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Phase Voltage - GE UR Series Instruction Manual

Line differential relay.
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5 SETTINGS
a) PHASE UV1 / UV2 (PHASE UNDERVOLTAGE: ANSI 27P)
ÖØ
PATH: SETTINGS
GROUPED ELEMENTS
PHASE
UNDERVOLTAGE1
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
The phase undervoltage element may be used to give a desired time-delay operating characteristic versus the applied fun-
damental voltage (phase to ground or phase to phase for Wye VT connection, or phase to phase only for Delta VT connec-
tion) or as a simple Definite Time element. The element resets instantaneously if the applied voltage exceeds the dropout
voltage. The delay setting selects the minimum operating time of the phase undervoltage element. The minimum voltage
setting selects the operating voltage below which the element is blocked (a setting of '0' will allow a dead source to be con-
sidered a fault condition).
SETTING
PHASE UV1
FUNCTION:
Disabled = 0
Enabled = 1
SETTING
PHASE UV1
AND
BLOCK:
Off = 0
SETTING
PHASE UV1 SOURCE:
Source VT = Delta
VAB
VBC
VCA
Source VT = Wye
SETTING
PHASE UV1 MODE:
Phase to Ground Phase to Phase
VAG
VAB
VBG
VBC
VCG
VCA
GE Power Management
Ö
ÖØ
SETTING GROUP 1(8)
PHASE UV1
FUNCTION: Disabled
PHASE UV1 SIGNAL
SOURCE: SRC 1
PHASE UV1 MODE:
Phase to Ground
PHASE UV1
PICKUP: 1.000 pu
PHASE UV1
CURVE: Definite Time
PHASE UV1
DELAY:
1.00 s
PHASE UV1 MINIMUM
VOLTAGE: 0.100 pu
PHASE UV1 BLOCK:
Off
PHASE UV1
TARGET: Self-reset
PHASE UV1
EVENTS: Disabled
SETTING
PHASE UV1
MINIMUM VOLTAGE:
<
VAG or VAB
Minimum
<
VBG or VBC
Minimum
OR
<
VCG or VCA
Minimum
Figure 5–56: PHASE UV1 SCHEME LOGIC
L90 Line Differential Relay
5.5 GROUPED ELEMENTS

5.5.18 PHASE VOLTAGE

Ö
VOLTAGE ELEMENTS
PHASE UNDERVOLTAGE1
Range: Disabled, Enabled
Range: SRC 1, SRC 2,..., SRC 6
Range: Phase to Ground, Phase to Phase
Range: 0.000 to 3.000 pu in steps of 0.001
Range: Definite Time, Inverse Time
Range: 0.00 to 600.00 s in steps of 0.01
Range: 0.000 to 3.000 pu in steps of 0.001
Range: FlexLogic™ operand
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
SETTING
PHASE UV1
PICKUP:
PHASE UV1
CURVE:
PHASE UV1
DELAY:
<
RUN
VAG or VAB PICKUP
t
V
<
RUN
VBG or VBC PICKUP
t
V
<
RUN
VCG or VCA PICKUP
t
V
5
FLEXLOGIC OPERANDS
PHASE UV1 A PKP
PHASE UV1 A DPO
PHASE UV1 A OP
PHASE UV1 B PKP
PHASE UV1 B DPO
PHASE UV1 B OP
PHASE UV1 C PKP
PHASE UV1 C DPO
PHASE UV1 C OP
FLEXLOGIC OPERAND
OR
PHASE UV1 PKP
FLEXLOGIC OPERAND
OR
PHASE UV1 OP
827039A9.CDR
5-113

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L90

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