x/r ratio, dc offset, decay of dc offset • relative angles ... · next: • voltage & current...
TRANSCRIPT
EE 5
223
- Lec
ture
13
Mon
Feb
8, 2
021
Ong
oing
Lis
t of T
opic
s:
•U
RL:
http
://w
ww
.ece
.mtu
.edu
/facu
lty/b
amor
k/EE
5223
/inde
x.ht
m
•La
b 3
begi
ns W
ed, F
eb 1
6.•
EE42
22 s
ymm
etric
al C
ompo
nent
s pr
ereq
/revi
ew, p
oste
d W
eek
3.
Toda
y:
•Ex
ampl
es o
f CT
appl
icat
ion U
•W
rapu
p on
CTs
, RC
F, e
tc. U
•VT
s an
d C
CVT
s•
MO
CTs
U•
Rad
ial P
rote
ctio
n ba
sics
- sy
stem
-leve
l coo
rdin
atio
n•
Basi
c co
nnec
tions
of d
irect
iona
l ove
rcur
rent
(67)
rela
ys.
•Ph
ase
rela
ys -
each
line
cur
rent
is p
olar
ized
with
VLL
from
oth
er p
hase
s.•
Gro
und
rela
y - r
esid
ual c
urre
nt (3
I ao) p
olar
ized
with
Vbr
oken
del
ta (3
V ao)
•Ex
celle
nt Il
lust
ratio
ns: f
igur
es 3
.7 th
ru 3
.10
•Vo
ltage
& C
urre
nt re
latio
nshi
ps d
urin
g fa
ults
, §3.
5-3.
10•
X/R
ratio
, dc
offs
et, d
ecay
of d
c of
fset
•
Rel
ativ
e an
gles
and
mag
nitu
des
of a
ll Vs
& Is
dur
ing
faul
t
Som
e Te
rm P
roje
ct Id
eas:
•Br
owse
Tab
le o
f Con
tent
s in
you
r tex
t boo
k fo
r ide
as.
•Sc
ope
of p
roje
ct?
Tea
ms
of 1
, 2, o
r 3, s
cope
app
ropr
iate
.•
Ask
onlin
e st
uden
ts/e
ngin
eers
for s
ugge
stio
ns•
New
tech
nolo
gies
to fi
gure
out
, im
porta
nt p
robl
ems
to s
olve
•Im
porta
nt c
once
pts
that
nee
d to
be
bette
r und
erst
ood
(bey
ond
tech
leve
l)•
Usi
ng A
TP to
mod
el C
T sa
tura
tion
and
rela
y pe
rform
ance
(act
ual w
avef
orm
s)•
CT
satu
ratio
n ef
fect
s•
Full
3-ph
ase
conn
ectio
n of
CT,
CT
seco
ndar
y ca
bles
, and
rela
y bu
rden
s.
•Bu
ild li
brar
y of
ATP
com
pone
nts
for t
his
appl
icat
ion.
•
Appl
icat
ion
and
test
ing
of a
pro
tect
ion
sche
me
(man
y ar
e po
ssib
le)
•C
hoos
e sc
hem
e an
d re
lay(
s)•
Des
ign
the
prot
ectio
n sc
hem
e an
d pr
ovid
e se
tting
s•
Test
in re
layi
ng la
b•
Subs
tatio
n au
tom
atio
n (IE
C 6
1850
)•
Neg
ativ
e se
quen
ce p
olar
izat
ion
met
hods
Term
Pro
ject
Idea
s (c
ont’d
): •
Har
dwar
e vs
. sim
ulat
ion,
or b
oth?
EE5
220
stud
ents
- us
e AT
P,C
omtra
de.
•R
elay
test
er, l
ab te
sts
of re
lays
?•
Exte
nd M
atla
b w
ork?
ASP
EN?
Mak
e ed
ucat
iona
l or e
ngin
eerin
g to
ols.
•
Type
of p
rote
ctio
n yo
u’re
inte
rest
ed in
?•
Dis
tribu
tion
(urb
an, r
ural
, ind
ustri
al)
•Tr
ansf
orm
er (f
ixed
tap,
LTC
, PS)
•G
ener
ator
•
Bus
•C
ap B
anks
(Shu
nt o
r Ser
ies)
•Tr
ansm
issi
on L
ines
, Cab
les
•M
otor
s (In
duct
ion,
Syn
chro
nous
)•
Exam
ples
of p
ast p
roje
cts
can
be lo
oked
at.
Som
e to
pics
I ca
n su
gges
t:•
Cap
acito
r Ban
k Pr
otec
tion
•H
igh-
Impe
danc
e Fa
ults
•N
egat
ive
sequ
ence
pol
ariz
atio
n•
Subs
tatio
n G
roun
ding
, Gro
undi
ng Is
sues
•Sm
all/m
ediu
m g
as-tu
rbin
e ge
n pr
otec
tion.
•
Oth
er id
eas
- see
cou
rse
web
pag
e an
d cl
ick
on U
sefu
l Web
Lin
ks.
•N
ew te
chno
logi
es -
eg. o
ptic
al V
Ts?
•O
ut o
f ste
p, lo
ad s
hedd
ing,
sys
tem
sep
arat
ion.
•R
elay
set
tings
and
sys
tem
coo
rdin
atio
n.Pi
lot s
chem
es.
•Bl
ocki
ng, p
erm
issi
ve, o
verre
ach,
und
erre
ach.
•
End-
to-e
nd li
ne re
lay
test
ing
(GPS
coo
rdin
atio
n)•
Mul
ti-te
rmin
al li
ne p
rote
ctio
n•
IEC
618
50 -
use
of h
igh
band
wid
th in
trane
t for
pee
r-pee
rco
mm
unic
atio
ns a
mon
g re
lays
.