Product introduction

This series of pre-installed substations are suitable for three-phase AC power distribution systems with a rated frequency of 50HZ and 40.5KV and below, and residential communities, commercial buildings, hotels, large construction sites, high-rise buildings, industrial and mining enterprises, Temporary construction sites are suitable for ring network power supply and also for radial terminal power supply.

This series of prefabricated substations has the advantages of compact structure, strong complete set, safe and reliable operation, convenient maintenance, beautiful appearance, etc.; it has the advantages of small volume, small footprint, large selectivity, small on-site installation, installation and commissioning The cycle is short and it moves with the load center.

Environmental conditions for use

The altitude does not exceed 1000m. If the specially ordered transformer and low-voltage components are used, the altitude can reach 3000m.

The maximum ambient temperature does not exceed +40°C, and the minimum does not fall below -25°C; the average temperature within a 24-hour period does not exceed +35°C.

Outdoor wind speed does not exceed 35m/s.

The relative humidity of the air does not exceed 90% (+25°C).

The horizontal acceleration of the earthquake is not more than 0.4m/s2, and the vertical acceleration is not more than 0.2m/s2.

There is no fire, explosion hazard, severe pollution, chemical corrosion and severe vibration.

Model and meaning

Structural Features

This product is composed of a high-voltage power distribution device, a transformer and a low-voltage power distribution device. It is divided into three functional compartments, namely a high-voltage room, a transformer room and a 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 into multiple power supply modes such as ring network power supply, terminal power supply, and dual power supply. It can also be equipped with high-voltage metering components to meet the requirements of high-voltage metering. The transformer room can choose oil-immersed transformers and dry-type transformers; the transformer room is equipped with a self-starting forced air cooling system and a lighting system. According to user requirements, the low-voltage room can adopt a panel or cabinet-mounted structure to form the user's required power supply plan, with power distribution Various functions such as electricity, lighting distribution, reactive power compensation, electric energy metering, and electric quantity measurement meet the different requirements of users, and facilitate the user's power supply management and improve the quality of power supply.

The high-pressure chamber has a compact and reasonable structure, and has a comprehensive anti-misoperation interlock function. Transformers can be equipped with rails when the user has requirements, which can easily enter and exit from the doors on both sides of the transformer room. Each room has an automatic lighting device. In addition, all the components used in the high and low voltage rooms are reliable in performance, easy to operate, safe and reliable in product operation, and convenient in operation and maintenance.

Adopts two methods, natural general and forced ventilation, so that the ventilation and cooling are good. The transformer room and the low-voltage room have ventilation ducts, and the exhaust fan has a temperature control device, which can automatically start and shut down according to the set temperature to ensure the full load operation of the transformer.

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

The box variable structure is divided into “product” font and “ item” font.

Main technical parameters 

Box variable structure diagram