Explosion-Safe (Ex) Motors - ABB ACS800-17LC Hardware Manual

72
Motor type Nominal AC line
N Random- U < 420 V
N
wound and
O
form-wound
N 420 V < U
-
A
B
B
500 V < U
600 V < U
* manufactured before 1.1.1998
** For motors manufactured before 1.1.1998, check for additional instructions with the motor manufacturer.
*** If the intermediate DC circuit voltage of the drive is increased from the nominal level, check with the motor
manufacturer if additional output filters are needed in the applied drive operation range.
Note 1: The abbreviations used in the table are defined below.
Abbreviation
U
N
Û
LL
P
N
du/dt
CMF
N
n.a.

Explosion-safe (EX) motors

Consult the motor manufacturer regarding the construction of the motor insulation and additional
requirements for explosion-safe (EX) motors.
Planning the electrical installation
voltage
Motor insulation
system
Standard: Û
LL
1300 V
< 500 V Standard: Û
N LL
1300 V
or
Reinforced: Û
1600 V, 0.2
microsecond rise
time
< 600 V Reinforced: Û
N
1600 V
or
Reinforced: Û
1800 V
< 690 V Reinforced: Û
N
1800 V
Reinforced: Û
2000 V, 0.3
microsecond rise
time ***
Definition
Nominal voltage of the supply network
Peak line-to-line voltage at motor terminals which the motor insulation must withstand
Motor nominal power
du/dt filter at the output of the drive +E205
Common mode filter +E208
N-end bearing: insulated motor non-drive end bearing
Motors of this power range are not available as standard units. Consult the motor
manufacturer.
Requirement for
ABB du/dt filter, insulated N-end bearing and ABB common mode
P < 100 kW
N
and
frame size < IEC 315
P < 134 hp
N
and frame size <
NEMA 500
= -
= + du/dt
= -
LL
= + du/dt
LL
= -
LL
= + du/dt
LL
= -
LL
filter
100 kW < P < 350 kW
N
or
frame size > IEC 315
frame size > IEC 400
134 hp < P < 469 hp
N
or frame size >
NEMA 500
+ N or CMF + N + CMF
+ du/dt + N + du/dt + N + CMF
or
+ du/dt + CMF
+ N or CMF + N + CMF
+ du/dt + N + du/dt + N + CMF
or
+ du/dt + CMF
+ N or CMF + N + CMF
+ du/dt + N + du/dt + N + CMF
N + CMF N + CMF
P > 350 kW
N
or
P > 469 hp
N
or frame size >
NEMA 580