The standard base frame is fitted with castors for mobility (from 100 kV). Upon request, large and heavy versions can be equipped with air cushions.
They are built for indoor use. with a double toroid electrode if they shall be used with large HV connections or act as HV filters.

By adding optionally an inductance to the coupling capacitor, they form the high voltage filter KKF, which attenuates interferences coming from the high voltage reactor / transformer side.

The high voltage filter inductance is connected between the reactor / transformer and the coupling capacitor or between two coupling capacitors.

Typical insertion loss (50 Ω / 50 Ω at 40 kHz – 400 kHz: > 20dB