30
4.1.5. 3-PHASE 4-WIRE
∆
High Leg configuration. No Voltage Transformer is connected: the installation under test is assumed to be a low-voltage distribution
system.
4.1.5.1.
3-Phase 4-Wire
∆
: 3P-4W
∆
For 3-Phase 4-Wire Y 2½ Element measurements using three current sensors:
Connect the N test lead to the Neutral conductor
Connect the V1 test lead to the L1 phase conductor
Connect the V3 test lead to the L3 phase conductor
Connect the I1 current probe to the L1 phase conductor.
Connect the I2 current probe to the L2 phase conductor
Connect the I3 current probe to the L3 phase conductor
Check that the current arrow on the sensor points towards the load.
This ensures proper phase angle for Power Measurements and other
phase-sensitive measurements.
L1
L2
L3
N
V1 V2 V3 N
I1
I2
I3
L2
L3
L1
N
Figure 30
For 3-Phase 4-Wire
∆
measurements using three current sensors:
Connect the N test lead to the Neutral conductor
Connect the V1 test lead to the L1 phase conductor
Connect the V2 test lead to the L2 phase conductor
Connect the V3 test lead to the L3 phase conductor
Connect the I1 current probe to the L1 phase conductor.
Connect the I2 current probe to the L2 phase conductor
Connect the I3 current probe to the L3 phase conductor
Check that the current arrow on the sensor points towards the load.
This ensures proper phase angle for Power Measurements and other
phase-sensitive measurements.
L1
L2
L3
N
V1 V2 V3 N
I1
I2
I3
L1
L2
L3
N
Figure 31
For 3-Phase 4-Wire Open
∆
measurements using three current sensors:
Connect the N test lead to the Neutral conductor
Connect the V1 test lead to the L1 phase conductor
Connect the V2 test lead to the L2 phase conductor
Connect the V3 test lead to the L3 phase conductor
Connect the I1 current probe to the L1 phase conductor.
Connect the I2 current probe to the L2 phase conductor
Connect the I3 current probe to the L3 phase conductor
Check that the current arrow on the sensor points towards the load.
This ensures proper phase angle for Power Measurements and other
phase-sensitive measurements.
4.1.4.3.
3-Phase 4-Wire Y 2½ Element
: 3P-4WY2
4.1.5.2.
3-Phase 4-Wire Open
∆
: 3P-4WO
L1
L2
L3
N
V1 V2 V3 N
I1
I2
I3
L1
L2
L3
N
Figure 32
Summary of Contents for pel 102
Page 1: ...Power energy logger EN User s manual PEL 102 PEL 103 PEL 104 ...
Page 24: ...24 Aggregation period Date and time IP address scrolling Wi Fi address scrolling PEL104 ...
Page 36: ...36 Three phase 3 wire balanced 3P 3W b U12 U23 U31 f P Q S PF P Q S tan ϕ I1 I2 I3 ϕ I1 U12 ...
Page 38: ...38 Three phase 4 wire wye balanced 3P 4WYb I1 I2 I3 V1 V2 V3 VN U12 U23 U31 f P Q S tan ϕ ...
Page 39: ...39 DC 2 wire dC 2W DC 3 wire dC 3W P Q S PF ϕ I1 V1 P Q S tan ϕ P I V VN I1 I2 IN ...
Page 40: ...40 DC 4 wire dC 4W P I1 I2 I3 IN V1 V2 V3 VN V1 V2 VN ...
Page 48: ...48 Two phase 3 wire 1P 3W I1 I2 V1 V2 U12 VN P Q S P Q S ...
Page 51: ...51 P Q S ...
Page 85: ...85 ...