Chauvin Arnoux F09 - 3.11 Phase Order Indication

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- Acceptable amplitude imbalance rate: 20%
- Acceptable voltage harmonic distortion: 10%
■■
■■
■ Running of phase rotation direction detection
sequence
Note 1:
In the following table, display of the symbol " " refers
systematically to the beginning of sequence
Note 2:
The sequence of the following table is described using:
- L1 on terminal “COM”
- L2 then L3 on terminal “+”
The same result is obtained if:
- L2 on terminal “COM” , L3 then L1 on terminal “+”
or:
- L3 on terminal “COM” , L1 then L2 on terminal “+”
Note 3:
The measurement principle is based on a certain frequency
stability and practically sinusoidal signals (THD < 10%).
This excludes in particular measurement on power
generators whose spin stabilisation system is too weak to
ensure adequate frequency stability.
Action Display Comments
Switch on Enter the function
the position
1
2
3
Press rEF The unit is ready to detect
the yellow key the reference period
Cable connected after 10 seconds maximum
black on L1 and result is one of the 3 following
contact displays
red cable on L2 opposite:
Err V (2 s) then → if voltage < 50 V
Err V (2 s) then → if nominal freq. ≠ 50 Hz or 60 Hz
rEF OK → if reference period correct
Red cable contact The unit determines the period
on L3 (less than measurement, the following
10 seconds after messages may be displayed
leaving L2) (after 10 s max) :
MEAS → determination of period
for measurement in progress
→ contact on L3 a was performed
too late (more than 10 s
after display rEF OK)
Err V (2 s) then → voltage incorrect
Err V (2 s) then → frequency incorrect
Err → determination of phase
direction impossible
1.2.3 → direct direction of phase
rotation
3.2.1 → reverse direction of phase
rotation
Press yellow key Return to beginning of sequence
(valid at all times in the
sequence)