(Solved): A Coupling Capacitor Voltage Transformer (CCVT) is connected to a 60Hz,138Y/79.7kV transmission ...

A Coupling Capacitor Voltage Transformer (CCVT) is connected to a $$60\mathrm{Hz},138\mathrm{Y}/79.7\mathrm{kV}$$ transmission line in an arrangement shown in the figure below to monitor the line-to-ground voltage. The value of $$\mathrm{Cl}$$ is $$0.0047?\mathrm{F}$$; the transformer connected across $$\mathrm{C}2$$ is rated 2,401.8:120 V. Ignoring any loads on the secondary of the transformer, A. What is the value of $$\mathrm{C}2$$ ? B. What is the value of the tuning inductance, $$L$$. C. Assume that the transformer is ideal, i.e., there is no magnetizing branch or series impedance in the transformer model. Using literal notation for the capacitive reactance of the two capacitors, the inductive reactance of the inductor, the metering burden, and the metered voltage at the secondary of the transformer, derive an expression for the voltage at the high voltage input to the CCVT. D. Validate the expression derived in Part $$\mathrm{C}$$ above by using the actual component values under the assumption that there is no burden $$\left({\mathrm{R}}_{\mathrm{B}}=?\right)$$ with the measured output voltage equal to $$120\mathrm{V}$$. (Hint: The voltage under these conditions should be $$79.7\mathrm{kV}$$ ) E. What would the input voltage be if the actual metering burden is $$300?$$ and the measured output voltage is $$123.5\mathrm{V}$$ ? F. Regarding the blocking inductor that grounds the series capacitors, are there any concerns regarding the determination of this inductance?