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Technical Data
12.18 Sensitive Ground-Fault Detection
Dropout time
Directional Transient Ground-Fault Stage
12.18.3
Setting Values
Threshold
value 3I0>
Threshold value V0>
Maximum operational V0
Dropout delay
Tripping delay
Dropout
The greater dropout differential (= | pickup value – dropout value |) of the following 2 criteria
applies:
Dropout differential derived from the parameter Dropout ratio
If this parameter is not available, a dropout ratio of 95 % applies for overcurrent/overvoltage and of 105 % for
undercurrent/undervoltage functionality.
Minimum absolute dropout differential
Protection-class current transformer
Instrument current transformer
Voltage transformer
Times
Operate time with time delay = 0 ms
Dropout time
Directional 3I0 Stage with φ(V0,3I0) Measurement
12.18.4
Setting Values
Threshold value
3I0>
96
OOT (Output Operating Time): additional delay of the output medium used, see chapter
1478
Protection-class
For I
ph-rated
current transformers
1 A
For I
ph-rated
5 A
Sensitive current
I
N-rated
transformer for I
I
N
N-rated
Protection-class
For I
current transformers
For I
For I
transformer type
For I
N
sensitive
For I
and I
= 1 A
N-rated
Approx. 32 ms + OOT at 50 Hz
Approx. 27 ms + OOT at 60 Hz
=
0.000 A to 35.000 A
=
0.00 A to 175.00 A
= 1 A
0.000 A to 1.600 A
= 5 A
0.000 A to 8.000 A
0.300 V to 200.000 V
0.300 V to 200.000 V
0.00 s to 60.00 s
0.00 s to 60.00 s
15 mA sec. (I
rated
75 mA sec. (I
rated
0.5 mA sec. (I
rated
2.5 mA sec. (I
rated
150 mV sec.
Approx. 115 ms + OOT
Approx. 112 ms + OOT at 60 Hz
Approx. 20 ms + OOT at 50 Hz
Approx. 15 ms + OOT at 60 Hz
= 1 A
0.030 A to 35.000 A
ph-rated
= 5 A
0.15 A to 175.00 A
ph-rated
= 1 A
0.001 A to 35.000 A
ph-rated
= 5 A
0.001 A to 175.000 A
ph-rated
12.1.4 Relay Outputs
SIPROTEC 5, Overcurrent Protection, Manual
Increments of 0.001 A
Increments of 0.01 A
Increments of 0.001 A
Increments of 0.001 A
Increments of 0.001 V
Increments of 0.001 V
Increments of 0.01 s
Increments of 0.01 s
= 1 A) or
= 5 A)
= 1 A) or
= 5 A)
96
at 50 Hz
Increments of 0.001 A
Increments of 0.01 A
Increments of 0.001 A
Increments of 0.001 A
C53000-G5040-C017-8, Edition 07.2017
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