CT Lab Vecto III User Manual

Vecto III User Manual
58
Figure 29: Vecto III 4-wire star connection
4.2.3.3 110V Voltage Transformer (VT) Circuits or 400V/550V Direct (Delta/3-wire
systems)
Always connect the safety earth terminal located on the power
connector first
Table 11: VT circuit connection layout for 3-wire delta connection
Terminal
Legend
110V VT Circuit or 400 V/550 V Delta (3-wire) Systems
1.
V
1
Phase 1
2.
V
2
Phase 2
3.
V
3
Phase 3
4.
V
com
Open (Note: V
com
may also be connected to the earthed
Phase/Phase 2 on 110 V VT circuits)
5.
V
4+
Open
6.
V
4-
Open

CT Lab Vecto III Specifications

General

Brand	CT Lab
Model	Vecto III
Category	Measuring Instruments
Language	English