| 摘要 |
A drive system for operation of a tap changer for voltage regulation of a transformer on load comprises an electric motor (20) connectible to a movable part of a said tap changer for moving this for carrying out a tap change operation. The system comprises an electric converter (33) for connection of an electricity power supply (24) to said electric motor (20) as well as a control arrangement (34) adapted to control the electric converter for controlling the operation of the motor and by that of said tap changer. |
