Scope of application

Huazheng Electric HZZGF-Z series intelligent DC high-voltage generators are mainly used for DC withstand voltage tests on high-voltage electrical equipment such as zinc oxide arresters, power cables, transformers, circuit breakers, generators, etc. or DC leakage current test.

Using AIPWM technology, the inaccurate linearity of PWM technology has been adjusted, so that the accuracy of the instrument has been greatly improved. And use AI technology to set overvoltage protection and overcurrent protection to replace the problem that the digital dial switch can only set the voltage value, but cannot set the current value and voltage drift, and add AI automatic zinc oxide arrester measurement, cable segmentation Withstand voltage test, automatic withstand voltage test function, and can directly print the test report and save the test report, retain the manual mode, add the function of printing under any voltage and current, and the function of segment timing. The instrument has added perpetual calendar and time functions, and the experimental report has time and date.

Technical features

Fully automatic MOA test, complete display of the process of pressure rise and fall, pressure holding time.

Automatic cable segment withstand voltage test, complete display of the boosting process and pressure holding time.

Automatic withstand voltage test, complete display of the process of lifting and lowering, and the holding time.

Adopt AIPWM technology to adjust the inaccurate linearity of PWM, and the precision has been greatly improved. Ripple coefficient≤0.2%.

With segment timing, and printing function under arbitrary voltage and current.

The instrument has added perpetual calendar and time functions, and the experimental report has time and date.

Technical specifications and working methods

1.Voltage output 0-120kV, accuracy ±1% ±1 word

2.Current output 0-2000uA, accuracy ±1% ±1 word

3.With automatic zinc oxide arrester test, cable segment withstand voltage, automatic withstand voltage function

4.It has the function of manually adjusting the voltage output.

5.Working method: intermittent use: rated load 30 minutes, 1.1 times rated voltage use: 10 minutes

6.Working environment: Temperature: -10℃～+40℃

7.Relative humidity: no more than 85% when the room temperature is 25°C (no condensation)

8.Altitude: below 1500 meters