Drawer type low-voltage switch cabinet with electric energy metering device

Abstract

The utility model discloses a drawer type low-voltage switch cabinet with an electric energy metering device, which comprises a cabinet body, and a first compartment for installing the electric energy metering device is arranged on one side in the cabinet body; the electric energy metering device comprises an inner door and an outer door, the outer door is subjected to lead sealing through a metering lead sealing stud, a first insulating plate is installed on the surface of the inner door, an electric meter support is installed on the first insulating plate, a metering electric meter and a metering junction box are installed on the electric meter support, and a second compartment is arranged in the inner door; the second compartment is lead sealed and comprises an upper end and a lower end, a metering transformer is installed in the upper end, a second insulating plate is fixedly installed at the lower end of the second compartment, a primary female plug-in leading-out end is arranged in the second insulating plate, the primary female plug-in leading-out end is connected with a bus, and the bus penetrates out of the primary female plug-in leading-out end to be connected with a load cable after penetrating through the metering transformer. According to the utility model, the installation of the electric energy metering device can be ensured to accord with specifications, and the manufacturing cost and occupied space are saved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to drawer type low voltage switch cabinet technical field, concretely relates to a drawer type low voltage switch cabinet with electric energy metering device. BACKGROUND

[0002] The existing main control cabinet GCK (GCS, GCL, MNS) drawer type low voltage switch cabinet has few electric energy metering devices, and the drawer type low voltage switch cabinet with electric energy metering device cannot meet the requirements of regulations because the metering transformer and electric meter cannot be separated and cannot be installed with power supply lead seal, and can only be used as user reference metering.

[0003] At the same time, because the front end main control drawer type switch cabinet cannot install electric energy metering device, the electric meter box can only be independently set at the user incoming line end to install electric energy metering device, which makes the overall cost high and needs to occupy a large floor area. UTILITY MODEL CONTENTS

[0004] According to the above deficiencies of prior art, the utility model provides a drawer type low voltage switch cabinet with electric energy metering device, which separates the metering electric meter and metering transformer by setting the inner door and outer door and insulation plate, realizes power supply lead seal at the same time, guarantees that the installation of electric energy metering device meets the specifications, and integrates the electric energy metering device into the main control cabinet - drawer type low voltage switch cabinet of the electric room, which can reduce the use space of electric energy metering device, thereby reducing the floor area, saving the cost and floor space of electric energy metering device.

[0005] The utility model discloses a drawer type low voltage switch cabinet with electric energy metering device, which includes a cabinet body, a first compartment is arranged on one side of the inside of the cabinet body, and an electric energy metering device is installed in the first compartment.

[0006] The electric energy metering device includes an inner door and an outer door, the outer door is lead sealed through metering lead seal studs, a first insulation plate is installed on the surface of the inner door, an electric meter support is installed on the first insulation plate, a metering electric meter and a metering terminal box are installed on the electric meter support, and the inside of the inner door is a second compartment.

[0007] The second compartment is lead sealed and includes upper and lower ends, a metering transformer is installed in the upper end, a second insulation plate is fixedly installed at the lower end, a primary female plug-in component outgoing line end is arranged in the second insulation plate, a busbar is connected to the primary female plug-in component outgoing line end, the busbar is sequentially connected to the metering transformer and the primary female plug-in component outgoing line end, and the busbar is connected to the load cable through the primary female plug-in component outgoing line end.

[0008] Furthermore, the outer door is provided with a first organic glass observation window, and the upper end surface of the second compartment is provided with a second organic glass observation window.

[0009] Further, the metering transformer is fixed through the cross beam.

[0010] Further, the inner door is provided with a hinge switch structure.

[0011] Further, the electric energy metering device is fixed through the inner pin.

[0012] Further, the height of the first compartment is set to be 400-450mm, and the width is set to be 300mm.

[0013] The utility model has the beneficial effects that:

[0014] 1. By changing the internal cabinet structure of the traditional drawer type low-voltage switch cabinet, a compartment for electric energy metering device is arranged in the cabinet, which can solve the problem of electric energy metering, and by arranging the inner door, the outer door and the insulating plate, the electric meter and the metering transformer are separated, and the power supply lead seal is realized, so that the installation of the electric energy metering device in the drawer type low-voltage switch cabinet meets the standard.

