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• Left rotary field
Testing of phase-sequence direction is
possible from 100V AC voltage (phase to phase)
provided the neutral is earthed.
On making contact with both test electrodes
(probe tips) to two phases of the three-phase
power supply which are connected in clockwise
rotation, a
symbol appears in the LCD Display.
If the rotation is anticlockwise, then a
is displayed. In this case both phases of the unit
should be switched around.
! Note :
Testing the phase rotation always requires a
negative phase rotation test!
To ensure a connect test, it is better to test on a
known source.
! Attention :
Please ensure that the test electrodes (probe tips)
make good contact with two phases of a three-phase
mains while testing the phase rotation. For absolute
determination of a clock-wise phase rotation it is
necessary to make a negative phase rotation test
after changing the phases. The indication
can be affected by unfavorable light conditions, by
protective clothing or in insulated locations.
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