ABB ACS880-37LC, Hardware Manual

Page: 62 / 202

If you plan to use a non-ABB high-output motor or an IP23 motor, consider these additional
requirements for protecting the motor insulation and bearings in drive systems:
• If motor power is below 350 kW: Equip the drive and/or motor with the filters and/or
bearings according to the table below.
• If motor power is above 350 kW: Consult the motor manufacturer.
Requirement for Nominal AC supply
voltage
ABB du/dt and common mode filters, insulated N-
end motor bearings
Motor insulation system
100 kW < P
N
< 350 kW or
IEC 315 < frame size <
IEC 400
P
N
< 100 kW or frame
size < IEC 315
134 hp < P
N
< 469 hp or
NEMA 500 < frame size <
NEMA 580
P
N
< 134 hp or frame size
< NEMA 500
+ N or CMF + N or CMF Standard: Û
LL
= 1300 V U
N
≤ 500 V
+ N + d u /d t + CMF + d u /d t + (N or CMF) Standard: Û
LL
= 1300 V 420 V < U
N
< 500 V
or
+ N or CMF + N or CMF Reinforced: Û
LL
= 1600 V,
0.2 microsecond rise time
+ N + d u /d t + CMF + d u /d t + (N or CMF) Reinforced: Û
LL
= 1600 V 500 V < U
N
≤ 600 V
or
+ N + CMF + N or CMF Reinforced: Û
LL
= 1800 V
+ N + d u /d t + CMF + N + d u /d t Reinforced: Û
LL
= 1800 V 600 V < U
N
≤ 690 V
+ N + CMF + N + CMF
Reinforced: Û
LL
= 2000 V,
0.3 microsecond rise
time
1)
1) If the intermediate DC circuit voltage of the drive is increased from the nominal level due to long term resistor braking
cycles, check with the motor manufacturer if additional output filters are needed in the applied drive operation range.
Additional note for sine filters
A sine filter also protects the motor insulation system. The peak phase-to-phase voltage
with a sine filter is approximately 1.5 ·
U
N
. Check the availability of the sine filter from ABB.
Selecting the power cables
￭ General guidelines
Select the input power and motor cables according to local regulations.
• Current: Select a cable capable of carrying the drive (or motor) nominal current.
• Temperature: For IEC, select a cable rated for at least 70 °C (90 °C for IP55 [UL Type
12]) maximum permissible temperature of conductor in continuous use. For North
America, power cables must be rated for 90 °C (194 °F) or higher with derating.
• Voltage: 600 V AC cable is accepted for up to 500 V AC. 750 V AC cable is accepted
for up to 600 V AC. 1000 V AC cable is accepted for up to 690 V AC.
Use symmetrical shielded power cables. They reduce electromagnetic emissions of the
whole drive system as well as the stress on motor insulation, bearing currents and wear.
To comply with the European EMC requirements, use a preferred cable type. See
Recommended power cable types (page 64) .
62 Guidelines for planning the electrical installation