GE D60 Instruction Manual page 49

2 PRODUCT DESCRIPTION
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 ±0.4% 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)
Timer accuracy: ±3% of operate time or ±1/4 cycle
(whichever is greater)
NEGATIVE SEQUENCE TOC
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 ±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
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
Curve timing accuracy
at 1.03 to 20 x pickup: ±3.5% of operate time or ±½ cycle
(whichever is greater) from pickup to
operate
NEGATIVE SEQUENCE IOC
Pickup level: 0.000 to 30.000 pu in steps of 0.001
Dropout level: 97 to 98% of pickup
0.1 to 2.0  CT rating: ±0.5% of reading
Level accuracy:
or ±0.4% 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:
Timer accuracy: ±3% of operate time or ±1/4 cycle
(whichever is greater)
GE Multilin
PHASE DIRECTIONAL OVERCURRENT
Relay connection:
Quadrature voltage:
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):
NEUTRAL DIRECTIONAL OVERCURRENT
Directionality:
Polarizing:
Polarizing voltage:
Polarizing current:
Operating current:
Level sensing:
Restraint, K:
Characteristic angle:
Limit angle:
2
t; FlexCurves™
Angle accuracy:
Offset impedance:
Pickup level:
Dropout level:
Operation time:
NEGATIVE SEQUENCE DIRECTIONAL OC
Directionality:
Polarizing:
Polarizing voltage:
Operating current:
Level sensing:
Restraint, K:
Characteristic angle:
Limit angle:
Angle accuracy:
Offset impedance:
Pickup level:
Dropout level:
Operation time:
D60 Line Distance Protection System
2.3 SPECIFICATIONS
°
90 (quadrature)
ABC phase seq.: phase A (V ), phase
BC
B (V ), phase C (V ); ACB phase
CA AB
seq.: phase A (V ), phase B (V
CB AC
phase C (V )
BA
°
0 to 359 in steps of 1
±2°
Tripping (reverse load, forward fault):
12 ms, typically
Blocking (forward load, reverse fault):
8 ms, typically
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  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
Co-existing forward and reverse
Voltage
V_2
I_2
Zero-sequence:|I_0| – K  |I_1|
Negative-sequence:|I_2| – K  |I_1|
0.000 to 0.500 in steps of 0.001
0 to 90° in steps of 1
40 to 90° in steps of 1, independent for
forward and reverse
±2°
0.00 to 250.00  in steps of 0.01
0.015 to 30.000 pu in steps of 0.01
97 to 98%
<16 ms at 3  pickup at 60 Hz
),
2
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