Phase 3 Wire System - Amprobe MultiTest 2000 Manual De Usuario

AMPROBE

16.7.2. 3 Phase 3 Wire System

In the electrical systems distributed without neutral, the phase voltages and the power
factors and phase cosϕ lose importance. Only the phase-to-phase voltages, the phase
currents and the total powers remain defined.
Phase 1
Phase 2
Phase 3
In this case the potential of one of the three phases (for example, phase 2) is taken on as
reference potential. The total values of the active, reactive and apparent power are
expressed as sum of the indications of the couples of Wattmeters, VARmeters and
VAmeters.
VAR 1-2
W 1-2
VAR 3-2
W 3-2
MULTITEST2000
Three-phase
Equipment