Amprobe DM-4 Power-Quality-Recorder - Manual (Page 47)

14. APPENDIX 1 – RECORDABLE PARAMETERS: SYMBOLS
Negative Q (reactive power) indicates capacitive phase shift. Negative P (real or active power) indi-
cates generation not load and the CTs should be reversed, rotated 180º.
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DM-4 Power Quality Recorder
Symbol Description
V1, V2, V3 RMS value of the voltage of phase 1, phase 2, phase 3 respectively
V12, V23 V31 Value of phase to phase voltages
I1, I2, I3 RMS value of the current of phase 1, phase 2, phase 3 respectively
IN RMS value of the current of the neutral
DC Continuous component of voltage or current
h01 ∏ h51 Harmonic 01 ∏ Harmonic 51 of voltage or current
ThdV Factor of total harmonic distortion of the voltage (see paragraph 14.2)
ThdI Factor of total harmonic distortion of the current (see paragraph 14.2)
Pt, P1, P2, P3 Values of the total active power, of phase 1, phase 2, phase 3 respectively
P12, P32, P13 (only for 3 wires measurement) Value of the power measured by the
Wattmeter. 1-2 and 3-2 respectively (see paragraph 14.3.2)
Qt, Q1, Q2, Q3 Values of the total reactive power, of phase 1, phase 2, phase 3 respectively
Q12, Q32, Q13 (only for 3 wires measurement) Value of the power measured by the
VARmeter 1-2 and 3-2 respectively (see paragraph 14.3.2)
St, S1, S2, S3 Values of the total apparent power, of phase 1, phase 2, phase 3 respectively
S12, S32, S13 (only for 3 wires measurement) Value of the power measured by the
VAmeter 1-2 and 3-2 respectively (see paragraph 14.3.2)
Pft, pf1, pf2, pf3 Value of the total power factors, power factors of phase 1, phase 2, phase 3
respectively
dPft, dpf1, dpf2, dpf3 Values of the total cosΘ, of phase 1, phase 2, phase 3 respectively
Eat, Ea1, Ea2, Ea3 Values of the total active energy, of phase 1, phase 2, phase 3 respectively
Ert, Er1, Er2, Er3
Values of the total inductive reactive Energy, of phase 1, phase 2, phase 3
respectively
-Ert, -Er1, -Er2, -Er3 Values of the total capacitive reactive Energy, of phase 1, phase 2, phase
3 respectively
Est, Es1, Es2, Es3 Values of the total Apparent Energy, of phase 1, phase 2, phase 3 respectively