Pickup delay 0.00 s to 60.00 s Increments of 0.01 s
Operate delay 0.00 s to 60.00 s Increments of 0.01 s
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 the overvoltage and of 105 % for the
undervoltage functionality.
Minimum absolute dropout differential 150 mV sec.
Times
Operate time with time delay = 0 ms
Approx. 32 ms + OOT
103
at 50 Hz
Approx. 29 ms + OOT at 60 Hz
Extension of operate time during operation with
transformer inrush-current detection
Approx. 10 ms
Dropout time Approx. 32 ms + OOT at 50 Hz
Approx. 27 ms + OOT at 60 Hz
Current Operating Range
Minimum 3I0 threshold
for Y0 calculation
Protection-class current
transformers
30 mA sec. (I
rated
= 1 A)
150 mA sec. (I
rated
= 5 A)
Sensitive current trans-
former
1 mA sec. (I
rated
= 1 A)
5 mA sec. (I
rated
= 5 A)
Tolerances
Admittance
1 % of the setting value or 0.05 mS (I
rated
= 1.6 A) or
0.25 mS (I
rated
= 8 A), (f
rated
± 10 %)
Pulse-Pattern Detection Stage
Setting Values
V0> threshold value
0.300 V to
200.000 V
Increments of 0.001 V
3I0> threshold
value
Protection-class
current trans-
formers
For I
ph-rated
= 1 A 0.030 A to
35.000 A
Increments of 0.001 A
For I
ph-rated
= 5 A 0.15 A to 175.00 A Increments of 0.01 A
For I
N
transformer
type sensitive and
I
N-rated
= 1 A
For I
ph-rated
= 1 A 0.001 A to
35.000 A
Increments of 0.001 A
For I
ph-rated
= 5 A 0.001 A to
175.000 A
Increments of 0.001 A
For I
N
transformer
type sensitive and
I
N-rated
= 5 A
For I
ph-rated
= 1 A 0.005 A to
35.000 A
Increments of 0.001 A
For I
ph-rated
= 5 A 0.005 A to
175.000 A
Increments of 0.001 A
12.18.10
103
OOT (Output Operating Time): additional delay of the output medium used, see chapter 12.1.4 Relay Outputs
Technical Data
12.18 Sensitive Ground-Fault Detection
1484 SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017
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