GE D60 Instruction Manual page 229

5 SETTINGS
f) AUXILIARY UNDERVOLTAGE (ANSI 27X)
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PATH: SETTINGS GROUPED ELEMENTS
# AUXILIARY UV1
#
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
This element is intended for monitoring undervoltage conditions of the auxiliary voltage. The
voltage level at which the time undervoltage element starts timing. The nominal secondary voltage of the auxiliary voltage
channel entered under
SETTINGS
is the p.u. base used when setting the pickup level.
The setting selects the minimum operating time of the auxiliary undervoltage element. Both
AUX UV1 DELAY
and settings establish the operating curve of the undervoltage element. The auxiliary undervoltage element
AUX UV1 DELAY
can be programmed to use either Definite Time Delay or Inverse Time Delay characteristics. The operating characteristics
and equations for both Definite and Inverse Time Delay are as for the Phase Undervoltage element.
The element resets instantaneously. The minimum voltage setting selects the operating voltage below which the element is
blocked.
SETTING
AUX UV1
FUNCTION:
Disabled=0
Enabled=1
SETTING
AUX UV1 BLOCK:
Off=0
SETTING
AUX UV1 SIGNAL
SOURCE:
AUX VOLT Vx
GE Multilin
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SETTING GROUP 1(6)
AUX UV1
FUNCTION: Disabled
AUX UV1 SIGNAL
SOURCE: SRC 1
AUX UV1 PICKUP:
0.700 pu
AUX UV1 CURVE:
Definite Time
AUX UV1 DELAY:
1.00 s
AUX UV1 MINIMUM:
VOLTAGE: 0.100 pu
AUX UV1 BLOCK:
Off
AUX UV1 TARGET:
Self-reset
AUX UV1 EVENTS:
Disabled
!" !
SYSTEM SETUP AC INPUTS
SETTING
AUX UV1 MINIMUM
VOLTAGE:
<
Vx Minimum
Figure 5–91: AUXILIARY UNDERVOLTAGE SCHEME LOGIC
D60 Line Distance 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: 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
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VOLTAGE BANK X5
SETTING
AUX UV1 PICKUP:
AUX UV1 CURVE:
AUX UV1 DELAY:
<
RUN Vx Pickup
AND
t
V
5.5 GROUPED ELEMENTS
AUXILIARY UV1
selects the
AUX UV1 PICKUP
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AUXILIARY VT X5 SECONDARY
AUX UV1 PICKUP
FLEXLOGIC OPERANDS
AUX UV1 PKP
AUX UV1 DPO
AUX UV1 OP
827849A2.CDR
5-145
5