Category: Power Electronics

A. equal division of voltage across each thyristor
B. equal division of current through each thyristor in parallel
C. equal division of voltage across each thyristor in parallel
D. equal division of current through each thyristor in series

A. 60
B. 70
C. 80
D. 90

A. Positive
B. Negative
C. Zero
D. None of these

A. Two SCR’s in parallel opposition
B. Two SCR’s in series
C. Three SCR’s in series
D. Four SCR’s in series

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. Single phase
B. 3 phase
C. Poly phase
D. Only (b) and (c)

A. low
B. High
C. moderate
D. infinity

A. To limit di / dt of SCR
B. To limit dV / dt of SCR
C. For voltage equalisation
D. Both B and C

A. voltage clamping device.
B. fuse.
C. heat sink.
D. snubber circuit.

A. Large overlapping takes place
B. Small overlapping operation
C. No overlapping operation
D. None of these