An integrated high frequency high voltage power supply

Abstract

The invention provides an integrated high frequency and high voltage power source comprising a PWM circuit, a control circuit, a high-frequency voltage transformer, a voltage step-up device, a high voltage capacitor, a pulse output control device, a direct current high voltage discharge device, a sampling resistor, an operation panel, a structure support rack and a power source machine box. The integrated high frequency and high voltage power source is characterized by integration design, compact structure, light weight, portability, simple wire connection and easy operation; single pulse and continuous pulse functions can be fulfilled via output high voltage, pulse output can be controlled intelligently, a function of direct current and high voltage output can be fulfilled, the integrated high frequency and high voltage power source can still work when external sphere gaps are applied, and diversification of application can be realized.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of power cable fault testing, and relates to a high-voltage power supply required for cable fault testing, in particular to an integrated high-frequency high-voltage power supply. [0003] 【Background technique】 [0004] Today, with the rapid development of the national economy and the continuous improvement of people's living standards, people have higher and higher requirements for the reliability and continuity of power supply. Most of the power cables are laid underground, indoors, in trenches, and in mines. Due to the structure of the cables themselves and the influence of the natural environment, failures are prone to occur. In order to reduce unnecessary large-scale power outages, shorten power outage time, improve power supply reliability and continuity, and reduce losses in industrial and agricultural production processes, the efficiency of cable fault resolution is very critical. [0005] ...

AI Technical Summary

Problems solved by technology

The traditional high-voltage source is composed of a voltage-regulating controller, a transformer, a high-voltage capacitor, a discharge rod, and a connecting wire. If a pulse high-voltage test is required, a specific discharge ball gap is required, and the voltage can be adjusted manually. It is very inconvenient to adjust the discharge ball gap distance

Another new type of high-voltage power supply is often unable to integrate high-voltage capacitors. It simply optimizes the traditional "three major components" into "two major components", which still does not fundamentally solve the problem of equipment integration, integration, and portability. problem, still retains the nature of split instrument testing

There is also a more optimized power supply, integrated design, still using the principle of transformer, but unfortunately it is very heavy, and at least two testers are required to move it, which does not conform to the rhythm of today's production and life, and affects the efficiency of testing work.

[0006] At present, although there are many types of high-voltage power supplies required for cable fault testing, these power supplies often have the disadvantages of many types of instruments, cumbersome wiring, heavy equipment, high-voltage exposure, and mechanized operation

For example, when pulsed high-voltage output is required, testers often have to adjust the discharge ball gap multiple times according to the nature of the fault. It needs to be boosted and then manually discharged, and then boosted. Frequent mechanical, not smart enough, which brings a lot of trouble to the testers

Images