Nowadays, in order to cope with the rapid development of the industry, high-voltage technology has been increased. At the same time, accidents caused by the insulation of flash-insulators outside the power transmission and transformation equipment are not uncommon, resulting in a decline in reliability. Not only does it bring inconvenience to people's lives, but it also seriously affects the social image of the power system and brings about certain economic losses.
Nowadays, in order to cope with the rapid development of the industry, high-voltage technology has been increased. At the same time, accidents caused by the insulation of flash-insulators outside the power transmission and transformation equipment are not uncommon, resulting in a decline in reliability. Not only does it bring inconvenience to people's lives, but it also seriously affects the social image of the power system and brings about certain economic losses.
The main cause of insulator failure has also been introduced in detail, mainly due to lightning strikes or external force faults, bird pollution and aging and low resistance. The traditional detection methods for these accidents are mainly direct observation, measurement of insulator resistance, step voltage measurement, infrared camera detection, ultraviolet imaging, etc. These methods have more or less problems and cannot directly solve the problem effectively. .
To this end, the relevant departments have studied and explored the discharge mechanism of the insulator itself, and combined with a large number of experimental data, it has been found that no matter the failure of any of the above materials, pre-discharge occurs to varying degrees, such a strong or weak discharge. The role of the insulator itself produces a very complex wave, the wavelength of the wave is shorter, the higher frequency and multi-frequency mixing, almost in optical performance, we conducted in-depth acoustic analysis to identify the acoustic characteristics, and based on this The latest type of insulator fault detection method, namely: unique sound wave detection method.
The unique sound wave detection method is to detect the deterioration of the insulator by using the acoustic-electrical principle diagram and the partial discharge to detect the sound wave characteristic of the sound wave emitted when the insulation is poor. This method is not the weather, geography, environment, materials and other effects. Non-contact measurement, UPS operation, safe and reliable. Remote detection of insulators is one of the most effective methods of failure.
Combined with modern microelectronic technology, the advanced positioning components and the YG-8620 insulator fault distance laser positioning sensor have been successfully developed. Use unique sound waves, insulator high-voltage lines and power equipment remote inspection and inspection methods to predict the working conditions of potential fault-detecting insulators (low-resistance fault insulator flashover faults, fault pollution) to avoid individual pole (or tower) inspection, repair and Cleaning large areas of blind insulators, can detect high-voltage joint discharge, high-voltage switch discharge, corona discharge, saving manpower and material resources. YG-8620 insulator fault distance laser positioning sensor is the ideal test instrument for the safety of normal power supply systems and improving economic efficiency.
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