GB1186144A - Improvements in or relating to Electric Motors. - Google Patents
Improvements in or relating to Electric Motors.Info
- Publication number
- GB1186144A GB1186144A GB7613/68A GB761368A GB1186144A GB 1186144 A GB1186144 A GB 1186144A GB 7613/68 A GB7613/68 A GB 7613/68A GB 761368 A GB761368 A GB 761368A GB 1186144 A GB1186144 A GB 1186144A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- switch
- delta
- feb
- compensate
- 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
- H02P1/26—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor
Abstract
1,186,144. Control of A.C. motors. G. WAURICK. 16 Feb., 1968 [20 Feb., 1967], No. 7613/68. Heading H2J. An induction motor 2 is started by closing switch 9 so that the mid-points 8 of a delta capacitor network are connected to supply lines 4, the capacitors 5 being arranged in parallelpairs in each arm of the delta. After the main switch 10 has been closed, a large leading current is drawn by the parallel branch circuit 3 to compensate for the lagging current taken by the motor. The switch 9 is opened when the motor reaches full speed, so providing a pair of series-connected capacitors in each arm of the delta network. The magnitude of the leading current is now reduced to compensate for the smaller lagging current drawn by the motor. A relay is connected between the terminals of the motor and is associated with the switch 10 to prevent restarting while the motor is still selfexcited.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA67965 | 1967-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1186144A true GB1186144A (en) | 1970-04-02 |
Family
ID=25561067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7613/68A Expired GB1186144A (en) | 1967-02-20 | 1968-02-16 | Improvements in or relating to Electric Motors. |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1638964B2 (en) |
| GB (1) | GB1186144A (en) |
-
1968
- 1968-02-16 GB GB7613/68A patent/GB1186144A/en not_active Expired
- 1968-02-19 DE DE19681638964 patent/DE1638964B2/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE1638964B2 (en) | 1972-02-24 |
| DE1638964A1 (en) | 1971-08-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |