The pu impedance value of an alternator corresponding to base values 13.2 kV and 30 MVA is 0.2 pu. The pu value for the base values 13.8 kV and 50 MVA will be

In case of a 3-phase short circuit in a system, the power fed into the system is

If α is the angle of voltage wave at which an R-L circuit is switched in and Θ is the impedance angle of the R-L circuit, there will be no transient when the circuit is switched in, if

An RLC series circuit remains predominantly inductive

If a synchronous machine is overexcited, it takes lagging VAR from the system when it is operated as a

If a synchronous machine is under excited it takes lagging VAR from the system when it is operated as a

A synchronous machine has higher capacity for

A transformer rated for 500 KVA, 1 KV/0.4 KV has an impedance of 10% and is connected to an infinite bus. The fault level of the transformer is

In a large interconnected power system, consider three buses having short-circuit capacities 1500 MVA, 1200 MVA and 1000 MVA respectively. The voltages of all the buses are 1.0 pu. If a 3-phase fault takes place on bus 2, the change in bus voltage is described as

A power system network with a capacity of 100 MVA has a source impedance of 10% at a point. The fault level at that point is