G-2 Setting SELOGIC
®
Control Equations Date Code 20010112
SEL-351S Instruction Manual
,IWKHPD[LPXPSKDVHFXUUHQWLVDERYHWKHOHYHORIWKHSKDVHWLPHRYHUFXUUHQWSLFNXSVHWWLQJ
33SKDVHWLPHRYHUFXUUHQWHOHPHQW37LVHLWKHUWLPLQJRQLWVFXUYHRULVDOUHDG\WLPHG
RXW
Phase Time-Overcurrent Element 51P1T Time-Out Indication
,ISKDVHWLPHRYHUFXUUHQWHOHPHQW37LVQRWWLPHGRXW
RQLWVFXUYH5HOD\:RUGELW37LV
LQWKHIROORZLQJVWDWH
37 ORJLFDO
,ISKDVHWLPHRYHUFXUUHQWHOHPHQW37LVWLPHGRXW
RQLWVFXUYH5HOD\:RUGELW37LVLQ
WKHIROORZLQJVWDWH
37 ORJLFDO
Phase Time-Overcurrent Element 51P1T Reset Indication
,ISKDVHWLPHRYHUFXUUHQWHOHPHQW37LVQRWIXOO\UHVHW
5HOD\:RUGELW35LVLQWKH
IROORZLQJVWDWH
35 ORJLFDO
,ISKDVHWLPHRYHUFXUUHQWHOHPHQWLVIXOO\UHVHW
5HOD\:RUGELW35LVLQWKHIROORZLQJVWDWH
35 ORJLFDO
,ISKDVHWLPHRYHUFXUUHQWHOHPHQW37LVQRWIXOO\UHVHW
WKHHOHPHQWLVHLWKHU
7LPLQJRQLWVFXUYH
$OUHDG\WLPHGRXW
,VWLPLQJWRUHVHWRQHF\FOHUHVHWRUHOHFWURPHFKDQLFDOHPXODWLRQ±VHH
VHWWLQJ356
Relay Word Bit Application Examples – Phase Time-Overcurrent Element 51P1T
&RPPRQXVHVIRU5HOD\:RUGELWV337DQG35
3 WHVWLQJHJDVVLJQWRDQRXWSXWFRQWDFWIRUSLFNXSWHVWLQJ
WULSXQODWFKORJLFVHH6(/
2*,&FRQWUROHTXDWLRQXQODWFKWULSVHWWLQJ8/75H[DPSOH
ODWHULQWKLVVHFWLRQ
37 WULSORJLFVHH6(/
2*,&FRQWUROHTXDWLRQWULSVHWWLQJ75H[DPSOHODWHULQWKLV
VHFWLRQ
35 XVHGLQWHVWLQJHJDVVLJQWRDQRXWSXWFRQWDFWIRUUHVHWLQGLFDWLRQ
Other Relay Word Bits
7KHSUHFHGLQJH[DPSOHZDVIRUDSKDVHWLPHRYHUFXUUHQWHOHPHQWGHPRQVWUDWLQJ5HOD\:RUGELW
RSHUDWLRQIRUSLFNXSWLPHRXWDQGUHVHWFRQGLWLRQV2WKHU5HOD\:RUGELWVHJWKRVHIRU
GHILQLWHWLPHRYHUFXUUHQWHOHPHQWVYROWDJHHOHPHQWVIUHTXHQF\HOHPHQWVEHKDYHVLPLODUO\LQ
WKHLUDVVHUWLRQRUGHDVVHUWLRQWRORJLFDORUORJLFDOUHVSHFWLYHO\7KHWLPHRYHUFXUUHQW