The efficiencies of transformers compared with that of electric motors of the same power are

Related MCQs

• Two transformers are connected in parallel. These transformers do not have equal percentage impedance. This is likely to result in
• Power transformers are designed to have maximum efficiency at
• Power transformers are generally designed to have maximum efficiency around
• Natural oil cooling is used for transformers upto a rating of
• Two transformers operating in parallel will share the load depending upon their
• What will happen if the transformers working in parallel are not connected with regard to polarity ?
• Ifthe percentage impedances of the two transformers working in parallel are different, then
• Distribution transformers are generally designed for maximum efficiency around
• Star/star transformers work satisfactorily when
• Which of the foJIowing is not a routine test on transformers ?