GB392991A - Improvements in and relating to systems of electric motor control - Google Patents
Improvements in and relating to systems of electric motor controlInfo
- Publication number
- GB392991A GB392991A GB34646/31A GB3464631A GB392991A GB 392991 A GB392991 A GB 392991A GB 34646/31 A GB34646/31 A GB 34646/31A GB 3464631 A GB3464631 A GB 3464631A GB 392991 A GB392991 A GB 392991A
- Authority
- GB
- United Kingdom
- Prior art keywords
- driving motors
- auxiliary
- machines
- asynchronous
- speed
- 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
- H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
- H02P5/74—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more ac dynamo-electric motors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Multiple Motors (AREA)
Abstract
392,991. Maintaining equal speeds of motors. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) Dec. 14,1931, No. 34646. Convention date, Dec. 13, 1930. [Class 38 (iii).] In a multi-motor drive. e.g. for a printing- machine, in which the individual driving motors are electrically interconnected to ensure synchronous operation, the driving motors each drive an auxiliary asynchronous machine, and all the auxiliary asynchronous machines are electrically coupled on their stator and rotor sides, but are energized only over that speed range in which the synchronizing effect of the connections between the driving motors is small. With asynchronous driving motors the auxiliary asynchronous machines are energized only during high speed operation The auxiliary machines may have a different number of poles from that of the driving motors, and may rotate in opposition to their fields. The drum controller used for varying the starting and speed regulating resistances may also act directly or through a relay, to connect the auxiliary machines to the supply for positions corresponding to medium speed up to high speed. Specification 391,239 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE392991X | 1930-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB392991A true GB392991A (en) | 1933-06-01 |
Family
ID=6388929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34646/31A Expired GB392991A (en) | 1930-12-13 | 1931-12-14 | Improvements in and relating to systems of electric motor control |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB392991A (en) |
-
1931
- 1931-12-14 GB GB34646/31A patent/GB392991A/en not_active Expired
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