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ABB Modures LZ92-1 - Page 4

ABB Modures LZ92-1
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List
of
abreviations
and
symbols
I
Bmax
U,1
z.
1
Index
i
Index
p
Index
s
2
phase
currents
neutral
current
load
current
max.
load
current
possible
balancing
current
rated
current
fault
current
phase-to-neutral
voltages
ratio
of
zero
to
positive-sequence
impedances
(neutral
current
factor)
phase-angle
of
line
difference
voltage
(difference
between
fault
voltage
and
replica
impedance
voltage)
sum
voltage
(sum
of
fault
voltage
and
replica
impedance
voltage)
forwards
resp.
reverse
replica
reactances
of
the
underimpedance
starters
of
LZ92
or
LZ92-l
reactance
of
line
impedance
of
zone
i
positive-sequence
impedance
of
line
zero-sequence
impedance
of
line
zone
No.
primary
values
secondary
values

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