GB768931A - Improvements in and relating to commutating dynamo electric machines - Google Patents
Improvements in and relating to commutating dynamo electric machinesInfo
- Publication number
- GB768931A GB768931A GB13536/55A GB1353655A GB768931A GB 768931 A GB768931 A GB 768931A GB 13536/55 A GB13536/55 A GB 13536/55A GB 1353655 A GB1353655 A GB 1353655A GB 768931 A GB768931 A GB 768931A
- Authority
- GB
- United Kingdom
- Prior art keywords
- choke
- winding
- resistor
- relating
- transformer
- 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
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/66—Structural association with auxiliary electric devices influencing the characteristic of, or controlling, the machine, e.g. with impedances or switches
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc Machiner (AREA)
Abstract
768,931. Commutator machines. BRITISH THOMSON-HOUSTON CO., Ltd. May 10, 1955 [May 10, 1954], No. 13536/55. Class 35. In a commutator machine carrying undulating current, e.g. a traction motor fed from a rectifier, the tendency for the undulating component of the compole flux to lag due to eddycurrents, is offset by means of a choke or transformer in parallel with the compole winding 3. As shown, the comple winding 3 and series winding 4 are connected in series with a resistor 10, a choke 2 serving to reduce the ripple applied to the motor. A further resistor 9 and choke 8 are connected in parallel with coil 3 and resistor 10 and serve to correct the phase of the ripple current. In a modification, the choke 8 is replaced by the secondary of a transformer, which may be the choke 2, in the input line. In a further modification, a tapping across choke 2 feeds a separate winding on the compoles, and condensers may be used in the secondary circuit.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR768931X | 1954-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB768931A true GB768931A (en) | 1957-02-20 |
Family
ID=9184485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13536/55A Expired GB768931A (en) | 1954-05-10 | 1955-05-10 | Improvements in and relating to commutating dynamo electric machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB768931A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1200930B (en) * | 1961-09-19 | 1965-09-16 | Siemens Ag | Device to improve the commutation of DC machines with reversing pole windings |
| DE1240170B (en) * | 1960-03-11 | 1967-05-11 | Licentia Gmbh | Compensated direct current shunt machine with reversing poles for rapidly changing loads |
| GB2157088A (en) * | 1984-01-04 | 1985-10-16 | Kershaw H A | Improvements in or relating to electric motors and dynamos |
-
1955
- 1955-05-10 GB GB13536/55A patent/GB768931A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1240170B (en) * | 1960-03-11 | 1967-05-11 | Licentia Gmbh | Compensated direct current shunt machine with reversing poles for rapidly changing loads |
| DE1200930B (en) * | 1961-09-19 | 1965-09-16 | Siemens Ag | Device to improve the commutation of DC machines with reversing pole windings |
| GB2157088A (en) * | 1984-01-04 | 1985-10-16 | Kershaw H A | Improvements in or relating to electric motors and dynamos |
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