Power Systems Positive, negative and zero sequence impedances of line are 2,2 and 5 pu respectively. Find self and mutual impedances respectively? 1 and 3 pu 2 and 2 pu 3 and 1 pu 2 and 5 pu 1 and 3 pu 2 and 2 pu 3 and 1 pu 2 and 5 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a pressurized water reactor both B and C. the coolant water boils in the reactor core. water is used at high pressure so that it is available is liquid from at about 280° C. heavy water is used as both coolant and moderator. both B and C. the coolant water boils in the reactor core. water is used at high pressure so that it is available is liquid from at about 280° C. heavy water is used as both coolant and moderator. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 10 MVA generator has reactance of 0.2 pu. Find the new reactance value for 50 MVA base? 5 pu 0.25 pu 1 pu 0.2 pu 5 pu 0.25 pu 1 pu 0.2 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems When is the ferranti effect on long overhead lines experienced? The line is heavily loaded The power factor is unity The line is lightly loaded The line is fully loaded The line is heavily loaded The power factor is unity The line is lightly loaded The line is fully loaded ANSWER DOWNLOAD EXAMIANS APP
Power Systems The rate of rise of restricting voltage depends upon the Inductance of the system. Type of CB. Capacitance of the system. Inductance and capacitance of the system. Inductance of the system. Type of CB. Capacitance of the system. Inductance and capacitance of the system. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following represents the transmission or reflection coefficient of voltage Tv? (Zl = Surge impedance of load, Zs = Surge impedance of line) 2Zl/(Zs + Zl) (Zl - Zs)/(Zs + Zl) (Zs - Zl)/(Zs + Zl) 2Zs/(Zs + Zl) 2Zl/(Zs + Zl) (Zl - Zs)/(Zs + Zl) (Zs - Zl)/(Zs + Zl) 2Zs/(Zs + Zl) ANSWER DOWNLOAD EXAMIANS APP
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