GE L30 Instruction Manual page 42

SPECIFICATIONS
Reset delay:
Operate time:
Timer accuracy:
NEGATIVE SEQUENCE TOC
Current:
Pickup level:
2
Dropout level:
Level accuracy:
Curve shapes:
Curve multiplier (Time dial):
Reset type:
Curve timing accuracy
at 1.03 to 20 x pickup:
NEGATIVE SEQUENCE IOC
Current:
Pickup level:
Dropout level:
Level accuracy:
Overreach:
Pickup delay:
Reset delay:
Operate time:
Timer accuracy:
PHASE DIRECTIONAL OVERCURRENT
Relay connection:
Quadrature voltage:
Polarizing voltage threshold:
Current sensitivity threshold:
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:
2-28
0.00 to 600.00 s in steps of 0.01
<16 ms at 3 × pickup at 60 Hz (Phase/Ground IOC)
<20 ms at 3 × pickup at 60 Hz (Neutral IOC)
±3% of operate time or ±1/4 cycle (whichever is greater)
Phasor
0.020 to 30.000 pu in steps of 0.001
97% to 98% of pickup
±0.5% of reading or ±0.4% of rated (whichever 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,
2
Short/Very/ Extremely Inverse; I t; FlexCurves™ (programmable); Definite Time (0.01 s base
curve)
0.00 to 600.00 in steps of 0.01
Instantaneous/Timed (per IEEE) and Linear
±3.5% of operate time or ±½ cycle (whichever is greater) from pickup to operate
Phasor
0.020 to 30.000 pu in steps of 0.001
97 to 98% of pickup
0.1 to 2.0 × CT rating: ±0.5% of reading or ±0.4% of rated (whichever is greater); >2.0 × CT rating:
±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
±3% of operate time or ±1/4 cycle (whichever is greater)
°
90 (quadrature)
ABC phase seq.: phase A (V ), phase B (V
BC
B (V ), phase C (V )
AC BA
0.004 to 3.000 pu in steps of 0.001
0.05 pu
°
0 to 359 in steps of 1
±2°
Co-existing forward and reverse
Voltage, Current, Dual, Dual-V, Dual-I
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%
L30 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
CHAPTER 2: PRODUCT DESCRIPTION
), phase C (V ); ACB phase seq.: phase A (V
CA AB
), phase
CB