High-voltage electric appliance test loop trigger system and method applying pulse transformer technology

Abstract

The invention provides a high-voltage electric appliance test loop trigger system and method applying a pulse transformer technology. The system comprises an ignition apparatus body and a two-stage trigger loop, wherein the two-stage trigger loop comprises a first-stage trigger unit and a second-stage trigger unit, and a voltage regulator, a charging voltage device and a rectification and protection loop which are successively connected; and the ignition apparatus body at least comprises two pairs of graphite sphere gaps. According to the invention, a two-stage trigger loop system taking a two-stage pulse transformer as a core is employed, since high-voltage pulse voltages are high, the penetration success rate is high, the overall dispersibility of the trigger system is small and can be 50[mu]s below, the trigger control precision is substantially improved compared to the prior art, the spacing of the graphite sphere gaps can be reliably triggered within a scope of 50mm, the trigger success rate under low charging voltages is especially substantially improved, at the same time, the flexible adjustment advantage of the sphere gaps guarantees the reliability of a trigger link in a high-voltage electric appliance test, the test time is greatly reduced, the test efficiency is improved, and the labor intensity is mitigated.

Description

technical field [0001] The invention relates to a high-voltage electrical test technology for AC-DC transmission, in particular to a high-voltage electrical test circuit trigger system and method using pulse transformer technology. Background technique [0002] Synthetic test is often used in UHV electrical tests, and the trigger system is an indispensable and important trigger device in the synthetic test. Whether the trigger system can be triggered correctly and in time, whether the distance between the trigger ball and the ball is appropriate, and the Whether the synthetic current can be successfully penetrated and the accuracy of the penetration time greatly affect the success rate of the synthetic test. The existing technology is to use a trigger ball with adjustable ball distance, and adjust the appropriate ball distance for different voltage level tests to determine the insulation and trigger distance. However, it still cannot solve the problems existing in the exist...

AI Technical Summary

Problems solved by technology

However, it still cannot solve the problems existing in the existing high-voltage electrical test. The trigger system has insufficient pressure resistance due to the slightly small ball gap distance, which leads to early self-breakdown during the charging process, or the failure in the triggering process due to the slightly larger ball gap distance. Successful penetration, or the problem that the ball gap penetrates but the dispersion of the penetration time is too large due to the large distance

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