Alarm for detecting faults of overhead lines of distribution network

Abstract

An alarm for detecting faults of overhead lines of a distribution network comprises a sensor, a signal acquisition unit and a magnetoelectric conversion circuit which are connected with the sensor, a microprocessor which is connected with an output end of the signal acquisition unit, a wireless RF module which is connected with the microprocessor, a power supply control module which is connected with the output end of the magnetoelectric conversion circuit and a power supply which is connected with the power supply control module, wherein, the power supply is respectively connected to the signal acquisition unit, the microprocessor and the wireless RF module. Fault information on the overhead lines and occurrence addresses thereof can be accurately detected and rapidly sent out through the microprocessor and the wireless RF module. The magnetoelectric conversion circuit, the power supply control module and the power supply constitute a magnetic energy conversion mechanism. The alarm can be ensured to work safely and stably for a long time in field through the magnetic energy conversion mechanism.

Description

technical field [0001] The invention relates to an alarm device, in particular to an alarm device used for detecting faults of distribution network overhead lines. Background technique [0002] With the rapid development of the national economic situation, the closely related power transmission and distribution network is also expanding rapidly, the power transmission line is expanding rapidly, the radius of power supply is expanding, and the number of branch lines is increasing, resulting in more and more complicated line structures and the occurrence of overhead lines. The possibility of failure is also gradually increasing. [0003] Once the overhead line fails, it is very difficult to find the fault branch and fault point; the query process is time-consuming and laborious, ranging from a few hours to dozens of hours, requiring a lot of manpower and material resources, causing great harm to the power company and users. Great economic loss affects the reliability of power...

AI Technical Summary

Problems solved by technology

However, because the fault inspection mode has not been changed, there are still many deficiencies and defects in the function, and the lack of communication capabilities has not been well applied; if the distribution network automation system is used, it can realize automatic fault location, but due to the high input cost It is very important and urgent how to use mature communication technology to realize fast and automatic positioning of the fault section, improve the performance of the fault indicator, improve its deficiencies, and increase the data communication function.

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