50KV VLF Hipot Tester

     Ⅰ: Overview about the 50kv ultra-low frequency withstand voltage tester

       ● High voltage withstand test of electrical equipment is one of the most important items specified in insulation preventive test.

       ● The withstand voltage test can be divided into AC withstand voltage test and DC withstand voltage test. The AC withstand voltage test can be divided into power frequency, frequency conversion and 0.1hz ultra-low frequency test technology, of which 0.1hz ultra-low frequency technology is the latest technology recommended by the current international electrotechnical commission.

Ⅱ: Technical Parameters of the VLF hipot tester

         ● Accuracy: 3%

       ● Voltage Positive and Negative Peak Error: ≤3％

       ● Voltage Waveform Distortion: ≤5％

       ● Working Temperature: -10℃～+40℃, RH: ≤85％RH

       ● Fuse: 15A

       ● Power Supply: 220V±5%，50±5Hz

     Ⅲ： Advantages of 0.1Hz ultra-low frequency withstand voltage technology

In fact, the ultra-low frequency insulation withstand voltage test is an alternative to the power frequency withstand voltage test. In the power frequency withstand voltage test of large and medium-sized generators, motors, power cables and other test objects, due to their large capacitance in the insulation layer, a large capacity test transformer or resonance transformer is required. Some of these huge equipment is not only heavy and expensive, but also inconvenient to use. In order to solve this contradiction, the method of reducing the test frequency and the capacity of the test power supply is widely used in the world. It has been proved from many years of theory and practice at home and abroad that replacing power frequency withstand voltage test with 0.1Hz ultra-low frequency withstand voltage test can not only have the same equivalence, but also greatly reduce the volume and weight of the equipment, theoretically, the capacity is about one fifth of the power frequency, and the operation is simple. This is the main reason why this method is widely used in developed countries.

Ⅳ： Features of this high voltage tester

     ●  Advanced technology: using digital frequency conversion technology, microcomputer control, fully automated test processes such as boosting, bucking, measurement, and protection.

     ●  Easy to operate: simple wiring, easy to operate.

     ●  Comprehensive protection: multiple protections (overvoltage protection, high and low voltage side overcurrent protection), rapid action (action time ≤ 10ms), and the instrument is safe and reliable.

     ● Safe and reliable: low-voltage connection between the controller and the high-voltage generator, photoelectric control, safe and reliable use.

     ● The high and low voltage closed-loop negative feedback control circuit is adopted, and the output has no capacity rise effect.

     ● Complete configuration: capacitive touch screen, LCD English character display, automatic storage, automatic printing.

     ● Large test range: 0.1Hz, 0.05Hz and 0.02Hz multi-frequency selection, large test range.

     ● Small size and light weight: very conducive to outdoor work.

     ● Chinese and English switching function

The instrument will be repaired and replaced free of charge for product quality problems within one year from the date of purchase, and will provide lifetime warranty and technical services. If you find any abnormalities or malfunctions in the instrument, please contact the company in time to arrange the most convenient solution for you.