Protection method and insulated bevel for preventing tubular bus from short-circuiting caused by dropping of ice coating
A technology of tubular busbar and insulating umbrella, which is applied in busbar installation, cable installation, electrical components, etc., can solve the problems of affecting power supply reliability, damage equipment, busbar voltage loss, etc., achieving easy implementation, simple connection method, The effect of ensuring the safety of power supply
Inactive Publication Date: 2011-02-02
XUCHANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER
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Problems solved by technology
When the weather temperature is low or it rains or snows, a 4-5 meter long ice belt is often covered under the incoming line. As the weather improves, the ice belt begins to melt. , the ice belt falls on the outgoing line below, causing a phase-to-phase short circuit of the outgoing line, resulting in a loss of voltage on the busbar, which may damage the equipment and affect the reliability of power supply
Method used
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[0016] like figure 1 , figure 2 , image 3 As shown in the figure, 1 is the skirt body, and the skirt body 1 is an axially hollow skirt body. An umbrella skirt 2 is fixed on the outside of the skirt body 1. There is a through seam along the axial direction of the skirt body 1, which is connected with the skirt body 1. The connected umbrella skirt 2 also forms a through seam like the skirt body 1 ; a connecting hole 3 is provided at the through seam of the umbrella skirt 2 . Figure 4 It is a schematic diagram of the tubular busbar structure without a fixed insulating shed; Figure 5 It is a schematic diagram of the structure of the tubular busbar with the insulating shed fixed. Open the through seam of the insulating shed, so that the insulating shed is stuck on the incoming line, and then lock the connecting hole 3 of the insulating shed, so that the insulating shed is only fixed on the line. from Figure 5 It can be seen that the fixing method of the insulating sheds f...
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The invention discloses a protection method and an insulated bevel for preventing a tubular bus from short-circuiting caused by the dropping of an ice coating. According to the protection method for preventing the tubular bus from short-circuiting caused by the dropping of the ice coating, the insulated bevel is fixed on the tubular bus of a transformer substation. The insulated bevel of the invention comprises an axial hollow bevel body; the bevel is fixed outside the bevel body; a ventilated slot is formed on the bevel body and the bevel; and connecting holes are formed on the bevel.
Description
technical field [0001] The invention discloses a protection method and an insulating shed for preventing short circuit of tubular busbar due to ice coating falling off, belonging to the technical field of substation transmission line wiring, and suitable for outdoor tubular busbars of 110KV and above. Background technique [0002] The incoming and outgoing lines of the transmission line of the substation are laid out in two layers, the upper layer is the incoming line and the lower layer is the outgoing line, and the voltage and phase of the incoming and outgoing lines are not compared one by one, so it is necessary to ensure that the incoming line and the outgoing line are between Absolute insulation can ensure the normal power supply of the power supply line. When the temperature is low or it rains or snows, the lower part of the incoming line is often covered with an ice belt of about 4-5 meters in length. As the weather improves, the ice belt begins to melt. , the ice t...
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IPC IPC(8): H02G7/00H02G5/00
Inventor 常朝柱刘四军刘亚辉麻会阳
Owner XUCHANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER