Wireless-remote-control simulated dielectric loss device

Abstract

The invention discloses a wireless-remote-control simulated dielectric loss device, which comprises a singlechip, a signal conditioning circuit, a phase-shifting circuit, a constant current output circuit and a infrared signal receiving circuit, wherein the signal conditioning circuit is used for converting a current signal flowing through a standard capacitor to a voltage signal; the phase-shifting circuit is used for performing phase shift on the input voltage signal, and the phase-shifting circuit comprises a plurality of electronic phase shifters, and an input end of each electronic phase shifter is connected with an output end of the signal conditioning circuit through an electronic switching circuit, and an control end of each electronic switching circuit is connected with a corresponding loss value gear output signal output end of the singlechip; and the constant current output circuit is used for converting a phase-shifted voltage signal output by a phase shifter unit to a phase-shifted current signal so as to be output to a tested end of a dielectric loss tester to be tested; and the infrared signal receiving circuit is connected with a signal input port of the singlechip. The wireless-remote-control simulated dielectric loss device provided by the invention is wirelessly controlled by remote control, and the security of operating personnel is ensured, and the work efficiency is also improved.

Description

technical field [0001] The invention relates to the technical field of dielectric loss measuring equipment in power systems, in particular to a remote-controllable analog dielectric loss device. Background technique [0002] The insulation status of high-voltage electrical equipment plays a vital role in the safe operation of power systems. Many accidents in the power system are caused by insulation problems. In order to ensure the safe operation of the power system, an insulation test must be carried out. The dielectric loss measurement test is a highly sensitive insulation test. [0003] At present, most dielectric loss measurements use high-voltage capacitor bridges as test equipment, and the accuracy of the measurement results is directly related to the safety of power production. In order to ensure the reliability of the measurement results, it is necessary to regularly calibrate the test equipment. [0004] The standard loss method or the standard bridge comparison m...

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is to aim at the problems existing in the existing standard loss devices when calibrating various dielectric loss testers. From the perspective of the stability of the loss device and minimizing the limitation of environmental conditions, combined with the high-voltage capacitor bridge The positive and negative wiring characteristics, and provide an analog dielectric loss device that can be wirelessly controlled

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