GE D30 Instruction Manual page 38

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 Ω):
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:
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).
35
30
25
20
15
10
5
0
2-8
Mho (memory polarized or offset) or
Quad (memory polarized or non-direc-
tional), selectable individually per zone
current
3
forward, reverse, or non-directional per
zone
0.02 to 500.00 Ω 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
Ground Element (21G)
0% 10% 20% 30%
Fault Location [%]
D30 Line Distance Relay
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):
Operation time:
Reset time:
40% 50% 60% 70%
2 PRODUCT DESCRIPTION
–90 to 90° in steps of 1
0.02 to 500 Ω in steps of 0.01
60 to 90° in steps of 1
0.02 to 500 Ω 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
1 to 1.5 cycles (typical)
1 power cycle (typical)
SIR = 0.1
SIR = 1
SIR = 10
SIR = 20
SIR = 30
80%
837718A1.CDR
GE Multilin