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GATE 2022 : Power Electronics Quiz- 59
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Question 1
For 3ϕ full wave rectifier following Relation hold true for which load. [given α > 60°, α : firing angle].
Question 2
Overlap angle (μ) will increase with quantities:
1. Frequency
2. Firing angle
3. Inductance
4. Voltage applied
5. Type of Battery
Question 3
Consider the following 1-phase semi converter, where load current at 10 A is observed ripple free.
_____ VAR is value of reactive power input to the converter.
Question 4
In a single-phase full converter one of the four SCRs gets open circuited. If the load is RLE with R = 10 Ω, L = 10 mH and E = 100V and firing angle is 45°. What is the average load current in Ampere, assuming supply of 400V, 50 Hz and continuous load current?
Question 5
A half-controlled bridge converter is operating from an rms input voltage of 120 V. Neglecting the voltage drops, what are the mean load voltage at a firing delay angle of 0° and 180° respectively?
Question 6
A diode whose internal resistance is 50 Ω is to supply power to a 500 Ω load from a 230 V(rms) source of supply as shown below. Find the power dissipated in the diode.
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Jun 28ESE & GATE EE