All Rms Measurements - DEMA 400 Series User Manual

All parameters in the Fundamental Measurements display are described below:
IR: R Phase current value and phase angle
IS: S Phase current value and phase angle
IT: T Phase current value and phase angle
I0: Zero-component current value and phase angle
I1: Correct component current value and phase angle
I2: Negative component current value and phase angle
% (I2 / I1): Error rate
F: Frequency
VRN: R phase Phase-Neutral voltage value and phase angle
VSN: S phase Phase-neutral voltage value and phase angle
VTN: T phase Phase-Neutral voltage value and phase angle
VRS: R-S phases Phase-to-phase voltage value and phase angle
VST: S-T phases Phase-phase voltage value and phase angle
VTR: T-R phases Phase-to-phase voltage value and phase angle
V0: Zero sequence voltage value and phase angle
V1: Positive component voltage value and phase angle
V2: Negative component voltage value and phase angle
4.2.4

All RMS Measurements

RMS (Root Mean Square); measured by taking the square root of the mean of the squares of
the measured values. This value is also called 'Effective value'.
RMS current, voltage phase angles and frequencies are shown as follows:
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