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It can be chosen as PD sensor for Techimp PDCheck, PDScope or PDBaseII systems. It is suitable for on line or off line PD tests onrotating machines, for both spot measurements and monitoring applications. A BNC termination is available to connect the coupler through a coaxial cable.
The high voltage is applied to the coupler through the voltage tap on the top. The capacitive divider includes, in the base, a measurement impedance (Zm) which allows both PD and synchronization signals (i.e. reference voltage) to be derived. The base includes also a surge arrester which limits the maximum transient output voltage.