In the form of dry type transformer

___________ in the form of dry type transformer: open type is a commonly used form, its body direct contact with the atmosphere, suitable for dry and clean indoor, ( When the environment temperature is 20 degrees, relative humidity should not be more than 85%) , generally speaking, there are air natural cooling and air cooling two cooling way. 2. Enclosed: device in a closed shell, do not contact directly with the atmosphere, Because poor sealing, cooling condition, mainly used in mining, belongs to the explosion-proof type) 。 3. Pouring type: with epoxy resin or other casting resin as the main insulation, it has simple structure, small volume, suitable for small capacity transformer. This article reprinted from towers light cutting machine