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How many thyristors are there in a threephase full wave controller?
In a single Phase full converter with resistive load and firing angle α. The load current is nonzero and zero, respectively for
3 phase, 6 pulse converter shown in the figure, the load is taking ripple free constant current of 10 A. The average output voltage of the converter is 150 V at a firing angle α = 30º. Find the value of line resistance R in ohms. (Up to two decimal places)
In a dual converter, if the firing angle of one bridge is 30°, then the firing angle of second bridge is ______.
A delayed fullwave rectified sinusoidal current has an average value equal to half its maximum value. Find the delay angle θ.
A delayed fullwave rectified sinusoidal current has an average value equal to one – third its maximum value. Find the delay angle.
Distortion factor (DF) and total harmonic distortion (THD) are related by.
A freewheeling diode in a phasecontrolled rectifier:
A singlephase, fullbridge diode rectifier fed from a 230 V, 50 Hz sinusoidal source supplies a series combination of finite resistance, R, and a very large inductance, L. The two most dominant frequency components in the source current are:
A sixpulse thyristor bridge rectifier is connected to a balanced threephase, 50 Hz AC source. Assuming that the DC output current of the rectifier is constant, the lowest harmonic component in the AC input current is
5 videos40 docs66 tests

5 videos40 docs66 tests
