Power Systems Which of the following statement is/are true?Zn The neutral grounding impedance Zn appears as 3Zn in zero sequence equivalent circuit The neutral grounding impedance Zn appears as Zn in zero sequence equivalent circuit nether 1 nor 2 both 1 and 2 The neutral grounding impedance Zn appears as 3Zn in zero sequence equivalent circuit The neutral grounding impedance Zn appears as Zn in zero sequence equivalent circuit nether 1 nor 2 both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A loss less transmission line has a length of 600 km, find the phase shift of voltage signal? 45° 42° 90° 36° 45° 42° 90° 36° ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following power plants can generate power at unpredictable or uncontrollable time Pulverising unit. Cooling tower. Condenser. Wind turbine. Pulverising unit. Cooling tower. Condenser. Wind turbine. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Electrostatic precipitators in thermal power plants are used for removal of ash from flue gas control flow rate All of these remove moisture from the cole removal of ash from flue gas control flow rate All of these remove moisture from the cole ANSWER DOWNLOAD EXAMIANS APP
Power Systems If transmission line parameters A and B are 0.9∠0° and 200∠90° respectively. Find the shunt reactor required to compensate the ferranti effect? 750 Ω 2000 Ω 1500 Ω 3000 Ω 750 Ω 2000 Ω 1500 Ω 3000 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems What type of back up protection is used for alternators? IDMT relay. Impedance relay. Mho relay. Buchholz relay. IDMT relay. Impedance relay. Mho relay. Buchholz relay. ANSWER DOWNLOAD EXAMIANS APP
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