Calculate the value of the fundamental displacement factor for 1-Φ Full wave semi-converter if the firing angle value is 69°.(a) .48(b) .24(c) .82(d) .88I have been asked this question in semester exam.The question is from Solid-State Switching Circuits topic in section Introduction to Solid-State Switching Circuits of Electric Drives

Calculate the value of the fundamental displacement factor for 1-Φ Fu

1.	Calculate the value of the fundamental displacement factor for 1-Φ Full wave semi-converter if the firing angle value is 69°.(a) .48(b) .24(c) .82(d) .88I have been asked this question in semester exam.The question is from Solid-State Switching Circuits topic in section Introduction to Solid-State Switching Circuits of Electric Drives
Answer» The correct OPTION is (c) .82 Easiest EXPLANATION: FUNDAMENTAL DISPLACEMENT factor is the cosine of angle DIFFERENCE between the fundamental voltage and fundamental current. The fundamental displacement factor for 1-Φ Full wave semi-converter is cos(∝÷2)=cos(34.5°)=.82.

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