ABB ACS880-07XT Series, Hardware Manual, Page: 61 / 168

Guidelines for planning the electrical installation 61
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 with nominal power smaller than 350 kW. For bigger
motors, consult the motor manufacturer.
Nominal AC
supply voltage
Requirement for
Motor insulation system
ABB d u /d t filter, insulated N-end bearing and
ABB common mode filter
100 kW < P
N
< 350 kW or
IEC 315 < frame size < IEC 400
134 hp < P
N
< 469 hp or
NEMA 500 < frame size < NEMA 580
U
N
< 420 V Standard: Û
LL
= 1300 V + N + CMF
1)
420 V < U
N
< 500 V Standard: Û
LL
= 1300 V + N + d u /d t + CMF
or
Reinforced:
Û
LL
= 1600 V,
0.2 microsecond rise time
+ N + CMF
1)
500 V < U
N
< 600 V Reinforced: Û
LL
= 1600 V + d u /d t + N + CMF
or
Reinforced:
Û
LL
= 1800 V + N + CMF
1)
600 V < U
N
< 690 V Reinforced: Û
LL
= 1800 V + N + d u /d t + CMF
Reinforced: Û
LL
= 2000 V,
0.3 microsecond rise time
***
N + CMF
1)
*** 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.
1)
also d u /d t filter is required at the output of the basic drive modules if the motor cable length is
less than 20 meters before connecting the motor cables together