Measurements and calculations, Nv v, Ni i – Electro-Voice 1252 User Manual
Page 30: Nv v v, N v v
e
Electro Industries/GaugeTech
Doc # E107706 V1.25
2-6
2.6: Measurements and Calculations
The Nexus 1250/1252 Meter measures many different power parameters. The following is a list of the
formulas used to conduct calculations with samples for Wye and Delta services.
Samples for Wye: van, vbn, vcn, ia, ib, ic, in
Samples for Delta: vab, vbc, vca, ia, ib, ic
Q
Root Mean Square (RMS) of Phase to Neutral Voltages: n = number of samples
For Wye: x = an, bn, cn
Q
Root Mean Square (RMS) of Currents: n = number of samples
For Wye: x=a, b, c, n
For Delta: x = a, b, c
Q
Root Mean Square (RMS) of Phase to Phase Voltages: n = number of samples
For Wye: x, y= an, bn or bn, cn or cn, an
For Delta: xy = ab, bc, ca
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