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A single-phase mid-point full-wave SCR converter with maximum mid-point voltage of Vm volts develops an average output voltage across a resistive load at firing delay angles of 0 and π/2 rad., respectively, as
  • a)
    2Vm/π,Vm
  • b)
    Vm/π,Vm/2π
  • c)
    Vm/2π, Vm
  • d)
    Vm/π, −Vm/2π
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
A single-phase mid-point full-wave SCR converter with maximum mid-poin...
A single-phase mid-point full-wave SCR converter:
In this circuit, two thyristors are used and are connected as shown below

Where,
Vs is the source voltage
Vm is the maximum voltage of the midpoint 
Let α be the firing angle 
V0 is the output voltage
When the thyristors are triggered with a firing angle 0 and π/2 
Then the output waveform will be as follows

 
Let the average output voltage of the circuit be Va
The value of source voltage is Vm sin ωt 

Calculation:
Given,
α1 = 0, α2 = π/2
For the first thyristor, the average output voltage is

Va = 2Vm / π 
For the second thyristor, the average output voltage is

Va = Vm / π 
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Community Answer
A single-phase mid-point full-wave SCR converter with maximum mid-poin...
Explanation:

Given:
Single-phase mid-point full-wave SCR converter
Maximum mid-point voltage: Vm volts
Firing delay angles: 0 and π/2 rad

Output Voltage Calculation:
- The average output voltage for a single-phase mid-point full-wave SCR converter can be calculated using the formula:
Vavg = (2Vm/π) * (1 - cos(α))
where Vavg is the average output voltage and α is the firing delay angle.

At firing delay angle 0:
Vavg = (2Vm/π) * (1 - cos(0))
Vavg = (2Vm/π) * (1 - 1)
Vavg = (2Vm/π) * 0
Vavg = 0

At firing delay angle π/2:
Vavg = (2Vm/π) * (1 - cos(π/2))
Vavg = (2Vm/π) * (1 - 0)
Vavg = (2Vm/π)

Conclusion:
Therefore, the average output voltage across a resistive load at firing delay angles of 0 and π/2 rad is 0 and 2Vm/π volts, respectively. Hence, option 'A' is the correct answer.
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A single-phase mid-point full-wave SCR converter with maximum mid-point voltage of Vm volts develops an average output voltage across a resistive load at firing delay angles of 0 and π/2 rad., respectively, asa)2Vm/π,Vm/πb)Vm/π,Vm/2πc)Vm/2π, Vm/πd)Vm/π, −Vm/2πCorrect answer is option 'A'. Can you explain this answer?
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A single-phase mid-point full-wave SCR converter with maximum mid-point voltage of Vm volts develops an average output voltage across a resistive load at firing delay angles of 0 and π/2 rad., respectively, asa)2Vm/π,Vm/πb)Vm/π,Vm/2πc)Vm/2π, Vm/πd)Vm/π, −Vm/2πCorrect answer is option 'A'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about A single-phase mid-point full-wave SCR converter with maximum mid-point voltage of Vm volts develops an average output voltage across a resistive load at firing delay angles of 0 and π/2 rad., respectively, asa)2Vm/π,Vm/πb)Vm/π,Vm/2πc)Vm/2π, Vm/πd)Vm/π, −Vm/2πCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A single-phase mid-point full-wave SCR converter with maximum mid-point voltage of Vm volts develops an average output voltage across a resistive load at firing delay angles of 0 and π/2 rad., respectively, asa)2Vm/π,Vm/πb)Vm/π,Vm/2πc)Vm/2π, Vm/πd)Vm/π, −Vm/2πCorrect answer is option 'A'. Can you explain this answer?.
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