3-58
Overcurrent, Voltage, Synchronism Check, Frequency, and Power Elements
Date Code 20010307
SEL-351-0, -1, -2, -3, -4 Instruction Manual
LQFUHDVHVWKHSUREDELOLW\WKDWDQHQGRIGLVWXUEDQFHFRQGLWLRQLVPLVVHG7KLVFRXOGFUHDWHDIDOVH
VDJRUVZHOOFRQGLWLRQWKDWPD\QRWFOHDULWVHOIXQWLOWKHQH[WGLVWXUEDQFHWKXVFDXVLQJWKH9EDVH
WKHUPDOHOHPHQWWRUHPDLQEORFNHG
9EDVHWKHUPDOHOHPHQWEORFNLQJE\WKH)$8/75HOD\:RUGELWLVSURJUDPPDEOHYLD6(/
2*,&
VHWWLQJ)$8/76(/
2*,&
FRQWUROHTXDWLRQVHWWLQJ)$8/7DOVRFRQWUROVRWKHUUHOD\IXQFWLRQV
VHHVXEVHFWLRQ
6(/
2*,&
&RQWURO(TXDWLRQ6HWWLQJ)$8/7
LQ
6HFWLRQ7ULSDQG7DUJHW
/RJLF
WLPHV
N9
SU
LP
DU
\
6ZHOOSLFNXS
6DJSLFNXS
,QWHUUXSWLRQSLFNXS
_9_
_9D__9E__9F_
9EDVH
6DJ
RYHUORDG
,QWHUUXSWLRQ
EUHDNHURSHQ
9EDVHVWRSV
WUDFNLQJ
9EDVHUHVXPHV
WUDFNLQJ
':*06
)LJXUH9EDVH7UDFNLQJ([DPSOH7KUHH3KDVH'LVWXUEDQFH
Vbase Initialization
7KH9EDVHWKHUPDOHOHPHQWLVDXWRPDWLFDOO\LQLWLDOL]HGZKHQWKHUHOD\LVSRZHUHGXSDQGDOVR
DIWHUDVHWWLQJVFKDQJHRUJURXSFKDQJHWKDWUHVXOWVLQDQHZ(66, <FRQGLWLRQ
9EDVHFDQDOVREHIRUFHGWRLQLWLDOL]HE\LVVXLQJWKH
66,5
FRPPDQG$FFHVV/HYHO
'XULQJLQLWLDOL]DWLRQWKH66,HOHPHQWVDUHGHDVVHUWHGDQGWKH66,5HFRUGHULVGLVDEOHGXQWLODOORI
WKHIROORZLQJFRQGLWLRQVDUHPHW
_9_!_9_FRUUHFWSKDVHURWDWLRQFKHFN
_9_!_9_FRUUHFWSKDVHFRQQHFWLRQFKHFN
9D9EDQG9FDUHDOOJUHDWHUWKDQ9VHFRQGDU\
)$8/7LVGHDVVHUWHG
_9_LVZLWKLQWKUHHSHUFHQWRIWKHFDOFXODWHG9EDVHYDOXH
$WOHDVWWZHOYHVHFRQGVKDYHHODSVHG