35kv modular emergency power transformation and distribution system

Abstract

The utility model provides a 35kv modular emergency power transformation and distribution system, which belongs to the technical field of transformer substations and comprises a 35kV switching station module, a transformer module, a 10kV switching station module and a communication protection module, the 35kV switching station module and the 10kV switching station module are integrally mounted in a main cabin respectively, and the transformer module and the 10kV switching station module are integrally mounted in the main cabin respectively. The main cabin body is divided into two sub cabin bodies, the two sub cabin bodies are respectively a 35kV cabin body and a 10kV cabin body, the 35kV cabin body and the 10kV cabin body are sequentially arranged next to each other, outer frames of the 35kV cabin body and the 10kV cabin body are fixedly connected through fastening bolts, the 35kV cabin body and the 10kV cabin body are assembled and then combined into a transformer substation, a 35kV switching station module and a transformer module are integrated in the 35kV cabin body, and the transformer module is connected with the 35kV cabin body and the 10kV cabin body. The 10kV cabin body is integrated with a 10kV switching station module and a communication protection module.

Description

Technical Field

[0001] The utility model belongs to the technical field of substations, and specifically relates to a 35kV modular emergency power distribution system. Background Art

[0002] There are many technical problems to be solved urgently in the existing 35kV lines and power distribution systems. On the one hand, limited by the complex topography and inconvenient traffic conditions in mountainous and remote areas, the daily inspection, maintenance and fault repair work of lines and substations face great difficulties. According to statistics, under the existing technical conditions, after a 35kV substation in mountainous areas fails, the average repair time exceeds 48 hours, which is difficult to meet the user's demand for power supply timeliness.

[0003] When the existing emergency power distribution systems respond to emergencies, they mostly adopt a combination of decentralized devices and lack modular integrated design. In case of emergencies such as natural disasters, it is difficult to achieve rapid deployment and seamless access to the power grid, resulting in an extended power outage time in the area and unable to ensure the fast, safe, continuous and reliable supply of electricity. Therefore, there is an urgent need for a new 35kV power distribution system to solve the above problems in the existing technology. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a 35kV modular emergency power distribution system, aiming to solve the problem that the existing emergency power distribution system still has deficiencies in the fast, safe, continuous and reliable supply of electricity in case of emergencies.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A 35kV modular emergency power distribution system includes a 35kV switch station module, a transformer module, a 10kV switch station module, and a communication protection module. The wholes of the 35kV switch station module and the 10kV switch station module are respectively installed in a main cabin body. The main cabin body is divided into two sub-cabin bodies, namely a 35kV cabin body and a 10kV cabin body. The 35kV cabin body and the 10kV cabin body are placed next to each other in sequence and are fixedly connected by fastening bolts between their outer frames. After the 35kV cabin body and the 10kV cabin body are assembled, they form a substation. The 35kV cabin body integrates the 35kV switch station module and the transformer module, and the 10kV cabin body integrates the 10kV switch station module and the communication protection module.

[0007] As a preferred scheme of the utility model, the 10kV switch station module includes a 12kV incoming line switch, a 12kV outgoing line switch, a 12kV station-use transformer cabinet, and a 12kV open busbar equipment cabinet, and the 10kV switch station module realizes copper bar connection.

[0008] As a preferred solution of the present utility model, the communication protection module includes an equipment battery screen, a DC screen, an AC screen, a protection screen, a communication screen and a signal screen. The communication protection module realizes the high and low back-up protection of the transformer by collecting the voltage and current of the outgoing line cabinet of the 35KV transformer and the incoming line cabinet of 10KV.

[0009] As a preferred solution of the present utility model, the 10kV cabin is divided into a 10KV switchgear room and a communication protection room by an "I"-shaped partition board.

[0010] As a preferred solution of the present utility model, the high-voltage incoming line cabinet in the 10KV switchgear room is connected to the low-voltage side of the transformer through a primary cable. The switchgear in the 10KV switchgear room is connected to the main busbar of the cabinet through the internal busbar room to output the 10KV line.

[0011] As a preferred solution of the present utility model, double-opening doors are provided on the left side of the 35kV cabin, and the cabinet in the 35kv cabin is divided into a 35KV switchgear room and a transformer room.

[0012] As a preferred solution of the present utility model, the switchgear in the 35KV switchgear room is connected to the main busbar of the cabinet through the internal busbar room, and the high-voltage outgoing switchgear is connected to the high-voltage side cable of the transformer.

