Since the question is asking which of the following is NOT true, we know the answer to be B.Hi Guys,
This is from the same set of problems but I dont understand why this is (B) and not (D) is this an error in the book. If not, please explain.
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Thanks so much for the detailed response on both problems!Since the question is asking which of the following is NOT true, we know the answer to be B.
This is because an inductor's reactance increases with frequently. The inductor is meant to block high frequencies, and the caps are meant to short high frequencies to ground. So this is a low pass filter.
We assume the AC ripple is a high frequency we are trying to filter out.
We know the inductor will increase efficiency, we know it will oppose current with generating heat, and we know it acts as a high reactance to high frequencies, so the answer that remains is not true.
For this type of stuff, probably just use whatever textbook you used for your circuits courses. That should cover filters and possibly MOVs.Thanks so much for the detailed response on both problems!
Do you happen to have any recommendations on books on inductors, frequency, ripples, reactance, etc? You gave a great explanation, but we don’t know what to reference if we ever come across this problem (other than google).
Please forgive my ignorance... but which one these is the delta-wye connection? The H represents the high side, and L represents low side?Short answer: Because that's the zero sequence equivalent circuit for a delta-wye transformer. Since the generator impedance is connected to "L" in the case below, it has no connection in the equivalent circuit.
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Correct. H = high, L = low, N = Neutral.Please forgive my ignorance... but which one these is the delta-wye connection? The H represents the high side, and L represents low side?
My initial understanding was that that (a) is a wye-delta connection? Or can I view these diagrams interchangeably for both the high and low side?Correct. H = high, L = low, N = Neutral.
Delta = Triangle, Wye = Y-shaped one.
So connection (a) in the left-hand table.
You can flip them to match.My initial understanding was that that (a) is a wye-delta connection? Or can I view these diagrams interchangeably for both the high and low side?
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