GE F60 Instruction Manual page 39

CHAPTER 2: PRODUCT DESCRIPTION
Availability:
Pickup level:
Reset delay:
INCIPIENT CABLE FAULT DETECTION
Principle:
Availability:
Pickup level:
Reset delay:
Operating mode:
SYNCHROCHECK
Max voltage difference:
Max angle difference:
Max freq. difference:
Hysteresis for max. freq. diff.:
Dead source function:
S-CLS MAX dF:
S-CLS MIN dF:
V2 MAG CORR FACTOR:
V2 ANGLE SHIFT:
AUTORECLOSURE
Single breaker applications, 3-pole tripping schemes
Up to four reclose attempts before lockout
Independent dead time setting before each shot
Possibility of changing protection settings after each shot with FlexLogic
PILOT-AIDED SCHEMES
Permissive Overreaching Transfer Trip (POTT)
Directional Comparison Blocking Scheme
LOAD ENCROACHMENT
Responds to:
Minimum voltage:
Reach (sec. Ω):
Impedance accuracy:
Angle:
Angle accuracy:
Pickup delay:
Reset delay:
Timer accuracy:
Operate time:
THERMAL OVERLOAD PROTECTION
Thermal overload curves:
Base current:
Overload (k) factor:
Trip time constant:
Reset time constant:
Minimum reset time:
Timer accuracy (cold curve):
Timer accuracy (hot curve):
TRIP BUS (TRIP WITHOUT FLEXLOGIC)
Number of elements:
Number of inputs:
F60 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
one per CT/VT module (not including 8Z modules)
0.1 to 2.00 pu in steps of 0.01
0.000 to 65.535 s in steps of 0.001
detection of ½ cycle or less overcurrent condition during normal load
two per CT/VT module (not including 8Z modules)
0.1 to 10.00 pu in steps of 0.01
0.000 to 65.535 s in steps of 0.001
number of counts, counts per time window
0 to 400000 V in steps of 1
°
0 to 100 in steps of 1
0.00 to 2.00 Hz in steps of 0.01
0.00 to 0.10 Hz in steps of 0.01
None, LV1 & DV2, DV1 & LV2, DV1 or DV2, DV1 xor DV2, DV1 & DV2 (L = Live, D = Dead)
0.10 to 2.00 Hz in steps of 0.01
0.00 to 1.00 Hz in steps of 0.01
0.10 to 10.00 in steps of 0.01
° ° °
-180 to +180 in steps of 1
Positive-sequence quantities
0.004 to 3.000 pu in steps of 0.001
0.02 to 250.00 Ω in steps of 0.01
±5%
5 to 50° in steps of 1
±2°
0 to 65.535 s in steps of 0.001
0 to 65.535 s in steps of 0.001
±3% of operate time or ±1/4 cycle (whichever is greater)
<30 ms at 60 Hz
IEC 255-8 curve
0.20 to 3.00 pu in steps of 0.01
1.00 to 1.20 pu in steps of 0.05
0 to 1000 min. in steps of 1
0 to 1000 min. in steps of 1
0 to 1000 min. in steps of 1
±100 ms or 2%, whichever is greater
±500 ms or 2%, whichever is greater for I
6
16
< 0.9 × k × I and I / (k × I ) > 1.1
p b b
SPECIFICATIONS
2
2-25