Advantages of modular box-type substation

Compact structure, small size, typically only covers about 3.5m⒉.

Due to the high pressure in control and protection of electrical transformer cabinets, no exposed live parts, safe and reliable. Excellent performance with energy saving type transformers, energy-saving effect.

Because the transformer cooling surface state in the outdoor natural cooling, cooling conditions, it is generally box-type transformer capacity of up to 1600kVA and below.

May be needed as a terminal substation substation or ring.

Inadequate modular box-type substation

Due to high voltage switches in transformer cabinets, and therefore no obvious break point and earthing switches. (Points, closing state is not intuitively obvious)

Backup protection for high-voltage fuse in the transformer cabinets, the relative difficulty replacement fuse blows.

Combined total box transformer core and control equipment in the same tank, due to load switching operation will generate free carbon, frequent operation has the potential to decrease the transformer insulation.

Because transformer me change shell as a whole, so adjust transformer capacity (capacity increase or decrease volume) is more difficult to replace the transformer.