NOYAFA Electronic specializing in testing instruments and cable testers for 16 years
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NOYAFA Electronic specializing in testing instruments and cable testers for 16 years
Author: Noyafa–Cable Tester Manufacturer
Question: When choosing a DC high voltage generator, you should understand these first. Answer: DC high voltage generators are widely used in power test departments of power sector, industrial and mining, metallurgy, steel and other enterprises. Questions about zinc oxide arresters, power cables, transformers, generators, etc.: When choosing DC high-voltage generators, you should first understand these answers: DC high-voltage generators are widely used in power testing departments of power sector, industrial and mining, metallurgy, steel and other enterprises. Conduct DC high voltage tests on high voltage electrical equipment such as zinc oxide arresters, power cables, transformers, and generators.
It is an important equipment for the high-voltage test profession. The selection and use of it should follow the following principles: 1. The product should pass the type test 2. The product should pass the network access evaluation organized by the relevant provincial Electric Power Testing Institute. Provinces that have not been evaluated You can refer to the evaluation results of other provinces. 3. The product should have enterprise standards, and the enterprise standard should not be lower than the industry standard. 5. It has a complete after-sales service guarantee system. Fortunately, it is reflected in the agreement. The company must have a certain production scale. If it fails to meet the technical requirements or is damaged due to problems, it should be responsible for free maintenance. If it cannot be repaired, it should be replaced. The product should be maintained for life with reasonable charges.
6. The DC high voltage generator should be designed and produced by using the intermediate frequency modulation technology, and the use of the power frequency transformer step-up DC high voltage generator should be prohibited. 7. The DC high voltage generator should have perfect technical measures for moisture and shock resistance. 8. The DC high voltage generator should adopt advanced electromagnetic compatibility design, and the whole machine can resist the impact of on-site discharge to the ground.
9. The DC high voltage generator should have the function of measuring 75% of the voltage of the zinc oxide arrester automatically. 10. The DC high voltage generator should be equipped with overvoltage and overcurrent automatic protection devices. In the event of abnormal working conditions, the automatic protection device shall automatically shut down the DC high voltage generator. 11. The high-voltage side ammeter of the DC high-voltage generator should have measures and capabilities to resist electromagnetic interference and positive and negative impact, and the measurement uncertainty should not be greater than 1.0%. It is easy to identify and meet the needs of on-site use.
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