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5-152 L30 Line Current Differential System GE Multilin
5.6 GROUPED ELEMENTS 5 SETTINGS
5
d) PHASE INSTANTANEOUS OVERCURRENT (ANSI 50P, IEC PIOC)
PATH: SETTINGS

GROUPED ELEMENTS

SETTING GROUP 1(6)

PHASE CURRENT

PHASE IOC 1(2)
The phase instantaneous overcurrent element may be used as an instantaneous element with no intentional delay or as a
definite time element. The input current is the fundamental phasor magnitude. For timing curves, see the publication Instan-
taneous Overcurrent Element Response to Saturated Waveforms in UR-Series Relays (
GET-8400A ).
Figure 5–64: PHASE INSTANTANEOUS OVERCURRENT 1 SCHEME LOGIC

PHASE IOC1

PHASE IOC1
FUNCTION: Disabled
Range: Disabled, Enabled
MESSAGE
PHASE IOC1 SIGNAL
SOURCE: SRC 1
Range: SRC 1, SRC 2
MESSAGE
PHASE IOC1
PICKUP: 1.000
pu
Range: 0.000 to 30.000 pu in steps of 0.001
MESSAGE
PHASE IOC1 PICKUP
DELAY: 0.00
s
Range: 0.00 to 600.00 s in steps of 0.01
MESSAGE
PHASE IOC1 RESET
DELAY: 0.00
s
Range: 0.00 to 600.00 s in steps of 0.01
MESSAGE
PHASE IOC1 BLOCK A:
Off
Range: FlexLogic operand
MESSAGE
PHASE IOC1 BLOCK B:
Off
Range: FlexLogic operand
MESSAGE
PHASE IOC1 BLOCK C:
Off
Range: FlexLogic operand
MESSAGE
PHASE IOC1
TARGET: Self-reset
Range: Self-reset, Latched, Disabled
MESSAGE
PHASE IOC1
EVENTS: Disabled
Range: Disabled, Enabled
IA
≥
PICKUP
SETTING
PHASE IOC1
FUNCTION:
Enabled = 1
Disabled = 0
SETTING
PHASE IOC1
SOURCE:
IA
IB
IC
PHASE IOC1
BLOCK-A:
Off = 0
SETTING
SETTING
IB
≥
PICKUP
RUN
PHASE IOC1
PICKUP:
RUN
IC
≥
PICKUP
RUN
PHASE IOC1
PICKUPDELAY:
SETTINGS
PHASE IOC1 RESET
DELAY:
t
PKP
t
RST
t
PKP
t
RST
t
PKP
t
RST
827033A6.VSD
FLEXLOGIC
OPERANDS
PHASE IOC1 B PKP
PHASE IOC1 B DPO
PHASE IOC1 PKP
PHASE IOC1 C PKP
PHASE IOC1 C DPO
PHASE IOC1 A OP
PHASE IOC1 B OP
PHASE IOC1 OP
OR
AND
OR
AND
AND
PHASE IOC1 A DPO
PHASE IOC1 A PKP
PHASE IOC1 C OP
PHASE IOC1
BLOCK-B:
Off = 0
SETTING
PHASE IOC1
BLOCK-C:
Off = 0
SETTING
PHASE IOC1 DPO AND