Under over voltage condition impedance offered by the voltage clamg device is__________? A. low B. High C. moderate D. infinity

The latching current of GTO should be of order A. 100 mAB. 500 mA C. 1 A D. 2 A

The maximum di/dt in a SCR is____________? A. Directly proportional to supply voltage B. Directly proportional to inductance in the circuit C. Inversely proportional to supply voltageD. Both A and B

Example of a voltage clamg device______________? A. fast acting fuse B. snubber circuitC. metal oxide varistor D. aluminium block

Switching frequency of SITH is____________? A. 5 KHz B. 10 KHz C. 60 KHzD. 100 KHz

Practical way of obtaining static voltage equalization in series connected SCRs is by the use of____________? A. One resistor across the stringB. Resistors of the same value across each SCR C. Resistors of different values across each SCR D. One…

Thyristor can be protected from over voltages by using____________? A. voltage clamg device. B. fuse. C. heat sink. D. snubber circuit.

Thyristor can be protected from over voltages by using A. 23 mA. B. 40 mA.C. 10 mA. D. 60 mA.

A single phase full bridge inverter can operate in load commutation mode in case load consists of____________? A. RL.B. RLC underdamped. C. RLC overdamped. D. RLC critically damped.

The function of snubber circuit connected across the SCR is to___________? A. Suppress dV / dt. B. Increase dV / dt. C. Decrease dV / dt. D. Decrease di / dt.