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A 3 phase full converter has an average output voltage of 200 volt for zero degree firing angle and for resistive load.For a firing angle of 90 degree, the output voltage would be?
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A 3 phase full converter has an average output voltage of 200 volt for...
Answer:
Output voltage at 90-degree firing angle
A 3 phase full converter is a circuit that converts AC voltage to DC voltage. The output voltage of the full converter depends on the firing angle of the thyristors. The firing angle is the delay between the zero crossing of the input voltage and the triggering of the thyristors.
The output voltage of the full converter can be calculated using the following formula:
V_avg = (3V_m/π) * (1 - cosα)
Where,
V_avg = average output voltage
V_m = maximum output voltage
α = firing angle
At zero-degree firing angle, cosα = 1, hence
V_avg = (3V_m/π) * (1 - 1) = (3V_m/π) * 0 = 0
Therefore, V_m = 200V
At 90-degree firing angle, cosα = 0, hence
V_avg = (3V_m/π) * (1 - 0) = (3V_m/π) * 1 = 3V_m/π
V_avg = 200V
3V_m/π = 200V
V_m = (π/3) * 200V
V_m = 209.44V
Therefore, the output voltage at 90-degree firing angle is 209.44V.
The output voltage of a 3 phase full converter depends on the firing angle of the thyristors. At zero-degree firing angle, the output voltage is zero, and at 90-degree firing angle, the output voltage is (π/3) times the average output voltage at zero-degree firing angle.
Given
- Average output voltage at zero-degree firing angle = 200V
- Resistive load
To find
Output voltage at 90-degree firing angle
Solution
A 3 phase full converter is a circuit that converts AC voltage to DC voltage. The output voltage of the full converter depends on the firing angle of the thyristors. The firing angle is the delay between the zero crossing of the input voltage and the triggering of the thyristors.
The output voltage of the full converter can be calculated using the following formula:
V_avg = (3V_m/π) * (1 - cosα)
Where,
V_avg = average output voltage
V_m = maximum output voltage
α = firing angle
At zero-degree firing angle, cosα = 1, hence
V_avg = (3V_m/π) * (1 - 1) = (3V_m/π) * 0 = 0
Therefore, V_m = 200V
At 90-degree firing angle, cosα = 0, hence
V_avg = (3V_m/π) * (1 - 0) = (3V_m/π) * 1 = 3V_m/π
V_avg = 200V
3V_m/π = 200V
V_m = (π/3) * 200V
V_m = 209.44V
Therefore, the output voltage at 90-degree firing angle is 209.44V.
Conclusion
The output voltage of a 3 phase full converter depends on the firing angle of the thyristors. At zero-degree firing angle, the output voltage is zero, and at 90-degree firing angle, the output voltage is (π/3) times the average output voltage at zero-degree firing angle.
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A 3 phase full converter has an average output voltage of 200 volt for zero degree firing angle and for resistive load.For a firing angle of 90 degree, the output voltage would be?
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A 3 phase full converter has an average output voltage of 200 volt for zero degree firing angle and for resistive load.For a firing angle of 90 degree, the output voltage would be? 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 3 phase full converter has an average output voltage of 200 volt for zero degree firing angle and for resistive load.For a firing angle of 90 degree, the output voltage would be? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 3 phase full converter has an average output voltage of 200 volt for zero degree firing angle and for resistive load.For a firing angle of 90 degree, the output voltage would be?.
A 3 phase full converter has an average output voltage of 200 volt for zero degree firing angle and for resistive load.For a firing angle of 90 degree, the output voltage would be? 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 3 phase full converter has an average output voltage of 200 volt for zero degree firing angle and for resistive load.For a firing angle of 90 degree, the output voltage would be? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 3 phase full converter has an average output voltage of 200 volt for zero degree firing angle and for resistive load.For a firing angle of 90 degree, the output voltage would be?.
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