Measurement transducer at high voltage for metal encapsulated, gas insulated high voltage switching system - contains Peltier cooling element inside inner conductor for reduced operating temp.

摘要

The measurement transducer has at least one hollow inner conductor (11), an enclosing outer conductor and a transfer circuit inside the inner conductor converting the electrical measurement signals into light signals which transfer the signal from high to low potential. The measurement electrical signal is produced by the capacitance between a measurement electrode in a recess in the inner conductor and inner conductor. A Peltier cooling element (61) inside the inner conductor in close thermal contact with the transfer circuit (25,26) is supplied with current by a current converter (62) enclosing the inner conductor. USE/ADVANTAGE - Reduced operating temp..