Fixed connectors for live working on high voltage lines
A technology for live work and high-voltage lines, applied in conductive connections, connections, circuits, etc., can solve the problems of low load on distribution lines, burnout of lead connectors, burnout of busbar side clips, etc., to achieve large current capacity and ensure stable operation. , the effect of preventing burnout
Active Publication Date: 2016-08-17
STATE GRID CORP OF CHINA +1
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Problems solved by technology
However, many existing connecting fittings can only be carried out in a power failure state. Due to the power supply reliability requirements of the power system, many tasks need to be carried out in a live state
However, although the existing connecting fittings are of a great variety, they can only be used for operations in a power failure state due to conditional restrictions.
[0003] Although there are live loading and unloading clamps in the busbar fittings of substations, there are the following problems: when the current load is too large, on the one hand, it is easy to burn the lead joints
On the other hand, it is easy to burn out the busbar side clamp
Therefore, the existing substation side loading and unloading clamps can only be used as temporary disposal in case of accidents, or for branch line connection with small load on distribution lines.
Method used
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[0022] figure 1 It is a structural schematic diagram of the present invention, figure 2 for figure 1 The left view after removing the fixing block and connecting piece in , image 3 It is a structural schematic diagram of the fixed plate of the present invention, Figure 4 It is a schematic diagram of the connection structure of the fixing plate and the connecting piece of this side, as shown in the figure.
[0023] A fixed connector for live work on high-voltage lines provided by the present invention includes a main connection part connected to the high-voltage line and a secondary connection part fixedly arranged on the main connection part, the main connection part includes a connection block 1, and the connection block 1 A connection cavity 10 is provided inside along its length direction, the connection cavity 10 penetrates the connection block 1, and the connection block 1 is provided with a top block 12 for cooperating with the top of the connection cavity 1 and cl...
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The invention provides a fixed connector used for hot-line work on a high voltage line. The fixed connector comprises a main connecting part connected with the high voltage line and an auxiliary connecting part fixedly arranged on the main connecting part. The main connecting part comprises a connecting block, a connecting cavity is formed in the connecting block in the length direction of the connecting block, a top block used for being matched with the top of the connecting cavity and clamping and fixing the high voltage line is arranged in the connecting cavity, and the top block can move up and down in the connecting cavity. A line inlet is formed in the side wall of the connecting cavity so that the high voltage line and a branch line can be stably and reliably connected. It can be guaranteed that hot-line operation is performed, power does not need to be cut off, and an electric power system runs stably. Moreover, the fixed connector has high current-carrying capacity and can effectively prevent the high voltage line side or the branch line side from being burnt out, and thus stable operation of the electric power system is guaranteed. The fixed connector is simple in structure and convenient to implement.
Description
technical field [0001] The invention relates to the field of electric equipment, in particular to a fixed connector for live working on high-voltage lines. Background technique [0002] In the power system, the high-voltage line is mainly used to transmit electric energy, and the high-voltage line is also connected to many electrical equipment, such as the connection between various switches, isolating switches and busbars in substations, or the connection of lead wires such as lightning arresters on high-voltage lines and ultra-high-voltage lines to busbars. , At the same time, there are also a large number of distribution lines to install branch lines, etc., all need to connect the busbar (or main line) to other downconductors (branch lines). This connection fittings are called connecting fittings in the power department. However, many existing connecting fittings can only be carried out in a power failure state. Due to the power supply reliability requirements of the powe...
Claims
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IPC IPC(8): H01R9/16H01R9/18
Inventor 刘清彭元泽景文炳范文玲周延静孟颖党小宇刘行潘阳张韦张维平刘晓琴
Owner STATE GRID CORP OF CHINA