China Box Compact Packaged Substation

Product Description:

Box-type substation, also known as prefabricated substation. It is a high-voltage switchgear, distribution transformer and low-voltage power distribution device, which are prefabricated indoor and outdoor compact power distribution equipment in a factory according to a certain wiring scheme. Together, it is installed in a moisture-proof, rust-proof, dust-proof, rat-proof, fire-proof, anti-theft, heat-insulating, fully enclosed, movable steel structure box. Box-type substations are further divided into European-type box-type substations, American-type box-type substations, and underground box-type substations.

Application:

It is especially suitable for urban network construction and reconstruction, and it is a brand-new substation emerging after civil substations. Box-type substations are suitable for mines, factories, oil and gas fields and wind power stations.

Features:

The box-type substation is mainly composed of electrical units such as multi-circuit high-voltage switch system, armored busbar, substation integrated automation system, communication, telecontrol, metering, capacitance compensation and DC power supply. It is installed in a moisture-proof, rust-proof, dust-proof, Rodent-proof, fire-proof, anti-theft, heat insulation, fully enclosed, movable steel structure box, mechatronics, fully enclosed operation, mainly has the following characteristics:

1. Advanced technology, safe and reliable

The box part adopts domestic leading technology and technology, the outer shell is generally made of galvanized steel plate, the frame adopts standard container material and production process, has good anti-corrosion performance, guarantees no rust for 20 years, the inner sealing plate adopts aluminum alloy gusset plate, and the interlayer adopts Fireproof and thermal insulation materials, air conditioning and dehumidification devices are installed in the box, and the operation of the equipment is not affected by the natural climate environment and external pollution, and can ensure normal operation in the harsh environment of -40℃～+40℃. The primary equipment in the box adopts fully enclosed high-voltage switchgear (such as: xgn type), dry-type transformers, dry-type transformers, vacuum circuit breakers, spring operating mechanisms, rotary isolation switches and other leading domestic technology equipment. The products have no exposed live parts. The fully enclosed and fully insulated structure can completely achieve zero electric shock accidents. The whole station can realize oil-free operation with high safety. The secondary computer integrated automation system can realize unattended operation.

2. High degree of automation

The whole station is intelligently designed, and the protection system adopts the substation microcomputer integrated automation device, which is installed in a decentralized manner, which can realize ;four remotes;, namely telemetry, remote signaling, remote control, and remote adjustment. Each unit has an independent operation function and complete relay protection functions. , the operating parameters can be set remotely, the humidity and temperature in the box can be controlled, and the remote smoke alarm can be used to meet the requirements of unmanned duty; it can also realize remote monitoring of images as needed.

3. Factory prefabrication

During the design, as long as the designer makes a main wiring diagram and design of the equipment outside the box according to the actual requirements of the substation, the specifications and models of the box transformer provided by the manufacturer can be selected. All equipment is installed and debugged in the factory once. The construction is factory-like, which shortens the design and manufacturing cycle; on-site installation only requires box positioning, cable connection between boxes, outgoing cable connection, protection setting verification, transmission test and other work that needs to be debugged. The entire substation is installed from installation to commissioning. It only takes about 5 to 8 days, which greatly shortens the construction period.

4. Flexible combination

Due to the compact structure of the box-type substation, each box constitutes an independent system, which makes the combination method flexible and changeable. Full box-type substation; it can also only use 10kv switch box, 35kv equipment outdoor installation, 10kv equipment and control system installation in the box, for this combination, it is especially suitable for the transformation of old stations in rural power grid transformation, that is, the original 35kv The equipment does not move, and only one 10kv switch box can be installed to meet the requirement of unattended operation. In short, there is no fixed combination mode for box-type substations, and the user can freely combine some modes according to the actual situation to meet the needs of safe operation.

5. Investment saving and quick effect

Compared with the conventional substation of the same scale, the box-type substation reduces the investment by 40% to 50%. Based on the 35kv single main transformer 4000kva scale substation, the civil engineering (including land acquisition costs) of the box-type substation saves more than 1 million yuan than the conventional substation; From the perspective of completion and commissioning, it is conservatively estimated that each station is put into operation 4 months in advance. If the average load is 2000kw, the profit from electricity sales is 0.10 yuan/kw.h, and the net profit can be increased by more than 600,000 yuan in three months. In box-type substations, due to the selection of advanced equipment, especially the operation of oil-free equipment, the problem of equipment leakage in conventional substations has been fundamentally and completely solved. The operation and maintenance costs are about 100,000 yuan, and the overall economic benefits are very considerable.

6. Small footprint

Taking a 4000kva single main substation scale substation as an example, to build a conventional 35kv substation, it takes about 3000m of land, and large-scale civil engineering is required. The minimum floor area of the whole body can be 100m, and the total floor area including other equipment of 35kv is 300m at most, which is only 1/10 of the floor area of the substation of the same scale. It can be installed and put into production by making full use of the street center, square and factory corner. , in line with the national policy of saving land.

7. Beautiful appearance

The box shell is made of galvanized steel plate and container manufacturing technology, and the appearance design is beautiful. On the premise of ensuring the reliability of power supply, by choosing the shell color of the box-type substation, it is very easy to coordinate with the surrounding environment, especially suitable for urban construction, such as : Urban residential quarters, stations, ports, airports, parks, green belts and other densely populated areas, it can be used as both a fixed substation and a mobile substation, which has the effect of embellishing and beautifying the environment.

The box-type substation shell is made of steel plate or alloy plate, equipped with a double-layer top cover, and has good heat insulation. The shell and skeleton are all treated with anti-corrosion, which has the conditions for long-term outdoor use. Shape and color can be coordinated with the environment. It is easy to install. There is a cable room under the foundation of the box-type substation, and there is a manhole in the low-voltage room to enter the cable room for work. In terms of volume, European-style box-type transformers are relatively large due to the internal installation of conventional switch cabinets and transformers. The American box-type transformer has a smaller volume due to the integrated installation.

Features:

1. Advanced technology, safe and reliable, high-voltage switchgear, transformer and low-voltage switchgear are integrated into one, and the complete set is strong

2. Factory prefabrication, as long as the designer makes a main wiring diagram and design of the equipment outside the box according to the actual requirements of the substation, the specifications and models of the box transformer provided by the manufacturer can be selected.

3. High degree of automation; perfect high and low voltage protection, safe and reliable operation and simple maintenance

4. Small footprint, low investment, short production cycle, convenient movement, flexible and diverse wiring schemes

5. Small footprint and unique structure: the unique honeycomb structure double-layer (composite board) shell is firm, heat-insulating, heat-dissipating and ventilating, beautiful, and has a high protection level. The shell materials are stainless steel alloy, aluminum alloy, cold-rolled plate, color Steel plate optional

6. Beautiful appearance and various types: general type, villa type, compact type and other styles;

7. The network automation terminal (FTU) can be assembled in the high-voltage ring network cabinet to realize reliable detection of short circuit and single-phase grounding fault, with the "four remote" function, which is convenient for automatic upgrade of distribution network

Implementation standard:

GB17467-1998;High and Low Voltage Prefabricated Substation; and IEC1330 and other standards

Technical parameter:

Subject to drawings, transformer parameters refer to national standards

After-sales commitment:

One year warranty

Note: Products can be customized according to customer needs to meet the needs of use, and will not affect the normal product warranty.