ABB ACQ810-04, Hardware Manual, Page: 47 / 144

Planning the electrical installation 47
Additional requirements for high-output motors and IP23 motors
If you will use a motor with the rated output power higher than what is stated for the
particular frame size in EN 50347 (2001), or if the degree of protection is IP23, follow
these guidelines when defining the protection of the motor:
•
The table below shows the requirements for ABB random-wound motor series (for
example, M3AA, M3AP and M3BP).
•
The table below shows the requirements for random-wound and form-wound non-ABB
motors with
P
N
< 350 kW. For motors with P
N
> 350 kW, consult the motor
manufacturer.
For *, ** and ***, see page 46 .
Nominal AC line
voltage)
Requirement for
Motor
insulation
system
ABB d u /d t and
common mode filters,
insulated N-end motor
bearings
100 kW < P
N
< 200 kW P
N
> 200 kW
140 hp < P
N
< 268 hp P
N
> 268 hp
U
N
< 500 V Standard + N + N + CMF
500 V < U
N
< 600 V Standard + d u /d t + N + d u /d t + N + CMF
or
Reinforced
+ N + N + CMF
600 V < U
N
< 690 V Reinforced + d u /d t + N + d u /d t + N + CMF
Nominal AC line
voltage Requirement for
Motor insulation
system ABB d u /d t and common mode
filters, insulated N-end motor
bearings
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
420 V < U
N
< 500 V Standard: Û
LL
=
1300 V
+ d u /d t + N + CMF
or
Reinforced: Û
LL
=
1600 V, 0.2
microsecond rise
time
+ N + CMF
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
600 V < U
N
< 690 V Reinforced: Û
LL
=
1800 V
+ d u /d t + N + CMF
Reinforced: Û
LL
=
2000 V, 0.3
microsecond rise
time ***
N + CMF