Date Code 20010307
Loss-of-Potential, Load Encroachment, and Directional Element Logic
4-3
SEL-351-0, -1, -2, -3, -4 Instruction Manual
L
OAD
-E
NCROACHMENT
L
OGIC
7KHORDGHQFURDFKPHQWORJLFVHH)LJXUHDQGVHWWLQJVDUHHQDEOHGGLVDEOHGZLWKVHWWLQJ
(/2$' <RU1
7KHORDGHQFURDFKPHQWIHDWXUHDOORZVSKDVHRYHUFXUUHQWHOHPHQWVWREHVHWLQGHSHQGHQWRIORDG
OHYHOV7KLVLVHVSHFLDOO\KHOSIXOLQEXVRYHUFXUUHQWDSSOLFDWLRQV$EXVUHOD\VHHVWKHFXPXODWLYH
FXUUHQWVRIDOOWKHIHHGHUVEXWVWLOOKDVWRSURYLGHRYHUFXUUHQWEDFNXSSURWHFWLRQIRUDOOWKHVH
IHHGHUV,IWKHSKDVHHOHPHQWVLQWKHEXVUHOD\DUHVHWWRSURYLGHDGHTXDWHEDFNXSWKH\RIWHQDUH
VHWFORVHWRPD[LPXPEXVORDGFXUUHQWOHYHOV7KLVUXQVWKHULVNRIWULSSLQJRQEXVORDGFXUUHQW
7KHORDGHQFURDFKPHQWIHDWXUHSUHYHQWVWKLVIURPKDSSHQLQJDVVKRZQLQWKHH[DPSOHWKDW
IROORZVLQWKLVVXEVHFWLRQ
)LJXUH/RDG(QFURDFKPHQW/RJLF