HZJS-E high voltage dielectric loss tester produced by Wuhan Hertz Electric Equipment Co., Ltd. is a high-performance dielectric loss tester. It adopts frequency conversion power supply technology, uses single chip microcomputer and modern electronic technology to automatically convert frequency, A/D conversion and data calculation, and achieves strong anti-interference ability, fast testing speed, high accuracy, fully automatic digitization, and simple operation. The power supply adopts high-power switch power supply, outputs 45Hz and 55Hz pure sine wave, automatically increases pressure, and can provide up to 10KV voltage. It automatically filters 50Hz interference and is suitable for field testing in substations and other places with strong electromagnetic interference. Widely used in the power industry.