CN211017998U - Chinese style indoor transformer substation - Google Patents

Abstract

A Chinese-style indoor substation comprises a transformer room, a high-voltage room and a low-voltage room which are positioned in the same shell. The transformer chamber and the high-voltage chamber are arranged adjacently, and the low-voltage chamber is positioned on one side of the transformer chamber and one side of the high-voltage chamber to form a delta-shaped arrangement. A transformer is arranged in the transformer chamber. The high-voltage chamber is provided with a high-voltage switch. The low-pressure chamber is provided with a low-pressure device. The high-voltage switch is correspondingly connected with the transformer, and a connecting high-voltage cable passes through the first partition plate. The transformer is correspondingly connected with a main breaker in the low-voltage device, and the used connecting copper bar passes through the second partition plate. The transformer substation is low in height, small in occupied area, compact in structure, small in occupied area, low in operation and maintenance cost, investment-saving, convenient and flexible to install, maintain and disassemble, inconvenience brought by indoor site environment is solved, and the frame type shell is convenient and flexible to install, maintain and disassemble.

Description

Chinese style indoor transformer substation

Technical Field

The utility model belongs to the transformer substation field especially relates to indoor transformer substation of chinese style (indoor miniaturized integrated type transformer substation).

Background

The traditional substation is widely applied to urban power distribution networks, and most of the traditional substations are provided with independent transformers, low-voltage cabinets and high-voltage cabinets which are arranged indoors. The occupied area of the traditional substation is large due to various factors such as the layout of the busbar, the operation of equipment, the personal safety, the ventilation and cooling of the equipment and the like. The power transmission of a long-distance low-voltage power grid consumes the energy of the power grid, and the efficiency is naturally lower from the perspective of power transmission and transformation. The installation of the devices in the substation is extremely complex, which in turn increases the difficulty of setting up the substation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an indoor transformer substation of chinese style, it is high low, area is little, is suitable for indoor places such as residential quarter, high-rise building, trade and business mansion and airport.

The technical scheme is as follows:

a Chinese-style indoor substation comprises a transformer room, a high-voltage room and a low-voltage room which are positioned in the same shell.

The technical key points are as follows:

the transformer chamber and the high-voltage chamber are arranged adjacently, and the low-voltage chamber is positioned on one side of the transformer chamber and one side of the high-voltage chamber to form a delta-shaped arrangement.

The transformer chamber is separated from the high-voltage chamber by a first partition plate.

The transformer chamber and the high-voltage chamber and the low-voltage chamber are separated by a second partition plate.

A transformer is arranged in the transformer chamber. The high-voltage chamber is provided with a high-voltage switch. The low-pressure chamber is provided with a low-pressure device.

The high-voltage switch is correspondingly connected with the transformer, and a connecting high-voltage cable passes through the first partition plate.

The transformer is correspondingly connected with a main breaker in the low-voltage device, and the used connecting copper bar passes through the second partition plate.

The first partition and the second partition may be vertically disposed.

The transformer room is provided with a ventilation window, and a fan and an induced draft fan are arranged in the transformer room.

The bottom of the housing may be secured with a bottom bracket. The housing may be a rectangular parallelepiped frame housing.

The advantages are that:

the transformer substation replaces the revolutionary solution of the traditional indoor transformer substation, and mainly solves the problems of the traditional transformer substation, insufficient area of the traditional transformer substation, overlong power supply radius of a voltage cable, shortage of investment and the like, the traditional transformer substation is about 3 meters in height (a plurality of components and equipment are placed and installed in separate equipment rooms), the transformer substation (a transformer, low-voltage equipment and high-voltage equipment are respectively placed in corresponding spaces, the area is saved, the height is reduced, the height is about 2 meters), the occupied area of the transformer substation is about 30 percent of that of the traditional transformer substation, the transformer substation is compact in structure, small in occupied area, low in operation and maintenance cost, investment is saved, convenience and flexibility in installation, maintenance and disassembly are achieved, inconvenience caused by an indoor field environment is solved, and convenience and flexibility in installation, maintenance and disassembly are achieved for a frame type shell.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a left side view schematic diagram of fig. 1.

Fig. 3 is a schematic top view of the structure of fig. 1.

Fig. 4 is a schematic diagram of the right view structure of fig. 1.

