1 The output voltage is stable: the high-frequency voltage doubler circuit is applied and the new PWM pulse width modulation technology and the voltage and current double closed-loop feedback technology are applied to improve the power supply adjustment rate and the load adjustment rate so that the voltage stability is high and the ripple is small. 2 comprehensive protection: full protection function with zero protection over-voltage protection over-current protection breakdown protection protection circuit uses nanosecond-level special sensor action fast and reliable effectively protect personal and equipment safety. 3 0.75U function: Add intelligent high-precision 0.75U function one-button button press this button the voltage and current will automatically jump to the 0.75U state which is conducive to the test of zinc oxide arrester. 4ã??zero boost: The boost potentiometer starts from zero adopts imported multi-turn potentiometer the boosting process is stable and the adjustment precision is high. 5 over-voltage setting: over-voltage setting uses digital dialing switch easy to operate and has a high setting accuracy. 6 one-piece design: the choice of integrated design Host and double pressure cylinder is placed in a chassis. The imported high-frequency high-voltage rectifier diode is used to make the double-pressure cylinder small in size improve the efficiency of the whole machine and is easy to carry. 7 reliable performance: the key components use high-performance imported components the pressure roller is coated with special insulating materials good electrical performance strong moisture resistance no leakage. 8 the operation is simple: the instrument interface each function button the layout is reasonable the instructions are clear easy to learn and use.