With the parameter Blk. w. inrush curr. detect., the stage can be stabilized against tripping on
transformer-inrush currents. If transformers are parts of the protection zones, set this parameter to yes.
Settings
Addr. Parameter C Setting Options Default Setting
Inverse-T #
_:1 Inverse-T #:Mode
•
off
•
on
•
test
off
_:2 Inverse-T #:Operate &
flt.rec. blocked
•
no
•
yes
no
_:3 Inverse-T #:Threshold 5.0 % to 999.9 % 10.0 %
_:104 Inverse-T #:Blk. w. inrush
curr. detect.
•
no
•
yes
no
_:105 Inverse-T #:Type of char-
acter. curve
_:106 Inverse-T #:Reset
•
instantaneous
•
disk emulation
disk emulation
_:107 Inverse-T #:Time dial 0.05 to 15.00 1.00
Information List
No.
Information Data Class
(Type)
Type
Inverse-T #
_:81 Inverse-T #:>Block stage SPS I
_:52 Inverse-T #:Behavior ENS O
_:53 Inverse-T #:Health ENS O
_:54 Inverse-T #:Inactive SPS O
_:56 Inverse-T #:Operate delay expired ACT O
_:300 Inverse-T #:Inrush blocks operate ACT O
_:59 Inverse-T #:Disk emulation running SPS O
_:55 Inverse-T #:Pickup ACD O
_:57 Inverse-T #:Operate ACT O
6.17.5.3
6.17.5.4
Protection and Automation Functions
6.17 Negative-Sequence Protection
SIPROTEC 5, Overcurrent Protection, Manual 641
C53000-G5040-C017-8, Edition 07.2017
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