ABB ACS880-17 - Circuit Diagrams

Guidelines for planning the electrical installation 71
 Requirements table
The following table shows how to select the motor insulation system and when an optional
drive du/dt and common mode filters and insulated N-end (non-drive end) motor bearings
are required. Ignoring the requirements or improper installation may shorten motor life or
damage the motor bearings and voids the warranty.
Motor
type
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
< 350 kW
or
IEC 315 <
frame size <
IEC 400
P
N
> 350 kW
or
frame size >
IEC 400
134 hp <
P
N
< 469 hp
or
NEMA 500 <
frame size <
NEMA 580
P
N
> 469 hp
or
frame size > NEMA 580
ABB motors
Random
-wound
M2_,
M3_ and
M4_
U
N
< 500 V Standard + N + N + CMF
500 V < U
N
< 600 V Standard + N + du/dt + N + du/dt + CMF
or
Reinforced + N + N + CMF
600 V < U
N
< 690 V
(cable length <
150 m)
Reinforced + N + du/dt + N + du/dt + CMF
600 V < U
N
< 690 V
(cable length > 150 m)
Reinforced + N + N + CMF
Form-
wound
HX_ and
AM_
380 V < U
N
< 690 V Standard + N + CMF P
N
< 500 kW:
+N + CMF
P
N
> 500 kW
+N + du/dt + CMF
Old*
form-
wound
HX_ and
modular
380 V < U
N
< 690 V Check with
the motor
manufacturer.
+ N + du/dt with voltages over 500 V + CMF
Random
-wound
HX_ and
AM_ **
0 V < U
N
< 500 V Enamelled
wire with fiber
glass taping
+ N + CMF
500 V < U
N
< 690 V + N + du/dt + CMF
HDP Consult the motor manufacturer.
* manufactured before 1.1.1998
** For motors manufactured before 1.1.1998, check for additional instructions with the motor manufacturer.