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Bundle conductor structure capable of preventing and removing ice by utilizing economic current
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A technology of splitting wires and economical current, which is applied to circuits, power cables, electrical components, etc., and can solve problems affecting the normal power supply of lines
Inactive Publication Date: 2015-02-18
STATE GRID CORP OF CHINA +3
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Problems solved by technology
[0003] The purpose of the present invention is to solve the problem that the existing split wire anti-icing and deicing technology will affect the normal power supply of the line, and provide a split wire structure that can use economical current anti-icing and deicing
Method used
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specific Embodiment approach 1
[0018] Specific implementation mode one: combine figure 1 and figure 2 Describe this embodiment, a split wire structure that can use economical current for anti-icing and deicing described in this embodiment, each split wire is provided with an ice-melting branch switch, and multiple groups of insulating spacers are arranged between the split wires , the plurality of groups of insulating spacer bars are arranged along the length direction of the wire.
[0019] The electrical principle of a split conductor structure that can use economical current for anti-icing and de-icing described in this embodiment is as follows: figure 1 shown. Take the double-split wire as an example, U is the power supply voltage; Z F is the load impedance; I F×2 is the total load current flowing through the double split wire; I F×1 is the branch current flowing through the single conductor of the double-split wire; K1 and K2 are the ice-melting branch switches of the two single conductors; R1 and...
specific Embodiment approach 2
[0030] Specific Embodiment 2: This embodiment is a further limitation of the split conductor structure described in Embodiment 1 that can use economical current to prevent ice and deicing. In this embodiment, the insulating spacers are made of synthetic insulators insulation spacers.
[0031] Insulation spacers made of synthetic insulators are light in weight and have good insulation properties, making them ideal for support and insulation of split conductors. The two ends of the insulating spacer can be fixed on the wire, which is very convenient to use.
specific Embodiment approach 3
[0032] Specific implementation mode three: combination image 3 Describe this embodiment mode. This embodiment mode is a further limitation on the structure of a split conductor that can use economical current for anti-icing and deicing described in Embodiment 1. In this embodiment mode, for four-split conductors, each group of insulating spacers includes 5 insulating spacers, the 5 insulating spacers are located in the same plane, the plane is perpendicular to the length direction of the split wires,
[0033] Wherein the three insulating spacers form three sides of a square, which are respectively used to support three pairs of adjacent wires, and the four wires of the four-split wires are the four vertices of the square,
[0034] The remaining two insulating spacers are used as two diagonals of the square, and are respectively used to support two pairs of opposite wires.
[0035] In addition to the insulating function, the insulating spacer also needs to have a supporting f...
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Abstract
A bundle conductor structure capable of preventing and removing ice by utilizing economic current relates to the ice preventing and removing technology of bundle conductors. The bundle conductor structure aims at solving the problem that the existing ice preventing and removing technology of the bundle conductors influences normal power supply of a circuit. Insulation partition rods are arranged between the bundle conductors, an ice meltingbranch switch is arranged on each bundle conductor, and the ice meltingbranch switches are located at the closed positions during normal operation. When the ice melting operation is carried out on one of the bundle conductors, the ice melting branch switch on the corresponding bundle conductor is kept closed, the ice melting branch switches on the other bundle conductors are switched off, and all current is transmitted through the corresponding ice melting branch, so that ice is prevented and removed under the condition of normal power supply of the circuit for the corresponding bundle conductor. The bundle conductor structure is applied to prevent and remove ice by utilizing the economic current of the bundle conductors.
Description
technical field [0001] The invention relates to anti-icing and de-icing technology for split wires. Background technique [0002] my country has widely used split wires to transmit electric energy. Due to the skin effect of the current conveyed by wires, the transmission capacity and economic benefits of using split wires to transmit electricity are significantly better than single wires. Since 2008, power gridicing accidents caused by atmospheric icing weather have occurred frequently in my country. In order to prevent accidents such as ice-coated disconnection, downed towers, and ice-coated flashovers on power lines, the research on anti-icing technology for power transmission and distribution lines has been comprehensively carried out and considerable progress has been made. At present, the research work on icing prevention and control of power grids mainly focuses on the physical properties of icing on a single conductor, the accumulation and growth of icing, and the ...
Claims
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Application Information
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