Final answer:
The question is about calculating receiving-end voltage and current in a high-voltage power transmission system using the nominal T method, considering the impedance and capacitance of the transmission line.
Step-by-step explanation:
The subject of the student's question relates to the calculation of receiving-end voltage and current in a high-voltage power transmission system using the nominal T method. The particulars of the system include a transmission line operating at 230 kV with a power factor of 90% and an impedance of 12+j20 ohms. Additionally, the transmission line's capacitance is given as 2500 ohms. To find the receiving-end voltage and current, one would typically use complex power calculations, taking into account both the resistive and reactive components of the impedance, as well as the transmission line's capacitance.
To determine the current, we would use the formula I = P / (V * PF), where P is the power in megawatts, V is the voltage in kilovolts, and PF is the power factor. For power losses and additional parameters such as receiving-end voltage, the impedance and capacitance of the line must be considered, all of which can be analyzed within the nominal T model framework.