FIELD: electrical engineering; starting induction motors.
SUBSTANCE: proposed process for starting induction motors includes voltage supply to stator windings and motor disconnection from supply mains. Voltage of amplitude equal to that of supply voltage is first applied to stator windings and then motor is disconnected from supply mains in sequential time intervals of π/3 electrical degrees from instant of voltage application at supply frequency of 50 Hz (0.0033 s) and switched over to dynamic braking condition for same time of π/3 electrical degrees at supply frequency of 50 Hz (0.0033 s), whereupon voltage of amplitude equal to that of supply voltage is applied again to stator windings.
EFFECT: enhanced quality of starting characteristics.
1 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ASYNCHRONOUS MOTOR START-UP METHOD | 2014 |
|
RU2572097C1 |
| ASYNCHRONOUS MOTOR START-UP METHOD | 2015 |
|
RU2624777C2 |
| DEVICE FOR DYNAMIC BRAKING OF INDUCTION MOTOR | 0 |
|
SU1812609A1 |
| AC ELECTRIC MOTOR DRIVE | 0 |
|
SU1753574A1 |
| ASYNCHRONOUS VALVE CASCADE | 2011 |
|
RU2474951C1 |
| METHOD FOR AUTOMATIC START-UP AND BRAKING OF ELECTRIC DRIVES OF INDEPENDENT ELECTRIC POWER SOURCE OF COMPARABLE POWER | 2014 |
|
RU2596165C2 |
| METHOD OF REGULATION OF ROTATION FREQUENCY OF ASYNC ENGINE | 1992 |
|
RU2027299C1 |
| CONTROLLED ELECTRIC DRIVE WITH ADVANCED RELIABILITY PERFORMANCE | 2012 |
|
RU2488216C1 |
| CONTROL OVER LIFT INDUCTION MOTOR STARTING | 2014 |
|
RU2575523C1 |
| METHOD OF SAMPLED-DATA CONTROL OF ROTATIONAL SPEED OF ASYNCHRONOUS MOTOR | 0 |
|
SU1072227A1 |
