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L1-3-2 in the right top corner, and it will beep to warn of an incorrect phase sequence.
Phase Sequence of a 3 Phase System
Press this button to display the phase diagram.
In this mode, the analyzer also detects the phase sequence. If the voltage of L1, L2, and L3 is not
connected in the correct sequence, the analyzer will show L1-3-2 in the right top corner, and it will beep to
warn of an incorrect phase sequence.
Balanced and Unbalanced 3 Phase (3P3W, 3P4W) Power Source System
In order to check if a system is balanced, press this button to display the phase diagram
along with the VUR.
Balanced System
If a 3 phase power source system is balanced, the parameters should be as follows:
V1 = V2 = V3
V12 = V23 = V31
The phase angle of V2 = -120; the phase angle of V3 = 120
Vn (voltage of neutral with respect to ground) = 0V
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PQ3350 V5.2 11/10
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