GE D30 Instruction Manual page 467
Line distance protection system
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- Instruction manual (685 pages) ,
- Communications manual (532 pages) ,
- Instruction manual (520 pages)
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CHAPTER 5: SETTINGS
There are three negative-sequence overvoltage elements available.
Use the negative-sequence overvoltage element to detect loss of one or two phases of the source, a reversed phase
sequence of voltage, or a non-symmetrical system voltage condition.
5.7.12.6 Auxiliary undervoltage (ANSI 27X, IEC PTUV)
SETTINGS GROUPED ELEMENTS SETTING GROUP 1(6) VOLTAGE ELEMENTS AUXILIARY UV1(3)
AUXILIARY UV1
D30 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
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
Figure 5-145: Negative-sequence overvoltage logic
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
GROUPED ELEMENTS
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
Range: Disabled, Enabled
Range: SRC 1, SRC 2
Range: 0.004 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
5
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