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Which of the following statement is true regarding End Condenser method used for the performance analysis of medium transmission line?
Line capacitance is lumped at the sending end during the analysis.
Line capacitance is lumped between resistance and Inductance during analysis.
Line capacitance is considered distributed parameter during the analysis.
Line capacitance is lumped at the receiving end during the analysis.
Line capacitance is lumped at the receiving end during the analysis.
The End Condenser method is a simplified technique used for analyzing medium transmission lines (typically 80 km to 250 km in length). It simplifies the analysis by lumping the entire line capacitance at the receiving end of the transmission line.
The End Condenser method is a simplified technique used for analyzing medium transmission lines (typically 80 km to 250 km in length). It simplifies the analysis by lumping the entire line capacitance at the receiving end of the transmission line.
VsтАЛ=AVrтАЛ+BIrтАЛ
IsтАЛ=CVrтАЛ+DIrтАЛ
A=1+2ZYтАЛ┬а(for┬аNominal┬а╧А┬аmethod,┬аnot┬аEnd┬аCondenser)
A=1+ZY,B=Z,C=Y,D=1┬а(for┬аEnd┬аCondenser┬аmethod)
In this method, the distributed shunt capacitance of the line is replaced by a single capacitor concentrated at the receiving end. The transmission line is represented as a series combination of resistance R and inductance L, with a shunt admittance Y connected in parallel across the load at the receiving end. This simplifies the complex ABCD parameter calculation by ignoring the distributed nature of the parameters.
The method is also known as the 'Short Line Approximation with Shunt Capacitance'.
It is less accurate than the Nominal ╧А or Nominal T methods.
It is primarily used for preliminary estimations or short-to-medium length line analysis.
The total shunt admittance Y=j╧ЙC is assumed to be acting only at the load terminals.
Simplified mathematical calculation.
Easy to implement for manual hand calculations of voltage regulation.
Reduces the complexity of the transmission line model.
Lower accuracy compared to Nominal ╧А and Nominal T models.
Does not account for the voltage profile along the length of the conductor.
Overestimates the effects of capacitance at the receiving end.
Quick analysis of medium-length overhead transmission lines.
Educational modeling of power systems for introductory courses.
Medium transmission lines are characterized by lengths between 80 km and 250 km and voltages between 20 kV and 100 kV.
Option A is incorrect because the capacitor is not at the sending end. Option B is incorrect as this would imply a modified circuit topology not recognized in standard transmission line models. Option C is incorrect as the End Condenser method specifically relies on lumping parameters to avoid distributed calculations.
D is correct тАФ The End Condenser method treats the entire shunt capacitance of a medium transmission line as being concentrated or lumped at the receiving end.
For competitive exams, remember that Nominal ╧А method lumps half the capacitance at each end, whereas the End Condenser method puts the full capacitance at the receiving end.
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