BARC EE : Power Electronics Quiz-1

The circuit turn-off time for main Thyristor (T_m) is ____ μsec, for the given following commutation circuit.

If the value of snubber capacitor is 0.1 μF and when short-circuited current through it is 10√2 A . Then dv/dt in V/μsec is:

In a thyristor circuit, the angle of conduction is changed by changing:

The input voltage to 3-phase inverter, if load resistance is 10ohm and the variation of thyristor current is same as the below figure.

A 3-ϕ VSI is operated in 180° conduction mode. which of the following statement is true?

Neutral wire connection is:

For the given Δ – γ connected transformer. Diode D₃ converts from

In context with Integral cycle control method in AC voltage controller:

For 600 Hz frequency in output, the B-6 converter must have a input frequency of

In current commutated chopper the auxiliary thyristor stops conducting due to