GE UR T60 - Page 297

GE Multilin T60 Transformer Protection System 5-159
5 SETTINGS 5.6 GROUPED ELEMENTS
5
Figure 5–74: GROUND DISTANCE ZONE 2 OP SCHEME
For ground distance zone 2, there is a provision to start the zone timer with the other distance zones or loop pickup
flags to avoid prolonging ground distance zone 2 operation if the fault evolves from one type to another or migrates
from zone 3 or 4 to zone 2. The desired zones should be assigned in the trip output element to accomplish this
functionality.
Figure 5–75: GROUND DISTANCE ZONES 3 AND HIGHER OP SCHEME
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