CN201797251U - 10kV urban power distribution network high and low pole overhead equipment - Google Patents

Abstract

The utility model relates to a 10kV urban power distribution network high-low rod type overhead device, which comprises a 10kV oil-immersed distribution transformer, a low-voltage distribution box, a high support rod and a low support rod. Two horizontal support steel channels are fixedly connected between the lower portion of the high support rod and the top of the low support rod, the distribution transformer is arranged on the two horizontal support steel channels, and a low-voltage casing pipe of the 10kV oil-immersed distribution transformer is connected with the low-voltage distribution box by an electric cable. The overhead device is modified in that the low-voltage casing pipe of the transformer is positioned on the lateral surface, and the low-voltage distribution box is positioned at the bottoms of the two horizontal support steel channels or on the ground. The 10kV urban power distribution network high-low rod type overhead device has the advantage of capabilities of not only improving power supply reliability of a distribution network system, but also realizing easy equipment installation and wiring for installation personnel, reducing work load of the installation personnel, simultaneously beautifying urban environment, saving investment in rods and frames, reducing floor area of distribution network equipment, saving urban land resources, realizing expansibility and reserving space for further development.

Description

10kV urban power distribution network high and low pole overhead equipment

technical field

The utility model belongs to power supply and distribution facilities, in particular to overhead equipment for a 10kV urban power distribution network. the

Background technique

At present, there are many problems in the overhead equipment and layout of the 10kV urban power distribution network due to historical reasons: the urban power supply and distribution facilities are outdated, and the overhead equipment is seriously aging; The installation method, pole erection work is difficult, lead wires are complicated, occupy a large space, and its high-voltage and low-voltage side inlet and outlet lines are densely packed like spider webs, which seriously affects the overall appearance of a city; at the same time, the high-voltage side surge arrester of the distribution transformer is separated from the switch on the pole. Installation, resulting in inconvenient installation and too many nodes, prone to overheating, increases the possibility of equipment insulation damage, thereby reducing the power supply reliability of the distribution network. the

Contents of the invention

In order to overcome the deficiencies of the existing 10kV urban power distribution network overhead equipment and facilities, such as outdated facilities, serious aging, unreasonable layout, aesthetic impact and poor power supply reliability, the utility model provides a 10kV urban power distribution network single pole overhead equipment. the

The specific technical improvement plan is as follows:

10kV urban power distribution network high and low pole-type overhead equipment, including 10kV oil-immersed distribution transformer, low-voltage distribution box, a high support pole and a low support pole, and the fixed connection between the lower part of the high support pole and the top of the low support pole There are two horizontal supporting channel steels, the transformer is set on the two horizontal supporting channel steels, and the low-voltage bushing of the 10kV oil-immersed distribution transformer is connected to the low-voltage distribution box through cables;

The low-voltage bushing of the 10kV oil-immersed distribution transformer is located on the side,

The low-voltage distribution box is located at the bottom of two horizontal support channel steels or on the ground. the

This utility model is mainly based on the side outlet structure of the low-voltage bushing of the 10kV oil-immersed distribution transformer, optimizes the wiring and installation layout of the overhead equipment of the 10kV urban power distribution network, and designs two sets of high and low poles in total. Type overhead equipment scheme; its beneficial technical effect is that it not only improves the power supply reliability of the distribution network system, but also makes it easy for installers to install equipment and wiring, reduce the workload of installers, and also beautify the urban environment and save poles Investment, reducing the footprint of distribution network equipment, saving the city's land resources, and has scalability, retaining further development space. the

Description of drawings

Figure 1 is a schematic diagram of the side outlet type structure of the low-voltage bushing of a 10kV oil-immersed distribution transformer,

Figure 2 is a top view of Figure 1,

Figure 3 is a schematic diagram of the low-voltage distribution box located in the middle of the transformer,

Figure 4 is a side view of Figure 3,

Figure 5 is a schematic diagram of the floor layout of the low-voltage distribution box,

FIG. 6 is a side view of FIG. 5 . the

Detailed ways

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

Example 1:

Referring to Figure 1, Figure 2, Figure 3 and Figure 4, the 10kV urban power distribution network high and low pole overhead equipment includes 10kV oil-immersed distribution transformer 1, low-voltage distribution box 8, a high support pole 9 and a low support pole Rod 12; the high-voltage incoming line 4 adopts steel-cored aluminum conductors, and the high-voltage incoming line 4 is connected to the high-voltage bushing 2 on the top of the distribution transformer 1; Three crosspieces 5 are used to fix the high-voltage incoming line 4, and can be used to install the lightning arrester 6 and the drop insurance 7. The drop insurance 7 is installed about 5-6m above the ground to facilitate the operation of ground personnel. the

Two horizontal support channel steels 10 are fixedly connected between the lower part of the high support bar 9 and the top of the low support bar 12. The distribution transformer 1 is mounted on the two horizontal support channel steels 10. The low voltage of the 10kV oil-immersed distribution transformer 1 The bushing 3 is connected to the low-voltage distribution box 8 through the cable 11, and the low-voltage bushing 3 of the distribution transformer 1 is located on the side; the low-voltage distribution box 8 is suspended on the horizontal support channel steel 10 below the distribution transformer 1, and is located The middle position of support pole (telephone pole) 9 and low support pole 12. The low-voltage bushing 3 of the distribution transformer 1 adopts a side outlet, and is connected with the low-voltage distribution box 8 by a cable 11. The cable 11 is connected from the top of the low-voltage distribution box 8, and is led out from the bottom of the low-voltage distribution box 8 and penetrates the cable. Lead down into the ground after pipe 13. The bottom of distribution transformer 1 is 2.5m from the ground. Internal layout of the low-voltage distribution box 8: one or two air circuit breakers, one or two sets of switch blades, one or two cable outlets, low-voltage protection and TTU (remote meter reading terminal) are installed inside. the

Example 2:

Referring to FIG. 5 and FIG. 6 , the low-voltage distribution box 8 is located on the ground on the right side of the high support pole 9 . The low-voltage bushing 3 of the distribution transformer 1 adopts a side outlet, and is connected with the low-voltage distribution box 8 by a cable 11. The cable 11 is connected to the top of the low-voltage distribution box 8 along the pole wall of the high support pole 9, and is connected from the low-voltage distribution box 8. Draw back into the ground below the case 8. The bottom of distribution transformer 1 is 2.5m from the ground. the

Others are with embodiment 1. the

Claims (1)

1. 10kV urban power distribution network high and low pole overhead equipment, including 10kV oil-immersed distribution transformer, low-voltage distribution box, a high support pole and a low support pole, fixed between the lower part of the high support pole and the top of the low support pole It is connected with two horizontal support channel steels, the transformer is set on the two horizontal support channel steels, and the low-voltage bushing of the 10kV oil-immersed distribution transformer is connected to the low-voltage distribution box through cables, which are characterized in that: The low-voltage bushing of the 10kV oil-immersed distribution transformer is located on the side, The low-voltage distribution box is located at the bottom of two horizontal support channel steels or on the ground.

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