GE UR Series Instruction Manual page 36

2.6 TECHNICAL SPECIFICATIONS
PHASE/NEUTRAL/GROUND TOC
Current:
Pickup Level:
Dropout Level:
Level Accuracy:
for 0.1 to 2.0 × CT:
for > 2.0 × CT:
2
Curve Shapes:
Curve Multiplier:
Reset Type:
Timing Accuracy:
PHASE/NEUTRAL/GROUND IOC
Pickup Level:
Dropout Level:
Level Accuracy:
0.1 to 2.0 × CT rating:
> 2.0 × CT rating
Overreach:
Pickup Delay:
Reset Delay:
Operate Time:
Timing Accuracy:
NEGATIVE SEQUENCE TOC
Current:
Pickup Level:
Dropout Level:
Level Accuracy:
Curve Shapes:
Curve Multiplier (Time Dial): 0.00 to 600.00 in steps of 0.01
Reset Type:
Timing Accuracy:
2-14
Phasor or RMS
0.000 to 30.000 pu in steps of 0.001
97% to 98% of Pickup
±0.5% of reading or ±1% of rated
(whichever is greater)
±1.5% of reading > 2.0 × CT rating
IEEE Moderately/Very/Extremely
Inverse; IEC (and BS) A/B/C and Short
Inverse; GE IAC Inverse, Short/Very/
2
Extremely Inverse; I t; FlexCurve™ (pro-
grammable); Definite Time (0.01 s base
curve)
Time Dial = 0.00 to 600.00 in steps of
0.01
Instantaneous/Timed (per IEEE)
Operate at > 1.03 × Actual Pickup
±3.5% of operate time or ±½ cycle
(whichever is greater)
0.000 to 30.000 pu in steps of 0.001
97 to 98% of Pickup
±0.5% of reading or ±1% of rated
(whichever is greater)
±1.5% of reading
<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)
Phasor
0.000 to 30.000 pu in steps of 0.001
97% to 98% of Pickup
±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
IEEE Moderately/Very/Extremely
Inverse; IEC (and BS) A/B/C and Short
Inverse; GE IAC Inverse, Short/Very/
2
Extremely Inverse; I t; FlexCurve™ (pro-
grammable); Definite Time (0.01 s base
curve)
Instantaneous/Timed (per IEEE) and
Linear
Operate at > 1.03 × Actual Pickup
±3.5% of operate time or ±½ cycle
(whichever is greater)
L90 Line Differential Relay
2 PRODUCT DESCRIPTION
NEGATIVE SEQUENCE 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
< 2 %
Overreach:
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
< 20 ms at 3 × Pickup at 60 Hz
Operate Time:
Operate at 1.5 × Pickup
Timing Accuracy:
±3% or ± 4 ms (whichever is greater)
PHASE DIRECTIONAL OVERCURRENT
°
Relay Connection: 90 (quadrature)
Quadrature Voltage:
ABC Phase Seq.: phase A (V
BC
ACB Phase Seq.: phase A (V
CB
Polarizing Voltage Threshold: 0.000 to 3.000 pu in steps of 0.001
Current Sensitivity Threshold: 0.05 pu
Characteristic Angle: 0 to 359
Angle Accuracy: ±2°
Operation Time (FlexLogic™ Operands):
Tripping (reverse load, forward fault):< 12 ms, typically
Blocking (forward load, reverse fault):< 8 ms, typically
NEUTRAL DIRECTIONAL OVERCURRENT
Directionality: Co-existing forward and reverse
Polarizing: Voltage, Current, Dual
Polarizing Voltage: V_0 or VX
Polarizing Current: IG
Operating Current: I_0
3 × (|I_0| – K × |I_1|), K = 0.0625; IG
Level Sensing:
Characteristic Angle: –90 to 90° in steps of 1
Limit Angle: 40 to 90° in steps of 1, independent for
forward and reverse
Angle Accuracy: ±2°
0.00 to 250.00 Ω in steps of 0.01
Offset Impedance:
Pickup Level: 0.05 to 30.00 pu in steps of 0.01
Dropuot Level: 97 to 98%
< 16 ms at 3 × Pickup at 60 Hz
Operation Time:
BREAKER FAILURE
Mode: 1-pole, 3-pole
Current Supv. Level: Phase, Neutral
Current Supv. Pickup: 0.001 to 30.000 pu in steps of 0.001
Current Supv. DPO: 97 to 98% of Pickup
Current Supv. Accuracy:
0.1 to 2.0 × CT rating: ±0.75% of reading or ±1% of rated
(whichever is greater)
> 2 × CT rating:
±1.5% of reading
), phase B (V ), phase C (V )
CA AB
), phase B (V ), phase C (V )
AC BA
°
in steps of 1
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