GE L90 Instruction Manual page 318

5.6 GROUPED ELEMENTS
d) PHASE INSTANTANEOUS OVERCURRENT (ANSI 50P, IEC PIOC)
PATH: SETTINGS GROUPED ELEMENTS
PHASE IOC1
5
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).
SETTING
PHASE IOC1
FUNCTION:
Enabled = 1
Disabled = 0
SETTING
PHASE IOC1
SOURCE:
IA
IB
IC
SETTING
PHASE IOC1
BLOCK-A:
Off = 0
SETTING
PHASE IOC1
BLOCK-B:
Off = 0
SETTING
PHASE IOC1
BLOCK-C:
Off = 0
Figure 5–84: PHASE INSTANTANEOUS OVERCURRENT 1 SCHEME LOGIC
5-172
SETTING GROUP 1(6)
PHASE IOC1
FUNCTION: Disabled
PHASE IOC1 SIGNAL
MESSAGE
SOURCE: SRC 1
PHASE IOC1
MESSAGE
PICKUP:
PHASE IOC1 PICKUP
MESSAGE
DELAY:
PHASE IOC1 RESET
MESSAGE
DELAY:
PHASE IOC1 BLOCK A:
MESSAGE
Off
PHASE IOC1 BLOCK B:
MESSAGE
Off
PHASE IOC1 BLOCK C:
MESSAGE
Off
PHASE IOC1
MESSAGE
TARGET: Self-reset
PHASE IOC1
MESSAGE
EVENTS: Disabled
SETTING
PHASE IOC1
PICKUP:
AND RUN
IA ≥ PICKUP
AND RUN
IB ≥ PICKUP
AND RUN
IC ≥ PICKUP
L90 Line Current Differential System
PHASE CURRENT
Range: Disabled, Enabled
Range: SRC 1, SRC 2, SRC 3, SRC 4
Range: 0.000 to 30.000 pu in steps of 0.001
1.000 pu
Range: 0.00 to 600.00 s in steps of 0.01
0.00 s
Range: 0.00 to 600.00 s in steps of 0.01
0.00 s
Range: FlexLogic™ operand
Range: FlexLogic™ operand
Range: FlexLogic™ operand
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
SETTINGS
PHASE IOC1
PICKUPDELAY:
PHASE IOC1 RESET
DELAY:
t
PKP
t
RST
t
PKP
t
RST
t
PKP
t
RST
5 SETTINGS
PHASE IOC 1(2)
FLEXLOGIC
OPERANDS
PHASE IOC1 A PKP
PHASE IOC1 A DPO
PHASE IOC1 B PKP
PHASE IOC1 B DPO
PHASE IOC1 C PKP
PHASE IOC1 C DPO
PHASE IOC1 A OP
PHASE IOC1 B OP
PHASE IOC1 C OP
OR PHASE IOC1 PKP
OR PHASE IOC1 OP
AND PHASE IOC1 DPO
827033A6.VSD
GE Multilin