GE D60 Instruction Manual page 451
Line distance protection system
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- Instruction manual (826 pages) ,
- Communications manual (532 pages) ,
- Instruction manual (780 pages)
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CHAPTER 5: SETTINGS
There are three phase overvoltage elements available. A phase overvoltage element is used as an instantaneous element
with no intentional time delay or as a definite 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 figure
shows specific voltages to be used for each phase.
If the source VT is wye-connected, then the phase overvoltage pickup condition is V >
V
.
CA
5.7.13.4 Neutral overvoltage (ANSI 59N, IEC PTOV)
SETTINGS GROUPED ELEMENTS SETTING GROUP 1(6) VOLTAGE ELEMENTS NEUTRAL OV1(3)
NEUTRAL OV1
D60 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
PHASE OV1
EVENTS: Disabled
Figure 5-154: Phase overvoltage logic
NEUTRAL OV1
FUNCTION: Disabled
NEUTRAL OV1 SIGNAL
SOURCE: SRC 1
NEUTRAL OV1 PICKUP:
0.300 pu
NEUTRAL OV1 CURVE:
Definite Time
NEUTRAL OV1 PICKUP:
DELAY: 1.00 s
NEUTRAL OV1 RESET:
DELAY: 1.00 s
NEUTRAL OV1 BLOCK:
Off
NEUTRAL OV1 TARGET:
Self-reset
NEUTRAL OV1 EVENTS:
Disabled
GROUPED ELEMENTS
Range: Disabled, Enabled
x Pickup for V
Range: Disabled, Enabled
Range: SRC 1, SRC 2, SRC 3, SRC 4
Range: 0.004 to 3.000 pu in steps of 0.001
Range: Definite Time, FlexCurve A, FlexCurve B,
FlexCurve C
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
5
, V
, and
AB
BC
5-273
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