GB834330A - Improvements relating to the dynamic braking of induction motors - Google Patents
Improvements relating to the dynamic braking of induction motorsInfo
- Publication number
- GB834330A GB834330A GB2362357A GB2362357A GB834330A GB 834330 A GB834330 A GB 834330A GB 2362357 A GB2362357 A GB 2362357A GB 2362357 A GB2362357 A GB 2362357A GB 834330 A GB834330 A GB 834330A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contactor
- speed winding
- improvements relating
- dynamic braking
- induction motors
- 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
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
- H02P25/18—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays
- H02P25/20—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays for pole-changing
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stopping Of Electric Motors (AREA)
Abstract
834,330. Control of A.C. motors. BRITISH THOMSON-HOUSTON CO. Ltd. July 18, 1958 [July 25, 1957], No. 23623/57. Class 38 (3). An induction motor is decelerated by opening contactor 4 to disconnect a high-speed winding 1 and then closing contactor 5 to energize a low-speed winding 2. The contactor 5 has additional contacts 6 which close simultaneously with or before the closure of the other contacts of the contactor to connect capacitors 7 across the terminals of the high-speed winding 1. A braking effect is thereby produced since the high-speed winding is self-excited with lowfrequency currents. In another arrangement, the additional contacts are provided on the contactor 4 and are adapted to connect each of three capacitors across appropriate pairs of phases of the high-speed winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2362357A GB834330A (en) | 1957-07-25 | 1957-07-25 | Improvements relating to the dynamic braking of induction motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2362357A GB834330A (en) | 1957-07-25 | 1957-07-25 | Improvements relating to the dynamic braking of induction motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB834330A true GB834330A (en) | 1960-05-04 |
Family
ID=10198644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2362357A Expired GB834330A (en) | 1957-07-25 | 1957-07-25 | Improvements relating to the dynamic braking of induction motors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB834330A (en) |
-
1957
- 1957-07-25 GB GB2362357A patent/GB834330A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB834330A (en) | Improvements relating to the dynamic braking of induction motors | |
| GB1515339A (en) | Elevator system | |
| GB1515340A (en) | Elevator system | |
| CA559118A (en) | Voltage equalizer for unbalanced loads on a three-phase alternator | |
| GB838881A (en) | Improvements in the dynamic braking of induction motors | |
| GB1331258A (en) | Braking of rotary electrical machines | |
| GB742881A (en) | Improvements in and relating to a closure for an electric switch cabinet | |
| CA589252A (en) | Capacitor-excited asynchronous alternators for single-phase loads | |
| AU252555B2 (en) | Combination electrical and mechanical can separating means on continuous welding machines | |
| CA596862A (en) | High speed rotor for dynamo electric machine | |
| AU291245B2 (en) | Convertible three-phase/single-phase induction motor, with condenser braking: circuit and switchgear | |
| AU6740360A (en) | Combination electrical and mechanical can separating means on continuous welding machines | |
| AU5724160A (en) | Improvements inor relating to three-phase or polyphase synchronous motors | |
| AU6604765A (en) | Convertible three-phase/single-phase induction motor, with condenser braking: circuit and switchgear | |
| AU258187B2 (en) | Variable speed electric motors | |
| GB881983A (en) | Improvements in the dynamic braking of induction motors | |
| AU235554B2 (en) | Improvements in and relating to electrical junction boxes, switch boxes andthe like | |
| CA590915A (en) | Electrical contactor | |
| CA598817A (en) | Electrical contactor | |
| CA631792A (en) | Three-compensator three-phase relays | |
| AU219602B2 (en) | Three-phase magnetic circuits | |
| CA534513A (en) | Overhead electric line and conductor therefor | |
| GB1042106A (en) | Improved braking arrangement for a.c. motors | |
| AU254697B2 (en) | Improvements in electric motors | |
| AU1507456A (en) | Improvements in inertia-ope rated electric switches |