Episode #125 of the Stack Overflow podcast is here. We talk Tilde Club and mechanical keyboards. Listen now

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7

Figure 1. Three-phase currents in a balanced system at various points in time. They always sum to zero. If we could freeze frame the voltage waveform where L1 and L2 are positive maximum and L3 is negative, ... That never happens. Have a look at Figure 1 points (1) and (2) and you will see that only one phase can be maximum at any time and at that time ...


4

rupture /ˈrʌptʃə/ verb 1. (especially of a pipe or container, or bodily part such as an organ or membrane) break or burst suddenly. "if the main artery ruptures he could die" Rupture usually refers to pipes or pressure vessels. I suspect this is a translation issue (but there is no location information in your user profile) and that a better word would be "...


2

When you connect it in a star configuration, the voltage across each of the stator windings will be reduced by \$\sqrt3\$ and correspondingly, the peak mechanical power that could be delivered to a load for a given slip and supply frequency will be lowered significantly. So, for a comparable slip, the current and voltage will both be reduced by about \$\...


1

if each individual current enters via Phases R, Y and B, where does the sum of the three currents (that is Ia+Ib+Ic) flow after meeting at the common point of the three phases? The "sum" current has to be zero because it can't flow anywhere. if I were to keep an ammeter, I can individually measure the value of the three currents right? So how ...


1

There is no simple way to break that loop completely without actual isolation, but if the induced interference is of high-enough frequency you might have an easy work-around. Get a ferrite core with considerably high-frequency losses, and loop one of your USB cables through it several times. That creates a common-mode lossy choke that would present a high-...


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