1. During the cable withstand voltage test, the boost process should be uniform and slow, and the decompression process should also be uniform and slow. At the same time, a protective water resistance should be added to the high-voltage output end. Otherwise, the reverse voltage may damage the instrument.
2. When the instrument is tested, the grounding must be good, and the grounding grid or ground pile should be selected, and the test cannot be performed without grounding.
3. The staff who use the DC high voltage generator must have professionals with a "high voltage test certificate".
4. To use this instrument, the user must follow Article 168 of the "Electrical Safety Regulations" and install two obvious disconnect points before the working power supply enters the tester. When replacing the test product and wiring, the two power disconnect points should be clearly disconnected first.
5. Before the test, please check whether the grounding wires of all test wiring, control box, pressure doubler and test product are well connected. The grounding wire of the test circuit should be grounded at one point as shown in this manual.
6. For the discharge of large capacitor samples, ZS special discharge resistance rods should be used to discharge the samples. When discharging, the discharge rod should not be brought into contact with the test product immediately. The discharge rod should be gradually approached to the test product. When there is a certain distance in the air gap, it will begin to discharge freely. There will be a hissing noise. When there is no sound, the discharge rod can be used to discharge. Finally, connect the ground directly. Discharge.
7. When the DC high voltage is 200kV and above, although the tester wears insulated shoes and is in an area beyond a safe distance, due to the influence of the high voltage DC ion spatial electric field distribution, several nearby standing human bodies will have different DC currents. Bit. The test personnel should not shake hands or touch the grounding body with their hands, otherwise there will be a slight electric shock. This phenomenon is more obvious in dry areas and winter, but due to the low energy, it will generally not cause harm to the human body.
8. The power supply of the ZS series portable ultra-light DC high voltage generator control box is AC 220V±10%, 50Hz. If the power supply is changed by 1/1 isolation or a spontaneous power supply is used on site, the power supply must be connected to the earth a little bit artificially.
