CN102136711A - Method for forming resistance heat to melt ice on high-tension line with low tension - Google Patents

Abstract

The invention discloses a method for forming resistance heat to melt ice on a high-tension line with low tension. Firstly, a power supplier transmits low tension to a frozen high-tension line; the surface area of the frozen high-tension line is calculated; the current value of output low tension is adjusted according to the surface area of the frozen high-tension line; and ice on the frozen high-tension line is molten through resistance heat produced between the high-tension line and the ground. The method is simple and reliable, can thoroughly remove ice adhered on the surface of the high-tension line, does not need complex equipment, saves the cost, can not bring influence on the normal operation of equipment, and is applicable to large-scale long-distance transmission equipment and communication equipment.

Description

Form the freezing method of resistance pyrolysis high-voltage line with low tension

Technical field

The present invention relates to a kind of with the freezing method of low tension formation resistance pyrolysis high-voltage line.

Background technology

The cryogenic freezing disaster frequently took place in recent years, and especially the infringement of causing for long distance power transmission system and communication system of the sleety weather that continues of China's southern area in 2008 is particularly outstanding.

The iron tower of long distance power transmission system and the base station of communication system are provided with high mountain and unfrequented by-place usually, in case be subjected to the freezing influence that waits hazard weather, the normal power supply that can involve an area with communicate by letter, well imagine to the loss that national economy causes.The destructive power of such extreme weather is huge, how effectively to dissolve freezing on the high-tension line of enduring cold and has become a problem demanding prompt solution.

Summary of the invention

The purpose of this invention is to provide and a kind ofly form the freezing method of resistance pyrolysis high-voltage line, dissolve freezing on the high-tension line of enduring cold with low tension, minimum so that loss is dropped to.

Technical scheme of the present invention is as follows:

A kind of with the freezing method of low tension formation resistance pyrolysis high-voltage line, it is characterized in that specifically may further comprise the steps:

(1), high-tension line endures cold, supplier of electricity stops to carry high-tension electricity to the high-tension line of enduring cold, and disconnects all kinds of transformers that link to each other with the high-tension line of enduring cold;

(2), with the high-tension line of enduring cold by lead ground connection, carry low tension to the high-tension line of enduring cold, calculate the surface area of the high-tension line of enduring cold, and match the current value of the low tension of output by the surface area size of the high-tension line of enduring cold;

(3), after a period of time, the heat that between high-tension line and ground, has a resistance, thus the high-tension line of enduring cold is heated control heating-up temperature to 80 ~ 120 ℃, 10 ~ 20 minutes heating times;

(4), freezing on the high-tension line of enduring cold melt gradually, removes the lead of removing freezing high-tension line ground connection, supplier of electricity recovers to the high voltage supply of removing freezing high-tension line.

Beneficial effect of the present invention:

The inventive method is simple, reliable, can remove the freezing of high-tension line surface attachment completely, need not complex apparatus and finish, save cost, can not bring influence, be applicable to large-scale long distance power transmission equipment and communication equipment the operate as normal of equipment itself.

Embodiment

A kind of with the freezing method of low tension formation resistance pyrolysis high-voltage line, specifically may further comprise the steps:

(1), high-tension line endures cold, supplier of electricity stops to carry high-tension electricity to the high-tension line of enduring cold, and disconnects all kinds of transformers that link to each other with the high-tension line of enduring cold;

(2), with the high-tension line of enduring cold by lead ground connection, carry low tension to the high-tension line of enduring cold, calculate the surface area of the high-tension line of enduring cold, and match the current value of the low tension of output by the surface area size of the high-tension line of enduring cold;

(3), after a period of time, the heat that between high-tension line and ground, has a resistance, thus the high-tension line of enduring cold is heated control heating-up temperature to 80 ~ 120 ℃, 10 ~ 20 minutes heating times;

(4), freezing on the high-tension line of enduring cold melt gradually, removes the lead of removing freezing high-tension line ground connection, supplier of electricity recovers to the high voltage supply of removing freezing high-tension line.

Claims (1)

1. one kind forms the freezing method of resistance pyrolysis high-voltage line with low tension, it is characterized in that specifically may further comprise the steps:

(1), high-tension line endures cold, supplier of electricity stops to carry high-tension electricity to the high-tension line of enduring cold, and disconnects all kinds of transformers that link to each other with the high-tension line of enduring cold;

(2), with the high-tension line of enduring cold by lead ground connection, carry low tension to the high-tension line of enduring cold, calculate the surface area of the high-tension line of enduring cold, and match the current value of the low tension of output by the surface area size of the high-tension line of enduring cold;

(3), after a period of time, the heat that between high-tension line and ground, has a resistance, thus the high-tension line of enduring cold is heated control heating-up temperature to 80 ~ 120 ℃, 10 ~ 20 minutes heating times;

(4), freezing on the high-tension line of enduring cold melt gradually, removes the lead of removing freezing high-tension line ground connection, supplier of electricity recovers to the high voltage supply of removing freezing high-tension line.