54 Guidelines for planning the electrical installation
The abbreviations used in the table are defined below.
Additional requirements for ABB motors of types other than M2_, M3_, M4_, HX_
and AM_
Use the selection criteria given for non-ABB motors.
Additional requirements for 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. This table shows the requirements for ABB random-wound
motor series (for example, M3AA, M3AP and M3BP).
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.
Abbreviation Definition
U
N
Nominal AC line voltage
Û
LL
Peak line-to-line voltage at motor terminals which the motor insulation must withstand
P
N
Motor nominal power
du/dt du/dt filter at the output of the drive
CMF Common mode filter (option +E208)
N N-end bearing (Insulated motor non-drive end bearing)
Nominal AC supply
voltage
Requirement for
Motor insulation
system
ABB du/dt 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
Nominal AC
supply voltage
Requirement for
Motor insulation system ABB du/dt 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 < NEMA530
U
N
< 420 V Standard: Û
LL
= 1300 V + N + CMF
420 V < U
N
< 500 V Standard: Û
LL
= 1300 V + N + du/dt + CMF
or
Reinforced: Û
LL
= 1600 V, 0.2
microsecond rise time
+ N + CMF