Shirokov O. G., Los D. M. Thermal Model of a Power Dry –Type Transformer

The model of the power dry-type transformer is considered in the paper including in contrast to existing models a number of homogeneous bodies: magnetic core, winding, insulation, internal cooling agent and external cooling agent. In addition to this the model describes thermal processes in an unprotected power dry-type transformer and power dry-type transformer placed in the protective housing. Experimental studies confirm the adequacy of the thermal model proposed.