Transmission line split conductor sag adjustment tool
A technology for splitting conductors and transmission lines, which is applied in the direction of overhead lines/cable equipment, etc., which can solve the problems of increased labor intensity, difficult construction, and many operators, so as to reduce construction difficulty, reduce labor intensity, and operate safely and reliably. Effect
Active Publication Date: 2016-08-24
STATE GRID CORP OF CHINA +1
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Problems solved by technology
[0002] For ultra-high voltage transmission lines of 220KV and above, in order to transmit power over long distances and reduce line reactance, each phase conductor uses more than 2 to 4 split conductors, and the arrangement is various, and the spacing and sag of the sub-conductors of the same phase are required to be the same Yes, due to the difference in construction, installation and operation, the spacing and sag of the sub-conductors will change, which will affect the normal operation of the transmission line. In the past, tools such as zipper hoists were used to adjust the sag. The method is complicated and there are many operators. The use of tools is heavy, the construction is difficult, and the labor intensity increases
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[0009] Examples, see attached figure 1 , the transmission line split wire sag adjustment tool is provided with a wire tensioner boss 11-1 on the left end of a horizontal edge of the triangular wire tensioner 11, and the wire tensioner boss 11-1 passes through the clamping boss 1-1 Use the positioning pin 12 to connect the clamping body 1, in the middle of the wire tensioner 11, there is an arc-shaped chute 11-2 under the corresponding bottom of the clamping body 1, and use the sliding pin 2 in the chute 11-2 Connect the cable body 1. A long hypotenuse of the wire tensioner 11 is provided with an arc-shaped chute two 11-3, and the connecting pin shaft 5 is movably connected with the adjustment plate 6 in the chute two 11-3. Two spring seats 3 are fixed in the middle of the limit, a back-moving spring 4 is installed between the two spring seats 3, and a spring cover 10 is arranged on the back-moving spring 4. Connect the left end of labor-saving leading screw 7 with fastening ...
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The invention belongs to power transmission and transformation tools in the electric power industry, and particularly relates to a power transmission line bundled connector sag adjustment tool. The power transmission line bundled connector sag adjustment tool comprises a wire grip (11), a positioning pin (12), a connecting hinge pin (5), an adjustment plate (6), a labor saving lead screw (7), a ratchet wheel spanner (8) and a connecting plate (9). A wire grip boss (11-1) is arranged on a horizontal edge of the triangular wire grip (11) and connected with a wire clamping body (1) by means of the positioning pin (12) and through a wire clamping boss (1-1). An arc-shaped first sliding groove (11-2) is formed in the wire grip (11). An arc-shaped second sliding groove (11-3) is formed in the long inclined edge of the wire grip (11) and is movably connected with the adjustment plate through the connecting hinge pin (5). A reset spring (4) is arranged in the middle of the long inclined edge of the wire grip (11) through a spring base (3). A spring cover (10) is arranged on the upper face of the reset spring (4). The power transmission line bundled connector sag adjustment tool is light in weight and convenient to use, the construction difficulty is lowered, the number of operators is lowered, and operation is safe and reliable.
Description
technical field [0001] The invention belongs to construction tools for power transmission and transformation in the electric power industry, in particular to a sag adjustment tool for split conductors of power transmission lines. Background technique [0002] For ultra-high voltage transmission lines of 220KV and above, in order to transmit power over long distances and reduce line reactance, each phase conductor uses more than 2 to 4 split conductors, and the arrangement is various, and the spacing and sag of the sub-conductors of the same phase are required to be the same Yes, due to the difference in construction, installation and operation, the spacing and sag of the sub-conductors will change, which will affect the normal operation of the transmission line. In the past, tools such as zipper hoists were used to adjust the sag. The method is complicated and there are many operators. The use of tools is heavy, the construction is difficult, and the labor intensity increase...
Claims
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IPC IPC(8): H02G1/02
Inventor 张国庆许青李大明史启光王孟男么永生王永灵卜洪亮
Owner STATE GRID CORP OF CHINA