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Dc high voltage generator for use

time:2020/6/18   source:华天电力  reading:297 time

Dc high voltage generator is an instrument used to provide high voltage DC power supply. Before using the instrument, it must be reliably grounded. The flow high voltage generator USES the working power supply to install two obvious breakpoints before entering the tester. When replacing the test product and wiring, the two power supply disconnection points should be clearly disconnected.


DC Hipot Tester.png


Before turning on the power supply of the instrument, make sure that the DC high-voltage generator has been connected to 220V AC power supply, carefully check whether the wiring is correct, and check whether the high-voltage discharge rod is reliable. One of the most important problems is to avoid using instruments beyond the scope as far as possible; After each test, the potentiometer was first reduced to zero, and then the power supply was cut off in two steps in the atmosphere of the discharge process, and a special discharge resistance rod was used to discharge the sample. When discharging, do not immediately make the discharge rod contact the test object; First, the exhaust rod should be gradually close to the test object, at a certain distance from the air gap to begin free exhaust, and hiss; If there is no sound, please use the discharge rod to discharge, and finally discharge directly to the ground wire.


When the DC high voltage is 220KV or higher, several adjacent standing human bodies have different DC electric potentials due to the influence of the spatial electric field distribution of ions, although the tester is wearing insulating boots and is at a safe distance. The tester must not shake hands with each other or touch the ground, otherwise it will cause a slight electric shock, especially in dry areas and winter. Usually, it does not cause harm to the body due to its low energy.


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