The second load is delta connectedĪnd has an impedance of 60 - j45 W /phase. The line feeds two balanced three-phase loads that are connected inĪnd has an impedance of 30 + j40 W /phase.
Power factor frequency, f = 400 Hz, P = 4 W Series resonance frequency where reactive power is zero. Plots we see that the circuit changes from capacitive to inductive at the Using the Label command you can add text, lines and arrows to the plot. You can selectīetween different plots by holding down the control key while pressing the Located are displayed on the lower right hand of the screen. Using the cursor command you can move along
Trace add the power factor with the Trace Expression as given by (4). Using Add Trace plot P and Q with the trace expressionsĬontrol, select plot and down key to switch to the lower graph and using Add To change the frequency axis scale to 350 450 Hz. Select Plot control and Add Plot to create two graphs on the Obtain one graph showing real and reactive power supplied by the source andĪnother graph showing power factor as a function of frequency.
Sweep the source frequency from 300 Hz to 500 Hz in steps of 1 Hz and Probe to
Power axis and add the traces with Trace Expressions asĨ*MAX(I(R1))*MAX(I(R1))/2, and 6*MAX(I(R1))*MAX(I(R1))/2 to display P and Q.Ĭircuit shown, use PSpice and Probe to graph the real and reactive powersĭelivered to the circuit as a function of frequency. Power can be expressed as, and the reactive power as Instantaneous power p (t), (in probe for trace expression type V(1)*I(R1)). Repeat to add the Y-axis and the trace for the In Probe plot the instantaneous voltage V(1), and from Plot add Y-axis and The reactor inductance isĪnalysis, set the final time to 16.6667 ms, and the Step Ceiling to 0.01 Circuit shown, use PSpice and Probe to graph the instantaneous voltage, currentĬurrent in the inductor is given to be -10.1826 A.
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