Siemens SIPROTEC 7SJ62 Instruction Manual page 228

Functions
6-88
Schieflast-
t Warnstufe I
46-1
T
I2>
46-2
T
I2>>
46-1
I >
2
Figure 6-41 Inverse Time Characteristic for Negative Sequence Protection
 #Ã#%
9v†hiyrq
UP8Ã6ITDUP8ÃD@8
I
2
9rsvv‡rÃUv€ry’
F# 5143
>BLOCK 46
# ÃA8UÃ#%
PI
"1" PAA
Figure 6-42 Logic Diagram for Negative Sequence Protection
Disk emulation offers advantages when the negative sequence protection must be co-
ordinated with conventional source side relays.
2>
Negative Sequence Warning Level
Auslösebereich Tripping Area
thermische
Thermal Protection
Auslösestufe
1,1 x I
2P
#&Ã#%Ã6ITDÃ8VSW@
# Ã#%UP8ÃU9
#'Ã#%UP8ÃQV
#"Ã#% Ã9@G
#!Ã#% ÃQD8FVQ
#$Ã#%!Ã9@G6`
##Ã#%!ÃQD8FVQ
Measurement/Logic
or
or
Schieflast-
Severe Imbalance
Auslösestufe I
2>>
Protecion
46-2
I
I >>
2 2
F# 5166
46-TOC picked up
F# 5165
46-1 picked up
F# 5170
0 T
46 TRIP
or
0 T
F# 5159
46-2 picked up
F# 5152
46 BLOCKED
F# 5153
46 ACTIVE
F# 5151
46 OFF
7SJ62 Manual
C53000-G1140-C121-1