Z(
2
) =
Z
(2
)
mn
nm
Z
(O) = Z(O)
mn
nm
GU 12.27
�2)
_ Z
(2)
mm
mn
Z(
2
) _
Z
(
2
)
nn
nm
.
Z
(
2
)
th, mn
®
Z
(O)
-
Z
(O
) §
mm mn
Z(
O
)
-
Z
(O)
ll n
nm
�
Z(
O
)
tho mn
®
-
Z
2
-
Z
o
p
kZ
2
r
•
V
(
2
)
a
Z
(
2
)
t
pp
'
(1
-k)
Z
2
I
p
(a)
p
r
k
Z
o
.
Z
(
O
)
y
e
o
)
pp
'
a
(1
-
k)Zo
p
'
(6)
Z
(
2
)
mn
Z
(
2
)
nm
2
(
0
)
fli T!
Z
(
O
)
nm
Z(
2) - Z(2)
mm
mn
I
Z
(
2
)
-
Z(
2)
nn
nm
Z
(
O
) -
Z
(O)
mm
mn
Z
(
2
)
th o mn
®
I
Z
(
O)
th. mn
Z
,<,�! -Z;I�:I.
®
t
t
Simulating the opening of line -® between points p and p
'
: (a) negative-sequence and (h) zero-sequence equivalent circuits.
I