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4.1.3. THREE-PHASE 3-WIRE SUPPLY NETWORKS
4.1.3.1. Three-phase, 3-wire, D (with 2 current sensors): 3P-3WD2
Connect the VE/GND terminal to the earth.
Connect the V1 terminal to the L1 phase.
Connect the V2 terminal to the L2 phase.
Connect the V3 terminal to the L3 phase.
Connect the I1 current sensor to the L1 phase.
Connect the I3 current sensor to the L3 phase.
Always check that the arrow of the current sensor
points towards the load. This ensures that the phase
angle will be correct for power measurements and
other measurements that depend on the phase.
Figure 16
4.1.3.2. Three-phase, 3-wire, D (with 3 current sensors): 3P-3WD3
Connect the VE/GND terminal to the earth.
Connect the V1 terminal to the L1 phase.
Connect the V2 terminal to the L2 phase.
Connect the V3 terminal to the L3 phase.
Connect the I1 current sensor to the L1 phase.
Connect the I2 current sensor to the L2 phase.
Connect the I3 current sensor to the L3 phase.
Always check that the arrow of the current sensor
points towards the load. This ensures that the phase
angle will be correct for power measurements and
other measurements that depend on the phase.
Figure 17
4.1.3.3. Three-phase, 3-wire open D (with 2 current sensors): 3P-3WO2
Connect the VE/GND terminal to the earth.
Connect the V1 terminal to the L1 phase.
Connect the V2 terminal to the L2 phase.
Connect the V3 terminal to the L3 phase.
Connect the I1 current sensor to the L1 phase.
Connect the I3 current sensor to the L3 phase.
Always check that the arrow of the current sensor
points towards the load. This ensures that the phase
angle will be correct for power measurements and
other measurements that depend on the phase.
Figure 18
VN V3 V2 V1 VE/GND
IN I3 I2 I1
L1
L2
L3
L2 L1
L3
VN V3 V2 V1 VE/GND
IN I3 I2 I1
L1
L2
L3
L2 L1
L3
VN V3 V2 V1 VE/GND
IN I3 I2 I1
L1
L2
L3
L2 L1
L3
22


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