RU24323U1 - CABINET OF COMPLETE DISTRIBUTION DEVICE - Google Patents

Description

-f-o about 21; about ; 7 COMPLETE DISTRIBUTION CABINET

The utility model relates to devices for the distribution of electricity, and specifically, to cabinets of complete distribution devices.

Known complete switchgear Utility model No. 20961, publ. 11/20/02 .. The device case is divided into compartments. In the upper compartment there are busbars with a busbar disconnector, electrically connected to a current source and a switch attached by a base to the partition separating the busbar compartment from the downstream high-voltage compartment. In the high-voltage compartment there is a switch connected to a current transformer, which in turn is connected to load buses with a linear disconnector. The load buses are located in the cable compartment next to the high voltage compartment. The device comprises a low voltage relay compartment; located simultaneously in the volumes of the high-voltage and cable compartment and separated from them by partitions. Electrical equipment housed in the device is installed permanently, which complicates its operation and maintenance.

As a prototype, the cabinet of the complete switchgear is selected. RF Patent 2172545, publ. 08/20/2001. The cabinet is divided into two parts by a vertical partition. These volumes, in turn, are divided by horizontal partitions mounted on the outer walls of the cabinet and on the said vertical partition into compartments. In the lower part of the cabinet from the front of the front panel there is a compartment with a withdrawable element, which is the main circuit electrical equipment mounted on a wheeled platform. Behind the compartment with the withdrawable element and at the same level, there is a compartment with busbars mounted on supporting insulators. Above the busbars there is a compartment with internal busbar elements and feeder contacts. On a horizontal partition above the drawer compartment

НВВ 11/00

relay cabinet. The relay cabinet has an extension compartment, through which a confuser channel is formed to relieve excess pressure, and in which the elements of the auxiliary circuits are mixed. The placement of electrical equipment on the withdrawable element simplifies its operation and maintenance. The main disadvantage of the prototype is that while maintaining the occupied area of the cabinet, it is possible to install only one withdrawable element in it. Installing an additional withdrawable element in the same volume of the cabinet is fundamentally impossible, since it is impossible to connect another withdrawable element to the busbars, the compartment of which is located in the lower part of the cabinet.

The utility model is based on the task of increasing the utilization rate of busbars, reducing metal consumption and increasing the efficiency of using the occupied space.

The problem is solved in that in the cabinet of the complete switchgear, which includes the enclosure, the volume of which is divided by partitions into compartments in which the relay unit, busbars, feeder contacts and withdrawable element are installed, which is the main circuit electrical equipment installed on the platform, connected through passage elements to new tires

is that the cabinet is equipped with an additional withdrawable element, the internal volume of the cabinet body is divided in height by two horizontal partitions into three sections, the lower of which is divided by a vertical partition into compartments, in one of which the said withdrawable element is installed, in the other - the first feeder contact, the upper the section is also divided by vertical partition into compartments, one of which has an additional withdrawable element, the other has a second feeder contact, in the middle section there is a relay unit and a compartment with boronic tires, which additionally installed communicating through connected electrical elements additional withdrawable element.

The utility model is illustrated by drawings, in which: FIG. 1- wardrobe with

mounted switches, FIG. 2 - cabinet with installed voltage transformer and auxiliary transformer.

The cabinet of the complete switchgear has a housing 1, the volume of which is divided by partitions. Two horizontal partitions 2 divide the volume in height into three sections - three levels

The lower section (lower level) is divided by a vertical partition 3 into compartments. On the side of the front panel there is a compartment 4 of the withdrawable element. In the compartment 4 on the wheeled roll-out platform 5, the electrical equipment of the main circuits is installed, for example: switch 6 and current transformer 7 (Figure 1) or auxiliary transformer 8 (Figure 2). In another compartment 9 of the lower section, at the same level as the electrical equipment, there is contact 10 of the feeder.

In the middle section, a relay block 11c is located with the corresponding measuring and control equipment. In the same middle section of the cabinet from the rear wall are busbars 12.

The design of the upper section as a whole repeats, and in some cases, is identical, the design of the lower section. It is also divided by a vertical partition 13 into two compartments. On the front panel side, there is a compartment 14 of an additional withdrawable element, where electrical equipment of the main circuits is installed on the wheel withdrawal platform 15, for example: a switch 16 and a current transformer 17 (Figure 1) or a voltage transformer 18 (Figure 2). In another compartment 19 of the upper section, at the same level as the switch 16, is placed contact 20 of the feeder.

The electrical equipment of the switchgear cabinet is connected to the busbars 12 through bushing insulators 21 mounted respectively on the vertical partitions 3, 13 and through bushing measuring current transformers 22 (Fig. 1) or through bushing insulators 23 (Fig. 2) mounted on horizontal

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partitions 2. Busbars 12, the internal busbar elements of the device are mounted on supporting insulators 24.

The proposed design has a three-level placement of elements. The installation of busbars in the middle section allows voltage to be applied to two withdrawable elements (electrical equipment) located in the lower section and in the upper section. Thus, in the inventive device in one cabinet of the switchgear in the standard volume are two withdrawable elements, which increases the efficiency of use of the occupied space and increases the efficiency of use of busbars.

The utility model can be used at power plants and substations of power systems with a voltage of 6-10 kV.

Claims (1)

A cabinet of a complete switchgear, including a housing, the volume of which is divided by partitions into compartments in which the relay block, busbars, feeder contacts and withdrawable element are installed, which is the main circuitry installed on the platform, connected via busbar elements to the busbars, characterized in that equipped with an additional withdrawable element, the internal volume of the housing is divided in height by two horizontal partitions into three sections, the lower of which is vertically divided with an external partition into compartments, in one of which the said withdrawable element is installed, in the other - the first feeder contact, the upper section is also divided into compartments by a vertical partition, in one of which an additional withdrawable element is installed, in the other - the second feeder contact, in the middle section a relay block and a compartment with busbars, to which electrical equipment of an additional withdrawable element is connected through additionally installed passage elements.