High-voltage cable installation improvement structure suitable for box-type substation

Abstract

The utility model discloses a high-voltage cable installation improved structure suitable for a box-type transformer station, which comprises a bottom plate, the top of the bottom plate is provided with a closed bin, the inner wall of the closed bin is provided with a partition wall, the side of the partition wall is connected with a cable in a penetrating manner, the top of the bottom plate is provided with an arrangement piece positioned on the side of the partition wall, and the output end of the cable is fixedly connected with a terminal head. A fixing piece is arranged at the end of the arranging piece and comprises a first inclined supporting rod and a second inclined supporting rod, and limiting parts are arranged on the opposite sides of the first inclined supporting rod and the second inclined supporting rod. According to the utility model, the bottom of the transformer placement space of the box-type substation is provided with the cable which is used for placing the cable which penetrates through the partition wall from the output end of the high-voltage feeder cabinet, and the terminal head connected with the output end of the cable is fixed on the opposite sides of the first inclined support rod and the second inclined support rod by the limiting part in the arrangement piece, so that the fixation of the terminal head is realized; according to the improved cable installation structure, the situation that the cables are disordered in position and later line maintenance is affected due to the fact that the cables do not have limiting arrangement measures after penetrating through the partition wall is avoided.

Description

Technical Field

[0001] The utility model relates to the field of box-type transformer substation equipment, in particular to an improved structure suitable for high-voltage cable installation in box-type transformer substations. Background Art

[0002] A box-type substation is a factory-prefabricated compact distribution equipment that integrates high-voltage switchgear, distribution transformers and low-voltage distribution devices. In existing box-type substations, cables are provided at the output end of the high-voltage feeder cabinet. The cables pass through the partition wall and enter the transformer compartment. The terminal head at the cable output end is connected to the high-voltage pile head of the transformer to perform voltage reduction. After the cable passes through the partition wall, there is no storage and sorting limit, and the terminal head is directly connected, resulting in cluttered cables in the transformer compartment, affecting the later maintenance of the line. In order to solve this problem, a new type of improved structure for high-voltage cable installation suitable for box-type substations is needed. Utility Model Content

[0003] The purpose of the utility model is to provide an improved structure for high-voltage cable installation in a box-type substation to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an improved structure for high-voltage cable installation in a box-type substation, comprising a base plate, a closed bin is arranged on the top of the base plate, a partition wall for isolating a transformer is arranged on the inner wall of the closed bin, cables are inserted and connected to the sides of the partition wall, a tidying piece for placing cables is arranged on the top of the base plate and on the side of the partition wall, a terminal head for connecting to the high-voltage pile head of the transformer is fixedly connected to the output end of the cable, a fixing piece for fixing the position of the terminal head is arranged on the end of the tidying piece, and the fixing piece comprises a first diagonal brace and a second diagonal brace, and a limiting portion is arranged on the opposite sides of the first diagonal brace and the second diagonal brace.

[0005] Preferably, the organizing piece comprises an L-shaped wire trough for placing cables, a sealing trough plate is inserted and connected to the top of the L-shaped wire trough, and the L-shaped wire trough is fixedly connected to the top of the bottom plate.

[0006] Preferably, the limiting portion comprises a connecting rod, a side of the connecting rod is fixedly connected to a limiting block, and a fixing hole for inserting the terminal head is provided at the connection between the limiting block and the connecting rod.

[0007] Preferably, a connecting block is fixedly connected to the top of the first diagonal brace rod and the top of the second diagonal brace rod, and the connecting block is arranged on the top inner wall of the closed bin.

[0008] Preferably, the bottoms of the first diagonal brace rod and the second diagonal brace rod are fixedly connected to the top of the base plate.

[0009] Preferably, a through hole for inserting cables is opened on the side of the partition wall.

[0010] Technical effects and advantages of the utility model:

[0011] The utility model provides a device for placing cables that pass through the partition wall from the output end of the high-voltage feeder cabinet at the bottom of the transformer placement space of the box-type substation, and uses a limiting portion in the organizing member to fix the terminal head connected to the output end of the cable on the opposite side of the first diagonal support rod and the second diagonal support rod, thereby achieving the fixation of the terminal head. This improved cable installation structure avoids the situation where there is no unlimited arrangement measures after the cables pass through the partition wall, resulting in a messy cable position and affecting the maintenance of the later line. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the wiring schematic diagram of the utility model.

[0013] Figure 2 It is a cross-sectional view of the box-type substation of the utility model.

[0014] Figure 3 For this utility model Figure 2 A magnified view of the structure at center.

[0015] Figure 4 It is a cross-sectional view of the fixing member of the utility model.

[0016] Figure 5 It is a structural schematic diagram of the limiting part of the utility model.

[0017] In the figure: 1, bottom plate; 2, closed compartment; 201, partition wall; 2011, through hole; 3, L-shaped wire trough; 301, sealing trough plate; 4, cable; 401, terminal head; 5, first diagonal brace; 6, second diagonal brace; 7, connecting block; 8, connecting rod; 801, limit block; 9, fixing hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The utility model provides Figure 1-5 The improved structure for high-voltage cable installation in a box-type substation shown in the figure comprises a bottom plate 1, a closed compartment 2 is arranged on the top of the bottom plate 1, a partition wall 201 for isolating the transformer is arranged on the inner wall of the closed compartment 2, and cables 4 are inserted and connected to the sides of the partition wall 201;

[0020] It should be noted that the bottom plate 1 and the closed chamber 2 are both made of DMC insulating material plates, the connection between the bottom plate 1 and the closed chamber 2 is fastened with bolts, the partition wall 201 is made of galvanized steel plate, and a circular through hole 2011 for the cable 4 to pass through is opened on the side of the partition wall 201. The box-type substation starts by receiving electric energy from the high-voltage incoming line cabinet, and after the transformation ratio of the high-voltage PT cabinet and the measurement of the high-voltage metering cabinet, it passes through the high-voltage feeder cabinet to the transformer for voltage reduction processing. After the voltage reduction is completed, it enters the low-voltage incoming line cabinet, and the low-voltage incoming line cabinet is responsible for further distributing the stepped-down electric energy to the low-voltage feeder cabinet, and finally supplies it to users. During the whole process, the capacitor compensation cabinet provides necessary reactive power compensation.

