RU172671U1 - LOW VOLTAGE COMPLETE DEVICE - Google Patents

Abstract

The utility model relates to the field of electrical engineering, namely to low-voltage package devices (NKU), intended for the reception and distribution of electrical energy of three-phase alternating current voltage of 380/220 V among consumers. It also combines the following auxiliary functions: automatic reserve input, own needs, street lighting feeder and organization of metering and measurement. The tasks of creating a utility model are to increase the power distributed by the complete device, while reducing its dimensions. The solution to these problems was achieved in the low-voltage complete device, comprising a cabinet in the form of a rectangular parallelepiped having an upper, lower and side walls fixed to the frame, an input and distribution part, and at least , one door, in that the introductory part is made in the upper part of the cabinet and is limited by the upper wall, side walls, horizontal facade strips and transverse guides, the distribution part is made in the lower part of the cabinet and is limited by the lower wall, back wall and side walls, the distribution part contains inside the cabinet there are cells in which retractable function blocks are installed, while retractable function blocks are made in the form of rectangular parallelepipeds and consist of a frame, side wall and faces evy panel. In the retractable function blocks can be installed block automatic input reserve. In withdrawable functional panels, an opening or sectional circuit breaker can be installed. In retractable function blocks, an automatic reserve input unit can be installed. In the retractable function blocks, circuit breakers can be installed. Retractable functional blocks can be made withdrawable. Retractable functional blocks may be configured to limit their extension. Functional accounting unit may have a vertical design. Functional accounting unit may have a horizontal design. In the distribution part, a reactive power compensation device can be mounted. Busbars can be made horizontal. Busbars can be made upright. The bottom of the distribution part may be covered by an insulating panel. A door can be fitted with a door lock. The low-voltage package device can be configured to operate at a rated current of power circuits up to 4000 A. 1 N. and 14 z.p. f-ly, 21 ill.

Description

The utility model relates to the field of electrical engineering, namely to low-voltage package devices (NKU), intended for the reception and distribution of electrical energy of three-phase alternating current voltage of 380/220 V among consumers. It also combines the following auxiliary functions: automatic input of a reserve, own needs, street lighting feeder and organization of accounting and measurement.

The prior art is represented by a low-voltage complete device of the Viliya series (http://tiz.ruelta.ru/files/tiz/NKY_Vilia/nku_serii_viliya_tehnicheskaya_informaciya.pdf) manufactured by Ruelta LLC, which contains two parts: in the upper section there are introductory, sectional switching devices and metering cabinets and automatic reserve entry, and at the bottom - busbars, measuring instruments and outgoing lines with a cable connection compartment. Moreover, in the upper part, each structural compartment is located in a separate frame. This solution allows you to minimize the size of the switchgear.

Known switchgear low voltage (RUNN-6) (RF certificate for utility model No. 38518, IPC H02B 7/00, publ. 2004) consisting of two parts: input-registration and distribution. The introductory and accounting part consists of two compartments: the introductory and the compartment of control and accounting devices. In the distribution part there are: a busbar bridge, automatic circuit breakers and a cable compartment, which is closed by a door and has a bracket for securing outgoing cables.

Known cabinet accounting and distribution ShUR-10 (RF Certificate for Utility Model No. 41197, IPC H02B 7/00, publ. 2004) consisting of two parts: input registration and distribution. The introductory and accounting part consists of three compartments: the introductory compartment, the compartment for control and metering devices and the compartment for the auxiliary box. In the distribution part there are: a busbar bridge, safety strips and a cable compartment closed by a door and having a bracket for securing outgoing cables.

Disadvantages: limited power distributed by the complete device to consumers.

The task of creating a utility model is to increase the power distributed by the complete device while reducing its size.

Achieved technical result increased density of installation of various electrical devices in a small housing.

The solution of these problems was achieved in a low-voltage complete device containing a cabinet in the shape of a rectangular parallelepiped having an upper, lower and side walls fixed to the frame, an input and distribution part, and at least one door, so that the input part is made in the upper part the cabinet and is limited by the upper wall, side walls, horizontal facade strips and transverse guides, the distribution part is made in the lower part of the cabinet and is limited by the lower wall, back wall and sides and walls inside the distribution cabinet portion comprises cells in which pull-out functional block, wherein the sliding function blocks are formed as rectangular parallelepipeds and consist of a frame, the side wall and the front panel.

In retractable function blocks, an automatic reserve input unit can be installed. In withdrawable functional panels, an opening or sectional circuit breaker can be installed. In retractable function blocks, an automatic reserve input unit can be installed. In the retractable function blocks, circuit breakers can be installed. Retractable functional blocks can be made withdrawable. Retractable functional blocks may be configured to limit their extension. Functional accounting unit may have a vertical design. Functional accounting unit may have a horizontal design. In the distribution part, a reactive power compensation device can be mounted. Busbars can be made horizontal. Busbars can be made upright. The bottom of the distribution part may be covered by an insulating panel. A door can be fitted with a door lock. The low-voltage package device can be configured to operate at a rated current of power circuits up to 4000 A.

