GE L90 Instruction Manual page 234

5.5 GROUPED ELEMENTS
c) PHASE OVERVOLTAGE (ANSI 59P)
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PATH: SETTINGS GROUPED ELEMENTS
# PHASE
# OVERVOLTAGE1
The phase overvoltage element may be used as an instantaneous element with no intentional time delay or as a Definite
5
Time element. The input voltage is the phase-to-phase voltage, either measured directly from Delta-connected VTs or as
calculated from phase-to-ground (Wye) connected VTs. The specific voltages to be used for each phase are shown below.
SETTING
PHASE OV1
FUNCTION:
Disabled = 0
Enabled = 1
SETTING
PHASE OV1
BLOCK:
Off = 0
SETTING
PHASE OV1 SOURCE:
Source VT = Delta
VAB
VBC
VCA
Source VT = Wye
SETTING
PHASE OV1 MODE:
Phase Phase
to Ground to Phase
VAG VAB
VBG VBC
VCG VCA
5-144
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SETTING GROUP 1(6)
PHASE OV1
FUNCTION: Disabled
PHASE OV1 SIGNAL
MESSAGE
SOURCE: SRC 1
PHASE OV1
MESSAGE
PICKUP: 1.000 pu
PHASE OV1 PICKUP
MESSAGE
DELAY:
PHASE OV1 RESET
MESSAGE
DELAY:
PHASE OV1 BLOCK:
MESSAGE
Off
PHASE OV1
MESSAGE
TARGET: Self-reset
PHASE OV1
MESSAGE
EVENTS: Disabled
SETTING
PHASE OV1
PICKUP:
PHASE OV1
CURVE:
PHASE OV1
DELAY:
<
RUN VAG or VAB PICKUP
AND t
V
<
RUN VBG or VBC PICKUP
t
V
<
RUN VCG or VCA PICKUP
t
V
}
Figure 5–87: PHASE OVERVOLTAGE SCHEME LOGIC
L90 Line Differential Relay
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VOLTAGE ELEMENTS
Range: Disabled, Enabled
Range: SRC 1, SRC 2, SRC 3, SRC 4
Range: 0.000 to 3.000 pu in steps of 0.001
Range: 0.00 to 600.00 s in steps of 0.01
1.00 s
Range: 0.00 to 600.00 s in steps of 0.01
1.00 s
Range: FlexLogic™ Operand
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
5 SETTINGS
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PHASE OVERVOLTAGE1
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 PKP
OR
FLEXLOGIC OPERAND
PHASE OV1 OP
OR
FLEXLOGIC OPERAND
AND
PHASE OV1 DPO
827066A5.CDR
GE Multilin