Power Systems Fault calculations using computer are usually done by either 1 or 2 Y bus method Z bus method None of these either 1 or 2 Y bus method Z bus method None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems The capacitance of an overhead transmission line increases with both 1 and 2 neither 1 nor 2 increase in mutual geometrical mean distance increase in height of conductors above ground both 1 and 2 neither 1 nor 2 increase in mutual geometrical mean distance increase in height of conductors above ground ANSWER DOWNLOAD EXAMIANS APP
Power Systems Attenuation occurs due to both 1 and 3 resistance conductance inductance both 1 and 3 resistance conductance inductance ANSWER DOWNLOAD EXAMIANS APP
Power Systems Lightning arresters are used for All of these protection of equipment from external lightning protection of equipment from short circuits protection of equipment from open circuits All of these protection of equipment from external lightning protection of equipment from short circuits protection of equipment from open circuits 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? 1.375 pu 3.975 pu 0.2 pu 2.4 pu 1.375 pu 3.975 pu 0.2 pu 2.4 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems When reactance grounding is used in network, the voltage between neutral and ground is IN × Xn both 1 and 3 3×IR0 × Xn IR0 × Xn IN × Xn both 1 and 3 3×IR0 × Xn IR0 × Xn ANSWER DOWNLOAD EXAMIANS APP
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