GE L60 Instruction Manual page 277

5 SETTINGS
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
The phase mho distance function uses a dynamic 100% memory-polarized mho characteristic with additional reactance,
directional, and overcurrent supervising characteristics. When set to "Non-directional", the mho function becomes an offset
mho with the reverse reach controlled independently from the forward reach, and all the directional characteristics
removed.
The phase quadrilateral distance function is comprised of a reactance characteristic, right and left blinders, and 100%
memory-polarized directional and current supervising characteristics. When set to "Non-directional", the quadrilateral func-
tion applies a reactance line in the reverse direction instead of the directional comparators. See Chapter 8 for additional
information.
Each phase distance zone is configured individually through its own setting menu. All of the settings can be independently
modified for each of the zones except:
1. The setting (common for the distance elements of all zones as entered under
SIGNAL SOURCE

ELEMENTS SETTING GROUP 1(6)
2. The
MEMORY DURATION

GROUPED ELEMENTS SETTING GROUP 1(6)
The common distance settings described earlier must be properly chosen for correct operation of the phase distance ele-
ments. Additional details are in chapter 8: Theory of operation.
Although all zones can be used as either instantaneous elements (pickup [
time-delayed elements (operate [
tripping mode.
Ensure that the Phase VT Secondary Voltage setting (see the
INPUTS
ory action.
• PHS DIST Z1 DIR: All phase distance zones are reversible. The forward direction is defined by the
setting, whereas the reverse direction is shifted 180° from that angle. The non-directional zone spans between the for-
GE Multilin
PHS DIST Z1
DIR COMP LIMIT: 90°
PHS DIST Z1 QUAD
RGT BLD: 10.00 ohms
PHS DIST Z1 QUAD
RGT BLD RCA: 85°
PHS DIST Z1 QUAD
LFT BLD: 10.00 ohms
PHS DIST Z1 QUAD
LFT BLD RCA: 85°
PHS DIST Z1
SUPV: 0.200 pu
PHS DIST Z1 VOLT
LEVEL: 0.000 pu
PHS DIST Z1
DELAY: 0.000 s
PHS DIST Z1 BLK:
Off
PHS DIST Z1
TARGET: Self-reset
PHS DIST Z1
EVENTS: Disabled
 ).
DISTANCE
setting (common for the distance elements of all zones as entered under

DISTANCE
] FlexLogic operands), only zone 1 is intended for the instantaneous under-reaching
OP
 menu) is set correctly to prevent improper operation of associated mem-
VOLTAGE BANK
L60 Line Phase Comparison System
Range: 30 to 90° in steps of 1
Range: 0.02 to 500.00 ohms in steps of 0.01
Range: 60 to 90° in steps of 1
Range: 0.02 to 500.00 ohms in steps of 0.01
Range: 60 to 90° in steps of 1
Range: 0.050 to 30.000 pu in steps of 0.001
Range: 0.000 to 5.000 pu in steps of 0.001
Range: 0.000 to 65.535 s in steps of 0.001
Range: FlexLogic operand
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
).
] and dropout [
PKP
SETTINGS
5.5 GROUPED ELEMENTS

SETTINGS GROUPED

SETTINGS
] FlexLogic operands) or
DPO
 
SYSTEM SETUP AC
PHS DIST Z1 RCA
5-149
5