RELATIVE DIELECTRIC LOSS AND CAPACITANCE TESTER

摘要

A relative dielectric loss and capacitance tester comprises a portable box body and a circuit device arranged in the portable box body; the circuit device comprises an operation panel, a battery power management unit (1), a wireless communication unit (2), a measurement unit (3) and a display control unit (4); the display control unit (4) is in bidirectional signal electric connection with the wireless communication unit (2) and the measurement unit (3), respectively; the battery power management unit (1) serves to provide power while working; during operation, the measurement unit (3) is responsible for acquisition of PT secondary-side voltages and end shield leakage current data and for digital signal processing under the control of the display control unit (4); the display control unit (4) accomplishes man-machine interaction via a keyboard, the measurement unit (3) is controlled to start measurements and read, in real time, measurement data from the measurement unit (3) for purposes of real-time display, storage, printing and output; and when needed, the display control unit (4) uploads the data in real time to a matched upper computer via the wireless communication unit (2), with an aim of carrying out synchronous monitoring. The tester is structurally compact and convenient to carry, and has complete functions, high testing precision and great convenience in operation when in use.