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why transformer rating comes in kva?
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Answer Posted / kothandaraman
Because of transformer there is no lagging and leading current vector with reference to voltage vector. PF means the cosine value of the angle difference between voltage vector and current vector. If current vector lags the voltage vector, it is lagging, for example inductance type of loads, i.e motor. If current vector leads the voltage vector, it is leading, for example capacitance type of loads, i.e. capacitors and synchronous motors.
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