The difference between pre-installed substation and combined substation

Pre-installed Substation (European Box Transformer) Brief Introduction This series of combined (box-type) substation is a complete set of outdoor and oil transformer and distribution devices composed of three parts: high-voltage switchgear, power transformer and low-voltage switchgear. The product has the characteristics of strong complete set, small footprint, small investment, convenient installation and maintenance, beautiful appearance, strong weather resistance and so on. This product is a frame structure, welded with section steel, aluminum alloy plate outside the frame, and coated with a special paint layer, so that it has strong mechanical properties, weather resistance, corrosion resistance. When the

combined (box-type) substation is an integral structure, the box is divided into three relatively independent chambers with steel plates, namely, high-voltage chamber, transformer chamber and low-voltage chamber. The lighting of each room is automatically shut down with the opening of the door. The top of the combined (box-type) substation is equipped with a thermal insulation layer. In high temperature and cold areas, the temperature in the box is easy to accumulate and change and condense. The thermal insulation layer around the box can be added. In order to stabilize the temperature in the box, the transformer room and the low-voltage room are equipped with automatic temperature control devices. Combined (box-type) substation can effectively prevent the invasion of small animals. The maintenance of the transformer is easily pushed and pulled out by the detachable trolley. Four corresponding lifting bolts that can be pulled out and pushed are arranged on both sides of the base of the box body, and four supports with the same function are arranged on both sides of the top eaves, which can be hoisted and transported as a whole.

This product has the characteristics of strong complete set, small size, compact structure, safe and reliable operation, convenient maintenance and movable. It covers an area of only 1/10~1/5 of the conventional civil substation with the same capacity, greatly reducing the construction cost. It can be used in ring network power distribution system, dual power supply or radiation terminal power distribution system. The shell of this product is made of composite plate and steel plate, it is a new complete set of equipment for the construction and transformation of urban and rural substations. This product symbol GB/T17467-1998 "high voltage/low voltage prefabricated substation" standard and IECl330 standard.

1. It has the characteristics of strong set, small size, compact structure, safe and reliable operation, convenient maintenance, and movable.

2. The occupied area is only 1/10~1/5 of the conventional civil substation with the same capacity, which greatly reduces the construction cost.

3. It can be used in the ring network power distribution system in the power distribution system, and can also be used in the dual power supply or radiation terminal power distribution system.

4. The shell of this product should be made of composite plate and steel plate. It is a new complete set of equipment for the construction and transformation of urban and rural substations.

Structural features:

1. This product is composed of high-voltage power distribution equipment, transformers and low-voltage power distribution equipment. It is divided into three functional compartments, namely high-voltage room, transformer room and low-voltage room. The high and low-voltage rooms are fully functional. The primary power supply system on the high-voltage side can be arranged in various power supply modes such as ring network power supply, terminal power supply, dual power supply, etc., and high-voltage metering elements can also be installed to meet the requirements of high-voltage metering. The transformer room can choose S11, S9 and other low-loss oil-immersed transformers and dry-type transformers. The transformer room is equipped with a self-starting forced air cooling system and a lighting system. The low-voltage room can adopt a panel or cabinet-mounted structure to form the power supply scheme required by the user according to the user's requirements. It has various functions such as power distribution, lighting distribution, reactive power compensation, electric energy metering and electric quantity measurement to meet the different requirements of users, and to facilitate the user's power supply management and improve the quality of power supply.

2. The high-pressure chamber has a compact and reasonable structure and a comprehensive anti-misoperation interlocking function. When the transformer is required by the user, it can be equipped with a track to easily enter and exit from the door on both sides of the transformer room. Each room is equipped with automatic lighting device. In addition, all components selected for high and low pressure rooms have reliable performance, convenient operation, safe and reliable operation, and convenient operation and maintenance.

3, the use of natural general and forced ventilation in two ways, so that the ventilation and cooling is good. The transformer room and the low-voltage room are equipped with ventilation ducts, and the exhaust fan is equipped with a temperature control device, which can be automatically started and closed according to the set temperature to ensure the full-load operation of the transformer.

4. The box structure can prevent rainwater and dirt from entering and is made of special steel plate or aluminum alloy plate. After anti-corrosion treatment, it has long-term outdoor use conditions to ensure anti-corrosion, waterproof and dustproof performance, long service life and beautiful appearance.