Download Print this page

Siemens 7SA513 Instruction Manual page 205

Numerical distance protection for ehv systems
Hide thumbs Also See for 7SA513:

Advertisement

6$
9

6HWWLQJV IRU YHULILFDWLRQ RI WKH IDXOWHG ORRSV  DGGUHVV EORFNV  DQG 
7KH VHOHFWLRQ RI YDOLG VKRUWFLUFXLWHG ORRSV YDULHV
FRQVLGHUDEO\ GHSHQGHQW XSRQ ZKHWKHU WKH V\VWHP
VWDUSRLQW LV HDUWKHG LVRODWHG RU FRPSHQVDWHG 3HW
HUVHQ FRLO  $FFRUGLQJO\ WKH WUHDWPHQW RI WKH V\VWHP
VWDUSRLQW KDV WR EH NQRZQ EHIRUH WKH GHYLFH LV SXW
LQWR RSHUDWLRQ VHH 6HFWLRQ  DGGUHVV  
7KH SDUDPHWHU EORFN  LV LPSRUWDQW IRU QHWZRUNV
ZLWK VROLGO\ HDUWKHG VWDUSRLQW :LWK XQHDUWKHG VWDU
SRLQW LW LV LUUHOHYDQW DQG FDQ EH SDVVHG RYHU
3DUDPHWHU EORFN  LV IRU LVRODWHG DQG FRPSHQVDWHG
QHWZRUNV )RU QHWZRUNV ZLWK HDUWKHG VWDUSRLQWV LW LV
LUUHOHYDQW DQG FDQ EH SDVVHG RYHU
,Q HDUWKHG QHWZRUNV DQ HDUWK IDXOW FDQ EH GHWHFWHG
E\ HDUWK FXUUHQW RU GLVSODFHPHQW YROWDJH DGGUHVV
  $ FKRLFH FDQ EH PDGH ZKHWKHU DQ HDUWK IDXOW
LV GHWHFWHG RQ SLFNXS RI WKH HDUWK FXUUHQW GHWHFWRU
DGGUHVV  RU RQ SLFNXS RI WKH GLVSODFHPHQW
YROWDJH GHWHFWRU DGGUHVV  RU RQO\ LI ERWK HOH
PHQWV KDYH SLFNHG XS 8QGHU DGGUHVV  FDQ EH
VHOHFWHG () '(7(&7
HOHPHQWV VKDOO KDYH SLFNHG XS () '(7(&7
$1' ,H! LI ERWK HOHPHQWV VKDOO KDYH SLFNHG XS EH
IRUH DQ HDUWK IDXOW LV VWDWHG ,I RQO\ WKH ,H! FULWHULRQ
VKRXOG EH YDOLG () '(7(&7 LV VHW WR 8H! 25 ,H!
DQG WKH WKUHVKROG IRU 8H! DGGUHVV  LV VHW WR *
,I WKH YDOXH RI WKH KLJK HDUWK FXUUHQW VWDJH DGGUHVV
 UHIHU WR 6HFWLRQ  LV H[FHHGHG DQ HDUWK
IDXOW LV GHWHFWHG UHJDUGOHVV RI WKH VHWWLQJ RI DGGUHVV

   
) $ 8 / 7
( $ 5 7 + ( '
   
8 H !
 
9
&*&
8H! 25 ,H! LI RQH RI WKHVH
8H!
, 1
1 ( 7 : 2 5 . 6
,Q 6$ DOO VL[ FRQGXFWRU ORRSV DUH FRQWLQXRXVO\
FDOFXODWHG 7KXV ZLWK PXOWLSOH IDXOWV HDFK LQGLYLGX
DO IDXOW ORRS LV HYDOXDWHG 1HYHUWKHOHVV LW LV SRVVLEOH
WR VXSSUHVV FHUWDLQ ORRS ZKHQ PXOWLSOH IDXOWV RFFXU
/RRS YHULILFDWLRQ IRU GRXEOH SKDVHWRHDUWK IDXOWV
FDQ EH LQIOXHQFHG LQ DGGUHVV  1RUPDOO\ $//
GHWHFWHG IDXOW ORRSV DUH HYDOXDWHG 7KLV FDQ EH
FKDQJHG WR 3+$6( ($57+ 21/< LH RQO\ WKH FRQ
FHUQHG SKDVHWRHDUWK ORRSV DUH YDOLG ,I KLJK IRRWLQJ
UHVLVWDQFHV DUH H[SHFWHG WKHQ %/2&. /($',1* 3+
PD\ EH PRUH IDYRXUDEOH EHFDXVH WKH OHDGLQJ
SKDVHHDUWK ORRS WHQGV WR RYHUUHDFK ,Q VRPH FDVHV
IDXOW UHVLVWDQFH SKDVHSKDVH ODUJHU WKDQ SKDVH
HDUWK %/2&. /$**,1* 3+ FDQ EH PRUH IDYRXU
DEOH 3+$6( 3+$6( 21/< PHDQV WKDW RQO\ WKH
FRQFHUQHG SKDVHSKDVH ORRS LV HYDOXDWHG IRU WZR
SKDVH HDUWK IDXOWV WKLV DOORZV WKH KLJKHVW DFFXUDF\
EXW LV XQIDYRXUDEOH LQ FDVH RI FURVVFRXQWU\ HDUWK
IDXOWV
8QGHU DGGUHVV  RQH FDQ VHOHFW ZKHWKHU XQGHU
FRQGLWLRQV RI D VLQJOHSKDVH SLFNXS ZLWKRXW HDUWK
IDXOW GHWHFWLRQ D FRQGXFWRUHDUWK ORRS LV VHOHFWHG
7KH VHWWLQJ 3+ )$8/76
PDNHV VHQVH LQ HDUWKHG QHWZRUNV ZKHQ QR FXUUHQW
RU RQO\ H[WUHPHO\ ORZ FXUUHQW FDQ IORZ LQ WKH FDVH RI
DQ HDUWK IDXOW )RU LPSHGDQFH IDXOW GHWHFWLRQ WKLV SD
UDPHWHU LV LUUHOHYDQW EHFDXVH LPSHGDQFH IDXOW GH
WHFWLRQ DOZD\V LV UHODWHG WR D IDXOW ORRS
%HJLQQLQJ RI EORFN
l9HULILFDWLRQ RI WKH IDXOW ORRS LQ VROLGO\ HDUWKHG
QHWZRUNVl
'LVSODFHPHQW YROWDJH 8H
GHWHFWLRQ LQ HDUWKHG V\VWHPV
6PDOOHVW VHWWLQJ YDOXH
/DUJHVW VHWWLQJ YDOXH
RU * QR HDUWK IDXOW GHWHFWLRQ EDVHG RQ GLVSODFHPHQW
YROWDJH PHDVXUHPHQW
1RWH $GGUHVV  8SK8GHOWD KDV QR LQIOXHQFH RQ
WKLV SLFNXS YDOXH ,I WKH GLVSODFHPHQW YROWDJH LV FRQ
QHFWHG WR WKH UHOD\ IURP WKH RSHQ GHOWD ZLQGLQJ RI WKH
YROWDJH WUDQVIRUPHUV WKH SLFNXS YDOXH 8H! LV UHODWHG
WR WKLV YROWDJH
2SHUDWLQJ LQVWUXFWLRQV
3+$6( ($57+ RQO\
c k 8
IRU HDUWK IDXOW

 9
 9


Advertisement

loading