The essence of the utility model is illustrated in the drawings of FIG. 1 ... 21, where

- in FIG. 1 is a cabinet

- in FIG. 2 shows a section aa,

- in FIG. 3 shows a section bb,

- in FIG. 4 shows the first version of the complete device,

- in FIG. 5 shows a side view of the first embodiment of the complete device,

- in FIG. 6 shows a second embodiment of the complete device.

- in FIG. 7 shows a side view of the second variant of the complete device,

- in FIG. Figure 8 shows the mounting of meters and terminal blocks,

- in FIG. 9 shows a side view of the counters and terminal blocks,

- in FIG. 10 shows the installation of a transformer in a drawer, circuit breakers and sockets,

- in FIG. 11 is a side view of a drawer,

- in FIG. 12 shows an installation option in a sliding block of meters and terminal blocks,

- in FIG. 13 is a side view of a drawer unit with counters,

- in FIG. 14 shows a retractable unit with controls, the rest of the equipment, controller, voltage relay and intermediate relays,

- in FIG. 15 shows a side view of a drawer unit with the rest of the equipment,

- in FIG. 16 shows a third embodiment of the complete device,

- in FIG. 17 shows a fourth embodiment of the complete device,

- in FIG. 18 shows a withdrawable function block,

- in FIG. 19 shows the roller bearing of the withdrawable functional unit,

- in FIG. 20 shows the installation diagram of the limiter withdrawable function block,

FIG. 21 shows the output unit.

The low-voltage complete device (Fig. 1 ... 21) is made in the form of a housing 1 in the form of a rectangular parallelepiped (Fig. 1).

Placement of metering and measuring devices, auxiliary devices, street lighting feeder, automatic reserve input devices is made in retractable functional blocks. This allows you to reduce the overall dimensions of the product, increase the utilization rate of busbars and reduce the building surface - there is no need to install an additional cabinet for metering and measurement.

The design of the claimed model (Fig. 1 ... 3) is a cabinet 1 containing a frame 2.

Cabinet 1 is made in the form of a rectangular parallelepiped. The frame 2 is made of profiles 3 L-shaped cross section. Cabinet 1 is made in the form of a rectangular parallelepiped and contains, made of galvanized steel sheets, the upper wall 4, the lower wall 5, the side walls 6 and 7 and the rear wall 8. In the front part there are horizontal facade strips 9 and vertical facade strips 10. Horizontal and vertical facade strips 9 and 10 are made of U-shaped profiles (Fig. 3) and have a protective powder coating. Cabinet 1 consists of two parts: the inlet part 11 and the distribution part 12. The inlet part 11 is made in the upper part of the cabinet 1 and is bounded by the upper wall 4, side walls 6, 7, horizontal facade strips 9 and transverse rails 13. The distribution part 12 is made in the lower part of the cabinet 1 and is limited by the lower wall 5, the rear wall 8 and the side walls 6 and 7. There are no internal partitions between the inlet part 11 and the distribution part 12. This reduces the metal consumption of the low voltage package device.

On one vertical facade strip 10, hinges 14 are made for installing the door 15 (Fig. 4).

The introductory part 11 is divided by vertical panel strips 10 into several compartments in a specific example, into three compartments 16 ... 18 (Fig. 1). Compartments 16 ... 18 are not separated by partitions, but are separated from each other only by vertical facade panels 10 (Figs. 1 and 3). In the compartment 16, an input unit 19 is installed, in the compartment 17 - functional blocks 20, in the compartment 18 - metering unit 21 (Fig. 1).

In the introductory part 11 (Fig. 4) there are also secondary circuits: secondary metering units 22, an automatic reserve input unit 23, auxiliary unit 24 with a street lighting feeder 25. A combination of these is possible.

On the bracket 26 (Fig. 7) is installed introductory circuit breaker 27 (or sectional circuit breaker). The input circuit breaker 27 may be stationary or withdrawable. A load switch can also be used (not shown in FIG. 1 ... 20).

Depending on the depth of the complete device, the metering unit 21 can be retractable. It can have a vertical (Fig. 9) or horizontal (Fig. 11) design. Up to two counters 28 (routers) are mounted in each metering unit 21, FIG. 8 and up to two terminal blocks 29 (Fig. 9). In the block of automatic input of the reserve 23, controls 30 are installed on its facade. Other equipment 31 is mounted in the internal space of this block.

