In a 3 phase half wave rectifier, when firing angle is less than 90 degree, then the average dc output voltage becomes__________________?
A. Positive
B. Negative
C. Zero
D. None of these
A. Positive
B. Negative
C. Zero
D. None of these
A. 1 KVA
B. 2 KVA
C. 500 VA
D. 100 KVA
A. Continuous signal
B. Large isolating pulse transformer
C. A train of pulses
D. None of these
A. Electric traction
B. Electric vehicles
C. Machine tools
D. All of these
A. Filled controlled diode
B. Filled controlled rectifier
C. Silicon controlled rectifier
D. None of these
A. Line integrated stabilization network
B. Line impedance stabilization network
C. Line integrated stored network
D. Laser integrated stabilization networking
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