Power Systems For a lossy transmission line, the characteristic impedance does not depend on The conductivity of conductors. The permittivity of the dielectric separating the conductor. The load terminating the line. The operating frequency of the line. The conductivity of conductors. The permittivity of the dielectric separating the conductor. The load terminating the line. The operating frequency of the line. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The corona loss on a particular system at 50 Hz is 1 kW/km per phase. What is the corona loss at 60 Hz in kW/km per phase? 1 0.89 1.25 1.13 1 0.89 1.25 1.13 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Capacitance voltage transformer ( CVT ) is used to improve the power factor of the transmission. connect instruments on the LT side. none of these. reduce losses in a transmission line. improve the power factor of the transmission. connect instruments on the LT side. none of these. reduce losses in a transmission line. ANSWER DOWNLOAD EXAMIANS APP
Power Systems What is the preferred type of circuit breaker(CB) to be installed in extra high voltage AC system? Air blast CB Sulphur hexafluoride CB Bulk oil type CB Vacuum CB Air blast CB Sulphur hexafluoride CB Bulk oil type CB Vacuum CB ANSWER DOWNLOAD EXAMIANS APP
Power Systems To protect the power transformer ( Y-Y with neutral grounded) against fault, which type of connection do the current transformers have? Y-Y connection Y-Δ connection Δ-Y connection Δ-Δ connection Y-Y connection Y-Δ connection Δ-Y connection Δ-Δ connection ANSWER DOWNLOAD EXAMIANS APP
Power Systems In transmission lines distribution constants are resistance both 1 and 2 inductance and resistance inductance and capacitance resistance both 1 and 2 inductance and resistance inductance and capacitance ANSWER DOWNLOAD EXAMIANS APP
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