In the circuit shown, the phase currents are
$$ \begin{aligned} & I_A=572.812+j 50.115 \mathrm{~A} \\ & I_B=-254.525-j 459.175 \mathrm{~A} \\ & I_C=-207.083+j 444.091 \mathrm{~A} \end{aligned} $$
Given that the CTs are ideal with no saturation, and the turns ratio of the Main CT is $300: 5$ and that of the Auxiliary Transformer $(Y n \Delta)$ is $2: 1$ on every phase, the value of $I_{A R}$, rounded off to three decimal places, is
The operating characteristic of a reactance relay is given by $X \leq 1 \Omega$, where $X$ is the reactance calculated by the relay. Its operating characteristic in the admittance plane (G-B plane, where G and B denote conductance and sustenance, respectively, expressed in $\mho$ ) is given by:
The $Y$ bus representation of this transformation is
For the balanced 3-phase transmission line shown, consider the following cases:
Case-1: $\left|V_1\right|=1.1$ p.u., $\left|V_2\right|=0.9$ p.u., $Z=0.75 \angle 0^{\circ}$ p.u. and $\theta_{12}=\theta_1-\theta_2=0^{\circ}$
Case-2 : $\left|V_1\right|=1.1$ p.u., $\left|V_2\right|=0.9$ p.u., $Z=0.75 \angle 90^{\circ}$ p.u. and $\theta_{12}=\theta_1-\theta_2=90^{\circ}$
Which of the following statements is/are correct about real power loss and reactive power loss in the line?
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