GE G30 - Page 310

5-170 G30 Generator Protection System GE Multilin
5.6 GROUPED ELEMENTS 5 SETTINGS
5
Figure 5–64: NEUTRAL IOC1 SCHEME LOGIC
d) NEUTRAL DIRECTIONAL OVERCURRENT (ANSI 67N, IEC PDEF/PTOC)
PATH: SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  NEUTRAL CURRENT  NEUTRAL DIRECTIONAL OC1(2)
 NEUTRAL
 DIRECTIONAL OC1
NEUTRAL DIR OC1
FUNCTION: Disabled
Range: Disabled, Enabled
MESSAGE
NEUTRAL DIR OC1
SOURCE: SRC 1
Range: SRC 1, SRC 2, SRC 3, SRC 4
MESSAGE
NEUTRAL DIR OC1
POLARIZING: Voltage
Range: Voltage, Current, Dual, Dual-V, Dual-I
MESSAGE
NEUTRAL DIR OC1 POL
VOLT: Calculated V0
Range: Calculated V0, Aux. Voltage (VX)
MESSAGE
NEUTRAL DIR OC1 OP
CURR: Calculated 3I0
Range: Calculated 3I0, Measured IG
MESSAGE
NEUTRAL DIR OC1 POS-
SEQ RESTRAINT: 0.063
Range: 0.000 to 0.500 in steps of 0.001
MESSAGE
NEUTRAL DIR OC1
OFFSET: 0.00 Ω
Range: 0.00 to 250.00 Ω in steps of 0.01
MESSAGE
NEUTRAL DIR OC1 FWD
ECA: 75° Lag
Range: –90 to 90° in steps of 1
MESSAGE
NEUTRAL DIR OC1 FWD
LIMIT ANGLE: 90°
Range: 40 to 90° in steps of 1
MESSAGE
NEUTRAL DIR OC1 FWD
PICKUP: 0.050 pu
Range: 0.006 to 30.000 pu in steps of 0.001
MESSAGE
NEUTRAL DIR OC1 REV
LIMIT ANGLE: 90°
Range: 40 to 90° in steps of 1
MESSAGE
NEUTRAL DIR OC1 REV
PICKUP: 0.050 pu
Range: 0.006 to 30.000 pu in steps of 0.001
MESSAGE
NEUTRAL DIR OC1 BLK:
Off
Range: FlexLogic operand
MESSAGE
NEUTRAL DIR OC1
TARGET: Self-reset
Range: Self-reset, Latched, Disabled
MESSAGE
NEUTRAL DIR OC1
EVENTS: Disabled
Range: Disabled, Enabled
FLEXLOGIC OPERANDS
NEUTRAL IOC1 FUNCTION:
NEUTRAL IOC1 PICKUP:
NEUTRAL IOC1 SOURCE:
NEUTRAL IOC1 BLOCK:
NEUTRAL IOC1 DPO
NEUTRAL IOC1 OP
NEUTRAL IOC1 PKP
RUN
AND
827035A5.CDR
SETTING
SETTING
Enabled=1
SETTING
SETTING
I_0
Off=0
SETTINGS
NEUTRAL IOC1
RESET DELAY :
NEUTRAL IOC1
PICKUP DELAY :
t
PKP
t RST
3( I_0 - K I_1 ) PICKUP