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54 Guidelines for planning the electrical installation
The abbreviations used in the table are defined below.
Abbreviation
Definition
U
Nominal AC line voltage
N
Û
Peak line-to-line voltage at motor terminals which the motor insulation must withstand
LL
P
Motor nominal power
N
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)
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).
Nominal AC supply
voltage
U
< 500 V
Standard
N
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
U
< 420 V
Standard: Û
N
420 V < U
< 500 V Standard: Û
N
or
Reinforced: Û
microsecond rise time
Motor insulation
ABB du/dt and common mode filters, insulated N-end motor
system
+ N
Motor insulation system
= 1300 V
LL
= 1300 V
LL
= 1600 V, 0.2
LL
Requirement for
bearings
100 kW < P
< 200 kW
N
140 hp < P
< 268 hp
N
Requirement for
ABB du/dt filter, insulated N-end bearing and ABB
common mode filter
100 kW < P
IEC 315 < frame size < IEC 400
134 hp < P
NEMA 500 < frame size < NEMA530
+ N + CMF
+ N + du/dt + CMF
+ N + CMF
P
> 200 kW
N
P
> 268 hp
N
+ N + CMF
< 350 kW or
N
< 469 hp or
N
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