Low-voltage electric power circuit anti-theft system with warning function

Abstract

The invention discloses a low-voltage electric power circuit anti-theft system with a warning function. The low-voltage electric power circuit anti-theft system with the warning function comprises a warning circuit, an isolation transformer, a rectifying unit, a filter circuit and a rechargeable battery, wherein the isolation transformer, the rectifying unit, the filter circuit and the rechargeable battery are connected in sequence, the isolation transformer is connected with a phase line input line and a null line input line, and a first relay is connected between the phase line input line and the null line input line. The warning circuit comprises a second resistor, a first loudspeaker and a light-emitting diode set, wherein the light-emitting diode set comprises a plurality of light-emitting diodes which are connected in series and voltage regulator tubes, the number of the voltage regulator tubes is equal to that of the light-emitting diodes, and each light-emitting diode corresponds to a reverse voltage regulator tube and is connected with the reverse voltage regulator tube in parallel. The low-voltage electric power circuit anti-theft system with the warning function is simple in overall structure, small in number of components, and low in cost. The low-voltage electric power circuit anti-theft system with the warning function can be used for giving an alarm in the area which is in the charge of joint defense personnel who are on duty and can also be used for warning lawbreakers in a transformer site of a low-voltage electric power circuit, and therefore the low-voltage electric power circuit anti-theft system with the warning function has good anti-theft performance.

Description

technical field [0001] The invention relates to power line anti-theft equipment, in particular to an alarm device for anti-theft of low-voltage electric wires. Background technique [0002] The supply of electricity, especially the safe and reliable supply of electricity has always been the focus of attention of society, enterprises, people and the media. Because safe, stable and reliable power supply is related to the development of the national economy, the construction of a harmonious society and the vital interests of the people. At present, most of the power facilities are located outdoors, and incidents of theft of power facilities occur frequently. Among them, in the event of the theft of power facilities, it is more common for transformers supporting low-voltage power lines to be stolen. Nowadays, alarm devices used for anti-theft of transformers for low-voltage power lines are generally costly, which affects the popularization and application of anti-th...

AI Technical Summary

Problems solved by technology

Among them, in the incident of theft of power facilities, the transformers supporting low-voltage power lines are stolen more commonly. Nowadays, the alarm devices used for anti-theft of transformers for low-voltage power lines are generally costly, which affects the popularization and application of anti-theft alarm devices.

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