Intelligent monitoring system and method for early warning of utility tunnel power cabin line replacement

Abstract

The invention provides an intelligent monitoring system for early warning of utility tunnel power cabin line replacement. The intelligent monitoring system comprises temperature sensing optical cables, distributed optical fiber temperature measuring hosts, controllers and an upper computer, wherein the temperature sensing optical cables used for acquiring temperature variations along a high-voltage line are laid along the high-voltage line; the temperature sensing optical cables are connected with the distributed optical fiber temperature measuring hosts by means of optical paths, the distributed optical fiber temperature measuring hosts convert optical signals of temperature variations along the high-voltage line into electrical signals of temperature variations along the high-voltage line, an output end of each distributed optical fiber temperature measuring host is connected with the controller by means of a signal line, the controller is used for calculating a number of temperature variation times according to the temperature variations along the high-voltage line and outputting an alarm signal when the number of times is greater than a threshold value, and an output end of the controller is connected with the upper computer. The intelligent monitoring system and the intelligent monitoring method can be used for monitoring a number of bending times of the high-voltage line, so as to judge loss condition of the high-voltage line, provide early warning and monitoring for the replacement of the high-voltage line of a utility tunnel power cabin, and improve the safety of the utility tunnel.

Description

technical field [0001] The invention belongs to the field of integrated utility gallery systems, and in particular relates to an intelligent monitoring system and method for early warning of line replacement in an integrated utility gallery power cabin. Background technique [0002] In recent years, with the rapid development of the city, the load density in the city center is increasing. When the overhead corridor is difficult or cannot be consistent with the city's power supply demand, most of the urban power distribution system adopts the integrated pipe gallery transmission and distribution system. It is convenient to improve the ability of the power system to resist natural disasters and to maximize the use of land resources. Long-distance, high-voltage, large-section high-voltage lines occupy a very important position in the distribution grid of economically developed areas and densely populated areas in large and medium-sized cities, and the management, maintenance an...

AI Technical Summary

Problems solved by technology

Once a fire occurs, it will cause the loss of other lines in the trench, the loss of the power line itself, and the economic loss of the external facilities of the integrated utility gallery due to power outages, especially the high-voltage lines of 110kV and above. Cause a power outage, or even cause the entire high-voltage power supply system to collapse due to a short circuit

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