Pole mounted substations with measuring type STS are low voltage distribution cabinets. This cabinets are used in the distribution network – for pole mounted substation with power of 400kVA and voltage 20/0.4kV. They are intended for outdoor mounting on foundation or pole. The cabinets can be made of metal or polyester reinforced with glass fiber.
According to the power of the transformer there are 3 types of cabinets: