Gapless lightning impulse voltage generator

Abstract

The invention relates to a gapless lightning impulse voltage generator. The gapless lightning impulse voltage generator is characterized in that the gapless lightning impulse voltage generator comprises a supply transformer T with the main edge connected with a charging source. One end of the auxiliary edge of the supply transformer T is connected with the ground, the other end of the auxiliary edge of the supply transformer T is connected with an emitting electrode of an insulated gate bipolar transistor VT0, a collector electrode of the insulated gate bipolar transistor VT0 is connected with a protective resistor r in series and then connected to an emitting electrode of an insulated gate bipolar transistor VT, a collector electrode of the insulated gate bipolar transistor VT is connected to a positive electrode of a charging capacitor C through a discharge resistor rt, a negative electrode of the charging capacitor C is connected to the emitting electrode of the insulated gate bipolar transistor VT, the positive electrode of the charging capacitor C is connected to one end of a high-voltage experimental article ZX through a wavefront resistor rf, the other end of the high-voltage experimental article ZX is connected with the ground, the supply transformer T is connected to the emitting electrode of the insulated gate bipolar transistor VT0, and a charging resistor R is connected to the collector electrode of the insulated gate bipolar transistor VT0. The gapless lightning impulse voltage generator has the advantages of being free of mistaken movement, easy to operate and control, high in work frequency, small in drive circuit power and the like.

Description

technical field [0001] The invention relates to a lightning impulse voltage generating device, in particular to a gapless lightning impulse voltage generator. Background technique [0002] With the development of ultra-high voltage transmission projects, lightning impulse voltage generators have become one of the important equipment in high-voltage laboratories. Lightning impulse voltage generators can be used to conduct lightning impulse voltage tests on high-voltage equipment. In the test, the impulse voltage waveform must be accurate. If the impulse voltage amplitude is too high, the equipment may be damaged easily. If the impulse voltage amplitude is too low, the test purpose will not be achieved. [0003] Such as figure 1 As shown, the traditional lightning impulse voltage generator circuit relying on the breakdown of air to conduct voltage has low efficiency, poor anti-interference ability, difficult control, and frequent misoperation or refusal of the air ball gap. ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a gapless lightning impulse voltage generator, which solves the problems of low efficiency, poor anti-interference ability, difficult control, and frequent misoperation or refusal of the air ball gap in the existing generating device.

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