Power Systems The surge impedance of a 400 km long overhead transmission line is 420 Ω. For a 200 km length of the same line, the surge impedance will be 400 Ω 210 Ω 840 Ω 420 Ω 400 Ω 210 Ω 840 Ω 420 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Zero voltage regulation is possible only for All of these lagging power factor leading power factor unity power factor All of these lagging power factor leading power factor unity power factor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Find the relation between sub transient (X"), transient (X') and synchronous reactance (X) ? X" < X' > X X" < X' < X X" > X' >X X" > X' < X X" < X' > X X" < X' < X X" > X' >X X" > X' < X ANSWER DOWNLOAD EXAMIANS APP
Power Systems The insulation resistance of the 20 km long underground cable is 8 MΩ. Other things being same, the insulation resistance of 10 km long cable will be 8 MΩ 4 MΩ 32 MΩ 16 MΩ 8 MΩ 4 MΩ 32 MΩ 16 MΩ ANSWER DOWNLOAD EXAMIANS APP
Power Systems The main objectives of power system is/are Reliable power has to be available All of these Cost of electrical energy per KWh is to be minimum Flexible power has to be available. Reliable power has to be available All of these Cost of electrical energy per KWh is to be minimum Flexible power has to be available. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following methods is/are used for reactive or voltage compensation All of these generation excitation control shunt capacitor series capacitor All of these generation excitation control shunt capacitor series capacitor ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS