Siemens 6MD85, Manual

Page: 870 / 1256

Normally, the pickups of protection functions and stages with high fault current are selected:
•
Overcurrent protection (phase and ground)
A specific protection stage is generally used. This can be one of the protection stages provided for the protec-
tion application, which itself trips with a delay. An additional protection stage with settings optimized for this
use case, for example, increased threshold value and blocking of self-tripping, can also be used.
Parameter: Operate delay
•
Recommended setting value
(_:5941:6) Operate delay
=
0.00 s
When switching onto a fault, the tripping should usually be instantaneous. The tripping delay is therefore set
to 0.
Settings
Addr. Parameter C Setting Options Default Setting
Stage 1
_:5941:1 Stage 1:Mode
•
off
•
on
•
test
off
_:5941:2 Stage 1:Operate & flt.rec.
blocked
•
no
•
yes
no
_:5941:6 Stage 1:Operate delay 0.00 s to 60.00 s 0.00 s
_:5941:102 Stage 1:Configuration Setting options depend on config-
uration
Information List
No. Information Data Class
(Type) Type
Group indicat.
_:4501:55 Group indicat.:Pickup ACD O
_:4501:57 Group indicat.:Operate ACT O
Stage 1
_:5941:81 Stage 1:>Block stage SPS I
_:5941:54 Stage 1:Inactive SPS O
_:5941:52 Stage 1:Behavior ENS O
_:5941:53 Stage 1:Health ENS O
_:5941:55 Stage 1:Pickup ACD O
_:5941:57 Stage 1:Operate ACT O
7.24.5
7.24.6
Protection and Automation Functions
7.24 Instantaneous Tripping at Switch onto Fault
870 SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017