RU1800542C - High-voltage outdoor switch-gear - Google Patents

Abstract

SUMMARY OF THE INVENTION: the device comprises two busbar systems, chains of three circuit breakers and two connections between them. The circuit breakers are installed in three rows, while in one row parallel to the busbars, circuit breakers of the same series are installed, as well as bus and line disconnectors. Jumpers are installed above the middle row of switches to connect the connections. 3 ill.

Description

The invention relates to electrical engineering, to power distribution devices, and in particular to high voltage open switchgear (ORG), and can be used in power plants and substations.

The purpose of the invention is to reduce the overall dimensions and material consumption of outdoor switchgear.

Fig. 1 shows a single-line scheme for filling the switchgear; figure 2 - plan outdoor switchgear; in Fig.Z - section aa in Fig.2.

The switchgear contains two busbar systems 1, linear cell portals 2 and linear output 3, switches 5, bus 4, linear 6 and linear output 7 disconnectors of the reference type, current transformers 8, busbar lower bus 15, connecting busbars 1 to bus disconnectors 4, switches 5, current transformers 8 and linear cell disconnectors 6, jumpers of the upper channel 9 and 17, respectively connected by means of descents

10 to a common junction point of two linear switch-disconnectors b, by means of slopes 16 through linear output disconnectors 7 to outgoing linear 12, transformer 13 and reactor 14 connections. Along the switches 5, a highway 11 is provided for passage of vehicles and hoisting mechanisms and the possibility of installation and service. The circuit breakers 5 of each row are phase-wise installed in one line parallel to the axis of the busbars 1 with corresponding insulating distances between each other depending on the voltage class. The busbar 4 and linear cell 6 disconnectors are also mounted phase-wise parallel to the axis of the busbars 1, and adjacent linear cell-based disconnectors 6 are located on both sides of the linear cell portals 2 and their phases are offset relative to each other from the longitudinal axis of the chains, so that they do not exit for the dimensions of the switches 5. Also available

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constructive possibility of connecting a common fork point from two linear cell disconnectors b using slopes 10 to jumpers 9 of the upper channel installed above the middle row of switches 5 between the rows of linear cell portals 2, while the phases of two adjacent jumpers 9 are located with mutual alternation. To provide the possibility of servicing the jumpers 9 of the upper circuit bus of one circuit with the other disconnected, the insulating distance between the phases of different circuits is adopted, depending on the voltage class of the switchgear, in accordance with the norms that allow working on the bus of one circuit without disconnecting the others.

Changing the places of connection of the outgoing circuits to the busbars 1 in their field is done by connecting, via the loops of the jumpers 17 installed between the linear cell 2 and the linear output 3 portals, to the corresponding jumpers 9 on average

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the connections 14 connected to the linear connections 12, in the extreme span between the linear cell 2 and the linear output 3 portals from the transformer connections 13, the number of jumpers 17 corresponds to the number of jumpers 9 in the middle span. The jumpers 17 connected to the jumpers 9, related to the linear connections 12. Using JUMPERS 16 are connected to the line output disconnectors 7 installed on the other side of the linear output portals 3 and further with the reactor connection 14.

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Claims (1)

The use of the invention reduces the overall size and material consumption of the outdoor switchgear. The effect increases with the number of circuits alternating with shunt reactors installed on the outdoor switchgear from the side of transformer connections. SUMMARY OF THE INVENTION An open high voltage switchgear comprising circuits with two connections pointing in opposite directions and three switches mounted in three rows, two busbar systems, two rows of linear cell portals, two rows of linear output portals , reference type disconnectors installed in eight rows, including busbar disconnectors, line output disconnectors and linear cell disconnectors connected by a fork, characterized in that, in order to reduce neither dimensions nor material consumption, circuit breakers of each series, as well as bus and linear switch-disconnectors are phase-wise installed in one line parallel to the axis of the busbars, and adjacent linear switch-disconnectors are located on both sides of the Linear cell portals and their phases are offset relative to one another from the longitudinal axis of the chains , over the middle row of switches between the rows of linear cell portals, additionally introduced jumpers are installed, connected to the common point of the fork from two linear cell times ediniteley and linear output disconnector m, the phase of two adjacent webs are arranged in a mutually alternating. Fig, 1