How do you stop surge impedance loading?

Since surge impedance is directly proportional to inductance and inversely proportional to the capacitance. Hence the value of surge impedance can be reduced either by increasing capacitor (C) of line or by decreasing inductance (L) of line.

What is surge impedance loading in transmission line?

Surge Impedance Loading is the connected load in transmission line for which reactive power generated is equal to reactive power consumed i.e. the flow of reactive power is zero. There is an exact balance between reactive power generation and consumption.

What is the primary reason for terminating a transmission line in an impedance equal to the characteristic impedance of the line?

The input impedance of an infinite line is equal to the characteristic impedance since the transmitted wave is never reflected back from the end.

When a transmission line is terminated through a resistance is equal to surge impedance?

When the line is terminated by surge impedance the receiving end voltage is equal to the sending end voltage and this case is called flat voltage profile.

What is surge impedance loading or natural loading?

The load at which the inductive and capacitive reactive volt-amperes are equal and opposite, such load is called surge impedance load. It is also called natural load of the transmission line because power is not dissipated in transmission.

Which of the following is correct when the transmission line is terminated by a characteristic impedance?

Explanation: When a line is terminated with a impedance other the characteristic impedance of the transmission line, It results in reflection of waves from the load end of the transmission line hence resulting in wave reflection in the transmission line.

What is the range of surge impedance for an overhead transmission line?

about 400 ohms
An impedance which renders the line as the infinite line is known as surge impedance. It has a value of about 400 ohms and phase angle varying from 0 to -15 degrees for overhead lines and around 40 ohms for underground cables.

When transmission line is terminated matched load then SWR will be?

The SWR is a measure of the depth of those standing waves and is, therefore, a measure of the matching of the load to the transmission line. A matched load would result in an SWR of 1:1 implying no reflected wave.

What is surge impedance loading (SIL) in transmission lines?

SIL is defined as the maximum load (at unity power factor) that can be delivered by the transmission line when the loads terminate with the value equal to surge impedance (Zs) of line. Simply if any line terminates with surge impedance then the corresponding loading in MW is known as Surge Impedance Loading (SIL). Its unit is MW.

How do you increase surge impedance in a circuit?

Surge Impedance Loading (SIL) can be increased by reducing the Surge impedance of the line. From the above expression Z o can be decreased by either increasing the capacitance (C) of the line or by reducing the inductance (L) of the line.

What happens to reactive power during surge impedance loading of line?

During surge impedance loading of the line whatever reactive power losses take place in the series reactance of the line. This reactive power is compensated or produced by the shunt capacitance of the line and net reactive power flow in the line is zero. The table below shows surge impedance and SIL for various voltage levels.

What is sursurge impedance loading?

Surge Impedance Loading is the connected load in transmission line for which reactive power generated is equal to reactive power consumed i.e. the flow of reactive power is zero.