Polarity conversion detection device for high voltage silicon rectifier stack

Abstract

The invention discloses a polarity conversion detection device for a high voltage silicon rectifier stack. The polarity conversion detection device comprises a positive polarity detection oil way and a negative polarity detection oil way which are used for detecting the positive polarity and the negative polarity of the high voltage silicon rectifier stack. The positive polarity detection oil way and the negative polarity detection oil way are connected with oil supply ways of polarity conversion action oil cylinders. The positive polarity detection oil way comprises a positive polarity stroke reversing valve and a positive polarity pressure detection assembly which are sequentially arranged. The negative polarity detection oil way comprises a negative polarity stroke reversing valve and a negative polarity pressure detection assembly which are sequentially arranged. Main pressure detection assemblies are arranged on the oil supply ways of the polarity conversion action oil cylinders. According to the polarity conversion detection device for the high voltage silicon rectifier stack, existing travel switch mechanical action detection signals are replaced with hydraulic signals, high voltage resistance is achieved, and safety and reliability are high.

Description

technical field [0001] The invention belongs to the technical field of DC high-voltage generators, and in particular relates to a high-voltage silicon stack polarity conversion detection device. Background technique [0002] As the core component of the DC high-voltage generator, the high-voltage silicon stack is an important component kit. According to the DC voltage doubler circuit, except for the lowest silicon stack, the rest of the silicon stacks are in a high potential state in the circuit. For polarity conversion, the traditional method is to use a travel switch and arrange it at the ground end of the silicon stack at the bottom, and use the mechanical linkage lever for the polarity conversion of the silicon stack to drive the travel switch to indirectly detect the transition status of the silicon stack. Specifically, the travel switch is installed at a pre-set position, which must be the lowest potential end of the silicon stack and must be the grounding end, and a m...

AI Technical Summary

Problems solved by technology

[0003] With the continuous improvement of the test voltage level, more silicon stacks are required to form a voltage doubler circuit, but the existing scheme can only be arranged at the ground potential end of the lowest silicon stack, and all silicon stacks can be deduced and judged by the conversion of a silicon stack. Stack conversion, so the reliability is not high and it is only applicable to the situation of low voltage and few silicon stacks; due to the abnormal discharge of the test product during the high-voltage test, the ground potential rises, the surge voltage and other conditions often occur, often Cause damage to the detection limit switch, and at the same time, the overvoltage often passes through its connecting cable, causing the control equipment to be damaged due to overvoltage and overcurrent breakdown, which may cause major safety accidents such as casualties

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