Phase Current - GE D60 Instruction Manual

GROUPED ELEMENTS
LOAD ENCROACHMENT MIN VOLT
the element. When the voltage is below this threshold, a blocking signal is not asserted by the element. When selecting
this setting, remember that the D60 measures the phase-to-ground sequence voltages regardless of the VT connection.
The nominal VT secondary voltage as specified with the
setting is the per-unit base for this setting.
SECONDARY
LOAD ENCROACHMENT REACH
5
Encroachment Characteristic diagram. Enter this setting in secondary ohms and calculate it as the positive-sequence
resistance seen by the relay under maximum load conditions and unity power factor.
LOAD ENCROACHMENT ANGLE
Characteristic diagram and applies to the positive-sequence impedance.

5.7.7 Phase current

5.7.7.1 Menu
SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  PHASE CURRENT
 PHASE CURRENT

5-248
Figure 5-139: Load encroachment applied to distance element
— This setting specifies the minimum positive-sequence voltage required for operation of
SYSTEM SETUP  AC INPUTS  VOLTAGE BANK X5  PHASE VT
— This setting specifies the resistive reach of the element as shown in the Load
— This setting specifies the size of the blocking region as shown on the Load Encroachment
Figure 5-140: Load encroachment logic
 PHASE TOC1



See page 5-254
D60 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS