GE M60 Instruction Manual page 290

Motor protection system ur series
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5.6 GROUPED ELEMENTS
c) PHASE DIRECTIONAL OVERCURRENT(ANSI 67P)

PATH: SETTINGS
GROUPED ELEMENTS
 PHASE
 DIRECTIONAL 1
The TARGET setting is not user-selectable and forced to "Disabled". If Targets are required from directional ele-
5
ments, it can be achieved by assigning directional element output to a digital element, where targets selection can
NOTE
be used as required.
The phase directional elements (one for each of phases A, B, and C) determine the phase current flow direction for steady
state and fault conditions and can be used to control the operation of the phase overcurrent elements via the
of these elements.
5-152
SETTING GROUP 1(6)
PHASE DIR 1
FUNCTION: Disabled
PHASE DIR 1 SIGNAL
MESSAGE
SOURCE: SRC 1
PHASE DIR 1 BLOCK:
MESSAGE
Off
PHASE DIR 1
MESSAGE
ECA: 30°
PHASE DIR
MESSAGE
THRESHOLD: 0.700 pu
PHASE DIR 1 BLOCK
MESSAGE
WHEN V MEM EXP: No
PHASE DIR 1
MESSAGE
TARGET: Self-reset
PHASE DIR 1
MESSAGE
EVENTS: Disabled
VCG
Phasors for Phase A Polarization:
×
VPol = VBC
(1/_ECA) = polarizing voltage
IA = operating current
ECA = Element Characteristic Angle at 30°
Figure 5–80: PHASE A DIRECTIONAL POLARIZATION
M60 Motor Protection System
PHASE CURRENT
Range: Disabled, Enabled
Range: SRC 1, SRC 2, SRC 3, SRC 4
Range: FlexLogic™ operand
Range: 0 to 359° in steps of 1
Range: 0.000 to 3.000 pu in steps of 0.001
POL V1
Range: No, Yes
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
–90°
VAG (Unfaulted)
Fault angle
set at 60° Lag
VAG(Faulted)
IA
ECA
set at 30°
VBC
VBG
5 SETTINGS
PHASE DIRECTIONAL 1(2)
BLOCK
VPol
VBC
+90°
827800A2.CDR
GE Multilin
inputs

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