Shunt reactors?

Question

What is the difference to put a shunt reactor at the begining or at the end of a transmission line?

Answer 1

This is for Ferranti Effect. Generally the receiving end voltage should be less than sending end voltage. But at no load condition or when the load is very small the receiving end voltage is higher than the sending end voltage the reason is the presence of capacitace between line and earth. this capacitance value is constant. The line voltage also constant aonly the current is changing as depends on load. so at no load current is small but capacitance is parallel with the line, and so current through capacitance is same it is not depend on load.this capacitace voltage has major role at no load and thats why the reciving end voltage is higher than sending end voltage. To overcome this we are using Shunt reactor, as it is an inductor and properties opposite to capacitanc(i.e. leading and lagging ) it comensates the capacitance effect. For more and vector diagram , mathematical analysis ref to any power system book
one ref is Power System by C.L. Wadhwa

Answer 2

In general terms, with a one-way transmission line, impedance is added at the near end to match the transmission device to the line impedance, and at the far end to match the receiver to the line impedance. The ref. discusses line terminations in high-speed digital applications.