PQ2071-en-GB_V1.3 7/15
13
3-Phase, 3-Wire Power Power Measurements
Note:
When measuring 3 phase / 3-wire systems, hold down the
L1-L2-L3
button for 5 seconds to display
the
3
ϕ
3w
icon. (Press and hold the
L1-L2-L3
button again for 5 seconds to exit the 3 phase/3-wire
mode back to the default 3
Φ
4wire mode).
Connect the Meter as shown in Figure 10.
1.
Insert the Red (L1) and Blue (L3) test leads into the
L1, L3
meter
input terminals and connect
these to 2 separate phases of the circuit under test as shown in Figure 10.
2.
Insert the black test lead into the
COM
input terminal on the meter and connect it to the last
remaining wire of the 3 phase 3-wire system under test.
Note Skip the second (L2) connection.
3.
Set the Rotary switch to the
KW
position.
4. Press
the
L1-L2-L3
button to choose the first phase
L1
(see figure 8). The primary display
shows the kW for phase L1 and the secondary display shows the Phase angle (PG).
5.
Press the
∑
button to save and sum the measured value for
L1
. (see Figure 8)
6.
Move the clamp jaw to the power conductor connected to the L3 voltage test lead.
7. Press
the
L1-L2-L3
button to choose the first phase
L3.
The primary display shows the kW for
phase L3 and the secondary display shows the Phase angle (PG).
8.
Press the
∑
button to save and sum the measured value for
L3
. (figure 8)
9.
After recording the kW power measurement value for the L3 phase, press and Hold the
∑
button
for 1 second
to display the 3 phase sum of
kW
on the main display and
kVA
on the
secondary display. (figure 9)
10.
Press the
▲
button to display the 3 phase sum of
kVAR
on the main display.
11.
Press and Hold the
∑
button
for 1 second
to return to normal operation
For Figure 9: for 3-wire
∑
W = W1 + W3
Figure 10
