High-voltage pulse generator

Abstract

The invention provides a high-voltage pulse generator which comprises three parts such as a power supply cabinet, an operation board and a simulation lightning wave generator, wherein the power supply cabinet is used for controlling the operation of the generator and generating high-voltage pulse; the operation board is used for displaying and inputting a control instruction; the output end of an intelligent thyristor voltage regulating module is sequentially connected with a rectifier filter circuit, an H-bridge module and an LC (Liquid Crystal) resonance circuit; the LC resonance circuit is sequentially and electrically connected with a high-frequency and high-voltage charging transformer, a multiplier and an impulse voltage generator; and the impulse voltage generator is externally connected with an insulated testing system and is respectively and electrically connected with an external oscilloscope through a resistance voltage divider I as well as is electrically connected with an analog quantity input end of a programmable logic controller (PLC) in the cabinet through a resistance voltage divider II. According to the high-voltage pulse generator provided by the invention, the wave-front time can be regulated by regulating and converting a plurality of parameters in a grading way and the single triggering or automatic continuous triggering once each minute is realized; and the high-voltage pulse generator has the advantages of simpleness for operation, high control precision, safety and reliability.

Description

technical field

[0001] The invention belongs to the field of electrical equipment, and in particular relates to a high-voltage pulse generator. Background technique

[0002] At present, the known lightning wave impulse voltage generator technology is very mature, and can generate simulated lightning waves based on national standards with a wave head of 1.2 us and a wave tail of 50 us. However, modern power system safety research requires that the impulse voltage generator can continuously send impulse voltage to the typical small gap oil-paper model at a certain time interval to study its lightning strike effect, and the voltage waveform can be well adjusted to facilitate the study of different steepness and amplitude. Effects of oil paper surface micro-morphology and cellulose molecular chain scission. However, the current impulse voltage generator has a single controllable parameter, the output voltage amplitude is too large, and cannot be automatically triggered, so it ...

Images