Hardware Manual

Planning the electrical installation 61
Non-ABB motors
Random-
wound
and form-
wound
U
N
< 420 V Standard:
Û
LL
= 1300 V
- + N or CMF
420 V < U
N
< 500 V Standard:
Û
LL
= 1300 V
+ du/dt + du/dt + (N or CMF)
or
Reinforced:
Û
LL
= 1600 V,
0.2
microsecond
rise time
- + N or CMF
500 V < U
N
< 600 V Reinforced:
Û
LL
= 1600 V
+ du/dt + du/dt + (N or CMF)
or
Reinforced:
Û
LL
= 1800 V
- + N or CMF
600 V < U
N
< 690 V Reinforced:
Û
LL
= 1800 V
+ du/dt + du/dt + N
Reinforced:
Û
LL
= 2000 V,
0.3
microsecond
rise time ***
-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.
Motor
type
Nominal AC supply
voltage
Requirement for
Motor
insulation
system
ABB du/dt and common mode filters,
insulated N-end motor bearings
P
N
< 100 kW
and frame size
< IEC 315
100 kW <
P
N
< 350 kW
or
IEC 315 <
frame size <
IEC 400
P
N
< 134 hp
and frame size
< NEMA 500
134 hp <
P
N
< 469 hp
or
NEMA 500 <
frame
size <
NEMA 580