Damped-capacitive impulse voltage dividers series CR are optimized for high dynamic behaviour and can be used to measure full and tail chopped lightning impulse voltages, switching impulses and AC voltages. They meet all requirements of IEC 60060-2 in particular those with respect to measuring accuracy and step response. The divider can also serve as a base load for the impulse voltage generator.

They are designed for indoor operation. Depending on the voltage rating, the high voltage part of the dividers consists of one or several oil-filled capacitors which are housed in cylinders made from glass fiber reinforced epoxy resin. A damping resistance is inserted between the capacitor elements of the unit and acts as a distributed internal resistive element. A second damping resistance is fitted externally at the beginning of the HV lead.Above 1000 kV rated L. I. voltage the dividers are equipped with toroidal HV electrodes to guarantee corona-free operation. The electrode is designed depending on the rated L.I. and negative S.I. levels.

A secondary unit is fixed at the bottom of the divider & consists of a capacitor and a damping resistor of low inductance both arranged in a co-ax design. This unit can be easily exchanged and connects to the control and measuring system.