Which one is more accurate ? single phase impedance or 3 phase impedance measurement ?
Which one is more accurate ? single phase impedance or 3 phase impedance measurement ?
(OP)
Hi guys,
Can we say that single phase measurement of impedance is more accurate than 3 phase measurement ? OK, they are different from each other, but does that mean one of them is more trustable ?
Can we say that single phase measurement of impedance is more accurate than 3 phase measurement ? OK, they are different from each other, but does that mean one of them is more trustable ?






RE: Which one is more accurate ? single phase impedance or 3 phase impedance measurement ?
If you clarify the equipment and purpose I'll bet you get a lot more response. (I'm sure others like prc can tell all about measuring transformer impedance much better than me)
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(2B)+(2B)' ?
RE: Which one is more accurate ? single phase impedance or 3 phase impedance measurement ?
If you're estimating, or modelling, impedance than you're probably assuming a balanced system. So if the estimate doesn't really match up with the actual measured values, it may be because your assumptions are off. Keep in mind the measured values will include positive, negative and zero sequence quantities.