[0021] A storage piece for placing cables 4 is provided on the top of the bottom plate 1 and on the side of the partition wall 201;

[0022] Specifically, the organizing piece includes an L-shaped wire trough 3 for placing the cable 4, the top of the L-shaped wire trough 3 is interspersed with a sealing slot plate 301, and the L-shaped wire trough 3 is fixedly connected to the top of the bottom plate 1;

[0023] It should be noted that the L-shaped wire trough 3 is made of aluminum alloy, and is fixed to the bottom plate 1 by welding. The sealing slot plate 301 is made of aluminum alloy, which is used to prevent dust from entering the L-shaped wire trough 3 and prevent the cable 4 from escaping from the L-shaped wire trough 3. The output end of the cable 4 is fixedly connected with a terminal head 401 for connecting to the high-voltage pile head of the transformer, and the terminal head 401 is located on the outside of the L-shaped wire trough 3.

[0024] The end of the finishing piece is provided with a fixing piece for fixing the position of the terminal head 401;

[0025] Specifically, the fixing member includes a first diagonal brace rod 5 and a second diagonal brace rod 6, and a limiting portion is provided on opposite sides of the first diagonal brace rod 5 and the second diagonal brace rod 6;

[0026] It should be noted that the bottom of the first diagonal brace rod 5 and the second diagonal brace rod 6 are fixedly connected to the top of the bottom plate 1 by welding, and the top of the first diagonal brace rod 5 and the second diagonal brace rod 6 are fixedly connected with a connecting block 7, and the connecting block 7 is arranged on the top inner wall of the closed bin 2, and the connecting block 7 is welded to the closed bin 2, and the first diagonal brace rod 5 and the second diagonal brace rod 6 are welded and fixed by the connecting block 7, and the first diagonal brace rod 5 and the second diagonal brace rod 6 are arranged on the side of the sealing groove plate 301 and the opposite side of the inner wall of the closed bin 2;

[0027] Specifically, the limiting part includes a connecting rod 8, a side of the connecting rod 8 is fixedly connected to a limiting block 801, and a fixing hole 9 for inserting the terminal head 401 is provided at the connection between the limiting block 801 and the connecting rod 8;

[0028] It should be noted that the two ends of the connecting rod 8 are welded and fixed to the sides of the first diagonal brace rod 5 and the second diagonal brace rod 6, the limit block 801 is welded and fixed to the connecting rod 8, and the fixing hole 9 is used to squeeze and fix the terminal head 401;

[0029] During actual use, the connecting rod 8 and the limit block 801 in the organizing part are used to fix the terminal head 401 connected to the output end of the cable 4 on the opposite sides of the first diagonal support rod 5 and the second diagonal support rod 6, so as to achieve the fixation of the terminal head 401. This improved installation structure of the cable 4 avoids the situation where the cable 4 directly passes through the partition wall 201 without unlimited organizing measures, resulting in a messy placement of the cable 4 and affecting the maintenance of the later lines.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An improved structure for high-voltage cable installation in a box-type substation, comprising a bottom plate (1), a closed compartment (2) being arranged on the top of the bottom plate (1), characterized in that: The inner wall of the closed chamber (2) is provided with a partition wall (201) for isolating the transformer, the side of the partition wall (201) is connected with a cable (4) through it, the top of the bottom plate (1) and located on the side of the partition wall (201) is provided with a storage piece for placing the cable (4), the output end of the cable (4) is fixedly connected with a terminal head (401) for connecting to a high-voltage pile head of the transformer, and the end of the storage piece is provided with a fixing piece for fixing the position of the terminal head (401), the fixing piece comprises a first diagonal brace rod (5) and a second diagonal brace rod (6), and a limiting portion is provided on the opposite sides of the first diagonal brace rod (5) and the second diagonal brace rod (6).

2. According to claim 1, an improved structure for high-voltage cable installation in a box-type substation is characterized in that: The organizing piece comprises an L-shaped wire trough (3) for placing cables (4), a sealing trough plate (301) is inserted and connected at the top of the L-shaped wire trough (3), and the L-shaped wire trough (3) is fixedly connected to the top of the bottom plate (1).

3. The improved structure for high-voltage cable installation in a box-type substation according to claim 2 is characterized in that: The limiting portion comprises a connecting rod (8), the side of the connecting rod (8) is fixedly connected to a limiting block (801), and a fixing hole (9) for inserting the terminal head (401) is provided at the connection between the limiting block (801) and the connecting rod (8).

4. The improved structure for high-voltage cable installation in a box-type substation according to claim 3 is characterized in that: A connecting block (7) is fixedly connected to the top of the first diagonal brace rod (5) and the top of the second diagonal brace rod (6), and the connecting block (7) is arranged on the top inner wall of the closed bin (2).

5. The improved structure for high-voltage cable installation in a box-type substation according to claim 4 is characterized in that: The bottoms of the first diagonal brace (5) and the second diagonal brace (6) are fixedly connected to the top of the base plate (1).

6. The improved structure for high-voltage cable installation in a box-type substation according to claim 3 is characterized in that: A through hole (2011) for inserting the cable (4) is provided on the side of the partition wall (201).

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