GE T60 Instruction Manual page 46

SPECIFICATIONS
Availability:
Pickup level:
Reset delay:
SYNCHROCHECK
Max voltage difference:
Max angle difference:
Max freq. difference:
2
Hysteresis for max. freq. diff.:
Dead source function:
S-CLS MAX dF:
S-CLS MIN dF:
V2 MAG CORR FACTOR:
V2 ANGLE SHIFT:
POWER SWING DETECT
Functions:
Characteristic:
Measured impedance:
Blocking / tripping modes:
Tripping mode:
Current supervision:
Pickup level:
Dropout level:
Fwd / reverse reach (sec. Ω):
Left and right blinders (sec. Ω):
Impedance accuracy:
Fwd / reverse angle impedances:
Angle accuracy:
Characteristic limit angles:
Timers:
Timer accuracy:
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):
RTD PROTECTION
Pickup:
2-32
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
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
Power swing block, out-of-step trip
Mho or Quad
Positive-sequence
2-step or 3-step
Early or Delayed
0.050 to 30.000 pu in steps of 0.001
97 to 98% of pickup
0.10 to 500.00 Ω in steps of 0.01
0.10 to 500.00 Ω in steps of 0.01
±5%
40 to 90° in steps of 1
±2°
40 to 140° in steps of 1
0.000 to 65.535 s in steps of 0.001
±3% of operate time or ±1/4 cycle (whichever is greater)
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
1 to 249°C in steps of 1
T60 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 2: PRODUCT DESCRIPTION
< 0.9 × k × I and I / (k × I ) > 1.1
p b b