The Haefely 9231 high voltage capacitor series consists of a modular HV capacitor, which fitted with an appropriate measuring impedance or with the DDX 9160 or DDX 9161 PD Detector with internal integrated measuring impedance, can be used for partial discharge measurements. When fitted with an AC secondary unit, the capacitors can be used for AC voltage measurements.
The double base design allows for all components, including DDX 9160 or DDX 9161, to be fitted into the base of the coupling capacitor, drastically reducing the number of necessary devices for performing a partial discharge test and saving room in the HV laboratory.
The capacitors are of sturdy and rugged design for indoor operation. The standard design includes a base frame with swivel castors, termination box with BNC connector including surge protection, and an appropriate upper torroid.
Datasheet:
9231 Features
Models available with rated voltage up to 200 kV
Models available with coupling capacitance of 1 or 10 nF
High stability in capacitance values
Large base frame with heavy duty swivel casters
Base frame prepared to add measuring impedance, secondary unit, and PD detector
Optional HV filter available to attenuate interference from power supply and improve signal-to-noise ratio
PD free (< 1 pC)