GE L60 Instruction Manual page 33

2 PRODUCT DESCRIPTION
PHASE/NEUTRAL/GROUND TOC
Current: Phasor or RMS
Pickup level: 0.000 to 30.000 pu in steps of 0.001
Dropout level: 97% to 98% of Pickup
Level accuracy:
for 0.1 to 2.0 × CT:
±0.5% of reading or ±1% of rated
(whichever is greater)
for > 2.0 × CT: ±1.5% of reading > 2.0 × CT rating
Curve shapes: IEEE Moderately/Very/Extremely
Inverse; IEC (and BS) A/B/C and Short
Inverse; GE IAC Inverse, Short/Very/
Extremely Inverse; I
(programmable); Definite Time (0.01 s
base curve)
Curve multiplier: Time Dial = 0.00 to 600.00 in steps of
0.01
Reset type: Instantaneous/Timed (per IEEE)
Timing accuracy: Operate at > 1.03 × actual Pickup
±3.5% of operate time or ±½ cycle
(whichever is greater)
PHASE/NEUTRAL/GROUND IOC
Pickup level: 0.000 to 30.000 pu in steps of 0.001
Dropout level: 97 to 98% of pickup
Level accuracy:
0.1 to 2.0 × CT rating: ±0.5% of reading or ±1% of rated
(whichever is greater)
> 2.0 × CT rating ±1.5% of reading
Overreach: <2%
Pickup delay: 0.00 to 600.00 s in steps of 0.01
Reset delay: 0.00 to 600.00 s in steps of 0.01
<16 ms at 3 × Pickup at 60 Hz
Operate time:
(Phase/Ground IOC)
<20 ms at 3 × Pickup at 60 Hz
(Neutral IOC)
Timing accuracy: Operate at 1.5 × Pickup
±3% or ±4 ms (whichever is greater)
NEGATIVE SEQUENCE TOC
Current: Phasor
Pickup level: 0.000 to 30.000 pu in steps of 0.001
Dropout level: 97% to 98% of Pickup
Level accuracy: ±0.5% of reading or ±1% of rated (which-
ever is greater)
from 0.1 to 2.0 x CT rating
±1.5% of reading > 2.0 x CT rating
Curve shapes: IEEE Moderately/Very/Extremely
Inverse; IEC (and BS) A/B/C and Short
Inverse; GE IAC Inverse, Short/Very/
Extremely Inverse; I
(programmable); Definite Time (0.01 s
base curve)
Curve multiplier (Time dial): 0.00 to 600.00 in steps of 0.01
Reset type: Instantaneous/Timed (per IEEE) and Lin-
ear
Timing accuracy: Operate at > 1.03 × Actual Pickup
±3.5% of operate time or ±½ cycle
(whichever is greater)
GE Multilin
NEGATIVE SEQUENCE IOC
Current:
Pickup level:
Dropout level:
Level accuracy:
0.1 to 2.0 × CT rating: ±0.5% of reading or ±1% of rated
(whichever is greater)
> 2.0 × CT rating: ±1.5% of reading
Overreach:
Pickup delay:
Reset delay:
2
t; FlexCurves™
Operate time:
Timing accuracy:
PHASE DIRECTIONAL OVERCURRENT
Relay connection:
Quadrature voltage:
ABC phase seq.: phase A (V
ACB phase seq.: phase A (V
Polarizing voltage threshold: 0.000 to 3.000 pu in steps of 0.001
Current sensitivity threshold: 0.05 pu
Characteristic angle:
Angle accuracy:
Operation time (FlexLogic™ operands):
Tripping (reverse load, forward fault):< 12 ms, typically
Blocking (forward load, reverse fault):< 8 ms, typically
NEUTRAL DIRECTIONAL OVERCURRENT
Directionality:
Polarizing:
Polarizing voltage:
Polarizing current:
Operating current:
Level sensing:
Restraint, K:
Characteristic angle:
Limit angle:
Angle accuracy:
Offset impedance:
Pickup level:
Dropout level:
Operation time:
2
t; FlexCurves™
L60 Line Phase Comparison Relay
2.2 SPECIFICATIONS
Phasor
0.000 to 30.000 pu in steps of 0.001
97 to 98% of Pickup
< 2%
0.00 to 600.00 s in steps of 0.01
0.00 to 600.00 s in steps of 0.01
< 20 ms at 3 × Pickup at 60 Hz
Operate at 1.5 × Pickup
±3% or ± 4 ms (whichever is greater)
°
90 (quadrature)
), phase B (V ), phase C (V
BC CA
), phase B (V ), phase C (V
CB AC
°
0 to 359 in steps of 1
±2°
Co-existing forward and reverse
Voltage, Current, Dual
V_0 or VX
IG
I_0
3 × (|I_0| – K × |I_1|), IG
0.000 to 0.500 in steps of 0.001
–90 to 90° in steps of 1
40 to 90° in steps of 1, independent for
forward and reverse
±2°
0.00 to 250.00 Ω in steps of 0.01
0.002 to 30.000 pu in steps of 0.01
97 to 98%
< 16 ms at 3 × Pickup at 60 Hz
2
)
AB
)
BA
2-9