Withstand explosion detection device and method for power capacitor

Abstract

The invention discloses withstand explosion detection device and method for a power capacitor. The detection device comprises a photoelectric isolation system, a data acquisition system, a data processing and analyzing system and a man-machine interaction display system. The photoelectric isolation system sends received data after electric isolation to the data acquisition system which is composed of an attenuation unit and an acquisition device, the data sent by the photoelectric isolation system is sent to the acquisition device through an attenuator by configuring coefficient of the attenuator, an output end of the data acquisition system is connected to an input end of the data processing and analyzing system serving as a core component to receive data of the data acquisition system and complete analytic calculation, and an output end of the data processing and analyzing system is connected to a man-machine interaction interface which is responsible for configuration, control and detection result output of a test task. The withstand explosion detection device is used for detecting the characteristics of withstand explosion of the capacitor, and a withstand explosion probability curve of a shell of the capacitor can be drawn conveniently.

Description

Technical field [0001] The invention belongs to the technical field of capacitor testing, and relates to an energy detection device, in particular a power capacitor explosion-proof energy detection device and a detection method thereof. Background technique [0002] By adding series capacitors in long-distance UHV transmission lines, it is equivalent to offsetting part of the inductive reactance of the transmission line, shortening the electrical distance of the line, reducing the phase angle difference between the two ends of the line and increasing the anti-interference margin , Improve the system stability of the transmission line. [0003] If an unreasonable capacitor bank wiring is used for the capacitors connected in series in the power line, if one of the capacitors has a breakdown, the other intact capacitors connected in parallel with the series section and the fault capacitor will discharge to the fault capacitor and cause the fault capacitor Withstand the energy beyond ...

AI Technical Summary

Problems solved by technology

At present, there is no special device for the calculation of the explosion-resistant energy of capacitors. When calculating the blasting energy, it is necessary to carry out tedious test wiring first, and then realize the energy calculation by collecting a large amount of data and using complex calculation formulas, which is inefficient. For drawing capacitors The explosion-resistant probability curve of the shell cannot be effectively completed, and it is difficult to meet the test requirements

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