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1. |
Which, among the following is the correct expression for star-delta conversion? |
A. | R1=Ra*Rb/(Ra+Rb+Rc), R2=Rb*Rc/(Ra+Rb+Rc), R3=Rc*Ra/(Ra+Rb+Rc)b) |
B. | R1=Ra/(Ra+Rb+Rc), R2=Rb/(Ra+Rb+Rc), Rc=/(Ra+Rb+Rc) |
C. | R1=Ra+Rb+Ra*Rb/Rc, R2=Rc+Rb+Rc*Rb/Ra, R3=Ra+Rc+Ra*Rc/Rb |
D. | R1=Ra*Rb/Rc, R2=Rc*Rb/Ra, R3=Ra*Rc/Rb |
Answer» D. R1=Ra*Rb/Rc, R2=Rc*Rb/Ra, R3=Ra*Rc/Rb | |