iv Overcurrent, Voltage, Synchronism Check, Frequency, and Power Elements Date Code 20010112
SEL-351S Instruction Manual
)LJXUH 3KDVH7LPH2YHUFXUUHQW(OHPHQW37ZLWK'LUHFWLRQDO&RQWURO2SWLRQ
)LJXUH 1HXWUDO*URXQG7LPH2YHUFXUUHQW(OHPHQW17ZLWK'LUHFWLRQDO&RQWURO
2SWLRQ
)LJXUH 1HXWUDO*URXQG7LPH2YHUFXUUHQW(OHPHQW17ZLWK'LUHFWLRQDO&RQWURO
2SWLRQ
)LJXUH 5HVLGXDO*URXQG7LPH2YHUFXUUHQW(OHPHQW*7ZLWK'LUHFWLRQDO&RQWURO
2SWLRQ
)LJXUH 5HVLGXDO*URXQG7LPH2YHUFXUUHQW(OHPHQW*7ZLWK'LUHFWLRQDO&RQWURO
2SWLRQ
)LJXUH 1HJDWLYH6HTXHQFH7LPH2YHUFXUUHQW(OHPHQW47ZLWK'LUHFWLRQDO&RQWURO
2SWLRQ
)LJXUH 6LQJOH3KDVHDQG7KUHH3KDVH9ROWDJH(OHPHQWV
)LJXUH 3KDVHWR3KDVHDQG6HTXHQFH9ROWDJH(OHPHQWV
)LJXUH &KDQQHO969ROWDJH(OHPHQWV
)LJXUH 6\QFKURQLVP&KHFN9ROWDJH:LQGRZDQG6OLS)UHTXHQF\(OHPHQWV
)LJXUH 6\QFKURQLVP&KHFN(OHPHQWV
)LJXUH $QJOH'LIIHUHQFH%HWZHHQ9
3
DQG9
6
&RPSHQVDWHGE\%UHDNHU&ORVH7LPHI
3
I
6
DQG9
3
6KRZQDV5HIHUHQFHLQ7KLV([DPSOH
)LJXUH 8QGHUYROWDJH%ORFNIRU)UHTXHQF\(OHPHQWV
)LJXUH /HYHOV7KURXJK)UHTXHQF\(OHPHQWV
)LJXUH 9ROWDJH6DJ(OHPHQWV
)LJXUH 9ROWDJH6ZHOO(OHPHQWV
)LJXUH 9ROWDJH,QWHUUXSWLRQ(OHPHQWV
)LJXUH 9EDVH7UDFNLQJ([DPSOH7KUHH3KDVH'LVWXUEDQFH
)LJXUH 3RZHU(OHPHQWV/RJLF9$56([DPSOH6KRZQ
)LJXUH 3RZHU(OHPHQWV2SHUDWLRQLQWKH5HDO5HDFWLYH3RZHU3ODQH
)LJXUH 6(/6%5HOD\3URYLGHV9$5&RQWUROIRUN9$5&DSDFLWRU%DQN
)LJXUH 3HU8QLW6HWWLQJ/LPLWVIRU6ZLWFKLQJN9$5&DSDFLWRU%DQN2QDQG2II/LQH