Requirements for non-ABB motors,
P
n
< 100 kW (134 hp)
See also Abbreviations (page 102).
Requirement forNominal AC line
voltage
Motor type
ABB d
u
/d
t
and common mode filters, in-
sulated N-end motor bearings
Motor insu-
lation sys-
tem
P
n
< 100 kW and frame size < IEC 315
P
n
< 134 hp and frame size < NEMA 500
-Standard:
Û
LL
=
1300 V
U
n
≤ 420 VRandom-wound
and form-wound
+ d
u
/d
t
Standard:
Û
LL
=
1300 V
420 V <
U
n
≤
500 V
-Reinforced:
Û
LL
=
1600 V,
0.2 µs rise
time
+ d
u
/d
t
Reinforced:
Û
LL
=
1600 V
500 V <
U
n
≤
600 V
-Reinforced:
Û
LL
=
1800 V
+ d
u
/d
t
Reinforced:
Û
LL
=
1800 V
600 V <
U
n
≤
690 V
-
Reinforced:
Û
LL
=
2000 V,
0.3 µs rise
time
1)
1)
If the intermediate DC circuit voltage of the drive is increased from the nominal level due to long term
resistor braking cycles, check with the motor manufacturer if additional output filters are needed.
100 Guidelines for planning the electrical installation