Hardware Manual

64 Planning the electrical installation
Additional requirements for non-ABB high-output and IP23 motors
The rated output power of high output motors is higher than what is stated for the
particular frame size in EN 50347 (2001). The table below shows the requirements for
random-wound and form-wound non-ABB motors.
Nominal AC line
voltage
Requirement for
Motor
insulation
system
ABB du/dt filter, insulated N-end bearing and ABB
common mode filter
P
N
< 100 kW or frame
size < IEC 315
100 kW < P
N
< 350 kW
or
IEC 315 <
frame size <
IEC 400
P
N
< 134 hp or frame
size < NEMA 500
134 hp < P
N
< 469 hp
or
NEMA 500 <
frame size
<
NEMA 580
U
N
< 420 V Standard: Û
LL
=
1300 V
+ N or CMF + N + CMF
420 V < U
N
< 500 V Standard: Û
LL
=
1300 V
+ du/dt + (N or CMF) + du/dt + N + CMF
or
Reinforced:
Û
LL
= 1600 V,
0.2
microsecond
rise time
+ N or CMF + N + CMF
500 V < U
N
< 600 V Reinforced: Û
LL
= 1600 V
+ du/dt + (N or CMF) + du/dt + N + CMF
or
Reinforced:
Û
LL
= 1800 V
+ N or CMF + N + CMF
600 V < U
N
< 690 V Reinforced:
Û
LL
= 1800 V
+ du/dt + N + du/dt + N + CMF
Reinforced:
Û
LL
= 2000 V,
0.3
microsecond
rise time ***
N + CMF N + CMF
*** If the intermediate DC circuit voltage of the drive is increased from the nominal level by
resistor braking, check with the motor manufacturer if additional output filters are needed
in the applied drive operation range.