CN201984882U

CN201984882U - Automatic deicing overhead conductor

Info

Publication number: CN201984882U
Application number: CN2010206620679U
Authority: CN
Inventors: 苏立祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-08
Filing date: 2010-12-08
Publication date: 2011-09-21
Anticipated expiration: 2020-12-08

Abstract

The utility model relates to an overhead power line of power networks, in particular to an automatic deicing overhead conductor. Equipment of the automatic deicing overhead conductor comprises a transmission conductor with a heating cord, a temperature and humidity measurement and control device, a microcomputer processing and protection system, a relay protection device, an accessory line high-voltage circuit breaker, a power supply control and protection switch for the heating of an electric stove wire, and a disconnecting switch. The technology and the working principle of the automatic deicing overhead conductor realizes that manual deicing for ice resistance and electrical power protection when overhead power lines are iced is not needed, and the overhead power lines are automatically deiced.

Description

Automatic ice-melting elevated lead

One, technical field

The utility model relates to the overhead power line of power network, particularly automatic ice-melting elevated lead.

Two, background technology

At present, when the aerial condutor of China's power network is met wind and snow, sleet at extremely frigid zones, the normal aerial condutor icing phenomenon that takes place, cause down bar, fall accidents such as base, iron tower cave in, broken string, can't normal power supply, even cause large-area power-cuts, power network safety operation is caused have a strong impact on, and have a strong impact on the construction of people's lives, railway traffic transportation, industrial and agricultural production, national economy.When the aerial condutor icing takes place when, often need set out a large amount of human and material resources, recovery vehicle, protect electricity, make an inspection tour, rush to repair and resume work and brought great difficulty for the anti-ice of national grid employee, moreover also can only take the mode of artificial deicing to solve, in the work of carrying out artificial deicing, even cause casualties, bring and directly cause enormous economic loss for national grid, national economy.

In order to solve the icing problem of power network aerial condutor, invention can automatic ice-melting elevated lead hereby.

Three, summary of the invention

The technical problems to be solved in the utility model is how to make when aerial condutor generation icing and the problem of automatic defrosting, makes it avoid carrying out artificial deicing and technical problem that anti-ice is protected electricity.

For addressing the above problem, the technology that the utility model adopts is:

Its equipment includes: have the overhead power line transmission pressure main body of electric furnace heating wire, the warm and humid measure and control device of high-tension line, MICROCOMPUTER PROCESSING protection system, protective relaying device and annex: circuit primary cut-out, electric furnace heating wire heating power supply control protection switch, isolating switch etc.

Because the utility model is widely used in that China is high and cold, the area of wind and snow, sleet, the overhead power line construction development of State Grid's net had the value of popularization.For national grid safe and stable operation, anti-ice damage, recommendation for admission to school electricity, has great function.When the overhead power line icing takes place when, avoid taking artificial deicing, save the work that the anti-ice of national grid employee is protected tour, repairing and the recovery of electricity energetically, saved human and material resources, repairing expense and the cost of artificial deicing widely.The loss of life or personal injury that artificial ice detachment brings for the electric power employee are being implemented in minimizing, help improving the construction of electric power netting safe running, national economy, can be national grid, the huge economic benefit of development of the national economy creation, reduce the heavy losses that the electrical network ice damage causes to country.Adopt the utility model technology to transform and build in the power network overhead wire development of country, the utility model will be for having given play to huge economic benefit in national grid, the economic construction.

Four, description of drawings

Concrete structure of the present utility model is provided by the following drawings.

Fig. 1 is according to the overhead power line transmission pressure structural representation that has electric furnace heating wire that the utility model proposes.

Sign in the accompanying drawing is represented respectively:

1, overhead power line transmission pressure main body; Electric furnace heating wire in 1-2, the transmission pressure.

Fig. 2 is the technical scheme schematic diagram according to the automatic ice-melting elevated lead that the utility model proposes.

Sign in the accompanying drawing is represented respectively: the overhead power line transmission pressure main body that 1, has electric furnace heating wire; 2, the warm and humid measure and control device of high-tension line; 3, MICROCOMPUTER PROCESSING protection system; 4, protective relaying device; 5, circuit primary cut-out; 6, electric furnace heating wire heating power supply control protection switch; 7, isolating switch.

Five, embodiment

Operation principle of the present utility model: when temperature descends 0 ℃ or-1 ℃ ,-2 ℃; humidity reaches when freezing (definite value can be adjusted according to concrete area); it is icing that warm and humid measure and control device detects overhead power line; send through the MICROCOMPUTER PROCESSING protection system that " overhead power line is icing, need carry out deicing and handle." chimes of doom; protective relaying device action; tripping circuit both sides primary cut-out; isolating switch closes; the electric furnace heating wire heating power supply that closes control protection switch; the transmission pressure that has electric furnace heating wire is carried out heat treated; (the temperature definite value can descend according to the overhead transmission line ambient temperature when the conductor temperature heating rises to 20-30 ℃; the line footpath; the electric pressure of carrying and adjust); the circuit icing all melts; send the chimes of doom of " the overhead power line icing all melts; line temperature is 20-30 ℃, can recover to send " through the MICROCOMPUTER PROCESSING protection system, the relaying protection action; disconnect electric furnace heating wire heating power supply control protection switch; disconnect isolating switch, the circuit both sides primary cut-out that closes recovers the conveying to circuit.

Technology and operation principle thereof that the utility model adopts when having solved overhead power line generation icing, avoid carrying out artificial deicing and anti-ice guarantor electricity, the technical problem of automatic ice-melting elevated lead.

Claims

1. automatic ice-melting elevated lead; its apparatus characteristic is that it includes: have electric furnace heating wire overhead power line transmission pressure main body (1), in the overhead power line transmission pressure, be added with electric furnace heating wire (1-2), the warm and humid measure and control device of high-tension line (2), MICROCOMPUTER PROCESSING protection system (3), protective relaying device (4), circuit primary cut-out (5), electric furnace heating wire heating power supply control protection switch (6) and isolating switch (7).