GE T60 Instruction Manual page 354

5.6 GROUPED ELEMENTS
e) PHASE DIRECTIONAL OVERCURRENT (ANSI 67P, IEC PVCB/PTOC)

PATH: SETTINGS GROUPED ELEMENTS
 PHASE
 DIRECTIONAL 1
Phase directional target messages not used with the current version of the T60 relay. As a result, the target
5
settings are not applicable for the phase directional element.
NOTE
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.
5-218

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 5–108: PHASE A DIRECTIONAL POLARIZATION
T60 Transformer Protection System
 
PHASE CURRENT
Range: Disabled, Enabled
Range: SRC 1, SRC 2, SRC 3, SRC 4, SRC 5, SRC 6
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
BLOCK
VPol
VBC
+90°
827800A2.CDR
GE Multilin
inputs