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1. |
A current transformer (CT) of turns ratio 1 : 248 is rated as 1000 / 4 A, 20 VA. The core loss and magnetizing components of the primary current are 4 A and 8 A under rated conditions, the phase angle error for the rated burden and the rated secondary current at 0.8 power factor lagging is |
A. | \(\frac 1 {496} rad\) |
B. | \(\frac 1 {248} rad\) |
C. | \(\frac 1 {124} rad\) |
D. | \(\frac 1 {62} rad\) |
Answer» C. \(\frac 1 {124} rad\) | |