GE L30 Instruction Manual page 328

5.6 GROUPED ELEMENTS
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 59Q, IEC PTOV)

PATH: SETTINGS GROUPED ELEMENTS
5
 NEG SEQ OV1

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.
5-192
SETTING
PHASE OV1
PICKUP:
RUN
≥
VAB PICKUP
RUN
≥
VBC PICKUP
RUN
≥
VCA PICKUP
Figure 5–84: PHASE OVERVOLTAGE SCHEME LOGIC

SETTING GROUP 1(6)
NEG SEQ OV1
FUNCTION: Disabled
NEG SEQ OV1 SIGNAL
MESSAGE
SOURCE: SRC 1
NEG SEQ OV1 PICKUP:
MESSAGE
0.300 pu
NEG SEQ OV1 PICKUP
MESSAGE
DELAY:
NEG SEQ OV1 RESET
MESSAGE
DELAY:
NEG SEQ OV1 BLOCK:
MESSAGE
Off
NEG SEQ OV1 TARGET:
MESSAGE
Self-reset
NEG SEQ OV1 EVENTS:
MESSAGE
Disabled
L30 Line Current Differential System
SETTINGS
PHASE OV1 PICKUP
DELAY:
PHASE OV1 RESET
DELAY:
t PKP
t RST
t PKP
t RST
t PKP
t RST

VOLTAGE ELEMENTS
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
0.50 s
Range: 0.00 to 600.00 s in steps of 0.01
0.50 s
Range: FlexLogic operand
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
5 SETTINGS
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
> ×
V 3 Pickup for V , V
AB

NEG SEQ OV1(3)
GE Multilin
,
BC