The DC high voltage generator is abbreviated as Zhigaofa. Use the DC high voltage generator strictly according to the requirements and be familiar with the precautions listed below, which will be safer and more convenient to operate. In fact, the DC high voltage generator plays a role of safety protection in the field of power devices and is widely used. It is worth mentioning that there are many points to pay attention to when using and maintaining DC high-voltage generators. Below, Wuhan Defu Electric has listed some precautions to help you use and maintain DC high-voltage generators correctly.
1. Precautions for maintenance of DC high voltage generator:
1. Prevent foreign matter from entering the control box. If the control box has a fan, check whether the fan is running normally. To
2. Check the dust-proof devices everywhere, and if they are damaged or loose connections, they should be dealt with in time to prevent sand and dust from mixing in and damaging the equipment. To
3. When the multiplier insulation tube is dirty, please clean it with a dry cloth. Do not scrub with organic solvents such as alcohol or gasoline. It can be cleaned with detergent.
4. When replacing the fuse, please replace the fuse according to the amperage calibrated next to the fuse holder. To
5. Please do not open the control box and pressure doubler without permission, otherwise it will affect the product warranty. To
6. The instrument should be protected against shock, moisture, dust and corrosion. To
7. Regularly check the voltage and ammeter to ensure the accuracy of the instrument.
2. Precautions for DC high voltage generator test
1. Before the test, check whether the test product, DC high-voltage generator, pressure doubler, discharge rod, grounding wire, and test product connection wire are well connected, and check whether the grounding wire is connected correctly. To
2. The high-voltage output wiring must be firm to prevent the high-voltage lead from falling off during the test and direct discharge to the ground will damage the instrument. 3. During the high-voltage test, the surrounding objects and personnel must maintain a sufficient safe distance.
3. Install two obvious disconnect points before the working power supply enters the tester. When replacing the tested product and wiring, the working power disconnection point should be clearly disconnected;
4. 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. To
5. When discharging the large capacitive test product, the test product should be discharged through a 100Ω/V discharge resistance rod. The discharge rod should not be immediately contacted with the test product during discharge. The discharge rod should be gradually approached to the test product to a certain distance to the air. The gap begins to dissociate and discharge with hissing noise. When there is no sound, the ground terminal of the discharge rod can be used to discharge, and finally the ground wire is directly connected to discharge;
6. When the DC high voltage of the DC high voltage generator 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 spatial electric field distribution of the high voltage DC ion, it will cause several nearby standing bodies to wear There are different DC potentials. Test personnel should not shake hands or touch the grounding point with their hands. Otherwise, there will be a slight electric shock. This phenomenon is more obvious in dry areas and winter, but generally it will not cause harm to people due to the low energy;
7. After the test, the discharge rod should be used to discharge the test product many times, and the test product can be approached for subsequent disassembly operations after full discharge. To
8. The interval between two tests (referring to the power-off time) should not be less than 5 minutes to ensure that the instrument can get sufficient heat dissipation.
