Siemens siprotec 7SJ63 Instruction Manual page 241

" &ÃWQCÃH6Y
" %ÃWQCÃHDI
V<
V
a
V
b
V
c
V
0
" $Ã%&I†!Ã9DS@8U
I‚9v…
AqSr‰
"1"
&
" !!Ã%&I† Ã9DS@8U
AqSr‰
I‚9v…
"1"
I
Ns
 " ÃTr†@ÃAhˆy‡
9rsvv‡rÃUv€rÃ
V†r…Ã9rs8ˆ…‰r†
3I < 1.6 A
0
F# 1201
>BLOCK 64
F# 1202
>BLOCK 50Ns-2
F# 1203
>BLOCK 50Ns-1
F# 1204
>BLOCK 51Ns
From
Alarm Only
Figure
Reset Measuring Device
6-34
Figure 6-35 Logic Diagram for Sensitive Ground Fault Detection
7SJ63 Manual
C53000-G1140-C120-1
V>
V<
V>
V<
V>
V<
V>
" ÃU9@G6`ÃQvpxˆƒ
0 T
or
=
Direction
Determination
=
or
or
50Ns-2
50Ns-2
50Ns-1/51Ns
50Ns-1
51Ns
" "ÃQVÃ8SDU@SD6
WtqÃ6I9ÃDI†
WtqÃPSÃDI†
„1"
&
&
&
&
or
&
&
&
&
&
&
Measurement Logic
Functions
F# 1272
Sens.Gnd Ph A PU
F# 1273
Sens.Gnd Ph B PU
F# 1274
Sens.Gnd Ph C PU
F# 1271
& Sens.Gnd Gnd PU
F# 1215
64 Pickup
" !Ã%# Ã9@G6`
F# 1217
0 T
64 TRIP
&
" !%ÃS@T@UÃ9@G6`
F# 1276
SensGnd Forward
0 T
F# 1277
SensGnd Reverse
F# 1278
SensGnd Dir undef.
F# 1221
50Ns-2 Pickup
" #Ã$I†!Ã9@G6`
F# 1223
0 T
50Ns-2 TRIP
&
F# 1224
50Ns-1 Pickup
" 'Ã$I† Ã9@G6`
F# 1226
0 T
50Ns-1 TRIP
&
F# 1227
51Ns Pickup
" !Ã$ I†ÃUDH@Ã9D6G
F# 1229
51Ns TRIP
&
6-77