Power line ice melting device

Abstract

The invention provides a power line ice melting device system, which is characterized in that an electrified ice melting wire (ground wire) is erected on a pole tower, one or more strands of insulation auxiliary wires and a plurality of strands of small wires are twisted to form the electrified ice melting wire by utilizing a structure that an overhead wire is a plurality of strands of small wires, the insulation auxiliary wires and a main wire are mutually insulated, an ice melting transformer is in T connection with a main line to serve as a power supply of the ice melting transformer, the ice melting transformer adopts an autotransformer or a multi-winding transformer, required ice-melting voltage is obtained by adopting multiple taps, the ice melting transformer provides a proper potential difference between each phase of main wire and each phase of insulation auxiliary wire so as to make the main wires and the insulation auxiliary wires form circulating current to generate temperature rise for ice melting, an ice melting switch is used for controlling opening and closing, and a monitoring control system monitors the environment temperature, humidity and icing thickness of the line, switches on and switches off the ice melting switch according to the environment temperature, humidity and icing thickness, and transmits data to a remote ice melting background.

Description

technical field [0001] The invention belongs to the technical field of ice-melting power lines, and in particular relates to an ice-melting device for power lines. Background technique [0002] Most of the power lines are erected in high mountains, and the conductors and ground wires are at high altitudes. Affected by cold weather, the conductors and ground wires are very easy to freeze. The increase in ice thickness also increases the weight rapidly, which increases the weight load of the guide and ground wire itself, and the load of the tower is also increasing rapidly. When the ice thickness reaches a certain thickness and exceeds the bearing capacity of the guide, ground wire or tower ( It may reach 10 times of the normal time at the maximum), which will cause disconnection or pole down accidents, and power supply interruption. Every year, power lines are damaged to varying degrees due to icing on power lines. Especially in 2008, large-scale disconnections, pole downs, ...

AI Technical Summary

Problems solved by technology

[0007] Through a simple analysis of the above methods, it can be seen that considering the characteristics of the existing technology in terms of economy and uninterrupted power supply, it is difficult to popularize and apply it on a large scale, and it is also impossible to melt the ice on the ground wire.

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