Fig. 5 is a rear view of the structure of fig. 1.

Fig. 6 is a schematic view of the "pin" shape of the present invention (in the top view direction of fig. 1).

A low-pressure chamber 1, a high-pressure chamber 2, a transformer 3, a ventilation window 4, an intelligent integrated capacitance compensation device 5,

High-voltage board 6, low-voltage apparatus 7, casing 8, high tension switchgear 9, end bracket 10, first hole 11, second hole 12, low tension switchgear 13, draught fan 14, fan 15, transformer room 16, first baffle 17, second baffle 18, copper bar 19, can dismantle shrouding 20.

Detailed Description

A Chinese style indoor substation comprises a transformer chamber 16, a high-voltage chamber 2 and a low-voltage chamber 1 which are positioned in the same cuboid frame shell 8.

The transformer chamber 16 and the high-voltage chamber 2 are disposed adjacently, as shown in fig. 6, with the transformer chamber 16 being located above the left side of fig. 6 and the high-voltage chamber 2 being located above the right side of fig. 6.

The low-pressure chamber 1 is located below the transformer chamber 16 and the high-pressure chamber 2, below fig. 6.

The transformer chamber 16, the high-voltage chamber 2 and the low-voltage chamber 1 form a three-dimensional arrangement similar to Chinese character 'pin' shape.

The transformer chamber 16 is separated from the high-voltage chamber 2 by a first partition 17.

The transformer chamber 16 is separated from the high-voltage chamber 2 and the low-voltage chamber 1 by a second partition 18.

The first partition 17 and the second partition 18 are vertically disposed.

The split type transportation and the field assembly and installation can be realized. And can be transported integrally.

As shown in fig. 6: the low-voltage chamber 1 is a rectangle with a transverse length at the lower part, the transformer chamber 16 and the high-voltage chamber 2 are adjacently arranged at the upper part of the rectangle with the transverse length of the transformer chamber 16 is shorter than that of the low-voltage chamber 1,

the high-pressure chamber 2 is vertically long and rectangular.

The transformer chamber 16 has a transverse length longer than a vertical length of the transformer chamber 16.

The transformer 3 is disposed in the transformer chamber 16, and a small cast dry transformer of the SCB series, such as SCB10, may be used.

A high-voltage cabinet 6 is arranged in the high-voltage chamber 2, a high-voltage switch 9 is arranged in the high-voltage cabinet 6, and the high-voltage switch 9 can be a C2SR-12 Chinese solid insulation switch.

The low-pressure chamber 1 has a low-pressure device 7.

The high-voltage incoming cable enters the high-voltage chamber 2 (leading to a Chinese style indoor substation) from a first hole 11 at a bottom bracket 10 positioned below the high-voltage chamber 2 from the underground through a cable trench, and is connected to the upper end of a high-voltage switch 9 by a cable plug.

The lower end of the high-voltage switch 9 is connected to the high-voltage terminal of the transformer 3 by a high-voltage cable passing through the first partition 17.

The transformer 3 is a core device, and converts 10kV high voltage electricity into 0.4kV low voltage electricity by utilizing the principle of electromagnetic induction.

A copper bar 19 passing through the second partition 18 connects the low voltage terminals of the transformer 3 to the upper end of the main breaker in the low voltage apparatus 7.

The lower end of the main breaker is connected with the upper end of a low-voltage switch 13 (low-voltage branch circuit breaker) of the low-voltage device 7 through a Venier bus system, and a low-voltage cable connected with an outgoing terminal at the lower end of the low-voltage switch 13 is led out of the low-voltage chamber 1 (led out of a Chinese indoor transformer substation) through a second hole 12 at the bottom bracket 10 positioned below the low-voltage chamber 1.

The low-voltage device 7 comprises a main circuit breaker, a low-voltage switch 13, a current transformer, a compensating device low-voltage switch and an intelligent integrated capacitance compensating device 5 (the optional model is J L-ZM-S450), and the low-voltage device is arranged in the low-voltage chamber 1 and is a modularized dense bus system.

The wiener bus system is also simultaneously connected with the upper end of a low-voltage switch (low-voltage branch circuit breaker) of the compensation device, and the lower end of the low-voltage switch of the compensation device is connected with an intelligent integrated capacitance compensation device 5.

