are closed and a circuit is completed for a coil p through switch s<2> and resistance K. As a result the switches P<1>, p<1> are actuated, the former placing the motor M across the supply mains and the latter de-energizing the coil s but closing a maintaining circuit for the coil p, n. When the switch S<1> opens switches s<1>, s<2> also open, the former de-energizing the coil t and breaking the circuit for coils V, E, so that the apparatus is ready for starting a second motor. Specification 324,360, [Class 38 (iii), Electric motor control systems &c.], is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3807830A GB353816A (en) | 1930-12-17 | 1930-12-17 | Improvements relating to electric motor starting systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3807830A GB353816A (en) | 1930-12-17 | 1930-12-17 | Improvements relating to electric motor starting systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB353816A true GB353816A (en) | 1931-07-30 |
Family
ID=10401022
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3807830A Expired GB353816A (en) | 1930-12-17 | 1930-12-17 | Improvements relating to electric motor starting systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB353816A (en) |
-
1930
- 1930-12-17 GB GB3807830A patent/GB353816A/en not_active Expired
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