Siemens SIPROTEC 7SJ600 - Page 110

2SHUDWLQJ LQVWUXFWLRQV6-
9
&*&

 6HWWLQJV IRU DXWRUHFORVXUH  DGGUHVV EORFN 
$XWRUHFORVH IXQFWLRQ LV HIIHFWLYH RQO\ LI LW LV LQFRUSR
UDWHG LQ WKH UHOD\ DQG FRQILJXUHG DV (;,67 UHIHU WR
6HFWLRQ 
,I QR DXWRUHFORVXUH LV WR EH FDUULHG RXW RQ WKH IHHGHU
ZKLFK LV SURWHFWHG E\ WKH WLPH RYHUFXUUHQW SURWHF
WLRQ UHOD\ HJ FDEOHV WUDQVIRUPHUV PRWRUV HWF
WKHQ WKH LQWHUQDO $5 IXQFWLRQ PXVW EH FRQILJXUHG DV
QRQ(;,67 UHIHU WR 6HFWLRQ  7KH $5 IXQFWLRQ LV
WKHQ QRW HIIHFWLYH DW DOO LH 6- GRHV QRW SURFHVV
WKH $5 IXQFWLRQ 1R FRUUHVSRQGLQJ DQQXQFLDWLRQV
DUH JLYHQ ELQDU\ LQSXWV IRU DXWRUHFORVXUH DUH LJ
QRUHG $OO SDUDPHWHUV LQ EORFN  DUH LUUHOHYDQW DQG
XQDYDLODEOH
,I DXWRUHFORVXUH LV WR EH FDUULHG RXW RQ WKH IHHGHU
ZKLFK LV SURWHFWHG E\ WKH WLPH RYHUFXUUHQW SURWHF
WLRQ UHOD\ WKHQ WKH VWDJHV ,!! ,!!! DQG ,
(
!! DUH
XVHG IRU UDSLG WULS EHIRUH WKH ILUVW UHFORVXUH 7KHUHDI
WHU WKHVH VWDJHV DUH EORFNHG LQ RUGHU WR DOORZ VHOHF
WLYH GHOD\HG WULSSLQJ LQ DFFRUGDQFH ZLWK WKH WLPH
JUDGLQJ SODQ RI WKH V\VWHP
6- DOORZV XS WR QLQH DXWRUHFORVH DWWHPSWV WR
EH FDUULHG RXW 7KH QXPEHU RI GHVLUHG DXWRUHFOR
VXUH DWWHPSWV LV VHW DV $5FQW
7KH GHDG WLPHV FDQ EH VHSDUDWHO\ DQG LQGLYLGXDOO\
VHW IRU WKH ILUVW WKUHH DXWRUHFORVXUH F\FOHV $5 7
$5 7 DQG $5 7 ,I IXUWKHU DXWRUHFORVXUH DWWHPSWV
DUH UHTXLUHG WKH\ RSHUDWH ZLWK WKH GHDG WLPH $5 7
7KH GXUDWLRQ RI WKH GHDG WLPHV LV GHWHUPLQHG E\ WKH
DSSOLFDWLRQ SKLORVRSK\ )RU ORQJHU OLQHV LW VKRXOG EH
ORQJ HQRXJK WR HQVXUH WKDW WKH IDXOW DUF LV H[WLQ
JXLVKHG DQG WKH DLU VXUURXQGLQJ WKH DUF LV GHLRQ
L]HG VR WKDW DXWRUHFORVXUH FDQ EH VXFFHVVIXO  V
WR  V :LWK PXOWLSOHHQG IHG OLQHV WKH VWDELOLW\ RI
WKH QHWZRUN LV WKH LPSRUWDQW FRQVLGHUDWLRQ 6LQFH
WKH GLVFRQQHFWHG OLQH FDQ QR ORQJHU SURGXFH DQ\
V\QFKURQL]LQJ SRZHU RQO\ D VKRUW GHDG WLPH LV SHU
PLWWHG LQ PRVW FDVHV &RQYHQWLRQDO YDOXHV OLH EH
WZHHQ  V DQG  V ,Q UDGLDO QHWZRUNV ORQJHU
GHDG WLPHV FDQ EH WROHUDWHG
7KH UHFODLP WLPH 75(& LV WKH WLPH SHULRG DIWHU
ZKLFK WKH QHWZRUN IDXOW LV VXSSRVHG WR EH WHUPL
QDWHG DIWHU D VXFFHVVIXO
DXWRUHFORVH F\FOH $ UH
QHZHG $5 LQLWLDWLRQ ZLWKLQ WKLV WLPH LQFUHPHQWV WKH
$5 FRXQWHU ZKHQ PXOWLVKRW $5 LV XVHG VR WKDW WKH
QH[W $5 F\FOH VWDUWV LI QR IXUWKHU $5 LV DOORZHG WKH
ODVW $5 LV WUHDWHG DV XQVXFFHVVIXO 7KH UHFODLP WLPH
PXVW EH VHW ORQJHU WKDQ WKH H[SHFWHG WLPH IRU D UH
QHZHG LQLWLDWLRQ FRQGLWLRQ RI D SHUVLVWHQW IDXOW LH
QRUPDOO\ ORQJHU WKDQ WKH PD[LPXP WULS WLPH RI WKH
RYHUFXUUHQW WLPH SURWHFWLRQ
7KH ORFNRXW WLPH 7/2& LV WKH WLPH SHULRG GXULQJ
ZKLFK DIWHU DQ XQVXFFHVVIXO
DXWRUHFORVXUH IXUWKHU
UHFORVXUHV E\ 6- DUH ORFNHG 7KLV WLPH PXVW EH
ORQJHU WKDQ WKH UHQHZHG UHDGLQHVV IRU RSHUDWLRQ RI
WKH FLUFXLW EUHDNHU
7KH EORFNLQJ WLPH DIWHU PDQXDO FORVXUH RI WKH EUHDN
HU 7%/0 PXVW FRYHU WKH WLPH IRU VDIH FORVLQJ DQG
RSHQLQJ RI WKH FLUFXLW EUHDNHU  V WR  V ,I D UH
QHZHG LQLWLDWLRQ FRQGLWLRQ DSSHDUV ZLWKLQ WKLV WLPH
GHILQLWLYH WULS FRPPDQG LV LVVXHG DQG UHFORVXUH LV
EORFNHG
7KH GXUDWLRQ RI WKH FORVLQJ FRPPDQG KDV DOUHDG\
EHHQ VHW ZKHQ VHWWLQJ WKH JHQHUDO SDUDPHWHUV RI WKH
GHYLFH VHH 6HFWLRQ 
>@
%HJLQQLQJ RI WKH EORFN kLQWHUQDO DXWRUHFORVXUH IXQFWLRQl
 $5
>@
6ZLWFK 21 RI LQWHUQDO DXWRUHFORVXUH
6ZLWFK 2)) RI LQWHUQDO DXWRUHFORVXUH
 $5
21
2))

www . ElectricalPartManuals . com