| 摘要 |
The invention relates to a tap changer for switching between winding taps of a tap transformer. Said tap changer comprises an oil vessel, the wall of said oil vessel comprising stationary contacts. A rotatable drive shaft is provided inside the oil vessel, said drive shaft supporting the moveable switching means for connecting the stationary contacts and/or is mechanically connected thereto. A tap changer head is arranged above said oil vessel, is connected thereto and comprises means for transmitting a rotational movement onto the drive shaft. According to the invention, a motor drive which is an integral component of the tap changer is arranged above the tap changer head, said motor drive comprising an electromotor which is in direct mechanical connection with the drive shaft and which also comprises a control mechanism which can be driven by the electromotor. |
