Breakdown fuse measurement system and breakdown fuse measurement instrument

Abstract

The invention provides a breakdown fuse measurement system and a breakdown fuse measurement instrument. The breakdown fuse measurement system comprises a multi-waveform generator, a boosting transformer, a voltage doubling rectifying circuit and a shaping filtering circuit; the boosting transformer, the voltage doubling rectifying circuit and the shaping filtering circuit are connected in series;a high-voltage input end is connected with the multi-waveform generator; and a high-voltage output end is connected with the shaping filtering circuit. A problem of shortage of simulation on an actualovervoltage condition due to a simple waveform obtained when a breakdown fuse detector detects a breakdown fuse is solved. By connecting the boosting transformer, the voltage doubling rectifying circuit and the shaping filtering circuit in series, multiwave simulated test high-voltage output; the breakdown fuse measurement system and the breakdown fuse measurement instrument are simple and reliable to work; the waveforms are complete and distortionless; a working state and life expectancy of the field breakdown fuse are really reflected; and measured data is more accurate.

Description

technical field [0001] The invention relates to the technical field of power detection equipment, in particular to a breakdown fuse measuring system and a breakdown fuse measuring instrument. Background technique [0002] The breakdown fuse is a kind of lightning arrester. It should be used for overvoltage protection on the secondary side (low voltage side) of the internal and external voltage transformers, so as to prevent the high voltage from being connected to the secondary circuit and cause the voltage rise to cause damage to the secondary equipment and personal injury; It can also be used on the low-voltage side of the power transformer to prevent the voltage on the low-voltage side from rising when a breakdown occurs between the high-voltage coil and the low-voltage coil; or as a protective gap in the low-voltage power network for overvoltage protection of other electrical equipment. It is connected in parallel with the protected equipment to limit the overvoltage on ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a breakdown fuse measurement system to solve the problem that the waveform obtained when the breakdown fuse detector in the prior art detects the breakdown fuse is simple, and the method is used to simulate the actual overvoltage condition.

[0005] The purpose of the present invention is to provide a breakdown fuse measuring instrument to solve the problem that the breakdown fuse detector in the prior art cannot accurately simulate the complex overvoltage conditions on site

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