CT Lab Vecto III, Руководство пользователя

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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