It is difficult interrupt a capacitive current because

Rated making capacity of a ciruit breaker is equal to

The advantage of slipring induction motor over the squirrel cage induction motor is

slip ring motor have high starting torque compare to squirrel cage motor and have good speed control
also have high over loading capacity, smooth acceleration under heavy loads.

At time t= 0+ , with zero initial condition, which of the following acts as a short circuit?

Which motor is used to start heavy loads?

Torque in d.c motor = k* φ * Ia
In series motor φ α Ia
Tα I²
starting torque of dc series motor is high

If the excitation of a synchronous generator fails, it acts as a

if excitation of synchronous generator fails, operate as induction motor