In the ETOS TD drive for tap changers, the energy is made available precisely where it is needed – i.e. at the tap-changer cover. The drive commands generated in the control cabinet are transmitted via a cable connection to the motor installed above. This eliminates the need for a rigid drive shaft connection and the complex and time-intensive task of installing it. What’s more, the precise motor torque delivered to the driven tap changer guarantees maximum safety when switching loads. This is because the smart drive can check all key parameters using the OLTC PreCheck function.