Electrifying wire-switching device and running method

Abstract

The invention relates to an electrifying wire-switching device and a running method. The device comprises a controller and an executing module, wherein the controller is used for generating a wire-switching control signal and the executing module is used for connecting a test loop of a plurality of test loops, switching the connecting to the selected another test loop for test according to the wire-switching control signal, and delaying the disconnecting of the previous test loop which is connected. Compared with the prior art, the electrifying wire-switching device has the advantages that the test wiring is switched under the electrifying condition; no discharging phenomenon happens in a switching process; the test operation program is simplified; the test efficiency and safety are effectively increased; the labor intensity of the tester and the loss of test equipment are reduced.

Description

technical field [0001] The invention relates to the technical field of high-voltage electrical testing, in particular to a live wire changing device and an operation method. Background technique [0002] Among the routine test items for coupling capacitors required by national standards, there are tests such as power frequency withstand voltage test, partial discharge test, initial capacitance dielectric loss test, and capacitor dielectric loss retest. The common feature of this type of test is that the high-voltage terminal (high-voltage electrode) of the test object is always connected to the high-voltage end of the test power supply, and the test items are completed only by changing the connection between the low-voltage terminal (low-voltage electrode) of the test object and different test instruments. transform. [0003] During the test, due to the high test voltage, under the test voltage of tens of kilovolts or even hundreds of kilovolts, if the connection line betwe...

AI Technical Summary

Problems solved by technology

Since the test voltage used in the coupling capacitor test can reach hundreds of kilovolts, a sufficient safety distance must be ensured between the control room and the product test area. During the entire test process, testers need to frequently enter and exit the control room and test area , split test power supply, voltage up and down, time-consuming

Especially in the batch test, the test efficiency is low, the labor intensity of the test personnel is high, the safety is reduced, and the loss of test equipment is large

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