CB used for over current protection of thyristor operates when the fault current is__________?
A. of long period
B. of short duration
C. both (A) and (B)
D. neither (A) nor (B)
A. of long period
B. of short duration
C. both (A) and (B)
D. neither (A) nor (B)
A. Identical to line voltage in a VSI
B. Identical to line current in VSI
C. Identical to phase voltage in VSI
D. Identical to phase voltage in CSI
A. By applying a gate pulse and turned off only when current becomes zero
B. And turned off by applying gate pulse
C. By applying a gate pulse and turned off by removing the gate pulse
D. By making current non zero and turned off by making current zero
A. Large number of reactive component
B. Low stress on switch
C. Low stress on capacitor
D. None of these
A. RL.
B. RLC underdamped.
C. RLC overdamped.
D. RLC critically damped
A. 2nd
B. 3rd
C. 5th
D. 7th
A. < latching current but greater than holding current and gate signal is 0.
B. less than holding current.
C. < latching current but greater than holding current and gate signal is present.
D. both (A) and (B).