GE L30 Instruction Manual page 285

5 SETTINGS
SETTING
PHASE OV1
FUNCTION:
Disabled = 0
Enabled = 1
SETTING
AND
PHASE OV1
BLOCK:
Off = 0
SETTING
PHASE OV1
SOURCE:
Source VT = Delta
VAB
VBC
VCA
Source VT = Wye
If the source VT is wye-connected, then the phase overvoltage pickup condition is
and V .
CA
NOTE
d) NEGATIVE SEQUENCE OVERVOLTAGE (ANSI 59_2)
PATH: SETTINGS GROUPED ELEMENTS
NEG SEQ OV1
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
There are three negative-sequence overvoltage elements available.
The negative-sequence overvoltage element may be used to detect loss of one or two phases of the source, a reversed
phase sequence of voltage, or a non-symmetrical system voltage condition.
GE Multilin
SETTINGS
PHASE OV1 PICKUP
SETTING
DELAY:
PHASE OV1 PHASE OV1 RESET
PICKUP: DELAY:
RUN t PKP
≥
VAB PICKUP
RUN
t PKP
≥
VBC PICKUP
RUN
≥
VCA PICKUP t PKP
Figure 5–70: PHASE OVERVOLTAGE SCHEME LOGIC
SETTING GROUP 1(6)
NEG SEQ OV1
FUNCTION: Disabled
NEG SEQ OV1 SIGNAL
SOURCE: SRC 1
NEG SEQ OV1 PICKUP:
0.300 pu
NEG SEQ OV1 PICKUP
DELAY: 0.50 s
NEG SEQ OV1 RESET
DELAY: 0.50 s
NEG SEQ OV1 BLOCK:
Off
NEG SEQ OV1 TARGET:
Self-reset
NEG SEQ OV1 EVENTS:
Disabled
L30 Line Current Differential System
5.6 GROUPED ELEMENTS
t RST
t RST
t RST
>
V
VOLTAGE ELEMENTS NEG SEQ OV1(3)
Range: Disabled, Enabled
Range: SRC 1, SRC 2
Range: 0.000 to 1.250 pu in steps of 0.001
Range: 0.00 to 600.00 s in steps of 0.01
Range: 0.00 to 600.00 s in steps of 0.01
Range: FlexLogic™ operand
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
FLEXLOGIC OPERANDS
PHASE OV1 A PKP
PHASE OV1 A DPO
PHASE OV1 A OP
PHASE OV1 B PKP
PHASE OV1 B DPO
PHASE OV1 B OP
PHASE OV1 C PKP
PHASE OV1 C DPO
PHASE OV1 C OP
FLEXLOGIC OPERAND
PHASE OV1 OP
OR
FLEXLOGIC OPERAND
PHASE OV1 DPO
AND
FLEXLOGIC OPERAND
OR PHASE OV1 PKP
827066A7.CDR
×
3 Pickup for V , V ,
AB BC
5
5-149