[0015] 2. By integrating the electric energy metering device into the drawer type low-voltage switch cabinet, the inspection and maintenance are facilitated, thereby bringing great convenience to power management; at the same time, because the electric energy metering device is integrated into the electric room master control cabinet-drawer type low-voltage switch cabinet, it is not necessary to specially arrange a space such as power distribution room or electric well in the building for installing the electric energy metering device, which can reduce the use space of the electric energy metering device, thereby reducing the floor area, and thus it is beneficial to save the installation cost of the electric energy metering device. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an internal structure schematic view of the drawer type low-voltage switch cabinet with electric energy metering device.

[0017] Figure 2 It is a structure schematic view of the existing common drawer type low-voltage switch cabinet.

[0018] Figure 3 It is Figure 1 It is a structure schematic view after removing the left outer door.

[0019] Figure 4 It is Figure 3 It is a structure schematic view of a first compartment after amplification.

[0020] Figure 5 It is Figure 3 It is a rear view structure schematic view.

[0021] In the figure: cabinet body 1, first compartment 2, inner door 3, first insulation board 4, electric meter support 5, metering electric meter 6, second compartment 7, second organic glass observation window 8, metering mutual inductor 9, second insulation board 10, primary female plug outlet 11, busbar 12, crossbeam 13, metering terminal box 14, circuit breaker 15. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described in combination with specific embodiments.

[0023] In the description of the utility model, it should be pointed out that the orientation or position relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like is the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the utility model, it should be pointed out that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] As Figures 1-5 shown, the utility model discloses a drawer type low-voltage switch cabinet with electric energy metering device, including cabinet body 1, one side of the inside of cabinet body 1 is equipped with first compartment 2, electric energy metering device is installed in first compartment 2;

[0026] Electric energy metering device includes inner door 3 and outer door, the outer door is sealed by metering lead seal stud, the surface of inner door 3 is provided with first insulation board 4, electric meter support 5 is installed on first insulation board 4, metering electric meter 6 and metering terminal box 14 are installed on electric meter support 5, the inside of inner door 3 is second compartment 7;

[0027] The second compartment 7 is sealed by lead, and comprises upper and lower ends, the upper end is internally provided with a metering transformer 9, and the lower end is provided with a second insulating plate 10 fixedly installed, the second insulating plate 10 is provided with a primary female plug outlet 11, the primary female plug outlet is connected with a bus 12, the bus 12 is sequentially connected with the metering transformer 9 and the primary female plug outlet 11, and the bus 12 is connected with a load cable through the primary female plug outlet 11.

[0028] Specifically, the electric energy metering device is a kind of metering instrument for measuring and recording power generation, power supply, plant power, line loss and user power consumption, generally comprising an electric energy meter (i.e. metering electric meter 6), metering transformer (including voltage transformer and current transformer) (i.e. metering transformer 9) and secondary connection line conductor.Among them, the meter of the electric energy meter is used for calculating the cumulative value of electric energy, and is the indicating part thereof;Auxiliary components usually include base, base, cover, end button box and nameplate.

[0029] The basic working principle of the electric energy meter in the electric energy metering device is that the voltage element and the current element of the driving element convert alternating voltage and current into alternating magnetic flux passing through the rotating disc, the magnetic flux interacts with the current induced in the rotating disc to generate a driving torque, so that the rotating disc rotates.The rotation speed of the rotating disc is proportional to the power of the measured circuit.The number of rotations of the rotating disc is transmitted to the meter, and accumulated into an electric energy cumulative value.

[0030] Among them, in the utility model, the electric energy metering device can be fixedly installed in the drawer type low-voltage switch cabinet through internal sales fixed connection or welding and the like.Both the first insulating plate 4 and the second insulating plate 10 can be fixedly installed through bolt connection.The electric meter support 5 can be installed on the first insulating plate 4 through the cooperation connection between the positioning pin and the positioning hole drilled on the first insulating plate 4.The metering electric meter 6 and the metering terminal box 14 can be fixedly installed on the electric meter support 5 through bolt connection, positioning pin and positioning hole cooperation, buckle or clamp, adhesive and the like.

[0031] Specifically, Figure 2 As shown in the figure, most of the internal structure of the existing drawer type low-voltage switch cabinet does not install the electric energy metering device. Figure 1 That is, the utility model discloses a drawer type low-voltage switch cabinet with an electric energy metering device, which is internally provided with a first compartment 2 on one side of the cabinet body 1 for installing the electric energy metering device. Among them, the height of the first compartment 2 is set to be 400-450mm, and the width is set to be 300mm, by selecting this height range and width value, the smooth installation of the electric energy metering device can be ensured, and the whole cabinet 1 structure can be more compact.

