Why do you think a three wire plus ground feed was used? What's wrong with simple power + ground?
Andrew ----- Original Message ----- From: Jones Beene To: vortex-l@eskimo.com Sent: Saturday, May 25, 2013 2:48 PM Subject: RE: [Vo]:possible error in power-in calculation in Levi et al paper From: Claudio C Fiorini But current #3 was 6.18 A AC, meaning that energy was consumed on that third line. We may assume, that the tension input #3 was left open and that some noise on the hi Z input was read as "6.3 V AC". This has a consequence: the PCE830 computes a wrong total energy. Its value is about 33% too low. Why must we assume this? Looking at the specs of the analyzer, you seem to be making the wrong assumption - and in any event, would not the real power consumed be lower than indicated, not higher? A valid assumption is that this meter does make the proper correction. In fact the specs indicate: - Relation of 3 phases of voltage or asymmetrical current (VUR) - Factor of 3 phases of voltage and asymmetrical current (d0%, d2%) From http://www.industrial-needs.com/technical-data/power-anlayser-PCE-830.htm
