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 E_R, E_Y, and E_B be the rms values of voltages in the phasors R, Y and B respectively.

(b) Phasor Diagram

(c) The vector sum of

E_R, E_Y, E_B = E_R + E_Y + E_B

= 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

Home | Department: EEE Department | Ist Year | Subject: Electric Circuit Analysis |

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Electric Circuit Analysis: Unit IV: Three phase circuits

Generation of 3 Phase Voltage

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

Phase sequence - Three phase circuits

Interconnection of the three phases - 1.Star or Y, 2.Delta or Mesh Connection

Balanced star connected load - Three phase circuits

Balanced delta connected load - Three phase circuits

Worked examples - Balanced star, delta connected load | Three phase circuits

Three phase power measurement - two-watt meter method

Worked examples - Three phase power measurement by 2 wattmeter method

Additional solved problems - Three phase circuits | Electric Circuit Analysis

Points to remember in three phase circuits - Electric Circuit Analysis

Exercise - Three phase circuits | Electric Circuit Analysis

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