Wireless distributed capacitor inductor test apparatus and application

Abstract

The invention discloses a wireless distributed capacitor inductor test apparatus and an application. A current clamp of the test apparatus is in clamping connection with a connection aluminum bar of a tested capacitor or inductor, the other end is connected with a port of a current test pathway through an aviation plug, test power supply output is connected with the two ends of the tested capacitor or inductor through a test line, the current test pathway is connected with a current amplifier for current amplification, and a voltage test pathway is connected with a voltage amplifier for voltage amplification; and amplified current signals and voltage signals are transmitted to an A / D conversion unit, the current signals and the voltage signals after conversion are transmitted to a digital signal processor (DSP) through a parallel port, and such feature values of amplitude, initial phase angles and the like obtained through operation are transmitted to a wireless communication unit through a serial communication port of an UART and then are transmitted to a host. The test apparatus can perform networking to rapidly test tens of thousands of capacitors in a converter station, facilitates testing, improves the work efficiency, and facilitates test data management and data transmission.

Description

technical field [0001] The invention relates to the technical field of capacitance and inductance testing, in particular to a wireless distributed capacitance and inductance testing device and its application. Background technique [0002] Capacitance and inductance tester is specially developed for the problems existing in measuring the capacitance value of a single capacitor in a parallel capacitor bank in a substation. However, the number of capacitors to be tested in the converter station is large, the installation location is high, and the test workload is heavy. The size, weight, and need for external power supply of existing testers in China cannot meet the test requirements for capacitors in converter stations, so it is urgent to solve this field test technical problem. [0003] The Chinese patent application number CN200820055275.5 discloses a capacitance and inductance testing device, including: a programmable power supply module; a test sampling module; and a co...

AI Technical Summary

Problems solved by technology

The test device is bulky and heavy, and the position of the capacitor in the converter station is relatively high. During the on-site test, the test device needs to be placed next to the capacitor for testing, and the power line needs to be dragged to a high place to test the capacitors one by one. The test requires a lot of labor. Very inefficient and not safe

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