Are you working in the testing department of a transformer factory or do you want to buy a transformer ? What tests do you want to carry out?What type of calculation ? There are Routine tests and Type tests for transformers to be conducted at manufacturer's test bench and there are pre commission tests to be carried out at site.
Unless the details are given how can any one give you any help. From the question it appears to be from an examination question paper or a quote from syllabus of engineering study course.
transformer 
Re: transformer
