SU1686556A1 - High-voltage switchboard arrangement - Google Patents

Abstract

The invention relates to electrical engineering and can be used for the busbar of open distribution devices. The purpose of the invention is to increase the reliability of operation by reducing the mechanical vibrations acting on the busbar. The device contains a split phase busbars, loops, high-voltage gaps, the components (wires) of which are connected by mechanical connections. The diameter of the mechanical connections is smaller than the diameter of the wires of the split phase of the busbars. Mechanical connections are movably connected to a rigid pipe installed along the longitudinal axis of the split phase of the bus-bar. 6 Il.

Description

AND

The invention relates to electrical engineering and can be used in substations as high voltage switchgear.

The purpose of the invention is to increase the reliability of operation by reducing the mechanical vibrations acting on the busbar.

Fig. 1 shows a high voltage switchgear with a loop, a general view; figure 2 - the same, with high-voltage descents; FIG. 3 shows a split phase of a high-voltage switchgear busbar, general view; figure 4 is the same, side view; Fig. 5 shows a variant with attachment points that are movable along a rigid pipe; figure 6 is the same, side view.

The high voltage switchgear contains a split phase busbars, loops 1, high voltage slopes 2, the components (wires) 3 of which are interconnected by mechanical connections 4 located in planes perpendicular to the split phase. The mechanical connections 4 are electrically conductive with a diameter less than the diameter of the components 3 of the split phase busbars. The fastening points 5 of each mechanical link 4 to the components 3 of the split phase are located in different planes, intersecting the phase in directions perpendicular to its longitudinal axis 6, through the attachment points 5.

The distance I between these planes is determined from the ratio

2 Sl / d 10, where d is the step of the split phase of the bus-bar.

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o ate

ON

The components 3 of the split phase busbars are connected to the inner tube 7 located on the axis 6 of the split busbar. Placing a rigid pipe 7 connected to the components 3 of the split phase of the bus-bar gives it additional rigidity, reduces the amplitude of its oscillations under the wind, prevents wire breaks and the likelihood of overlap between the support and cable 1, bridge, high-voltage descent 2 when they approach wind The presence of pipe 7 inside the split phase of the busbar reduces the intensity of the electric field on its surface and reduces the intensity of the corona of the busbar.

For the purpose of additional damping of mechanical vibrations, the attachment points 8 of the attachment of oblique mechanical links 4 to the pipe 3 located on the axis 6 of the wire 3 are movable, sliding along this pipe 7.

The use of the invention will significantly improve the reliability of distribution devices.

Claims (1)

Claims of the invention High-voltage switchgear containing split phase busbars, loops, high-voltage descents, the components of which are interconnected by conductive mechanical connections located in different planes, in order to increase the reliability of operation by reducing mechanical oscillations acting on the busbar, it is equipped with a rigid pipe located along the longitudinal axis of the split phase of the busbar, with attachment points to which the ends of the mechanical FIR bonds, said fastening assemblies are movable slidably along the rigid pipe, and the mechanical bond formed with a diameter smaller than the diameter constituting the split phase busbar. FIG. five 4J