[0013] As a preferred solution of the present utility model, lifting devices, grounding piles and skids are assembled on the bottom frames of the 10kv cabin and the 35kv cabin.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] Adopting the standardized design and factory processing and assembly, all the equipment in the cabin is completed with relevant wiring and commissioning work in the factory, and the unit module is transported and moved, etc. The design concept and technical principle of on-site combined application effectively shorten the construction period, improve the project quality, reduce the life cycle cost, and are beneficial to environmental protection. Its internal environment fully meets the operating conditions of the primary and secondary equipment of the substation and the requirements of the on-site operation of the substation operation and commissioning personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0017] Figure 1 is the plan layout drawing of the 10kv cabin of the present utility model;

[0018] Figure 2 is the plan layout drawing of the 35kv cabin of the present utility model;

[0019] Figure 3 Side view of the 35kV cabin of the present utility model

[0020] Figure 4 Demonstration diagram of power grid access of the present utility model Specific implementation manners

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment 1

[0023] Please refer to Figures 1 - 3 , the present utility model provides the following technical solutions:

[0024] A 35kV modular emergency power transformation and distribution system, including a 35kV switch station module, a transformer module, a 10kV switch station module, and a communication protection module. The wholes of the 35kV switch station module and the 10kV switch station module are respectively installed in the main cabin. The main cabin is divided into two sub-cabins, namely a 35kV cabin and a 10kV cabin. Each sub-cabin can accommodate electrical equipment of different voltage levels. The 35kV cabin and the 10kV cabin are placed adjacent to each other in sequence and are fixedly connected by fastening bolts between the outer frames, which helps to save space and improve the compactness of the overall structure. After the 35kV cabin and the 10kV cabin are assembled, they form a substation. The 35kV switch station module and the transformer module are integrated in the 35kV cabin, and the 10kV switch station module and the communication protection module are integrated in the 10kV cabin. Inside the 10kV cabin, there are also assembled lighting lamps, emergency lamps, cable transfer and tool modules, industrial air conditioners, live warning lamps, distribution boxes, maintenance boxes, dehumidifying and heating devices. Inside the 35kV cabin, there are assembled lighting lamps, emergency lamps, switch cabinet closing and opening indicating lamps, cable transfer and tool modules, industrial air conditioners, live warning lamps, distribution boxes, maintenance boxes, dehumidifying and heating devices. These assembled devices and facilities are important components to ensure the safe and reliable operation of the power system, and at the same time provide convenience and safety guarantee for the operators.

[0025] Specifically, the 10kV switch station module includes a 12kV incoming switch, a 12kV outgoing switch, a 12kV station service transformer cabinet, and a 12kV open busbar equipment cabinet. The 10kV switch station module realizes copper busbar connection. The communication protection module includes an equipment battery panel, a DC panel, an AC panel, a protection panel, a communication panel, and a signal panel. The equipment battery panel provides necessary DC power to ensure the normal operation of the protection system in case of AC power failure. The DC panel contains a DC power system to provide stable DC power for protection and control equipment. The AC panel provides AC power for in-station equipment. The protection panel contains a microcomputer protection device to realize the protection function of the power system. The communication panel realizes the communication connection with the external monitoring system. The signal panel processes and displays system signals such as status indication and warning. The communication panel and the signal panel can realize remote operation in the background and unattended operation. The communication protection module realizes the high and low back-up protection of the transformer by collecting the voltage and current of the 35KV transformer outgoing cabinet and the 10KV incoming cabinet. When a serious fault occurs in the transformer or line, the protection system can quickly act to disconnect the faulty part. Voltage and current sensors are installed on the 35KV transformer outgoing cabinet and the 10KV incoming cabinet to collect voltage and current data in real time. The collected data is transmitted to the communication protection module through communication lines. The 10kV cabin is divided into a 10KV switchgear room and a communication protection room by an "I"-shaped partition, improving space utilization and functional zoning. The high-voltage incoming cabinet in the 10KV switchgear room is connected to the low-voltage side of the transformer through a primary cable to ensure the effective transmission of electricity. The switchgear in the 10KV switchgear room is connected to the main busbar of the cabinet through the internal busbar room to output the 10KV line. Double-opening doors are provided on the left side of the 35kV cabin. The 35kV cabin is divided into a 35KV switchgear room and a transformer room inside the cabinet. Different transformers with different capacities required on-site will have different changes, and a multi-module design of the transformer module is required. At the same time, safety protection measures need to be increased to reduce human unsafe factors. The 35KV switchgear room includes a 35KV incoming switch, a 35KV outgoing switch, a 35KV busbar equipment cabinet, and the switchgear realizes copper busbar connection. The switchgear in the 35KV switchgear room is connected to the main busbar of the cabinet through the internal busbar room. The main busbar is responsible for distributing electricity from the high-voltage side to each switchgear, while the branch busbar further distributes electricity to specific loads or outgoing lines. The high-voltage outgoing switchgear is connected to the high-voltage side cable of the transformer and is responsible for transmitting electricity from the high-voltage side of the transformer to the power grid or downstream loads. Lifting devices, grounding piles, and skids are assembled on the bottom frames of the 10kv cabin and the 35kv cabin, facilitating the lifting operation during equipment installation and maintenance.

