Basler Electric BE1-11t - Manual (Page 232)

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Figure 174. Complete Transformer Protection for Network or Radial Transformer Applications
Notes for Figure 174:
1. The neutral ground (IN) operates on internally calculated residual (3I0) current.
2. 4-wire connection shown is typical. See the Typical Connections chapter for alternate VTP
connections.
3. The polarity of metered watts and vars can be adjusted using BESTCOMSPlus.
4. VTX can be connected A-N, B-N, C-N, or A-B, B-C, C-A. The BE1-11t has settings for matching
phase angle and voltage magnitude between VTX and VTP.
5. Independent Ground Input (IG) connected to detect Low Side ground faults.
Power System Applications BE1-11t