An NFC-based arc protection monitoring method

Abstract

The invention discloses an arc light protection monitoring method based on NFC (Near Field Communication). A patroller wears an arc light portable sensor, communicates with a NFC module mounted in the arc light portable senor or an arc light protector through a NFC hand-hold patrolling terminal, and sends patrolling data to a NFC patrolling system. The arc light portable sensor is timely communicated with the arc light protector through a wireless transceiver and a switch. After the patroller completes arc light directional monitoring, the arc light protector completes arc light monitoring of first and second transformer terminals and arc light monitoring of terminals connected with first and second low-voltage buses. The invention adopts the distributed mode design, is suitable for middle and low voltage double-bus protection and capable of mutual communication with the NFC patrolling system, and has flexible networking characteristics.

Description

technical field [0001] The invention relates to the field of arc protection, in particular to an NFC-based arc protection monitoring method. Background technique [0002] In the power system, busbars with a voltage level of 35kV and below are generally not equipped with busbar protection. However, due to the large number of outgoing lines on the medium and low voltage busbars, frequent operations, and the distance between the three-phase conductor lines and the earth is relatively close, it is easy to be harmed by small animals, and the quality of equipment manufacturing is worse than that of high-voltage equipment. Poor conditions, changes in system operating conditions, human and operational errors and other reasons, the failure probability of medium and low voltage buses is much higher than that of high voltage and ultra high voltage buses. But for a long time, people have not paid enough attention to the protection of medium and low voltage buses, and no advanced and re...

AI Technical Summary

Problems solved by technology

However, due to the large number of outgoing lines on the medium and low voltage busbars, frequent operations, and the distance between the three-phase conductor lines and the earth is relatively close, it is easy to be harmed by small animals, and the quality of equipment manufacturing is worse than that of high-voltage equipment. Due to poor conditions, changes in system operating conditions, human and operational errors, etc., the failure probability of medium and low voltage buses is much higher than that of high voltage and ultra high voltage buses

But for a long time, people have not paid enough attention to the protection of medium and low voltage buses, and no advanced and reasonable solutions have been found. expansion, resulting in huge economic losses

In recent years, due to various reasons, medium and low-voltage switchgears have been severely burned, and some have even developed into serious fire disasters. The accidents of main transformers damaged by external short-circuit current impacts have also increased year by year, and these distribution network accidents have been improperly handled and even enlarged. It has developed into a transmission network accident, causing significant economic losses, and has aroused widespread concern in the power sector

The reason is mostly because there is no medium and low voltage busbar protection, and the fault cannot be quickly removed.

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