3-6
BE1-32R, -32 O/U FUNCTIONAL DESCRIPTION
Type D, Three-Phase Sensing
Refer to Figure 3-9. Type D sensing configurations monitor three line-to-neutral voltages and three-phase
currents of three-phase, four-wire circuits, and calculate the power flowing in the tripping direction. This relay
can also be applied on a three-phase, three-wire system using phase-to-ground voltages. Type D sensing
configurations are not phase rotation sensitive. The range switch of this type sensing is calibrated in three-phase
watts.
Figure 3-9. Type D Sensing
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