Which losses can be identified from Swinburne’s test?(a) No-load core loss(b) Windage and friction loss(c) No-load and windage and friction loss(d) Stray load lossI got this question in an internship interview.The origin of the question is Swinburne’s Test in chapter Efficiency and Testing of DC Machines

Which losses can be identified from Swinburne’s test?(a) No-load cor

1.	Which losses can be identified from Swinburne’s test?(a) No-load core loss(b) Windage and friction loss(c) No-load and windage and friction loss(d) Stray load lossI got this question in an internship interview.The origin of the question is Swinburne’s Test in chapter Efficiency and Testing of DC Machines
Answer» Correct OPTION is (C) No-load and windage and friction loss To ELABORATE: We get total rotational losses occurring in a machine, which are equal to no-load core losses (iron + copper) and windage and friction losses. We also get SHUNT field losses and VARIABLE loss occurring in armature resistance.

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