AC/DC High Voltage Generator 1. Small size, light weight, more beautiful, more reliable, easy to operate, and fully functional, making it ideal for field use. It is the most ideal reliable product in the new century.
2. Manufactured with the most advanced technology and processes, it is the first to apply the latest PWM high-frequency pulse width modulation technology and pulse train logic array modulation. It uses high-power IGBT devices and high-frequency technology to increase the frequency up to 100kHz, resulting in higher output voltage stability and smaller ripple coefficient.
3. High precision and accurate measurement. Both voltage and current are digitally displayed, with voltage resolution of 0.1kV and current resolution of 0.1uA. The voltmeter on the control box directly displays the voltage applied to the load test object, eliminating the need for an external voltage divider and simplifying wiring. The instrument can measure leakage current at both high and low voltage ends. The high voltage end uses a circular shielded digital meter display, which is resistant to discharge impact and has good anti-interference performance, suitable for on-site use.
4. High voltage regulation stability, smooth voltage adjustment across the full range. The output voltage adjustment uses an imported single multi-turn potentiometer, ensuring smooth boosting and high adjustment precision, with both coarse and fine adjustment functions. Voltage regulation is better than 0.1%, voltage and current measurement errors are less than 1.0%, and ripple factor is better than 0.5%.
5. Negative polarity output, zero-start, continuously adjustable, with various protection functions such as overvoltage, overcurrent, zero return, grounding protection, and unique disconnection protection. The automatic protection circuit is powerful, with comprehensive and reliable protection, ensuring safe operation. All technical indicators are superior to industry standards and similar products.
6. A high-precision 75% VDC-1mA function has been added, bringing great convenience to zinc oxide arrester measurements. With a simple press, no calculation is needed. The control box of this instrument has a 75% voltage function key. During zinc oxide arrester tests, when the current rises to 1000uA, press the 0.75 button. At this time, the values displayed on the voltmeter and ammeter are the 75% data. After completion, immediately return the boost knob to zero, and also return the fine voltage adjustment knob to zero. Then press the green button to cut off the high voltage and turn off the power switch before proceeding with other tests.
7. Convenient overvoltage setting function, using digital thumbwheel switches to display the set voltage value intuitively, making operation more flexible. The displayed value unit is kV. 8. The voltage doubling cylinder has a sectional structure, providing flexibility and convenience for field use. One machine can serve multiple purposes, making it economical and practical.
1. Before testing, please check that all test wiring, control box, voltage doubling cylinder, and test object grounding wires are properly connected. The test circuit grounding wire should be connected at a single point as required by the instrument manual.
4. For discharging large capacitance test objects, use the PSZGF dedicated discharge resistor rod. When discharging, do not immediately contact the test object with the discharge rod. Instead, gradually approach the test object. At a certain distance, air gap ionization discharge will begin, accompanied by a hissing sound. When the sound stops, the discharge rod can be used for discharge, and finally, directly connect to the ground wire for discharge.
5. When DC high voltage is 200kV and above, even if test personnel wear insulating shoes and stay in safe areas, the spatial electric field distribution of high-voltage DC ions may cause nearby standing individuals to carry different DC potentials. Test personnel should not shake hands with each other or touch grounding bodies with their hands, as this may cause slight electric shock. This phenomenon is more noticeable in dry areas and winter, but due to the small energy, it generally does not cause harm to the human body.
6. The PSZGF series high-frequency DC high voltage generator control box power supply is AC220V±10%, 50Hz. If the power supply is through a 1/1 isolation transformer or on-site self-generated power, one point of the power supply must be artificially connected to the earth.
