Device for excitation regulation of impact generator

Abstract

The invention relates to a device for excitation regulation of an impact generator. An industrial control computer collects various operating parameters of the impact generator through an input signal conditioning module. According to voltage and current levels of a test piece, a 'pre-strong excitation' multiple is set on a man-machine interface. The industrial control computer calculates the corresponding adjustment signal and outputs the signal to a silicon controlled pulse trigger module. After pulse generation, pulse amplification and pulse isolation, a pulse signal finally generated by the silicon controlled pulse trigger module controls a silicon controlled rectifier screen. The output of the silicon controlled rectifier screen is connected to a rotor circuit of the impact generator to ultimately control the voltage and the current of the impact generator. According to the invention, the pre-strong excitation technology is used so that the current and the voltage of the impact generator meet the requirements when the impact generator is subjected to short-circuit impact.

Description

technical field [0001] The invention relates to an excitation adjustment device for an impact generator. Background technique [0002] With the continuous increase of the domestic power system and the increasingly extensive networking, it is necessary to develop larger high-voltage and high-current circuit breakers, and the direct high-current impulse test of the product in the switch laboratory is a necessary means to develop this product. The strong current required for the test is generated by the impulse generator at the moment of short circuit, so this kind of motor is also called short circuit test generator. As the name suggests, this is a very special type of generator. Once a conventional generator is short-circuited, it will be regarded as a serious accident, because the huge current often damages the generator to varying degrees, but the normal operation of this generator is frequent. short circuit and try to generate as much current as possible. [0003] Accord...

AI Technical Summary

Problems solved by technology

Using a fixed high-strength excitation multiple, the instantaneous current of the short circuit can reach the required level, but it cannot guarantee that the current remains constant during the entire short circuit period.

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