Liquid insulated electrical transformers are used for larger electrical installations that require a higher VA rating. The transformer is liquid insulated, but about 95% of the time the liquid used is mineral oil.
Transformers are used for increasing or decreasing voltage (referred to as ‘step-up’ and ‘step-down’ transformers respectively).
This 3D model shows all major components associated with a typical liquid insulated electrical transformer, these include:
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