GE D30 series Instruction Manual page 40

2.2 SPECIFICATIONS
GROUND DISTANCE
Characteristic:
Reactance polarization: negative-sequence or zero-sequence
Non-homogeneity angle: –40 to 40° in steps of 1
2
Number of zones:
Directionality:
Reach (secondary ):
Distance characteristic angle: 30 to 90° in steps of 1
Distance comparator limit angle: 30 to 90° in steps of 1
Directional supervision:
Characteristic angle:
Limit angle:
Zero-sequence compensation
Z0/Z1 magnitude:
Z0/Z1 angle:
Zero-sequence mutual compensation
Z0M/Z1 magnitude:
Z0M/Z1 angle:
Right blinder (Quad only):
Reach:
Characteristic angle:
Left blinder (Quad only):
Reach:
Characteristic angle:
Time delay:
Timing accuracy:
Current supervision:
Level:
Pickup:
Dropout:
Memory duration:
Voltage supervision pickup (series compensation applications):
2-10
Mho (memory polarized or offset) or
Quad (memory polarized or non-direc-
tional), selectable individually per zone
current
5
forward, reverse, or non-directional per
zone
0.02 to 500.00  in steps of 0.01
30 to 90° in steps of 1
30 to 90° in steps of 1
0.00 to 10.00 in steps of 0.01
–90 to 90° in steps of 1
0.00 to 7.00 in steps of 0.01
–90 to 90° in steps of 1
0.02 to 500  in steps of 0.01
60 to 90° in steps of 1
0.02 to 500  in steps of 0.01
60 to 90° in steps of 1
0.000 to 65.535 s in steps of 0.001
±3% or 4 ms, whichever is greater
neutral current (3I_0)
0.050 to 30.000 pu in steps of 0.001
97 to 98%
5 to 25 cycles in steps of 1
0 to 5.000 pu in steps of 0.001
D30 Line Distance Protection System
2 PRODUCT DESCRIPTION
GROUND DISTANCE OPERATING TIME CURVES
The operating times are response times of a microprocessor part
of the relay. See output contacts specifications for estimation of
the total response time for a particular application. The operating
times are average times including variables such as fault inception
angle or type of a voltage source (magnetic VTs and CVTs).
Ground Element (21G)
35
30
25
20
15
10
5
0
0% 10% 20% 30% 40%
Fault Location [%]
LINE PICKUP
Phase instantaneous overcurrent: 0.000 to 30.000 pu
Undervoltage pickup: 0.000 to 3.000 pu
Overvoltage delay: 0.000 to 65.535 s
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 ±0.4% 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)
Operate at > 1.03  actual pickup
Timing accuracy:
±3.5% of operate time or ±½ cycle
(whichever is greater)
SIR = 0.1
SIR = 1
SIR = 10
SIR = 20
SIR = 30
50% 60% 70% 80%
837718A1.CDR
2
t; FlexCurves™
GE Multilin