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L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL
GROUPED ELEMENTS
CHAPTER 5: SETTINGS
5
Never let the
FORCE SELF-POLAR
and
FORCE MEM-POLAR
settings to be asserted simultaneously. If this happens, the logic
gives higher priority to forcing self-polarization as indicated in the logic diagram. This is consistent with the overall
philosophy of distance memory polarization.
FAST DISTANCE
enables the fast distance algorithm in phase and ground zone 1 and zone 2. Disable fast distance for
distance protection applications on a series compensated line.
PH DIST PH SELECT SUPV
enables phase selection supervision on phase distance zone 1 to zone 3.
Figure 5-108: Memory voltage logic
5.6.5.2 Phase distance (ANSI 21P, IEC PDIS)
SETTINGS
GROUPED ELEMENTS
SETTING GROUP 1(6)
DISTANCE
PHASE DISTANCE Z1(Z3)
The memory polarization cannot be applied permanently but for a limited time only. The self-polarization can be
applied permanently and therefore takes higher priority.
The distance zones of the L60 are identical to that of the D60 Line Distance Relay.
PHASE DISTANCE Z1
PHS DIST Z1
FUNCTION: Disabled
Range: Disabled, Enabled
PHS DIST Z1 DIR:
Forward
Range: Forward, Reverse, Non-directional
PHS DIST Z1
SHAPE: Mho
Range: Mho, Quad
PHS DIST Z1 XFMR VOL
CONNECTION: None
Range: None, Dy1, Dy3, Dy5, Dy7, Dy9, Dy11, Yd1,
Yd3, Yd5, Yd7, Yd9, Yd11
PHS DIST Z1 XFMR CUR
CONNECTION: None
Range: None, Dy1, Dy3, Dy5, Dy7, Dy9, Dy11, Yd1,
Yd3, Yd5, Yd7, Yd9, Yd11
PHS DIST Z1
REACH: 2.00
Ω
Range: 0.02 to 500.00 ohms in steps of 0.01
PHS DIST Z1
RCA: 85°
Range: 30 to 90° in steps of 1
PHS DIST Z1 REV
REACH: 2.00
Ω
Range: 0.02 to 500.00 ohms in steps of 0.01
PHS DIST Z1 REV
REACH RCA: 85°
Range: 30 to 90° in steps of 1