Lightning waveform monitoring system for power transmission line leads

Abstract

The invention provides a lightning waveform monitoring system for power transmission line leads, which relates to the field of lightning protection of a power system. At present, leads exist between a lightning current sensor and a host of a lightning waveform monitoring system, and the leads have the defects of insecurity, complicated wiring and complex operation; and the power source of the host is provided by a solar panel, is greatly affected by the weather and has complicated installing and fixing processes, and the exposed leads are insecure. The system of the invention comprises a host and a server capable of being connected with a host network. The system is characterized by also comprising a plurality of extensions communicated with the host, wherein each extension comprises a case, an annular lightning current sensor, a lightning signal acquisition module and a wireless module, wherein the case can be sleeved on a monitoring line; the annular lightning current sensor is positioned in the case and can be opened to be sleeved on the monitoring line; the lightning signal acquisition module is connected with the lightning current sensor; an annular energy acquiring transformer capable of being opened is also arranged in the case; and the induced electricity acquired by the energy acquiring transformer passes through a rectifying and voltage adjusting module to provide a power source for electric modules in the same case. The invention has the advantages of convenient installation and maintenance and reliable operation.

Description

【Technical field】 [0001] The invention relates to the field of lightning protection of electrical equipment in a power system, in particular to a monitoring system for lightning strike waveforms of conductors of transmission lines. 【Background technique】 [0002] At present, the lightning current sensor of the lightning waveform monitoring system is installed on the insulator of the monitoring line, and the host computer equipped with the data sampling and processing module connected to the lightning current sensor wire is fixed on the support frame used to support the transmission line. Due to the presence of wires between the lightning current sensor and the host, in harsh outdoor environments, the wires are easy to fall off, and accidents such as short circuits occur, which poses unsafe hazards; moreover, multiple lightning current sensors on the monitoring circuit are connected to the host, and the wiring It is troublesome and cumbersome to operate, not to mention that t...

AI Technical Summary

Problems solved by technology

Because there are wires between the lightning current sensor and the host, in the harsh outdoor environment, the wires are easy to fall off, and accidents such as short circuit occur, which has potential safety hazards; moreover, multiple lightning current sensors on the monitoring circuit are connected to the host, and the wiring Troublesome and cumbersome operations, not to mention that these installation and connection operations are carried out at high altitude

[0003] On the other hand, the power supply of the main engine is provided by the solar panel, and the electric energy generated by the solar panel is stored by the battery, and the electric energy of the battery is connected to the electrical equipment through a transformer. This structure has at least the following problems: 1. The solar panel is greatly affected by the weather , if it continues to be cloudy and rainy, it may cause insufficient storage power and the device cannot work normally

2. Due to the difference in the structure of the support frame of the monitoring circuit, it is difficult to install and fix the solar panel on different support frames easily

3. There are exposed connecting wires between the battery and the main unit. In severe weather such as strong winds, the connecting wires are easy to loosen or even detach, which makes the equipment unable to work due to lack of power supply, and the detached wires are likely to cause short-circuit accidents and phase failures. The wire and the support frame conduction and the support frame is electrified, resulting in harmful consequences

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