2-18
L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS
CHAPTER 2: PRODUCT DESCRIPTION
2
Reach:
0.02 to 500
Ω
in steps of 0.01
Characteristic angle:
60 to 90° in steps of 1
Time delay:
0.000 to 65.535 s in steps of 0.001
Timer accuracy:
±3% of operate time or ±1/4 cycle (whichever is greater)
Current supervision:
Level:
line-to-line current
Pickup:
0.050 to 30.000 pu in steps of 0.001
Dropout:
97 to 98%
Memory duration:
5 to 25 cycles in steps of 1
VT location:
all delta-wye and wye-delta transformers
CT location:
all delta-wye and wye-delta transformers
Voltage supervision pickup (series compensation applications):
0 to 5.000 pu in steps of 0.001
Operation time:
1 to 1.5 cycles (typical)
Reset time:
1 power cycle (typical)
GROUND DISTANCE
Characteristic:
Mho (memory polarized or offset) or Quad (memory polarized or non-directional)
Reactance polarization:
negative-sequence or zero-sequence current
Non-homogeneity angle:
–40 to 40° in steps of 1
Number of zones:
3
Directionality:
forward, reverse, or non-directional
Reach (secondary
Ω
):
0.02 to 500.00
Ω
in steps of 0.01
Reach accuracy:
Zone 1:
±5% including the effect of CVT transients up to an SIR of 30 and ±7% for 30<SIR< 60 at RCA
angle
Zones 2 to 3:
±5% for steady fault conditions
Distance characteristic angle:
30 to 90° in steps of 1
Distance comparator limit angle:
30 to 90° in steps of 1
Directional supervision:
Characteristic angle:
30 to 90° in steps of 1
Limit angle:
30 to 90° in steps of 1
Zero-sequence compensation
Z0/Z1 magnitude:
0.00 to 10.00 in steps of 0.01
Z0/Z1 angle:
–90 to 90° in steps of 1
Zero-sequence mutual compensation
Z0M/Z1 magnitude:
0.00 to 7.00 in steps of 0.01
Z0M/Z1 angle:
–90 to 90° in steps of 1
Right blinder (Quad only):
Reach:
0.02 to 500
Ω
in steps of 0.01
Characteristic angle:
60 to 90° in steps of 1
Left blinder (Quad only):
Reach:
0.02 to 500
Ω
in steps of 0.01
Characteristic angle:
60 to 90° in steps of 1
Time delay:
0.000 to 65.535 s in steps of 0.001
Timer accuracy:
±3% of operate time or ±1/4 cycle (whichever is greater)
Current supervision:
Level:
neutral current (3I_0)
Pickup:
0.050 to 30.000 pu in steps of 0.001
Dropout:
97 to 98%
Memory duration:
5 to 25 cycles in steps of 1
Voltage supervision pickup (series compensation applications):
0 to 5.000 pu in steps of 0.001
Operation time:
1 to 1.5 cycles (typical)
Reset time:
1 power cycle (typical)