Conceptually, I want to agree with those conclusions but I’ve recently done a similar experiment and am running into some issues that perhaps someone can rectify. Using an LRC meter, I measured the inductance of the high voltage winding of a 2kva control transformer. The inductance was 0.6 Henry. Using the 2πfL formula, that gives an reactive impedance of 2π(60)(.6) = 226ohms. The winding resistance was 2 ohms, making for a total impedance of 228ohms. The applied voltage was 120V rms. Using rearranged ohms law (i= v/Z) that should yield a excitation current of 120V/228ohms = 0.5amps. However, when I measure excitation current, the actual measurement is an order of magnitude lower (0.04 amps). To be that low, the actual impedance must be something closer to 3000ohms instead of the 228 ohms that was empirically measured. Assuming both LRC and ammeter are correct, does anyone have thoughts on this discrepancy?
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Conceptually, I want to agree with those conclusions but I’ve recently done a similar experiment and am running into some issues that perhaps someone can rectify.
Using an LRC meter, I measured the inductance of the high voltage winding of a 2kva control transformer. The inductance was 0.6 Henry. Using the 2πfL formula, that gives an reactive impedance of 2π(60)(.6) = 226ohms. The winding resistance was 2 ohms, making for a total impedance of 228ohms.
The applied voltage was 120V rms. Using rearranged ohms law (i= v/Z) that should yield a excitation current of 120V/228ohms = 0.5amps. However, when I measure excitation current, the actual measurement is an order of magnitude lower (0.04 amps).
To be that low, the actual impedance must be something closer to 3000ohms instead of the 228 ohms that was empirically measured.
Assuming both LRC and ammeter are correct, does anyone have thoughts on this discrepancy?
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What's the difference between complex and scalar? I thought they were the same thing
@@MegavoltHomeschool It was just from the ohm's law for AC equation at 1:36, that the quantities are expressed in complex, not scalar form.