234
ELSPEC
G
G
4
4
K
K
F
F
i
i
x
x
e
e
d
d
P
P
o
o
w
w
e
e
r
r
Q
Q
u
u
a
a
l
l
i
i
t
t
y
y
A
A
n
n
a
a
l
l
y
y
z
z
e
e
r
r
U
U
S
S
E
E
R
R
&
&
I
I
N
N
S
S
T
T
A
A
L
L
L
L
A
A
T
T
I
I
O
O
N
N
G
G
U
U
I
I
D
D
E
E
VOLTAGE UNBALANCE
Voltage unbalance is ev aluated at intervals o f 1 0 m in w ithin o bservation
window o f 1 w eek. E valuation is o nly at i ntervals in w hich v oltage is in side
nominal bou ndary of [+15.0%,-15.0%]. U nbalance l imit N 1 is s et t o 2 .00% a nd
must be kept 95.0% of observation time. Intervals with voltage interruption are
discarded. Intervals with DIPS or Over voltage are discarded.
VOLTAGE FLICKER
Flicker s everity is evaluated w ithin observation w indow of 1 week. D uring
interruption F licker in terval is d iscarded. D uring D IPS o r O ver v oltage F licker
Interval is discarded. Plt (2 hours) must be equal or under 1.0 during 95.0% of
observation time.
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