FIELD: electrical engineering. SUBSTANCE: drive has electric motor 1 connected to power supply through two break contacts 3,4 and two make contacts 4, 5 of relay 7 with coils 8,9 saving information about power supply interruption. Coils of relay 7 are shorted out by capacitors 12,13. Drive also has limit switches 10, 11 and resistor 15. Relay is provided with additional change-over contact group 14. In case of interruption of power supply electric motor maintains its sense of rotation. EFFECT: enlarged functional capabilities due to retaining sense of rotation in case of interruption of power supply. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| A C DRIVE | 1993 |
|
RU2047264C1 |
| GEAR FOR CONTROL OVER REVERSIBLE ASYNCHRONOUS ELECTRIC MOTOR | 1989 |
|
RU2007833C1 |
| ALTERNATING-CURRENT DRIVE | 1991 |
|
RU2042257C1 |
| APPARATUS FOR SHUT-OFF OF GAS OR LIQUID FUEL OF THERMAL POWER PLANT | 1992 |
|
RU2043575C1 |
| REVERSIBLE AUTOMATIC DC MOTOR DRIVE | 0 |
|
SU1718356A1 |
| DIRECT-CURRENT REVERSING DRIVE | 1992 |
|
RU2038687C1 |
| D C REVERSIBLE ELECTRIC MOTOR DRIVE | 0 |
|
SU1742972A1 |
| DEVICE FOR CONTROLLING THREE-PHASE INDUCTION ELECTRIC MOTOR | 0 |
|
SU1577035A1 |
| DEVICE FOR TEMPERATURE PROTECTION OF ELECTRIC MOTOR WITH GROUNDED FRAME | 0 |
|
SU1582258A1 |
| CONTROL GEAR FOR THREE-PHASE INDUCTION MOTOR | 1993 |
|
RU2047263C1 |
