Date Code 20010307
Trip and Target Logic
5-19
SEL-351-0, -1, -2, -3, -4 Instruction Manual
7KH'&8%ORJLFLQ)LJXUHWDNHVLQWKHORVVRIJXDUGDQGSHUPLVVLYHWULSRXWSXWVIURPWKH
FRPPXQLFDWLRQUHFHLYHUVVHH)LJXUHDQG)LJXUHDQGPDNHVSHUPLVVLYH
375;375;DQGXQEORFNLQJEORFN8%%8%%ORJLFRXWSXWGHFLVLRQV
'&8%VFKHPHVDUHW\SLFDOO\LPSOHPHQWHGZLWK)6.IUHTXHQF\VKLIWFDUULHURUDQDORJ
PLFURZDYHDVWKHFRPPXQLFDWLRQVPHGLXP
Use Existing SEL-321 Relay DCUB Application Guide for the SEL-351 Relay
8VHWKHH[LVWLQJ6(/5HOD\'&8%DSSOLFDWLRQJXLGH$*WRKHOSVHWXSWKH6(/
5HOD\LQD'&8%VFKHPHVHHSUHFHGLQJVXEVHFWLRQ
&RPPXQLFDWLRQV$VVLVWHG7ULS/RJLF²
*HQHUDO2YHUYLHZ
IRUPRUHVHWWLQJFRPSDULVRQLQIRUPDWLRQRQWKH6(/6(/5HOD\V
External Inputs
6HH
2SWRLVRODWHG,QSXWV
LQ
6HFWLRQ,QSXWV2XWSXWV7LPHUVDQG2WKHU&RQWURO/RJLF
IRU
PRUHLQIRUPDWLRQRQRSWRLVRODWHGLQSXWV
PT1, PT2
y
Received Permissive Trip Signal(s)
,QWZRWHUPLQDOOLQH'&8%DSSOLFDWLRQVVHWWLQJ(&200 '&8%DSHUPLVVLYHWULSVLJQDOLV
UHFHLYHGIURPRQHUHPRWHWHUPLQDO2QHRSWRLVRODWHGLQSXWRQWKH6(/5HOD\HJLQSXW
,1LVGULYHQE\DFRPPXQLFDWLRQVHTXLSPHQWUHFHLYHURXWSXWVHH)LJXUH0DNH6(/
2*,&
FRQWUROHTXDWLRQVHWWLQJ37
37 ,1
WZRWHUPLQDOOLQHDSSOLFDWLRQ
,QWKUHHWHUPLQDOOLQH'&8%DSSOLFDWLRQVVHWWLQJ(&200 '&8%SHUPLVVLYHWULSVLJQDOV
DUHUHFHLYHGIURPWZRUHPRWHWHUPLQDOV7ZRRSWRLVRODWHGLQSXWVRQWKH6(/5HOD\HJ
LQSXWV,1DQG,1DUHGULYHQE\FRPPXQLFDWLRQVHTXLSPHQWUHFHLYHURXWSXWVVHH)LJXUH
0DNH6(/
2*,&
FRQWUROHTXDWLRQVHWWLQJV37DQG37DVIROORZV
37 ,1
WKUHHWHUPLQDOOLQHDSSOLFDWLRQ
37 ,1
6(/
2*,&
FRQWUROHTXDWLRQVHWWLQJV37DQG37DUHURXWHGLQWRWKH'&8%ORJLFLQ)LJXUH
IRU³XQEORFNLQJEORFN´DQG³SHUPLVVLYHWULSUHFHLYH´ORJLFGHFLVLRQV
$VH[SODLQHGLQWKHSUHFHGLQJ3277VXEVHFWLRQWKH6(/
2*,&
FRQWUROHTXDWLRQVHWWLQJV37DQG
37LQ)LJXUHDUHURXWHGLQYDULRXVFRPELQDWLRQVWRFRQWURO5HOD\:RUGELW37GHSHQGLQJRQ
HQDEOHVHWWLQJ(&200 '&8%RU'&8%5HOD\:RUGELW37LVWKHQDQLQSXWLQWRWKH3277
ORJLFLQ)LJXUHIRUHFKRNH\LQJ
LOG1, LOG2
y
Loss-of-Guard Signal(s)
,QWZRWHUPLQDOOLQH'&8%DSSOLFDWLRQVVHWWLQJ(&200 '&8%DORVVRIJXDUGVLJQDOLV
UHFHLYHGIURPRQHUHPRWHWHUPLQDO2QHRSWRLVRODWHGLQSXWRQWKH6(/5HOD\HJLQSXW
,1LVGULYHQE\DFRPPXQLFDWLRQVHTXLSPHQWUHFHLYHURXWSXWVHH)LJXUH0DNH6(/
2*,&
FRQWUROHTXDWLRQVHWWLQJ/2*
/2* ,1
WZRWHUPLQDOOLQHDSSOLFDWLRQ