ABB Modures LZ91 - Page 22

20
From (1) with N = 100:
x.
l.
m. =--
1
The value of m obtained in this way is then rounded to the next smaller value
as given in Table 3.13.
By inserting this value of m in equation (1) the actual N setting can now be
obtained.
H m.
N.
l.
=-
.
100
l.
IN
x.
l.
x
1
= 0.26 Ohm
x2
= 0.4 Ohm
x =
3
0.54 Ohm
Ratings factor H/IN
0.2 with H
=
1
for UN
= 110 v
and
I =
5 A
N
0.26
1.3 rounded to 0.5
(see Table 3 .13)
ml
=
ml
=
0.2
measuring range:
0.4
2 rounded to 1
m2
=
m2
=
0.2
m3
0.54
0.2
= 2.7 rounded to m
3
1
percentage
settings: Nl 0.2
0.5
100 38
=
.
.
0.26
N2 0.2
1
100
50
=
.
.
=
0.4
N3
0.2
.
1
100
37
=
.
0.54
Main processor unit settings:
thumbwheel switch
ml
=
II
m2
II
m3
II
thumbwheel switch
Nl
38
N2
=
50
N3
37
(