a. Reversal of power can be controlled by firing angle
b. Very good dynamic behavior
c. They can link two AC system operating unsynchronized
d. All of these
Related Mcqs:
- For swept frequency measurements, the input impedance of the mismatched transmission line would vary with frequency as the electrical length of the transmission line would
A. Decrease with frequency
B. Remains same with change in frequency
C. Increase with frequency
D. Either A. or B. - In EMC signal, the source delivers maximum power to the input of transmission line when the transmission line input impedance
A. Is equal to the source resistance
B. Greater than the source resistance
C. Smaller than the source resistance
D. None of these - The square wave operation of 3 phase VSI lines contains the harmonics. The amplitudes are____________?
A. Directly proportional to their harmonic order
B. Inversely proportional to their harmonic order
C. Not related to their harmonic order
D. None of these - IGBT combines the advantages of_____________?
A. BJTs and SITs
B. BJTs and MOSFETs
C. SITs and MOSFETs
D. None of these - Advantages of Cuk converter is / are_____________?
A. Large number of reactive component
B. Low stress on switch
C. Low stress on capacitor
D. None of these - 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 voltage
D. Both A and B - Thermal voltage VT can be given by____________?
A. Kq/T
B. KT/q
C. qT/K
D. (K2/q)(T + 1/T – 1) - For series connected SCR’s dynamic equalising circuit consists of___________?
A. R and C in series but with diode across C
B. R and C in series but with diode across R
C. Series R and diode with C across R
D. Series R and diode with C across R - In a 3 phase bridge rectifier the ripple frequency is _____________?
A. Equal to the input frequency
B. Twice the input frequency
C. Three times the input frequency
D. Six times the input frequency - Very large values of modulation index (greater than 3.24) lead to___________?
A. Square AC output voltage
B. Sine AC output voltage
C. Triangular AC output voltage
D. Trapezoidal AC output voltage
