Download Print this page

Siemens SIPROTEC 7SJ600 Instruction Manual page 74

Numerical overcurrent, motor and overload relay

Advertisement

6-
9

0DUVKDOOLQJ RI ELQDU\ LQSXWV ELQDU\ RXWSXWV DQG /(' LQGLFDWRUV

,QWURGXFWLRQ
7KH IXQFWLRQV RI WKH ELQDU\ LQSXWV DQG RXWSXWV UHSUH
VHQWHG LQ WKH JHQHUDO GLDJUDPV $SSHQGL[ $ UHODWH
WR WKH IDFWRU\ VHWWLQJV 7KH DVVLJQPHQW RI WKH LQSXWV
DQG RXWSXWV RI PRVW RI WKH LQWHUQDO IXQFWLRQV FDQ EH
UHDUUDQJHG DQG WKXV DGDSWHG WR WKH RQVLWH FRQGL
WLRQV
0DUVKDOOLQJ RI WKH LQSXWV RXWSXWV DQG /('V LV SHU
IRUPHG E\ PHDQV RI WKH LQWHJUDWHG RSHUDWRU SDQHO RU
YLD WKH RSHUDWLQJ LQWHUIDFH 7KH RSHUDWLRQ RI WKH RS
HUDWRU SDQHO LV GHVFULEHG LQ GHWDLO LQ 6HFWLRQ 
0DUVKDOOLQJ EHJLQV DW WKH DGGUHVV EORFN 
7KH LQSXW RI WKH FRGHZRUG LV UHTXLUHG IRU PDUVKDO
OLQJ UHIHU WR 6HFWLRQ   :LWKRXW FRGHZRUG HQWU\
SDUDPHWHUV FDQ EH UHDG RXW EXW QRW EH FKDQJHG $
IODVKLQJ FXUVRU LQGLFDWHV WKDW WKH UHOD\ RSHUDWHV QRZ
LQ DOWHUDWLRQ PRGH VWDUWLQJ ZLWK WKH ILUVW DOWHUDWLRQ
DQG HQGLQJ DIWHU FRQILUPDWLRQ RI WKH DOWHUHG LWHP ZLWK
WKH HQWHU NH\ ( 7KH DOWHUDWLRQ PRGH LV HTXDOO\ HQ
GHG ZKHQ WKH VHWWLQJ PHQX LV OHIW RU DIWHU DQ LQWHUQDO
ZDLWLQJ WLPH
:KHQ WKH ILUPZDUH SURJUDPV DUH UXQQLQJ WKH VSHFLI
LF ORJLF IXQFWLRQV ZLOO EH DOORFDWHG WR WKH SK\VLFDO LQ
SXW DQG RXWSXW PRGXOHV RU /('V LQ DFFRUGDQFH ZLWK
WKH VHOHFWLRQ
([DPSOH $ IDXOW LV UHJLVWHUHG IURP DQ\ RI WKH LQWH
JUDWHG SURWHFWLRQ IXQFWLRQV 7KLV HYHQW LV JHQHUDWHG
LQ WKH GHYLFH DV DQ k$QQXQFLDWLRQl ORJLFDO IXQFWLRQ
DQG VKRXOG EH DYDLODEOH DW FHUWDLQ WHUPLQDOV RI WKH
XQLW DV D 12 FRQWDFW 6LQFH VSHFLILF XQLW WHUPLQDOV
DUH KDUGZLUHG WR D VSHFLILF SK\VLFDO VLJQDO UHOD\
HJ WR WKH VLJQDO UHOD\  WKH SURFHVVRU PXVW EH DG
YLVHG WKDW WKH ORJLFDO VLJQDO k)7 GHWl IDXOW GH
WHFWHG VKRXOG EH WUDQVPLWWHG WR WKH VLJQDO UHOD\ 
7KXV ZKHQ PDUVKDOOLQJ LV SHUIRUPHG WZR VWDWH
PHQWV RI WKH RSHUDWRU DUH LPSRUWDQW :KLFK ORJLFDO
DQQXQFLDWLRQ JHQHUDWHG LQ WKH SURWHFWLRQ XQLW SUR
JUDP VKRXOG WULJJHU ZKLFK SK\VLFDO VLJQDO UHOD\"
8S WR  ORJLFDO DQQXQFLDWLRQV FDQ WULJJHU RQH
SK\VLFDO VLJQDO UHOD\
 
0 $ 5 6 +

$ VLPLODU VLWXDWLRQ DSSOLHV WR ELQDU\ LQSXWV ,Q WKLV
FDVH H[WHUQDO LQIRUPDWLRQ HJ EORFNLQJ RI ,!!
VWDJH LV FRQQHFWHG WR WKH XQLW YLD D SK\VLFDO LQSXW
PRGXOH DQG VKRXOG LQLWLDWH D ORJLFDO IXQFWLRQ
QDPHO\ EORFNLQJ 7KH FRUUHVSRQGLQJ TXHVWLRQ WR WKH
RSHUDWRU LV WKHQ :KLFK VLJQDO IURP D SK\VLFDO LQ
SXW UHOD\ VKRXOG LQLWLDWH ZKLFK UHDFWLRQ LQ WKH GH
YLFH" 2QH SK\VLFDO LQSXW VLJQDO FDQ LQLWLDWH XS WR 
ORJLFDO IXQFWLRQV
7KH WULS UHOD\V FDQ DOVR EH DVVLJQHG GLIIHUHQW IXQF
WLRQV (DFK WULS UHOD\ FDQ EH FRQWUROOHG E\ HDFK FRP
PDQG IXQFWLRQ RU FRPELQDWLRQ RI FRPPDQG IXQF
WLRQV
7KH ORJLFDO DQQXQFLDWLRQ IXQFWLRQV FDQ EH XVHG LQ
PXOWLSOH PDQQHU (J RQH DQQXQFLDWLRQ IXQFWLRQ FDQ
WULJJHU VHYHUDO VLJQDO UHOD\V VHYHUDO WULS UHOD\V DGGL
WLRQDOO\ EH LQGLFDWHG E\ /('V DQG EH FRQWUROOHG E\ D
ELQDU\ LQSXW XQLW
7KH PDUVKDOOLQJ SURFHGXUH LV VHW XS VXFK WKDW IRU
HDFK SK\VLFDO ELQDU\ LQSXW HDFK RXWSXW UHOD\ DQG
IRU HDFK PDUVKDOODEOH /(' WKH RSHUDWRU ZLOO EH
DVNHG ZKLFK ORJLFDO IXQFWLRQV VKRXOG EH DOORFDWHG
7KH RIIHUHG ORJLFDO IXQFWLRQV DUH WDEXODWHG IRU WKH
ELQDU\ LQSXWV RXWSXWV DQG /('V LQ WKH IROORZLQJ VHF
WLRQV
7KH PDUVKDOOLQJ EORFN LV UHDFKHG ZLWK WKH NH\V b
VFUROOLQJ IRUZDUGV RU a VFUROOLQJ EDFNZDUGV 
QH[W RSHUDWLRQ OHYHO RU
LH IURP WKH LQLWLDO GLVSOD\ )LJXUH  
 NH\ b IRUZDUGV 
 NH\
VHFRQG RSHUDWLRQ OHYHO 
 NH\ b IRUZDUGV XQWLO DGGUHVV EORFN  DSSHDUV
LQ WKH GLVSOD\
>@
%HJLQQLQJ RI PDUVKDOOLQJ EORFNV
,QVWDOODWLRQ LQVWUXFWLRQV
SUHYLRXV RSHUDWLRQ OHYHO 
&*&

Advertisement

loading