Electric Circuit Analysis: Unit IV: Three phase circuits

representation of the phase voltage in the polar and rectangular forms and drawing the phasor diagram

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The rms value of voltage in each phase = Em / √2

(a) REPRESENTATION OF THE PHASE VOLTAGE IN THE POLAR AND RECTANGULAR FORMS AND DRAWING THE PHASOR DIAGRAM

The rms value of voltage in each phase = Em / √2

Let ER, EY, and EB be the rms values of voltages in the phasors R, Y and B respectively.


 

(b) Phasor Diagram


 

(c) The vector sum of

ER, EY, EB = ER + EY + EB

= E(1+j0) + E(-0.5-j0.866) + E(-0.5+j0.866)

= E(1 - 0.5 - j0.866 - 0.5 + j0.866) = 0

Electric Circuit Analysis: Unit IV: Three phase circuits : Tag: : - representation of the phase voltage in the polar and rectangular forms and drawing the phasor diagram

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EE3251 2nd Semester 2021 Regulation | 2nd Semester EEE Dept 2021 Regulation