Other equipment 31 (Fig. 14) includes a controller 32, a voltage relay 33, terminal blocks 34, intermediate relays 35. A transformer 36 is installed in the auxiliary unit 24 (Fig. 11), circuit breakers 37, sockets 38 for turning on a power tool or additional lighting (instrument and additional lighting scheme in Fig. 1 ... 20 are not shown).

In the distribution part 12 (Figs. 6 and 7), busbars 39, devices 40 and ammeters 41 are installed. If necessary, a reactive power compensation device 42 is mounted in the distribution part 12. The busbars 39 are used in a horizontal arrangement (Fig. 7) for circuit breakers 37 (Fig. 8) and a vertical arrangement (Fig. 18) for rack fuses 43, switches 44 and disconnectors 45.

In the presence of current transformers 46 (Fig. 21) on the outgoing blocks 47, the wires of the secondary circuits 48 are laid in the box 49, which is closed by panel strips 10 with ammeters 41 (Figs. 4 and 5).

The bottom of the distribution part 12 can be closed by an insulating panel 50 (Fig. 1) to ensure the safety of work.

The design of the low-voltage package device allows you to set the lock, which connects the input functional unit 11 with the transformer cell 51 (Fig. 10). It also allows you to set the door lock 15 associated with the opening switch (not shown).

In FIG. 16 shows a third embodiment of the complete device. In FIG. 17 shows a fourth embodiment of the complete device. In FIG. 18 shows a retractable function block 52 configured to be rolled out. It contains a frame 53, a front panel 54, a side panel 55, to which all the equipment is attached, and a handle 56 for extension. In FIG. 19 shows a roller bearing 57 of a retractable function block 52 made by a withdrawable one. The roller bearing 57 is mounted on an axis 58 in a bracket 59 that is attached to the bottom of the frame 53. In FIG. 20 shows a diagram of the installation of a motion limiter 60 of a retractable (withdrawable) function block 52. Motion limiters 60 are mounted on the lower rails 61.

WORK OF THE COMPLETE DEVICE

When the complete device is operating, voltage is supplied (Fig. 1) to the water part 11 into three compartments 16 ... 18 and specifically to the input unit 11, function blocks 20 and metering unit 21 (Fig. 4). Further, the voltage is distributed to the functional blocks of the distribution part 12 and then to the consumer.

Application of the utility model allowed:

1. To increase the power and currents distributed by NKU to 4000 A.

2. Reduce the dimensions of the device due to the tight installation of equipment. The installation density of the equipment was achieved by the use of rejection of partitions inside it and the implementation of sliding blocks.

3. To reduce the metal consumption of the complete device due to the rejection of partitions inside it and the implementation of the sliding blocks.

4. To provide multifunctionality, including street lighting, work with tools, etc.

5. Ensure the safety of work through the use of locks and an insulating panel at the bottom of the cabinet.

Claims (15)

1. A low-voltage package device containing a cabinet in the form of a rectangular parallelepiped having an upper, lower and side walls fixed to the frame, an input and distribution parts and a door, characterized in that the input part is made in the upper part of the cabinet and is limited by the upper wall, side walls , horizontal facade strips and transverse rails, the distribution part is made in the lower part of the cabinet and is limited by the lower wall, back wall and side walls, the distribution part contains T cells within the cabinet, in which are installed sliding functional blocks, the functional blocks retractable formed as rectangular parallelepipeds and consist of a frame, the side wall and the front panel. 2. The low-voltage package device according to claim 1, characterized in that an automatic reserve input unit is installed in the retractable functional blocks. 3. The low-voltage package device according to claim 1, characterized in that an input or sectional circuit breaker is installed in the sliding functional blocks. 4. The low-voltage complete device according to claim 1, characterized in that an automatic reserve input unit is installed in the retractable functional blocks. 5. The low-voltage package device according to claim 1, characterized in that circuit breakers are installed in the retractable functional units. 6. The low-voltage complete device according to claim 1, characterized in that the retractable functional blocks are retractable. 7. The low-voltage complete device according to claim 6, characterized in that the retractable functional blocks are configured to limit their extension. 8. The low-voltage complete device according to claim 1, characterized in that the functional metering unit has a vertical design. 9. The low-voltage complete device according to claim 1, characterized in that the functional metering unit is horizontal. 10. The low-voltage package device according to claim 1, characterized in that a reactive power compensation device is mounted in the distribution part. 11. The low-voltage complete device according to claim 1, characterized in that the busbars are horizontal. 12. The low-voltage complete device according to claim 1, characterized in that the busbars are vertical. 13. The low-voltage package device according to claim 1, characterized in that the bottom of the distribution part is covered by an insulating panel. 14. The low-voltage package device according to claim 1, characterized in that a door lock is installed on the lower door. 15. The low-voltage complete device according to claim 1, characterized in that it is made with the possibility of operation at a rated current of power circuits up to 4000 A.

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