[0032] The outer door (not shown) of the first compartment 2 is the same as the outer shell of the existing household electric meter box, can be rotated to open, and is sealed by a meter lead seal stud, which are all conventional technologies. The outer door can be provided with a first organic glass observation window, which is set at a height consistent with the height of the meter value display screen, for directly observing the meter 6. At the same time, the inner door 3, i.e. the upper end surface of the second compartment 7, can also be provided with a second organic glass observation window 8 for observing the metering transformer 9.

[0033] In addition, the inner door 3 is provided with a loose-leaf switch structure to achieve flexible opening and closing.

[0034] The main components of the electric energy metering device are the meter 6 and the metering transformer 9. The meter 6 is arranged between the outer door and the inner door 3, and the metering transformer 9 is arranged in the second compartment 7 inside the inner door 3, so that the meter 6 and the metering transformer 9 can be separated, meeting the requirements of relevant installation regulations or procedures, thereby ensuring that the installation of the electric energy metering device in the drawer-type low-voltage switch cabinet meets the specifications.

[0035] Specifically, the first insulating plate 4 is installed on the surface of the inner door 3, and the meter support 5 is installed on the first insulating plate 4, so that the meter 6 and the metering terminal box 14 can be installed through the meter support 5. The metering transformer 9 can be fixed in the second compartment 7 inside the inner door 3 through the cross beam 13.

[0036] The main function of the metering transformer 9 is to measure and meter the current. In order to ensure the accuracy of measurement, it needs to be effectively connected with the load cable. The busbar 12, as a high-conductivity connecting device, can provide a stable current transmission path, so as to ensure that the metering transformer 9 can accurately measure the current in the load cable. Specifically, as shown in Figure 5 The busbar 12 is connected with the metering transformer 9, and then connected with the outgoing line end 11 of the primary busbar plug-in device installed on the second insulating plate 10 at the lower end of the second compartment 7, and then connected with the load cable through the outgoing line end 11 of the primary busbar plug-in device, thereby realizing the connection between the metering transformer 9 and the load cable. In addition, by dividing the second compartment 7 into upper and lower ends, the metering transformer 9 and the outgoing line end 11 of the primary busbar plug-in device are arranged respectively, so that the insulation treatment can be facilitated.

[0037] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A drawer-type low voltage switchgear with electric energy metering device, characterized in that, Including cabinet (1), one side inside the cabinet (1) is equipped with first compartment (2), the first compartment (2) is installed with electric energy metering device; The electric energy metering device includes inner door (3) and outer door, the outer door is sealed by metering lead seal stud, the surface of the inner door (3) is installed with first insulating plate (4), the first insulating plate (4) is installed with electric meter support (5), the electric meter support (5) is installed with metering electric meter (6) and metering terminal box (14), the inside of the inner door (3) is second compartment (7); The second compartment (7) is sealed, and includes upper and lower ends, the upper end is installed with metering mutual inductor (9) inside, the lower end is provided with second insulating plate (10) fixedly installed, the second insulating plate (10) is provided with primary female plug-in outlet (11), the primary female plug-in outlet (11) is connected with busbar (12), the busbar (12) is connected with the metering mutual inductor (9) and the primary female plug-in outlet (11) in turn, the busbar (12) is connected with load cable through the primary female plug-in outlet (11).

2. The drawer-type low voltage switchgear with electric energy metering device according to claim 1, characterized in that, The outer door is provided with first organic glass observation window, the upper end surface of the second compartment (7) is installed with second organic glass observation window (8).

3. The drawer-type low voltage switchgear with electric energy metering device according to claim 1, characterized in that, The metering mutual inductor (9) is fixed through crossbeam.

4. The drawer-type low voltage switchgear with electric energy metering device according to claim 1, characterized in that, The inner door (3) is provided with loose-leaf switch structure.

5. The drawer-type low voltage switchgear with electric energy metering device according to claim 1, characterized in that, The electric energy metering device is fixed through inner pin.

6. The drawer-type low voltage switchgear with electric energy metering device according to claim 1, characterized in that, The height of the first compartment (2) is set to be 400-450mm, and the width is set to be 300mm.

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