As shown in fig. 1, a ventilation window 4 is provided on the left side wall (detachable sealing plate 20) of the transformer chamber 16, a fan 15 (axial flow fan) is provided at the bottom of the transformer chamber 16, and a strong convection is formed by cooperating with an induced draft fan 14 at the upper part of the transformer chamber 16, so as to realize the exchange of cold and hot air. A bottom bracket 10 is fixed to the bottom of the case 8.

The connection between the internal high voltage to the transformer 3 and the transformer 3 to the main breaker can be done in the factory.

The copper bar 19 is sleeved with a current transformer according to requirements.

The low-voltage cable is led out of the low-voltage chamber 1 and finally connected with user equipment, and can play a role in wiring and distributing electric energy. Meanwhile, the transformer substation can also meet the automation requirement, common automation equipment such as remote control, remote signaling and remote measurement can be arranged as required, high-voltage metering and low-voltage metering equipment which are commonly used can be arranged, and the low-voltage device 7 can also be provided with equipment with a network distribution automation function and adapt to the requirements of unattended and digital network management power stations. The wiener bus system is a commercially available product.

The on-site high-voltage incoming cable enters the special high-voltage cable channel from the first hole 11 at the bottom of the equipment and is connected with the high-voltage switch 9. The on-site low-voltage cable is fed in from the second hole 12 at the bottom of the device, the cable is directly bolted to the outgoing line terminal at the lower end of the low-voltage switch 13, and on-site installation engineering is greatly reduced. 8 bottoms of casing are equipped with bottom bracket 10 (a plurality of channel-section steel welding), direct whole place on the basis can, avoided the complicated engineering that traditional scheme need install transformer, low-voltage cabinet and high-voltage board, be close to the load center, guarantee small, ventilate good low temperature rise, owing to ventilation window 4 in addition, 16 spaces of transformer room are enough big and be equipped with fan 15, cooperate the draught fan 14 of 16 tops of transformer room to form strong convection current.

Claims (7)

1. Indoor transformer substation of chinese style, including transformer room (16), high-pressure chamber (2) and low-pressure chamber (1) that are located same casing (8), its characterized in that:

the transformer chamber (16) and the high-voltage chamber (2) are arranged adjacently, and the low-voltage chamber (1) is positioned at one side of the transformer chamber (16) and one side of the high-voltage chamber (2) to form a delta-shaped arrangement;

the transformer chamber (16) is separated from the high-voltage chamber (2) by a first partition plate (17);

a second partition plate (18) is arranged between the transformer chamber (16) and the low-pressure chamber (1) and between the high-pressure chamber (2);

a transformer (3) is arranged in the transformer chamber (16); a high-voltage switch (9) is arranged in the high-voltage chamber (2); the low-pressure chamber (1) is provided with a low-pressure device (7);

the high-voltage switch (9) is correspondingly connected with the transformer (3), and a used connecting high-voltage cable passes through the first partition plate (17);

the transformer (3) is correspondingly connected with a main breaker in the low-voltage device (7), and the used connecting copper bar (19) passes through the second partition plate (18).

2. The indoor substation of chinese style of claim 1, characterized in that:

the first partition plate (17) and the second partition plate (18) are vertically arranged.

3. The indoor substation of chinese style of claim 1, characterized in that:

the transformer chamber (16) is provided with a ventilation window (4), and a fan (15) and an induced draft fan (14) are arranged in the transformer chamber (16).

4. The indoor substation of chinese style of claim 1, characterized in that:

a bottom bracket (10) is fixed at the bottom of the shell (8).

5. The indoor substation of chinese style of claim 1, characterized in that:

the shell (8) is a cuboid frame shell (8).

6. The indoor substation of chinese style of claim 1, characterized in that:

the low-voltage chamber (1) is a rectangle with a transverse length, the transformer chamber (16) and the high-voltage chamber (2) are adjacently arranged on one side of the rectangle with the transverse length, the transverse length of the transformer chamber (16) is shorter than that of the low-voltage chamber (1), and the high-voltage chamber (2) is a rectangle with a vertical length.

7. The indoor substation of chinese style of claim 6, characterized in that:

the transverse length of the transformer chamber (16) is longer than the vertical length of the transformer chamber (16).

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