Siemens 7SJ85 - Settings

•
Default setting (_:14011:136) V< Threshold = 90.000 V
Parameter: V< Time delay
•
Default setting (_:14011:137) V< Time delay= 0 s
Parameter: I> Blocking
•
Default setting (_:14011:138) I> Blocking = on
Parameter: I> Threshold
•
Default setting (_:14011:139) I> Threshold = 150 %
Parameter: I> Time delay
•
Default setting (_:14011:140) I> Time delay= 0 s
If the load current exceeds the threshold value I> Threshold for the time I> Time delay, the overcur-
rent blocking prevents changing to a higher or lower tap. Set the threshold value I> Threshold in % in rela-
tion to the rated current. To do this, set the parameter I reference for % values.
Parameter: I< Blocking
•
Default setting (_:14011:141) I< Blocking = off
Parameter: I< Threshold
•
Default setting (_:14011:142) I< Threshold = 10 %
Parameter: I< Time delay
•
Default setting (_:14011:143) I< Time delay = 10 s
If the load current drops below the threshold value I< Threshold for the time I< Time delay, the under-
current blocking prevents changing to a higher or lower tap. Set the threshold value I< Threshold in % in
relation to the rated current. To do this, set the parameter I reference for % values.
Blockings for Three-Winding Transformers and Grid Coupling Transformers
Parameter: V< Threshold w1
•
Default setting (_:136) V< Threshold w1 = 90.000 V
Parameter: V< Threshold w2
•
Default setting (_:150) V< Threshold w2 = 90.000 V
Settings
Two-Winding Transformer
Addr.
Parameter C Setting Options Default Setting
Ref. for %-values
_:2311:101 General:Rated current 0.20 A to 100000.00 A 1000.00 A
_:2311:102 General:Rated voltage 0.20 kV to 1200.00 kV 400.00 kV
Tap changer
_:13981:111 Tap changer:Maximum
output time
0.02 s to 1800.00 s 1.50 s
_:13981:112 Tap changer:Supervision
behavior
•
off
•
warning
•
alarm block
alarm block
_:13981:113 Tap changer:Motor
supervision time
5 s to 100 s 10 s
_:13981:116 Tap changer:Highest tap
changer pos.
•
Lowest voltage tap
•
Highest voltage tap
Lowest voltage
tap
_:13981:114 Tap changer:Lowest tap
position
-64 to 64 1
8.9.5
Control Functions
8.9 Voltage Controller
1222 SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017