Errors in a C.T. can be minimised by _________(a) making use of laminations(b) having low reactance(c) increasing the secondary winding turns(d) decreasing the primary winding turnsI have been asked this question in an interview.The question is from Errors in Current Transformers in section Extension of Instrument Ranges of Electrical Measurements

Errors in a C.T. can be minimised by _________(a) making use of lamina

1.	Errors in a C.T. can be minimised by _________(a) making use of laminations(b) having low reactance(c) increasing the secondary winding turns(d) decreasing the primary winding turnsI have been asked this question in an interview.The question is from Errors in Current Transformers in section Extension of Instrument Ranges of Electrical Measurements
Answer» Correct choice is (b) having low reactance The explanation: The excitation CURRENT Io can be minimised thus eliminating the errors in a C.T. by minimising the iron loss. The core MUST have a low iron loss and a MINIMUM VALUE of LEAKAGE reactance.

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