Basler Electric BE1-11t - Manual (Page 233)

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Figure 175. BE1-11t Connected for Primary Protection, BE1-851 Connected for Independent Backup
Notes for Figure 175:
1. With the appropriate transformer and CT connection information, the BE1-11t can automatically
determine the required compensation. The BE1-11t can accommodate any combination of
transformer and CT connection (wye, delta AB, or Delta AC). For more information, refer to the
Configuration chapter.
2. Independent ground input (I
G
) can be connected for overcurrent or neutral differential protection.
3. Phase, residual, and I
2
overcurrent elements can be connected to any CT circuit for backup
protection.
4. Overcurrent neutral ground (I
N
) operates on internally calculated residual (3I0) current.
5. A four-wire connection is shown as typical. For more information on VTP connections, refer to the
Typical Connections chapter.
6. The polarity of metered watts and vars can be adjusted using BESTCOMSPlus.
7. Shown with separate, overlapping CT for independent backup protection.
BE1-11t Power System Applications