Power Systems Advantages of per unit system is/are No units for any quantity Need of transformation ratio All of these It has units for all quantities No units for any quantity Need of transformation ratio All of these It has units for all quantities ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following effects are associated with transmission line skin effect ferranti effect corona effect All of these skin effect ferranti effect corona effect All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems The value of diversity factor is less than 1 greater than 1 0 1 less than 1 greater than 1 0 1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu? 2.4 pu 1.375 pu 0.2 pu 3.975 pu 2.4 pu 1.375 pu 0.2 pu 3.975 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems The method of neutral grounding affects the negative sequence network All of these positive sequence network zero sequence network negative sequence network All of these positive sequence network zero sequence network ANSWER DOWNLOAD EXAMIANS APP
Power Systems For transmission line which one of the following relation is true? AD - BC = 1 AD - BC = 0 AD + BC = 0 AD - BC = -1 AD - BC = 1 AD - BC = 0 AD + BC = 0 AD - BC = -1 ANSWER DOWNLOAD EXAMIANS APP
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