CN201113266Y - Distribution rack low-voltage switch box - Google Patents

Abstract

A low-voltage switch box of a power distribution rack belongs to low-voltage power distribution equipment, and mainly solves the problem of complicated installation of equipment on the low-voltage side of the original power distribution rack. It is characterized in that the box body made of insulating material is composed of an upper cover, left and right side panels, a rear side panel, a box door, a lower side panel and a bottom panel; the inner cavity of the box is divided into a switch room and a metering room; There are two cable inlet and outlet holes, three cable inlet and outlet holes, knife fuse switch, low-voltage arrester and three-phase current transformer; the metering room is equipped with GPRS terminal, meter, meter terminal box and temperature sensor, switch room, The metering chamber is provided with an upper concealed ventilation hole and a lower concealed ventilation hole; the left and right doors of the box are separated, and the right and left doors are provided with matching door locks with rainproof covers. It integrates and fixes the relevant electrical components in the box, thereby improving the reliability and safety of the equipment and prolonging the service life of the equipment.

Description

Distribution rack low-voltage switch box

technical field

The utility model relates to a low-voltage power distribution equipment, in particular to a low-voltage switch box of a power distribution stand.

Background technique

Before the application date, the distribution rack used (HGW9 type) low-voltage knife switch. The low-voltage knife switch has no insulation protection, and the live parts are all exposed, which is prone to short-circuit accidents. The crimping bolts and the fixed bottom plate are easy to rust. The head compression spring is easy to age, resulting in poor contact and heat generation, and the supporting insulator of the low-voltage knife switch and the base fixture are wooden structures, which are easy to age, and insulator breakage accidents often occur, and it is difficult to operate. It is easy to damage the operator and the equipment, and the equipment has a short service life. It needs to be updated every two to three years. The workload is heavy and the maintenance cost is high.

Utility model content

The purpose of this utility model is to provide a low-voltage switch box for a power distribution stand, which integrates and fixes related electrical components in the box, thereby improving the reliability and safety of the equipment and prolonging the service life of the equipment.

The technical solution adopted by the utility model to solve the technical problem is: the low-voltage switch box of the distribution platform, which is characterized in that the box body made of insulating material has an upper cover and a middle left and right side plates connected to each other. The rear side panel and the box door, the lower part is the lower side panel and the bottom panel; two left and right installation fixing plates are fixed on the rear side panel and the left and right side panels; the inner cavity of the box is divided into a switch room and a metering room by a vertical middle partition There are two chambers in the switch chamber; there are three cable inlet and threading holes on the upper rear side panel of the switch room, and the equipment arranged on the lower rear side panel includes a knife fuse switch connected to compatible terminals, a three-phase low-voltage arrester and a three-phase current Transformer, there are three cable outlet threading holes on the side bottom plate; GPRS terminal, meter, and meter terminal box are arranged on the rear side plate of the metering chamber from top to bottom, and a temperature sensor is also fixedly installed in the chamber. The upper and lower parts of the switch room or metering room are respectively equipped with upper and lower hidden ventilation holes; the left and right doors of the box are separated, and the right door is equipped with a GPRS terminal and a meter respectively. Observation window and meter observation window; right door and left door are equipped with matching door locks with rain cover.

In the low-voltage switch box of the distribution platform, a knife fuse switch, a low-voltage arrester, a current transformer, a GPRS terminal, a meter and a meter terminal box are connected to the rear side plate through adjustable guide rails.

In the low-voltage switch box of the distribution platform, the installation and fixing plate is punched from a whole plate, and the outer fixing plate with the outer fixing hole is perpendicular to the side fixing plate with the side fixing hole, and is aligned with the belt The rear side fixed plate with the rear side fixed hole is parallel, and the size of the side fixed plate is located in the hollow frame of the rear side fixed plate, and is perpendicular to the rear side fixed plate.

The beneficial effect of the utility model is that it integrates and fixes relevant electrical components in the box, thereby improving the reliability and safety of equipment work and prolonging the service life of the equipment. specifically is:

1. Since the knife fuse switch is set in the box, it is convenient and light to pull and close, and there is no exposed live part.

2. Since the low-voltage arrester is installed in the box, it can effectively protect the equipment from being damaged by lightning.

3. Since the temperature sensor is installed in the box, there are hidden vents in the box, which can dissipate heat in time. If the switch is overheated, it can send a signal to the operation management department for timely maintenance.

4. Realized the integrated installation of low-voltage switches, meters, and terminals on the power distribution rack, and solved the complex problem of installing low-voltage side equipment on the original power distribution rack. It is beautiful and practical. The box is equipped with a transparent observation window, which is convenient for observing the meter and GPRS terminal.

5. The electrical connecting wires of each component in the box are all connected in place, and no additional wiring is required on site.

6. The box structure is simple, corrosion-resistant, good insulation performance, easy to assemble.

Description of drawings:

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Fig. 1 is the front view of the utility model;

Fig. 2 is the right view of Fig. 1;

Fig. 3 is a schematic diagram of electrical layout in the cabinet after the cabinet door is removed in the utility model;

Figure 4 is a front view of the mounting plate;

Fig. 5 is the right view of Fig. 4;

FIG. 6 is a top view of FIG. 4 .

In the figure: 1. upper cover, 2. left door, 3. installation fixing plate, 31 outer fixing plate, 311 outer fixing hole, 32. rear side fixing plate, 321 rear side fixing hole, 33 side fixing plate, 331 side fixing Hole, 4. Door lock, 5. Cable outlet threading hole, 6. Base plate, 7. Lower side plate, 8. Lower concealed ventilation hole, 9. Meter observation window, 10. GPRS terminal observation window, 11. Right door , 12. Concealed upper ventilation hole, 13. Cable inlet threading hole, 14. Right side panel, 15. Measuring room, 16. Switching room, 17. Compatible terminal block, 18. Knife fuse switch, 19. Middle partition Board, 20. Low-voltage arrester, 21. Three-phase current transformer, 22. Temperature sensor, 23. GPRS terminal, 24. Mark, 25. Mark terminal box.

