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What is the formula of the phase angle of the secondary load circuit?(a) phase angle of secondary load circuit = tan^-1 * (reactance of the external burden/resistance of the external burden)(b) phase angle of secondary load circuit = tan^-1 * (reactance of the external burden + resistance of the external burden)(c) phase angle of secondary load circuit = tan^-1 * (reactance of the external burden – resistance of the external burden)(d) phase angle of secondary load circuit = tan^-1 * (reactance of the external burden * resistance of the external burden)I got this question by my college director while I was bunking the class.The doubt is from Errors in portion Design of Current Transformers (CT) of Design of Electrical Machines

Answer» RIGHT CHOICE is (a) phase angle of secondary load circuit = TAN^-1 * (reactance of the external burden/resistance of the external burden)

The best I can explain: The reactance and resistance of the external burden is FIRST calculated. Next, the value is taken tan inverse to obtain the phase angle of secondary load circuit.


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