3.6.6 Dc Power networks
3.6.6.1 Dc 2-Wire
For DC 2- Wire measurements:
■
Connect the terminal N test lead to the common
conductor
■
Connect the terminal V1 test lead to conductor +1
■
Connect the terminal I1 current probe to conductor +1
Ensure that the current arrow on the sensor is directed towards
the load. This ensures proper measurements for power and
other sign sensitive quantities.
3.6.6.2 Dc 3-Wire
For DC 3- Wire measurements:
■
Connect the terminal N test lead to the common conductor
■
Connect the terminal V1 test lead to conductor +1
■
Connect the terminal V2 test lead to conductor +2
■
Connect the terminal I1 current probe to conductor +1
■
Connect the terminal I2 current probe to conductor +2
Ensure that the current arrow on the sensor is directed towards the
load. This ensures proper measurements for power and other sign
sensitive quantities.
28
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V1
V2
V3
N
I1
Figure 26
V1
V2
V3
N
I1
Figure 27
Power & Energy Logger Model PEL 102 and PEL 103
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+1
_
I2
I3
+1
+2
_
I2
I3