7-26
Maintenance and Testing
Date Code 20010213
SEL-321-3 Instruction Manual
$
,
9
9
)RU
$
$
µ
=
µ
=
µ
=
µ
=
µ
=
$1*
=
,
9
(
)
[
]
(
)
[
]
RKPV
P
=
ZKHQ
57
=
RKPV
F
=
RKPV
F
=
5H
F
=
,
,
$1*
=
9
5H
F
=
=
=
=
=
µ
¼
µ
¼
µ
=
¼
µ
¼
=
(TXDWLRQ
$
,
9
9
)RU
$
$
µ
=
µ
=
DQGXVLQJWKHHTXDWLRQDERYH
µ
=
µ
=
µ
=
$1*
=
,
9
9
(
)
[
]
RKPV
P
=
ZKHQ
)7
=
RKPV
F
=
RKPV
F
=
5H
F
=
=
=
=
=
µ
¼
µ
¼
µ
=
1RWH
$V\RXSHUIRUPWKLVWHVWRWKHUSURWHFWLRQHOHPHQWVPD\DVVHUWFDXVLQJWKHUHOD\WR
FORVHRWKHURXWSXWFRQWDFWVDQGDVVHUWUHOD\WDUJHWV7KLVLVQRUPDODQGLVQRWDFDXVH
IRUFRQFHUQ
Negative-Sequence Directional Element Test Using Three Voltage Sources and One
Current Source
6WHS
([HF2:6(7FRPPDQGDQGYHULI\WKHIROORZLQJUHOD\VHWWLQJV=0$*
=$1*=)4)=545DQGD7KHH[DPSOHUHOD\VHWWLQJVXVHWKH
IROORZLQJVHWWLQJV=0$*
W
=$1* =)
W
4)
DPSVVHFRQGDU\=5
W
45 DPSVVHFRQGDU\D
([HFXWHWKH
6(7
FRPPDQGDQGFKDQJHWKHH[DPSOH(/23VHWWLQJIURP<WR1
6WHS
6HOHFWRXWSXWFRQWDFWVWRLQGLFDWHRSHUDWLRQRIWKH4)DQG45HOHPHQWV,QWKLV
H[DPSOHZHXVHWKH287DQG287RXWSXWV
)URP$FFHVV/HYHOH[HFXWHWKH
6(7/Q
FRPPDQGWRFRQILJXUH2XWSXWDQG
2XWSXWWRFORVHIRUDVVHUWLRQRIWKH4)DQG45HOHPHQWVUHVSHFWLYHO\
Summary of Contents for SEL-321-3
Page 4: ......
Page 6: ......
Page 8: ......
Page 71: ...Date Code 20010213 Specifications 2 51 SEL 321 3 Instruction Manual LJXUH RJLF 6 PERO HJHQG ...
Page 87: ...Date Code 20010213 Specifications 2 67 SEL 321 3 Instruction Manual LJXUH 9ROWDJH OHPHQW RJLF ...
Page 102: ......
Page 150: ......
Page 156: ......
Page 167: ...Date Code 20010213 Event Reporting 4 11 SEL 321 3 Instruction Manual ...
Page 172: ......
Page 261: ...SEL DIRECTION AND POLARITY CHECK FORM ...
Page 262: ......
Page 263: ...SEL DIRECTION AND POLARITY CHECK FORM ...
Page 264: ......
Page 268: ......
Page 330: ......
Page 350: ......
Page 352: ......
Page 354: ......
Page 360: ......
Page 366: ......
Page 380: ......