Surge impedance loading of a transmission line can be increased by addition of lumped inductance in parallel both 1 and 3 addition of lumped capacitance in series increasing its voltage level TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following statements is/are true regarding HVDC? All of these HVDC can utilize earth for its return path There is no skin effect in dc line Corona loss is very much reduced in the dc line TRUE ANSWER : ? YOUR ANSWER : ?
A power generating station has a maximum demand of 1000 MW. The annual load factor is 75% and plant capacity factor is 60%. Calculate the reserve capacity? 1250 MW 250 MW 750 MW 500 MW TRUE ANSWER : ? YOUR ANSWER : ?
Offset mho relay is used for the protection of equipment when either 1 or 2 failure of prime mover of the generator None of these loss of excitation of the generator TRUE ANSWER : ? YOUR ANSWER : ?
Making current is a------------ value? RMS average peak value any of the above TRUE ANSWER : ? YOUR ANSWER : ?
For large plants of capacity for more than 15 MW, what type of cooling is used Hydrogen. Liquid. Water. Air. TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is used in thermal plants Rankine cycle Joule cycle All of these Otto cycle TRUE ANSWER : ? YOUR ANSWER : ?
In order to have lower cost of power generaion the load factor should be high but diversity factor should be low the load factor should be low but diversity factor should be high the load factor and diversity factor should be low The load factor and diversity factor should be high TRUE ANSWER : ? YOUR ANSWER : ?
Characteristics of arc quenching medium is/are High dielectric strength High thermal conductivity Non flammable All of these TRUE ANSWER : ? YOUR ANSWER : ?
A 20 MVA generator has inertia constant of 0.5 pu. Find new value for 50 MVA base? 0.5 pu 0.1 pu 0.2 pu 0.4 pu TRUE ANSWER : ? YOUR ANSWER : ?