CN201339334Y - Prefabricated box type substation - Google Patents

Abstract

The utility model discloses a prefabricated box type substation, which comprises a box body 14, an outer door 16, a high-voltage chamber 1, a transformer room 5, a corridor 3 and a low voltage chamber 2. A top cover 9 is arranged at the upper end of the box body 14; a base 11 is arranged at the bottom of the box body 14; the base 11 is provided with a hoisting shaft 12, a drain port 7 and a cable conduit 8; a waterproof canopy 15 is arranged on the periphery of the top cover 9; the high-voltage chamber 1, the transformer room 5 and the low voltage chamber 2 are partitioned by metal partition boards 4; and a current-limiting fuse is arranged in the high voltage chamber 1. The utility model has the advantages of firm box body, good corrosion-proof capability, effective prevention of sunlight radiation, safety, reliability, good sealing property, easy installation, easy replacement, simple check and maintenance and low cost.

Description

A prefabricated box-type substation

technical field

The utility model relates to the field of substations, in particular to a preinstalled box-type substation.

Background technique

In power transmission and application, in order to convert high-voltage electric energy in the grid into low-voltage electric energy. Prefabricated substation is the term of the current national standard and IEC standard.

The prefabricated substation is different from the conventional civil substation. It is a complete set of equipment that connects the above-mentioned transformers, high and low voltage switches, control equipment and other components and shells according to a certain design plan in the factory, assembles and passes the test; After arriving at the site of use, it can be put into use immediately after being installed on site and connected with external incoming and outgoing cables.

With the improvement of urban environmental beautification requirements, people put forward higher standards for prefabricated substations. During use, it was found that traditional substations have the following disadvantages: the box is not firm, the anti-corrosion ability is poor, the safety performance, waterproof performance and Poor reliability performance, difficult installation, replacement, inspection and maintenance, high cost and other shortcomings.

Contents of the invention

In view of the above shortcomings, the utility model provides a new type of pre-installed box-type substation.

In order to overcome above-mentioned deficiency, the technical scheme that the utility model takes is:

A prefabricated box-type substation, including a box body 14, an outer door 16, a high-voltage room 1, a transformer room 5, a corridor 3 and a low-voltage room 2, the upper end of the box body 14 is provided with a top cover 9, and the box body 14 The bottom is provided with a base 11, the base 11 is provided with a lifting shaft 12, a sewage outlet 7 and a cable pipe 8, and a waterproof eaves 15 are provided around the top cover 9. The high-voltage room 1, the transformer room 5 and the low-voltage room 2 Separated by a metal partition 4, the high-voltage chamber 1 is provided with a flow-limiting fuse;

The frame of the box body 14 is welded by channel steel and angle steel, the box shell is made of a 2mm thick aluminum alloy plate, and the shutter 6 is also installed on the box shell;

The top cover 9 is a slope of 1:50, and a flame-retardant heat-insulating fiber material layer is arranged in the top cover interlayer;

The base 11 is a mesh structure;

The high-voltage chamber 1, the transformer chamber 5 and the low-voltage chamber 2 are all equipped with lighting lamps, and the top of the transformer chamber 5 is equipped with a ventilation fan, and the transformer chamber 5 is provided with trolley tracks and zinc oxide arresters;

The outer door 16 door frame is equipped with rubber moldings, and the outer door 16 is also equipped with a door lock 10;

The utility model has the beneficial effects: the box body is firm, has good anti-corrosion ability, can effectively prevent sunlight radiation, is safe and reliable, has good sealing performance, is easy to install and replace, simple to check and maintain, and low in cost.

Description of drawings

Fig. 1, the plan layout schematic diagram of the present utility model.

Fig. 2, the schematic diagram of side longitudinal section of the utility model.

Fig. 3 is a schematic cross-sectional view of the utility model.

Fig. 4, the installation diagram of the utility model.

Fig. 5 is a schematic diagram of hoisting of the utility model.

Detailed ways

Please refer to the accompanying drawings to illustrate its implementation process:

