Device for achieving electric testing high-voltage field protection through multi-band frequency mutual switching

Abstract

The invention discloses a device for achieving electric testing high-voltage field protection through multi-band frequency mutual switching. The device comprises a master control unit, a plurality ofinfrared detection units and a plurality of visible light detection units, wherein the visible light detection units are controlled by the master control unit through radio signals, each visible lightdetection unit comprises a processor module, a visible light transmitting module, a visible light receiving module and a wireless module, and the visible light transmitting module of one visible light detection unit is opposite to the visible light transmitting module of another visible light detection unit in sequence to define a closed high-voltage protection filed. The device has the advantages that the infrared fences of the visible light detection units are increased, the visible light detection units with lasing diodes as a light source can more precisely and quickly distinguish personsintruding into a high-voltage testing area, the high-voltage testing area protection range is expanded, and by using the infrared detection units and the visible light detection units, the high-voltage testing area protection stability is improved.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a protection device in the high-voltage field of electric power testing realized by switching between multiple frequency bands. Background technique [0002] The operation and maintenance personnel of power transmission and transformation equipment should conduct high voltage tests such as withstand voltage or partial discharge on equipment and cables on a regular basis. During the test process, high voltages such as 42Kv and 95kV will be generated. Personal injury, the tester may enter the test area without cutting off the test power supply due to equipment discharge flickering, changing wiring, changing equipment status, etc. during the test, which may cause personal injury to the tester. The fence has retractable belts or wire ropes. Since the alarm and automatic power-off cannot be performed, relevant personnel may stray into the live high-voltage test area, causing m...

AI Technical Summary

Problems solved by technology

However, the accuracy and reliability of the device in the above-mentioned patents have not been paid attention to. Due to the lack of accuracy of the infrared transceiver device, the alarm cannot be quickly reported when people enter by mistake, and when the infrared signal of the infrared transceiver device is interfered, malfunction or misjudgment may occur. This not only increases the risk, but also affects the normal operation of the high-voltage test. Therefore, it is necessary to design a protection device for the high-voltage field of electric test with higher accuracy and stability.

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