Hi there - Thanks for the question. Note that these signals were simulated, so the way these phases react may not be how a three-phase system would act. Also note that the voltages of each phase are around 6V-7V, which is not the typical voltage for a three-phase power system. In this demonstration there was a simulated decrease in voltage on phase A and an increase in voltage on phase C. There was no change in voltage simulated in phase B. The fourth channel was actually the phase difference between phase A and C (not A and B as stated in the video). You can tell by looking at each individual channel that phase A had a smaller decrease in amplitude than phase C, which had a greater increase in amplitude, so one would expect to see a small increase in the difference between phase A and phase C, which was indeed the case. Please let us know if you have any additional questions. Thanks!
So... I can see a change in the phase angle height but the amplitude of the rest all seem the same...?
Hi there - Thanks for the question. Note that these signals were simulated, so the way these phases react may not be how a three-phase system would act. Also note that the voltages of each phase are around 6V-7V, which is not the typical voltage for a three-phase power system.
In this demonstration there was a simulated decrease in voltage on phase A and an increase in voltage on phase C. There was no change in voltage simulated in phase B. The fourth channel was actually the phase difference between phase A and C (not A and B as stated in the video). You can tell by looking at each individual channel that phase A had a smaller decrease in amplitude than phase C, which had a greater increase in amplitude, so one would expect to see a small increase in the difference between phase A and phase C, which was indeed the case.
Please let us know if you have any additional questions. Thanks!