A prefabricated box-type substation, including a box body 14, an outer door 16, a high-voltage room 1, a transformer room 5, a corridor 3 and a low-voltage room 2, the upper end of the box body 14 is provided with a top cover 9, and the box body 14 The bottom is provided with a base 11, and the base 11 is provided with a lifting shaft 12, a sewage outlet 7 and a cable pipe 8, and the effect of the lifting shaft 12 is to facilitate the overall hoisting of the product in place. Top cover 9 is provided with waterproof eaves 15 around, and waterproof eaves 15 can be ventilated, and can also stop rainwater from flowing into casing inside. The high-voltage chamber 1, the transformer chamber 5 and the low-voltage chamber 2 are separated by a metal partition 4, and the metal partition 4 can ensure that each chamber is independent from each other, and is safe and reliable. The high-voltage room 1 adopts the scheme of connecting load switches with current-limiting fuses in series. This configuration is simple in structure, easy to install, inspect, maintain, and use, and has low cost. It has comprehensive anti-misoperation functions. According to transformer The short-circuit test data shows that when a short-circuit occurs inside the fuel tank, the fault must be removed within 20ms in order to prevent the fuel tank from exploding, and the current-limiting fuse can remove the fault within 10ms. Therefore, this scheme is very effective in protecting the transformer. The high-voltage chamber is also equipped with a zinc oxide arrester for lightning protection, and can also perform high-voltage metering.

The frame of the box body 14 is welded by channel steel and angle steel, which has high mechanical strength. The box shell is riveted with a 2mm thick anti-rust aluminum alloy plate (also can use aluminum-zinc coated plate according to user needs). It has excellent anti-corrosion ability, and can be coordinated with the surrounding environment after being painted and colored. , also be equipped with shutter 6 on the casing shell, the effect of shutter plays the effect of ventilating.

The top cover 9 is a slope of 1:50, and a 30-50 mm thick new flame-retardant heat-insulating fiber material layer is installed in the top cover interlayer, which can effectively prevent solar radiation.

The base 11 has a mesh structure, which is convenient for the transformer oil to leak into the oil pit and the air inlet duct of the transformer room.

The high-voltage chamber 1, the transformer chamber 5 and the low-voltage chamber 2 are all equipped with lighting lamps, and two ventilating fans are installed on the top of the chamber. When the oil temperature on the top of the transformer reaches above 80 degrees Celsius, the ventilating fans will work automatically, and the cold air will flow from the box The bottom enters the transformer room, and the hot air is discharged from the box top around the box. When the oil temperature drops below 65 degrees Celsius, the ventilation fan automatically stops to ensure that the transformer works at full load. When the door of the room is opened, the light will be on, otherwise it will be off. There is a trolley track in the room, which can facilitate the installation and replacement of the transformer. There is also an inner net door in the transformer room to ensure the safety of the inspectors.

The outer door 16 door frame is equipped with rubber moldings, and the outer door 16 is also equipped with a door lock 10, which can effectively prevent rainwater, dust, and small animals from entering the casing, and ensure the reliable operation of the electrical equipment in the casing.

The low-voltage room of this product is equipped with a special metering unit and a low-voltage automatic power compensation device. The compensation amount is 15%-30% of the transformer capacity, and it can also be compensated according to the actual demand of the user. A group of 220V surge arresters are also installed in the low-voltage room to protect the low-voltage side.

The utility model has the beneficial effects: the box body is firm, has good anti-corrosion ability, can effectively prevent sunlight radiation, is safe and reliable, has good sealing performance, is easy to install and replace, simple to check and maintain, and low in cost.

Claims (6)

1, a kind of prepackage molding box formula transformer station, comprise casing (14), external door (16), hyperbaric chamber (1), transformer room (5), corridor (3) and low-pressure chamber (2), described casing (14) upper end is provided with top cover (9), it is characterized in that, casing (14) bottom is provided with base (11), and base (11) is provided with suspension shaft (12), sewage draining exit (7) and cable pipe (8), top cover (9) is provided with rain visor (15) all around, described hyperbaric chamber (1) separates with metal partion (metp) (4) between transformer room (5) and the low-pressure chamber (2), and this hyperbaric chamber is provided with current-limiting fuse in (1).

2, a kind of prepackage molding box formula according to claim 1 transformer station is characterized in that described casing (14) skeleton adopts channel-section steel and angle steel to be welded, and cabinet shell adopts the thick aluminium alloy plate of 2mm, and shutter (6) also is installed on the cabinet shell.

3, a kind of prepackage molding box formula according to claim 1 transformer station is characterized in that described top cover (9) is 1: 50 inclined-plane, the flame retardant type insulation is housed every fibrous material layer in the top cover interlayer.

4, a kind of prepackage molding box formula according to claim 1 transformer station is characterized in that described base (11) is a net structure.

5, a kind of prepackage molding box formula according to claim 1 transformer station, it is characterized in that, described hyperbaric chamber (1), be provided with illuminating lamp in transformer room (5) and the low-pressure chamber (2), ventilation fan is equipped with in the top in described transformer room (5), and this transformer room is provided with trolley track and Zinc-Oxide Arrester in (5).

6, a kind of prepackage molding box formula according to claim 1 transformer station is characterized in that, on described external door (16) doorframe rubber filler rod is housed, and door lock (10) also is installed on the external door (16).

Images