[0026] It should be noted that this solution can quickly complete grid access at any position on the power supply line through the line T-connection technology. The whole system does not require special foundation treatment and can be quickly assembled and connected to the line in a narrow space. The on-site test and commissioning data are simple, and rapid power supply can be completed in a relatively short time.

[0027] Furthermore, it should be noted that by constructing a prefabricated cabin modular substation, factory prefabricated equipment replaces the traditional building construction plan, and it can be put into operation only by combining and commissioning on site; because it can be towed and moved, it can be reused after changing the working location, which greatly reduces the construction period of the traditional substation and the waste of resources caused by repeated investment in construction.

[0028] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A 35 kV modular emergency power distribution and transformation system, characterized in that It includes a 35kV switchyard module, a transformer module, a 10kV switchyard module, and a communication protection module. The overall units of the 35kV switchyard module and the 10kV switchyard module are respectively installed in the main cabin. The main cabin is divided into two sub-cabins, namely the 35kV cabin and the 10kV cabin. The 35kV cabin and the 10kV cabin are placed adjacent to each other in sequence, and their outer frames are fixedly connected by fastening bolts. After the 35kV cabin and the 10kV cabin are assembled, they form a substation. The 35kV switchyard module and the transformer module are integrated in the 35kV cabin, and the 10kV switchyard module and the communication protection module are integrated in the 10kV cabin.

2. A 35 kV modular emergency power distribution and transformation system according to claim 1, characterized in that: The 10kV switchyard module includes a 12kV incoming line switch, a 12kV outgoing line switch, a 12kV station service transformer cabinet, and a 12kV open busbar equipment cabinet. The 10kV switchyard module realizes copper busbar connection.

3. A 35 kV modular emergency power distribution and transformation system according to claim 1, characterized in that: The communication protection module includes an equipment battery panel, a DC panel, an AC panel, a protection panel, a communication panel, and a signal panel. The communication protection module realizes the high and low back-up protection of the transformer by collecting the voltage and current of the 35kV transformer outgoing line cabinet and the 10kV incoming line cabinet.

4. A 35 kV modular emergency power distribution and transformation system according to claim 1, characterized in that: The 10kV cabin is divided into a 10kV switchgear room and a communication protection room by an "I"-shaped partition board.

5. A 35 kV modular emergency power distribution and transformation system according to claim 4, characterized in that: The high-voltage incoming line cabinet of the 10kV switchgear room is connected to the low-voltage side of the transformer through a primary cable. The switchgear in the 10kV switchgear room is connected to the main busbar of the cabinet through the internal busbar room to output the 10kV line.

6. A 35 kV modular emergency power distribution and transformation system according to claim 1, characterized in that: Double doors are provided on the left side of the 35kV cabin. The cabinet in the 35kV cabin is divided into a 35kV switchgear room and a transformer room.

7. A 35 kV modular emergency power distribution and transformation system according to claim 6, characterized in that: The switchgear in the 35kV switchgear room is connected to the main busbar of the cabinet through the internal busbar room, and the high-voltage outgoing line switchgear is connected to the high-voltage side cable of the transformer.

8. A 35 kV modular emergency power distribution and transformation system according to claim 1, characterized in that: Lifting devices, grounding piles, and skids are assembled on the bottom frames of the 10kV cabin and the 35kV cabin.

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