Device and method for predicting power distribution cabinet electric health index

Abstract

The invention provides a device and a method for predicting a power distribution cabinet electric health index, and belongs to the technical field of power distribution cabinets. The device comprises a current sensor, a voltage sensor, a frequency sensor, an insulation test instrument, a data acquisition chip, a central processing unit, an industrial personal computer and a wireless communication module. According to the invention, the health status of a power distribution cabinet can be known, so that untimely or unnecessary black out test and overhaul are reduced, repair as required is realized, and reliability and economical efficiency of an electric power system are remarkably improved; prediction analysis is performed on the electric health index of a novel indoor power distribution cabinet which is manufactured and researched and developed independently by manufacturing enterprises, so that maintenance personnel can overhaul conveniently.

Description

technical field [0001] The invention belongs to the technical field of distribution cabinets, and in particular relates to a device and method for predicting electrical health index of a distribution cabinet. Background technique [0002] Relevant statistics show that more than half of the distribution network maintenance costs are spent on distribution cabinets, and 30% of them are used for minor repairs and routine maintenance of distribution cabinets; in addition, according to statistics, 15% of distribution cabinet failures are Due to incorrect maintenance, the overhaul of the power distribution cabinet is completely disassembled, which is time-consuming and expensive, up to 1 / 3-1 / 2 of the entire power distribution cabinet, and disassembly and reassembly will cause many defects. The examples of accidents are too numerous to enumerate. It is still a controversial issue for which parts (or important components) of the power distribution cabinet and how long they need to be...

AI Technical Summary

Problems solved by technology

[0002] Relevant statistics show that more than half of the distribution network maintenance costs are spent on distribution cabinets, and 30% of them are used for minor repairs and routine maintenance of distribution cabinets; in addition, according to statistics, 15% of distribution cabinet failures are Due to incorrect maintenance, the overhaul of the power distribution cabinet is completely disassembled, which is time-consuming and expensive, up to 1 / 3-1 / 2 of the entire power distribution cabinet, and disassembly and reassembly will cause many defects. The examples of accidents are too numerous to enumerate. It is still a controversial issue for which parts (or important components) of the power distribution cabinet and how long they need to be replaced. In fact, in the current relatively conservative planned maintenance, often Many components still perform well when they are updated after many years of operation, and due to failure to find out in time, a defect in a certain component leads to power grid accidents from time to time

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