Displaying The Predicted State For A 3-Phase Circuit - Hioki PD3259-90 Instruction Manual

Displaying the Predicted State for a 3-phase Circuit

4.4 Displaying the Predicted State for a
3-phase Circuit
When measuring a 3-phase circuit with Δ wiring in which one phase
is grounded, the PD3259 can automatically predict the grounded
phase. In addition, the instrument can predict if one line of the
3-phase circuit is missing. The results are shown using icons on the
display (These functions are only used in Japan.)
3-phase/3-wire
Proper identification of the ground phase or missing phase is not
guaranteed. Results may be inaccurate if the circuit incorporates
complex wiring or if the distance from the point of measurement
to the break in the wire meets certain criteria.
44
Ground phase prediction
If the S phase is grounded, the display
will indicate
if the R phase is grounded, the display
will indicate
the T phase is grounded, the display
will indicate
displays are used if 1/2/3 numbering is
used for the phase display.)
Missing phase prediction
If the instrument predicts that one wire of
the 3-phase circuit is missing, the icon
for the phase predicted to be missing
( or
underneath . Similarly,
underneath
underneath
) will not be displayed.
, and if
. (Similar