buildingblocs
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Conduction Angle in SCR Single Phase Rectifiers
- Thread starter buildingblocs
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- Angle Conduction Phase Scr
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meBigGuy
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considering a single period to be 0 to 360 degrees, the scr turns on at the conduction angle.
buildingblocs
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I thought the SCR is turned on at the firing angle (α).
buildingblocs
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Below are the formulas that I am referring to:
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FireShot Screen Capture #014 - 'Microsoft Word - ECE3051_2008_exam_formula_doc - ECE3051_2008_ex.png -
FireShot Screen Capture #015 - 'Microsoft Word - ECE3051_2008_exam_formula_doc - ECE3051_2008_ex.png -
FireShot Screen Capture #016 - 'Microsoft Word - ECE3051_2008_exam_formula_doc - ECE3051_2008_ex.png
meBigGuy
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OK, my bad. Firing angle is angle at which it starts conducting, conduction angle is angle over which it conducts.
But theta in the above circuit is the voltage/current phase angle caused by the RL circuit. The SCR is fired at α, but conducts beyond ∏ -α because of the inductor field collapsing, represented by theta. So it continues to conduct until ∏ + theta.
But theta in the above circuit is the voltage/current phase angle caused by the RL circuit. The SCR is fired at α, but conducts beyond ∏ -α because of the inductor field collapsing, represented by theta. So it continues to conduct until ∏ + theta.