Siemens 7SA513 - Page 61

0HWKRG RI RSHUDWLRQ6$
9
&*&
)LJXUH  VKRZV WKH GLUHFWLRQDO FKDUDFWHULVWLF WDN
LQJ LQWR FRQVLGHUDWLRQ WKH VRXUFH LPSHGDQFH ZLWK
RXW ORDG FXUUHQW 6LQFH WKH XQIDXOWHG YROWDJH HTXDOV
WKH JHQHUDWRU YROWDJH (
DQG GRHV QRW FKDQJH DIWHU
IDXOW LQFHSWLRQ WKH GLUHFWLRQDO FKDUDFWHULVWLF LQ WKH
LPSHGDQFH GLDJUDP DSSHDUV WR EH GLVSODFHG E\ WKH
VRXUFH LPSHGDQFH =
6
(

,
6&
 ,I WKH ORFDWLRQ RI
WKH IDXOW LV ) )LJXUH D WKH VKRUW FLUFXLW OLHV LQ
WKH IRUZDUG GLUHFWLRQ WKH VRXUFH LPSHGDQFH LQ WKH
UHYHUVH GLUHFWLRQ $OO IDXOW ORFDWLRQV ULJKW XS WR WKH
UHOD\ ORFDWLRQ FWV DUH FOHDUO\ UHFRJQL]HG DV lIRU
ZDUGVl )LJXUH E :KHQ WKH FXUUHQW IORZV LQ WKH
RSSRVLWH GLUHFWLRQ WKH GLUHFWLRQDO FKDUDFWHULVWLF
FKDQJHV LPPHGLDWHO\ )LJXUH F 7KHQ WKH UH
YHUVHG FXUUHQW ,
6&
 ZKLFK LV GHWHUPLQHG E\ WKH
VRXUFH LPSHGDQFH =
6
=
/
 IORZV WKURXJK WKH
PHDVXULQJ SRLQW FXUUHQW WUDQVIRUPHU
 /RDG LQIOXHQFH RQ WKH GLUHFWLRQDO FKDU
DFWHULVWLF
,I ORDG LV FDUULHG E\ WKH OLQH WKHQ WKLV UHVXOWV LQ D YROW
DJH GURS DW WKH VRXUFH LPSHGDQFH )LJXUH D
6LQFH DW WKH PHDVXULQJ SRLQW WKH YROWDJH 8
LV PHD
VXUHG QRW JHQHUDWRU YROWDJH (
 WKH GLUHFWLRQDO FKDU
DFWHULVWLF VXIIHUV D URWDWLRQ E\ WKH ORDG DQJOH E )LJ
XUHV E DQG F 7KHUHIRUH WKH GLUHFWLRQDO
FKDUDFWHULVWLF KDV D VDIHW\ GLVWDQFH IURP WKH OLPLWV RI
WKH ILUVW TXDGUDQW LQ WKH 5;GLDJUDP )LJXUH

'LUHFWLRQDO
FKDUDFWHULVWLF
M;
= IRUZDUGV
FDSDFLWLYH
LQGXFWLYH
UHYHUVH
5
)LJXUH  6$ GLUHFWLRQDO FKDUDFWHULVWLFV
(

)

M;
=
6
5
E
=
/
=
6
M;
)

=
6
=
/
=
6
F
5
)

)

=
/
=
6
=
6
6$
D
(

,
VF
,
VF
)LJXUH  'LUHFWLRQDO FKDUDFWHULVWLF ZLWK VRXUFH LPSHGDQFH ZLWKRXW ORDG WUDQVSRUW
www . ElectricalPartManuals . com