Siemens Siprotec 7SD600, Системное руководство

Страница: 167 / 174

1XPHULFDO /LQH 'LIIHUHQWLDO 3URWHFWLRQ 6,3527(& 6' 9 s 6\VWHP 0DQXDO 2UGHU QR (*&$
$SSHQGL[
$
$
6LHPHQV $* ¼ $XJXVW
7KH RSHUDWLRQDO DFFXUDF\ OLPLWLQJ IDFWRU IRU WKH UH
VSHFWLYH OLQH HQG PXVW EH FDOFXODWHG ZLWK IRUPXOD
7KH SURWHFWLRQ LV VWDEOH ZKHQ WKH RSHUDWLRQDO DFFX
UDF\ OLPLWLQJ IDFWRU IRU OLQH HQG LV JUHDWHU WKDQ WKH
QHFHVVDU\ RSHUDWLRQDO DFFXUDF\ OLPLWLQJ IDFWRU NQ n
FDOFXODWHG ZLWK FRQGLWLRQ 7KH VDPH DSSOLHV IRU
OLQH HQG ZLWK NQ n
7KH FRQGLWLRQ IRU VWDELOLW\ LV WKHUHIRUH
Q n ! NQ n DQG Q n ! NQ n
([DPSOH H[SODLQV WKH VLWXDWLRQ
0D[LPXP WKURXJK IDXOW FXUUHQW
,
NG PD[
$
/LQH HQG
&XUUHQW WUDQVIRUPHU 3 9$
5DWHG DFFXUDF\ OLPLWLQJ IDFWRU Q
5DWHG EXUGHQ RI WKH FXUUHQW WUDQVIRUPHU
3
1
9$
,QWHUQDO EXUGHQ RI WKH FXUUHQW WUDQVIRUPHU
3
(
9$
&RQQHFWHG EXUGHQ VXPPDWLRQ WUDQVIRUPHU
FRQQHFWLQJ FDEOH 3
Z
9$
3ULPDU\ UDWHG FXUUHQW RI WKH WUDQVIRUPHU
,
1SU
$
:LWK WKH RSHUDWLRQDO DFFXUDF\ OLPLWLQJ IDFWRU LV
FDOFXODWHG DW Q n
/LQH HQG
&XUUHQW WUDQVIRUPHU 3 9$
5DWHG DFFXUDF\ OLPLWLQJ IDFWRU Q
5DWHG EXUGHQ RI WKH FXUUHQW WUDQVIRUPHU
3
1
9$
,QWHUQDO EXUGHQ RI WKH FXUUHQW WUDQVIRUPHU
3
(
9$
&RQQHFWHG EXUGHQ VXPPDWLRQ WUDQVIRUPHU
FRQQHFWLQJ FDEOH 3
Z
9$
3ULPDU\ UDWHG FXUUHQW RI WKH WUDQVIRUPHU
,
1SU
$
:LWK WKH RSHUDWLRQDO DFFXUDF\ OLPLWLQJ IDFWRU LV
FDOFXODWHG DW Q n
7KH UDWLR RI WKH RSHUDWLRQDO DFFXUDF\ OLPLWLQJ IDFWRUV
Q nQ n YLRODWHV FRQGLWLRQ EHFDXVH WKH FXUUHQW
WUDQVIRUPHUV DUH WRR GLIIHUHQW &RQGLWLRQ LV VDWLVILHG
LH WKH PD[LPXP VWHDG\VWDWH IDXOW FXUUHQW N n LV
WUDQVPLWWHG ZLWKRXW VDWXUDWLRQ ,Q WKH FODVVLF
GLPHQVLRQLQJ QR VWDWHPHQW FRXOG EH PDGH DERXW WKH
VWDELOLW\ RI WKH SURWHFWLRQ OD\RXW XQGHU WUDQVLHQW
FRQGLWLRQV
&RQGLWLRQ PXVW EH FKHFNHG DGGLWLRQDOO\ WR REWDLQ
D VWDWHPHQW RQ WKH VWDELOLW\ RI WKH SURWHFWLRQ OD\RXW
N
n N n ,
NG PD[
,
1SU
$ $
:LWK WDEOH $ WKH QHFHVVDU\ RSHUDWLRQDO DFFXUDF\
OLPLWLQJ IDFWRU LV JLYHQ IRU WKH VDWXUDWLRQIUHH WLPH DQG
WLPHV WKH &7 UDWHG FXUUHQW IORZLQJ IRU OLQH HQG
DQG OLQH HQG :LWK WKH &7 GDWD RI H[DPSOH DQG
WKH QHWZRUN WLPH FRQVWDQW RI V WKH IDFWRU <
NQ
n NQ n
7KH FDOFXODWHG RSHUDWLRQDO DFFXUDF\ OLPLWLQJ IDFWRUV
Q n IRU OLQH HQG DQG Q n DUH UHVSHFWLYHO\
DERYH WKH QHFHVVDU\ DFFXUDF\ OLPLW RYHUFXUUHQW IDFWRU
VR WKDW WKH GLIIHUHQWLDO SURWHFWLRQ OD\RXW FDQ SURYLGH
VWDEOH RSHUDWLRQ GHVSLWH YHU\ GLIIHUHQW FXUUHQW WUDQV
IRUPHUV GXULQJ H[WHUQDO VKRUWFLUFXLWV EHFDXVH D VDWX
UDWLRQIUHH WLPH RI PV LV IXOILOOHG RQ ERWK OLQH HQGV