Detailed ways:

Figure 1, Figure 2, Figure 3. The distribution frame low-voltage switch box is made of insulating material, which has corrosion resistance, good insulation performance and high protection level. The box body is a plate structure, which can be easily assembled. The electrical connecting wires of each component in the box are all connected in place, and there is no need for additional wiring on site.

The upper part of the box body is a ridge-shaped loam cake 1; the middle part is the connected left side plate, right side plate 14, rear side plate and box door;

The inner cavity of the box is divided into two chambers, a switch chamber 16 and a metering chamber 15, by a vertical intermediate partition 19. There are three horizontally arranged cable inlet and threading holes 13 above the rear side plate in the left switch room 16, and the equipment arranged on the rear side plate below it is also: a knife fuse switch 18 connected to the compatibility terminal 17, and the middle part is on the left. The side is a low-voltage arrester 20, and the lower part is a three-phase current transformer 21; the side bottom plate 6 is provided with three cable outlet threading holes 5. The knife fuse switch is convenient and quick to pull and close, and there is no exposed live part; a three-phase low-voltage arrester 20 is provided to effectively protect equipment from being damaged by lightning. A rubber sealing ring is installed in the cable inlet threading hole 13 and the cable outlet threading hole 5 . A GPRS terminal 23, an electric meter 24, and an automatic meter reading terminal and a terminal box 25 are installed on the bottom of the right metering chamber 15 from top to bottom on the rear side plate. A temperature sensor 22 is fixedly arranged on the upper right and left side in the chamber, the temperature sensor is set, and can send a signal to the operation management department as the switch is overheated. The upper and lower parts of the metering chamber are respectively provided with an upper concealed ventilation hole 12 and a lower concealed ventilation hole 8 . The specific positions of the upper hidden ventilation hole 12 and the lower hidden ventilation hole 8 can be adjusted as required.

The left and right sides of the box door are oppositely opened, and the door opening angle is designed to be 180 degrees. Corresponding GPRS terminal and table mark are respectively provided with GPRS terminal observation window 10 and table mark observation window 9 on the right door 11, convenient to the observation of meter and GPRS terminal. Right door 11 and left door 2 outsides are provided with the door lock 4 of the rainproof cover that cooperates, adopt three-point positioning door lock, and lock core adds protective cover, safe and reliable.

In the low-voltage switch box of the distribution platform, the GPRS terminal 23, the indicator 24 and the indicator terminal box 25 are connected to the rear side plate through adjustable guide rails. for easy adjustment.

As shown in Figure 4, Figure 5, and Figure 6. The fixing plate 3 is installed for fixing the switch box. Install the two left and right fixing plates, which are respectively fixed on the rear side plate and the left and right side plates. The installation and fixing plate 3 is stamped from a whole plate, the outer fixing plate 31 with the outer fixing hole 311 is perpendicular to the side fixing plate 33 with the side fixing hole 331, and is perpendicular to the side fixing plate 33 with the rear fixing hole 321. The rear side fixed plate 32 is parallel, and the size of the side fixed plate is located in the hollow frame of the rear side fixed plate 32 , and is perpendicular to the rear side fixed plate 32 .

The utility model realizes the integrated installation of the low-voltage switch, the meter and the terminal of the power distribution rack, and solves the difficult problem of complex installation of the equipment on the low-voltage side of the original power distribution rack, and is beautiful and practical.

Claims (3)

1, Schaltpult Stand Low Voltage Switch Cabinet is characterized in that, the casing that insulating material is manufactured, and its top is loam cake, the left and right side plate of middle part for linking to each other, back side panel and chamber door, the bottom is lower side panel and base plate; Each two are fixed on back side panel and the left and right side plate about mounting plate; Cabinets cavity is divided into switch gear room and two chambers of measuring room by vertical central dividing plate; The top back side panel is provided with three long cable section of ingoing line through wires holes in the switch gear room, the equipment of arranging on its below back side panel has switch with knifeshaped fuse, three-phase low voltage surge arrester and the threephase current transformer that connects compatible binding post, and this side base plate is provided with three cable outlet through wires holes; Be provided with GPRS terminal, table meter, table meter binding post box in the measuring room on the back side panel from top to bottom, a temperature sensor also is fixedly installed in this chamber, and the upper and lower of switch gear room or measuring room correspondence respectively is provided with and secretly puts ventilation hole and secretly put ventilation hole down; Two fans are split about described chamber door, and right door goes up corresponding GPRS terminal and the table score is not provided with GPRS terminal observation window and table meter observation window; The right door and the left-hand door outside are provided with the door lock of the band rain cover that matches.

2, Schaltpult Stand Low Voltage Switch Cabinet according to claim 1 is characterized in that, described switch with knifeshaped fuse, low voltage surge arrester, current transformer, GPRS terminal, table meter and table meter binding post box are connected on the back side panel by the scalable guide rail.

3, Schaltpult Stand Low Voltage Switch Cabinet according to claim 1, it is characterized in that, described mounting plate is stamped to form by a whole sheet material, the external fixation plate that has the external fixation hole is vertical with the side fixed head that has the side fixing hole, and it is parallel with the rear side fixed head that has the rear side fixing hole, side fixed head size is positioned at rear side fixed head hollow frame, and perpendicular to the rear side fixed head.

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