Overcurrent phase-missing remote alarm for distribution transformer

Abstract

The invention relates to an overcurrent phase-missing remote alarm for a distribution transformer, comprising a signal acquisition circuit, a signal judgment circuit and a wireless alarm transmission circuit; the signal acquisition circuit is connected with the signal judgment circuit which is connected with the wireless alarm transmission circuit; when a high voltage and a lower voltage of the running distribution transformer generate overcurrent, or phase loss happens due to melt fusing of certain phase of fuse or other reasons, a current relay actuates to immediately transmit overcurrent and phase-missing signals to the wireless alarm transmission circuit, carries out remote alarming and transmit the alarming signal to a mobilephone of an operator on duty; the operator on duty goes to the site in the first time for processing as soon as acquiring the alarming situation; and therefore the time for processing electrical equipment malfunction is shortened, the power supply reliability is improved, and enterprise and social benefits are increased.

Description

technical field [0001] The invention relates to a remote alarm device for overcurrent and lack of phase during the operation of a distribution transformer, which is used for high and low voltage overcurrent during the operation of a power supply transformer in a distribution network, when the melt of a fuse is blown, or when a phase failure occurs due to other reasons. Call the police from afar. Background technique [0002] At present, with the rapid development of industrial and agricultural production, the rapid improvement of the national economy, the continuous improvement of people's living standards, the unprecedented development of the power industry, and the rapid development of the national power grid construction. The power of the power grid is transformed by the distribution transformer and sent to thousands of households. The current operating distribution transformer and the 400V power distribution system below are basically out of order because they cannot be ...

AI Technical Summary

Problems solved by technology

The power of the power grid is transformed by the distribution transformer and sent to thousands of households. The current operating distribution transformer and the 400V power distribution system below are basically out of order because they cannot be monitored in real time. The user will notify the maintenance personnel to repair the equipment. Inspection and maintenance, such fault treatment takes a long time, and has a great impact on users' power outages. Therefore, the reliability of power supply is low, and the equipment damage rate is high, which cannot meet the requirements of continuous improvement of people's living standards. If the overcurrent and phase loss remote alarm technology can be fully promoted , when a transformer overcurrent or phase loss accident occurs, the maintenance personnel can go to the scene at the first time to repair it in time, shorten the accident handling time, increase the power supply, and increase the enterprise and social benefits

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