SU1157603A1 - Outdoor high-voltage switch-gear - Google Patents

Abstract

1. OPEN HIGH-VOLTAGE DISTRIBUTION DEVICE, containing switches installed in a row, busbar bridges, successively ("lf f and P) connectors connecting at least two switches, portals with crossbars, on which the busbars are fixed , insulators for fastening bus bridges, disconnectors with current leads, with bus bridges placed parallel to busbars, such as, in order to reduce material consumption and improve working conditions, bus bridges are placed under team wickers. 2. Device POP.1, characterized in that the portals are provided with additional traverses on which insulators are fixed for fastening bus bridges. 3. The device according to Claim 1, is different (Led by the fact that the insulators for mounting bus bridges are made in the form of supporting insulating co-struc- tures I and on them are additionally attached to the current leads to the disconnectors.

Description

The invention relates to electrical engineering, devices to power, and energy distribution, and can be used in power plants and substations.

The purpose of the invention is to reduce the material consumption of the distribution device and to improve the working conditions of personnel by eliminating the location of busbars, bridges over the switches.

FIG. 1 is a diagram of the filling of the OR in FIG. 2 — the switchyard when mounting bus bridges on the suspension insulators; the plan in FIG. figure 4 .- the same, when using the reference disconnectors; Fig. 5 shows the switchgear when installing bus bridges on supporting insulators, a plan; On fig.6 - section bb of FIG. 5 (using overhead disconnectors).

The open switchgear (FIG. 1) is made for a circuit of three switches for two connections, but its design allows other schemes to be implemented: four switches for three connections, a quadrilateral, transformers — buses with a one-and-a-half connection of lines, etc.

Fig. 3 shows a section through the cell of the switchyard when mounting bus bridges on suspension insulators and when using suspension disconnectors. On the switchyard 1 switches are installed in one row, suspended disconnectors 2, busbars 3, mounted on the cross-bars 4 of the upper level of the portals. Bus bridges 5 for the series connection of switches 1 located in adjacent cells are fixed on the cables of 6 additional traverse J under busbars 3 and a para-belle them. Additional traverses 7 are located below the traverse 4 of the upper level of the portals. On beams 8 suspended disconnectors 2 are installed and the outputs of connections are fixed,

Fig, 4 shows a section through the cell of the switchyard when installing not suspended, but supporting disconnectors 9, Busbar bridges 5 are also fixed on insulators 6 additional crossheads 7 portals,

Figure 6 shows a section through an open switchgear cell when mounting bridge bridges on insulating support structures and using suspended disconnectors. Bus bridges 5 for series connection of switches located in adjacent cells are fixed on supporting insulating structures 10 (FIG. 6) under busbars 3 parallel to them.

Bus bridges 5 can be made of pipes, the various phases of bus bridges can be skipped at different heights. The current leads 11 of the suspended disconnectors 2, connected to the busbar bridges 5, are also fixed to the insulating support structures 10.

For servicing switches 1, a bridge crane 12 can be installed on the beams of 7 gantries, but it is also possible to service the open switchgear with boom cranes.

Figure 6 shows a section through the cell of the switchyard when installing overhead disconnectors 2 in it, However, disconnectors can also be made basic. In this case, tire bridges 5 can be fixed on supporting insulating structures 10.

Fixing bus bridges 5 to insulators under busbars frees up the space above the switches, thereby eliminating the source of the electric field above the switches. ,

When the switches are repaired, the voltage of the electric field will be much lower than in the switchyard, where bus bridges are installed above the switches. This improves the working conditions of personnel in the switchgear of this design. In addition, in the absence of bus bridges over the switches, repair work is simplified, since in this case, you can install any boom mounting hoist crane and switch on that switch. will instead use a bridge crane moving along the switchboard portals along-p and off ochalnik,

In the proposed ORU design, the length of busbar bridges and, consequently, the consumption of busbars is also reduced. In addition, the weight of the portals is reduced, especially when installing bus bridges on the supporting insulators, since the loads from the bus bridges in this case are not transmitted to the portals.

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Claims (3)

1. An open HIGH VOLTAGE DISTRIBUTION DEVICE, comprising circuit-breakers, bus bridges, connecting at least two switches in series, portals with traverses, on which busbars are mounted, busbar insulators, busbar disconnectors, and busbar disconnectors bridges are placed parallel to the busbars, which is characterized in that, in order to reduce material consumption and improve working conditions, busbar bridges are placed under the busbars. 2. The device according to claim 1, with the proviso that the portals are equipped with additional traverses on which insulators are mounted for mounting busbar bridges. 3. The device according to claim 1, characterized in that the insulators for mounting the busbar bridges are made in the form of supporting insulating structures and they are additionally secured with current leads to the disconnectors.