Siemens SIPROTEC 7SA511 Instruction Manual page 199

6$
9
    7  % / 2 & .
    V
    & % "
< ( 6
1 2
    & % "
& % " 1 ( 9 ( 5
& % " : , 7 +
& % " : , 7 +
    7  & %  6 8 3 9
    V
   6 < 1  5 ( 4 8 6 7
% ( ) 2 5 (
2 1 / < % ( ) 2 5 (
% ( ) 2 5 (
1 ( 9 ( 5
)RU 5$5 ILUVW DXWRUHFORVH F\FOH  VHYHUDO SURJUDPV
DUH SRVVLEOH DGGUHVV  WKUHHSROH VLQJOH
SROH RU VLQJOH DQG WKUHHSROH
,I WKH 8 SURFHVVLQJ IHDWXUH LV XVHG IRU LGHQWLILFD

WLRQ RI WKH IDXOW\ OLQH WKHQ DGGUHVV  PXVW EH
FKDQJHG DFFRUGLQJO\ RWKHUZLVH LW UHPDLQV LQ SRVL
WLRQ 8 352& ,1())(&7,9( 7KLV IHDWXUH LV H[
SODLQHG LQ GHWDLO LQ VHFWLRQ  ,W PXVW EH HQVXUHG
WKDW RQO\ RQH HQG RI WKH OLQH PXVW EH SDUDPHWHUL]HG
8 352&  32/( :,7+ 8 LH VLQJOHSROH
DXWRUHFORVXUH ZLWK 8

LV VHW 8 352&  32/( :2 8 LH VLQJOHSROH
&*& 
0 &
  7 5 , 3
& / 2 6 (
( $ & + $ 5
 Q G $ 5
 3 2 / ( $ 5
' $ 5
 Q G ' $ 5
LQWHUURJDWLRQ  7KH RWKHU HQG
5HFODLP WLPH DIWHU PDQXDO FORVLQJ RI FLUFXLW EUHDNHU
6PDOOHVW VHWWLQJ YDOXH
/DUJHVW VHWWLQJ YDOXH
&% UHDG\ LQWHUURJDWLRQ DW WKH ILUVW WULS FRPPDQG
<(6  QRUPDO VHWWLQJ
12  RQO\ LI WKHUH LV QR SRVVLELOLW\ WR LQWHUURJDWH &%
UHDGLQHVV
&% UHDG\ LQWHUURJDWLRQ EHIRUH UHFORVLQJ
1(9(5 QR &% UHDG\ LQWHUURJDWLRQ EH
IRUH UHFORVLQJ
:,7+ ($&+ $5 &% UHDG\ LQWHUURJDWLRQ EHIRUH
HDFK UHFORVLQJ
:,7+ ($&+ QG $5 &% UHDG\ LQWHUURJDWLRQ EHIRUH
QG WK WK HWF UHFORVLQJ
5$5 RU '$5
&% VXSHUYLVLRQ WLPH ZLWKLQ ZKLFK &% PXVW EH UHDG\
6PDOOHVW VHWWLQJ YDOXH
/DUJHVW VHWWLQJ YDOXH
5HTXHVW IRU V\QFKURQLVP RU YROWDJH FKHFN LQWHUQDO RU
H[WHUQDO LV PDGH
 EHIRUH HYHU\ UHFORVH DIWHU WKUHHSROH WULSSLQJ
 RQO\ EHIRUH UHFORVH GXULQJ '$5
 RQO\ EHIRUH UHFORVH GXULQJ '$5 IURP WKH QG
'$5 VKRW RQ
 QR UHTXHVW IRU V\QFKURFKHFN
DXWRUHFORVXUH ZLWKRXW 8
LPPHGLDWH UHFORVXUH RI WKH KHDOWK\ OLQHV VKRXOG EH
XVHG ERWK OLQH HQGV FDQ EH VHW WR 8 352&
 32/( :2 8 $GGUHVV  VHH EHORZ PXVW
EH REVHUYHG IRU LPPHGLDWH UHFORVXUH RI WKH XQ
IDXOWHG OLQHV WRR
:KHQ VHWWLQJ WKH DFWLRQ WLPH 5$5 7$&7 DGGUHVV
  LW PXVW EH HQVXUHG WKDW WKLV WLPH LV DW OHDVW DV
ORQJ DV WKH FRPPDQG WLPH RI WKH SURWHFWLYH UHOD\ LQ
FOXGLQJ DQ\ SRVVLEOH VLJQDO WUDQVPLVVLRQ WLPHV EXW
VPDOOHU WKDQ WKH GHOD\ 7 RI WKH VHFRQG GLVWDQFH
]RQH XVXDOO\  V 
2SHUDWLQJ LQVWUXFWLRQV
 V
 V
 V
 V
LQWHUURJDWLRQ  ,I RQO\ WKH