Download Print this page

Siemens SIPROTEC 7SJ600 Instruction Manual page 48

Numerical overcurrent, motor and overload relay

Advertisement

6-
9

2YHUORDG SURWHFWLRQ ZLWKRXW PHPRU\
,I WKH RYHUORDG SURWHFWLRQ ZLWKRXW PHPRU\ LV VH
OHFWHG WKH WULSSLQJ WLPH LV FDOFXODWHG DFFRUGLQJ WR
WKH VLPSOLILHG IRUPXOD

W
k W
,  ,
 

/
ZLWK W
 WULSSLQJ WLPH
,
 RYHUORDG FXUUHQW
,
 SDUDPHWHUL]HG WKUHVKROG YDOXH
/
W
 SDUDPHWHUL]HG WLPH PXOWLSOLHU
/
WLPH ZLWK  WLPHV WKH WKUHVKROG YDOXH ,
,
,
/
/ HII
,
,
/
/ HII
,
,
/
/ HII
%ORFN RYHUORDG
SURWHFWLRQ
k ,
k ,
k ,
)LJXUH 
/RJLF GLDJUDP RI RYHUORDG SURWHFWLRQ

IRU , !  k ,
/
/
WULSSLQJ
/
2/
SUH/2$'
QR SUH/'
G3

 ,

U
GW
G3

 ,

U
GW
G3

 ,

U
GW
ZLWK PHPRU\
ZLWKRXW PHPRU\
/
|
/
/
:KHQ WKH FXUUHQW RI DW OHDVW RQH SKDVH KDV H[FHHG
HG WKH OLPLW YDOXH  k ,
WKH WLPHU LV VWDUWHG 7ULS FRPPDQG LV JLYHQ DIWHU WKH
WLPH KDV HODSVHG
:KHQ SLFNXS KDV RFFXUUHG WKH SURWHFWLRQ FRP
SXWHV WKH H[SHFWHG WLPH XQWLO WULS VWHDG\VWDWH FXU
UHQW DVVXPHG DQG PDNHV LW DYDLODEOH LQ WKH RSHUD
WLRQDO PHDVXUHG YDOXHV
)LJXUH  VKRZV WKH ORJLF GLDJUDP RI WKH RYHUORDG
SURWHFWLRQ ZLWK DQG ZLWKRXW PHPRU\

 3

U

 3

3
U
PD[

 3

U
3

W
/
W
/
W
/
0HWKRG RI RSHUDWLRQ
 SLFNXS LV LQGLFDWHG DQG
/
2/ ZUQ
2/ 7US
!2/ EN
2/ 7US
|
2/ SX
&*&

Advertisement

loading