Abstract

The article discusses systems developed using an innovative approach to measuring partial discharges, their advantages over traditional methods of monitoring cable lines and electrical equipment, as well as the principles of their operation. The design of the systems is based on a special broadband sensor-antenna which provides remote recording of both partial discharge pulses and the phase of alternating current flowing in the object of measurement without taking the equipment under test out of operation. Due to the wireless nature and system compact dimensions, partial discharge measurements can perform in previously inaccessible conditions, significantly expanding the capabilities of this diagnostic method. The partial discharge measurements are an up-to-date method for predictive diagnostics of cable systems and are necessary for the condition-based maintenance.

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