Download Print this page

Siemens siprotec 7sj602 Instruction Manual page 93

Numerical time overcurrent protection
Hide thumbs Also See for siprotec 7sj602:

Advertisement

6-
9

0DUVKDOOLQJ RI WKH /(' LQGLFDWRUV  DGGUHVV EORFN 
7KH XQLW FRQWDLQV  /('V IRU RSWLFDO LQGLFDWLRQV  RI
ZKLFK FDQ EH PDUVKDOOHG 7KH\ DUH GHVLJQDWHG /('
 WR /('  DQG FDQ EH PDUVKDOOHG LQ DGGUHVV EORFN
 7KH EORFN LV UHDFKHG IURP WKH LQLWLDO GLVSOD\ E\
SUHVVLQJ WKH NH\ b WR WKH ILUVW PDLQ PHQX LWHP k3$
5$0(l SDUDPHWHUV LQ WKH ILUVW RSHUDWLRQ OHYHO RI
WKH PHQX WUHH 3UHVV NH\
HUDWLRQ PHQX OHYHO ZKLFK VWDUWV ZLWK WKH ILUVW SDUDP
HWHU EORFN k &21)l FRQILJXUDWLRQ  3UHVV WKH NH\
b UHSHDWHGO\ XQWLO DGGUHVV EORFN k 0$56+l PDU
VKDOOLQJ DSSHDUV .H\
ZLWK DGGUHVV EORFN k 0$56+ %,1 ,13l PDUVKDO
OLQJ RI ELQDU\ LQSXWV  NH\ b WZLFH OHDGV WR DGGUHVV
EORFN k 0$56+ /(' ,1'l PDUVKDOOLQJ /(' LQGL
FDWRUV 
7KH VHOHFWLRQ SURFHGXUH LV FDUULHG RXW DV GHVFULEHG
LQ 6HFWLRQ  0XOWLSOH DQQXQFLDWLRQV DUH SRVVL
EOH LH RQH ORJLFDO DQQXQFLDWLRQ IXQFWLRQ FDQ EH
URXWHG WR VHYHUDO /('V VHH DOVR 6HFWLRQ  
 
0 $ 5 6 +
/ ( '
, 1 '
7KH ILUVW PDUVKDOODEOH /(' LV UHDFKHG ZLWK WKH NH\
 
0 $ 5 6 +
/ ( '
&KDQJH RYHU WR WKH VHOHFWLRQ OHYHO ZLWK
  / ( ' 
2  &
  / ( ' 
Q R W
)ROORZLQJ FRGHZRUG LQSXW DOO PDUVKDOODEOH IXQFWLRQV FDQ EH SDJHG WKURXJK WKH GLVSOD\ E\ UHSHDWHG XVH RI WKH
NH\   %DFNSDJLQJ LV SRVVLEOH ZLWK WKH NH\   :KHQ WKH UHTXLUHG IXQFWLRQ DSSHDUV SUHVV WKH H[HFXWH NH\ (
$IWHU WKLV IXUWKHU IXQFWLRQV FDQ EH DOORFDWHG WR WKH VDPH /(' LQGLFDWRU ZLWK IXUWKHU LQGH[ QXPEHUV  WR  E\
XVLQJ WKH NH\ b (DFK VHOHFWLRQ PXVW EH FRQILUPHG E\ SUHVVLQJ WKH NH\ ( ,I D VHOHFWLRQ SODFH VKDOO QRW EH
DVVLJQHG WR D IXQFWLRQ VHOHFWLRQ LV PDGH ZLWK WKH IXQFWLRQ kQRW DOOl QRW DOORFDWHG 
/HDYH WKH VHOHFWLRQ OHYHO ZLWK NH\
&*&
WR UHDFK WKH VHFRQG RS
OHDGV WR RSHUDWLRQ OHYHO 



/ 
0

D O O 
 <RX FDQ JR WKHQ WR WKH QH[W /(' LQGLFDWRU ZLWK WKH DUURZ NH\ b
$SDUW IURP WKH ORJLFDO IXQFWLRQ HDFK /(' FDQ EH
PDUVKDOOHG WR RSHUDWH HLWKHU LQ WKH VWRUHG PRGH RU
XQVWRUHG PRGH (DFK DQQXQFLDWLRQ IXQFWLRQ LV GLV
SOD\HG ZLWK WKH LQGH[ P IRU PHPRUL]HG RU ZLWKRXW
LQGH[ IRU QRW PHPRUL]HG ZKHQ SURFHHGLQJ ZLWK WKH
NH\  
7KH PDUVKDOODEOH DQQXQFLDWLRQ IXQFWLRQV DUH WKH
VDPH DV WKRVH OLVWHG LQ 7DEOH  $QQXQFLDWLRQ IXQF
WLRQV DUH RI FRXUVH QRW HIIHFWLYH ZKHQ WKH FRUUH
VSRQGLQJ SURWHFWLRQ IXQFWLRQ KDV EHHQ SUR
JUDPPHG RXW GHFRQILJXUHG 
7KH FKDQJHG IXQFWLRQ PXVW EH UHFRQILUPHG E\ WKH
HQWHUNH\ (
7KH DVVLJQPHQW RI WKH /('V DV SUHVHW E\ WKH IDFWRU\
LV VKRZQ LQ WKH IURQW RI WKH XQLW )LJ   7KH IROORZ
LQJ ER[HV VKRZ DV DQ H[DPSOH WKH DVVLJQPHQW IRU
/('  7DEOH  VKRZV DOO /(' LQGLFDWRUV DV WKH\ DUH
SUHVHW IURP WKH IDFWRU\
>@
%HJLQQLQJ RI WKH EORFN k0DUVKDOOLQJ RI WKH /(' LQGLFDWRUVl

>@
k$OORFDWLRQV IRU /(' l
>@
/('  KDV EHHQ SUHVHW IRU
VW )DXOW GHWHFWLRQ RI WLPH RYHUFXUUHQW SURWHFWLRQ SKDVH /
PHPRUL]HG )1R 
>@
1R IXUWKHU IXQFWLRQV DUH SUHVHW IRU /(' 
,QVWDOODWLRQ LQVWUXFWLRQV


Advertisement

loading