48
3.12. DIRECTION OF PHASE ROTATION
This measurement is made on a three-phase network. It is used to check the phase order of the network.
3.12.1. DESCRIPTION OF THE MEASUREMENT PRINCIPLE
The device checks that the three signals are at the same frequency, then compares the phases to determine their order (direct or
reverse direction).
3.12.2. MAKING A MEASUREMENT
Set the switch to
.
SET UP
OFF
Connect the measuring cable terminated by 3 leads to the device and to each of the phases:
the red to L1, the blue to L2, and the green to L3.
L3
PE
N
L1
L2
There are no parameters to program before starting the measurement.
TEST
Press the
TEST
button once to start the measurement and a second time to stop it.
3.12.3. READING OF THE RESULT
PHASE SEQUENCE
03
/
02
/
2014 10
:
47
50 . 1 Hz
30 mA
10 %
397 V
396 V
398 V
The + sign indicates a forward
direction and the - sign a reverse
direction.
Voltages between the phases.
The
symbol indicates a forward
direction and the
symbol a re-
verse direction.
red
green
blue
