This lesson covers the concept of efficiency in electrical transformers. It explains how to estimate the efficiency of a transformer by defining a degree of loading factor. The lesson discusses the two main losses in a transformer: the core loss and the copper loss. The lesson further elaborates on how to calculate the efficiency of a transformer at any degree of loading and at a given power factor of the load. It concludes by discussing how to determine the degree of loading at which the efficiency of a transformer will be maximum.
00:44 - Explanation of the rated KVA of the transformers
03:04 - Definition of full load copper loss
04:16 - Discussion on copper loss at X degree of loading
13:00 - Discussion on how to determine the degree of loading at which the efficiency of a transformer will be maximum