Short-time delay high-gradient pulse amplifier

Abstract

A short-time delay high-gradient pulse amplifier is formed by an isolation transformer, a rectifying circuit, an energy storage circuit, a pulse output circuit and a thyristor control circuit; the isolation transformer is connected with a power frequency alternating current power source and is connected with the rectifying circuit after isolation transformation; one output circuit of the rectifying circuit is connected with the energy storage circuit and the other circuit is connected with the thyristor control circuit; an output end of the energy storage circuit is connected with a pulse output circuit; an output end of the thyristor control circuit is connected with a thyristor control end in the pulse output circuit. According to the short-time delay high-gradient pulse amplifier, a thyristor is served as a capacitor discharging switch, a steep-sided pulse is generated by capacitor instant discharging, the steep-sided pulse generates a short-time delay high-gradient pulse is generated after being amplified through the pulse transformer, the leakage inductance and the distributed capacitance of the pulse transformer are reduced by reducing the number of turns of winding, or voltage at two ends of a charging capacitor in the energy storage circuit is improved by improving the voltage of the rectifying circuit after rectification, and the gradient of a pulse amplifier output pulse is increased.

Description

technical field [0001] The invention belongs to the technical field of high voltage test, in particular to a pulse amplifier with short time delay and high steepness. Background technique [0002] In order to test the insulation performance of high-voltage electrical equipment in the power system, it is necessary to conduct impulse voltage tests to simulate lightning overvoltage and operating overvoltage on high-voltage electrical equipment, and pulse amplifiers are often used. To obtain high-steep pulses, the generated pulses need to be steepened, which increases the cost and size of the amplifier. In order to improve the effect of the pulse amplifier, the present invention proposes an amplifier for generating pulses with short time delay and high steepness. Contents of the invention [0003] In order to overcome the shortcomings of the above-mentioned prior art, the present invention proposes a short-time-delay high-steep pulse amplifier capable of generating short-time...

AI Technical Summary

Problems solved by technology

To obtain high-steep pulses, the generated pulses need to be steepened, which increases the cost and size of the amplifier

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