A. low
B. High
C. moderate
D. infinity
A. 100 mA
B. 500 mA
C. 1 A
D. 2 A
The latching current of GTO should be of order Read More »
Power Electronics A. Directly proportional to supply voltage
B. Directly proportional to inductance in the circuit
C. Inversely proportional to supply voltage
D. Both A and B
The maximum di/dt in a SCR is____________? Read More »
Power Electronics A. fast acting fuse
B. snubber circuit
C. metal oxide varistor
D. aluminium block
Example of a voltage clamping device______________? Read More »
Power Electronics A. 5 KHz
B. 10 KHz
C. 60 KHz
D. 100 KHz
Switching frequency of SITH is____________? Read More »
Power Electronics A. One resistor across the string
B. Resistors of the same value across each SCR
C. Resistors of different values across each SCR
D. One resistor in series with each SCR
A. voltage clamg device.
B. fuse.
C. heat sink.
D. snubber circuit.
Thyristor can be protected from over voltages by using____________? Read More »
Power Electronics A. 23 mA.
B. 40 mA.
C. 10 mA.
D. 60 mA.
Thyristor can be protected from over voltages by using Read More »
Power Electronics A. RL.
B. RLC underdamped.
C. RLC overdamped.
D. RLC critically damped.
A. Suppress dV / dt.
B. Increase dV / dt.
C. Decrease dV / dt.
D. Decrease di / dt.
The function of snubber circuit connected across the SCR is to___________? Read More »
Power Electronics