Transposition -of the-transmission line is done to reduce : - a) line losses b) capacitive -effect  c) disturbance to nearby communication circuits d) effect of surge voltages induced on the line

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Transposition -of the-transmission line is done to reduce : - disturbance to nearby communication circuits

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Description : When the load on a transmission line is equal to the surge impedance loading  (a) The receiving end voltage is less than the sending end voltage  (b) The sending end voltage is less than the ... is more than the sending end voltage  (d) The receiving end voltage equal to the sending end voltage 

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Last Answer : The corona loss of a 3-phase transmission line is 100 kW at 60 kV/phase and 25 kW at 50 kV/phase. The disruptive critical voltage is 40 kV

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Description : The impedance Z offered by transmission line for a travelling wave which damps out the low frequency oscillation rapidly is also called

Last Answer : The impedance Z offered by transmission line for a travelling wave which damps out the low frequency oscillation rapidly is also called Both surge and natural impedances.

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Last Answer : 150km because nominal π and T method are used in medium transmission lines . and these lines ranges from 80-240 km

Description : A three phase transmission line delivers a load of 5 MW at 0.8 power factor lagging. Resistance of each conductor is 0.5 ohm / km. Receiving end voltage is 33 kV. If the line loss is not to exceed 10%, determine the length of the line.  (A) 7 km (B) 27.9 km (C) 56.8 km (D) 13.9 km

Last Answer : B

Description : what is mean by medium transmission line ?

Last Answer : The transmission line which have length between 80 km to 250 km is known as medium transmission line.

Description : what is mean by short transmission line ?

Last Answer : The transmission lines which have length less than 80 km is known as short transmission lines.

Description : what is mean by long transmission line ?

Last Answer : The transmission line which have length more than 250 km are known as long transmission lines.