The DC high-voltage generator under the UHV power company can help many power workers conduct various power tests more conveniently.
1. Personnel using high-frequency DC high voltage generators must have a professional with a High Voltage Test Certificate.
2. When using this instrument, users must comply with the provisions of 168 "Power Safety Regulations" and install two obvious disconnection points before entering the testing instrument with the working power supply. When replacing samples and wiring, it is necessary to clearly disconnect the two power disconnection points.
3. Before testing, please check if all test wiring, control boxes, multiplier tubes, and grounding wires of the tested product are connected correctly. The ground wire of the test circuit should be grounded at a single point according to the requirements of this instrument manual.
4. Special discharge resistor rod is used for discharging large capacitor samples. Do not immediately come into contact with the test object during discharge. Firstly, gradually approach the test sample and start discharging at a certain distance in the air gap. There is a hissing sound.
5. When the DC high voltage reaches 200kV or above, although the tester is wearing insulated shoes and is at a safe distance, several people standing nearby will have different feelings due to the distribution and diffusion of the HVDC ion space electric field. Direct current potential. Do not shake hands or touch the ground with your hands, otherwise there may be slight electric shock, which is more obvious in dry areas and winter. However, due to the low energy, it generally does not cause harm to the human body
6. The power supply for the control box of the high-frequency DC high-voltage generator is AC 220V ± 10%, 50Hz. If the power supply is isolated by 1/1 or a spontaneous power supply is used on site, the power point must be manually grounded.
In addition, based on years of experience, it is best not to exceed the effect value of 85% for DC high-voltage generators when the relative humidity is 25 ℃, there is no condensation, the ambient temperature is -10 ℃, 40 ℃, and the altitude is below 1500m.
