BE1-951
Installation
12-21
Notes:
°
1.
The neutral ground (I
N
) operates on internally calculated residual (3Io) current
2.
VTP connections shown are for H1 case. See Figure 12-13 for S1 case connections
3.
4-wire connection shown as typical. See Figure 12-20 for alternate VTP connections
3.
CT polarity connected to relay polarity, power flow from Bus to Load defined as power out
and = "+" watts
4.
Optional Independent Ground Input (IG) supplied by a core balance CT, provides sensitive
ground fault protection
Figure 12-24. OC Protection of an Industrial Feeder (Radial Load) with Optional Independent Ground
(IG) Connected to Core Balance CT for Sensitive Ground Fault Protection