Phasors

The shields are always in the red, phasors dont work, and warp speed is down. ❋ Unknown (2008)

It is the “real” power power available to do work that is the real component of the resultant phasors, and the reactive power is the imaginary component of the resultant phasors. ❋ Unknown (2006)

You could point out to the students that electrical engineers use complex-plane vectors impedance vectors and rotating phasors in the analysis of AC circuits, even though the engineers know that these vectors bear no direct physical relationship to the AC circuits. ❋ Unknown (2006)

Almost anyone who has had to work with rotating machinery will immediately understand why phasors do in fact bear a direct physical relationship with the AC circuits being described. ❋ Unknown (2006)

Rotating machinery theory this is a senior or graduate level course even explains why the phasors are directly related to the AC response. ❋ Unknown (2006)

Since then I have switched to “phasors,” which are vectors that rotate around the origin in the complex plane, because their lack of a direct physical relationship to AC circuits is much more obvious than that of imaginary numbers. ❋ Unknown (2006)

If the loads are true 3 phase, then by KCL the phase current phasors will add up to zero and hence no neutral current. ❋ Zan (2010)

The first method shown in Figure 1 maintains a constant torque (all phasors the same length) throughout rotor rotation, by constantly varying the current in both windings. ❋ Unknown (2009)

Note in particular the thicker phasors on the associated diagram at steps ½ (45 degrees), 1½ (315 degrees), 2½ (225 degrees) and 3½ (135 degrees). ❋ Unknown (2009)

Thevenin and Nortan's, maximum power transfer, wye-delta transformation, steady state sinusoidal analysis using phasors, fourier series, linear constant coefficient differential and difference equations; time domain analysis of simple RLC circuits. laplace and Z transforms: frequency domain analysis of RLC circuits, convolution,2-port network parameters, driving point and transfer functions, state equation for networks. ❋ Unknown (2009)