ABB ACQ810 - Explosion-Safe (EX) Motors

54 Planning the electrical installation
* manufactured before 1.1.1998
** For motors manufactured before 1.1.1998, check for additional instructions with the motor manufacturer.
The abbreviations used in the table are defined below.
Explosion-safe (EX) motors
The motor manufacturer should be consulted regarding the construction of the motor
insulation and additional requirements for explosion-safe (EX) motors.
Non-ABB motors
Random-
wound
and form-
wound
U
N
< 420 V Standard:
Û
LL
= 1300 V
- + N or CMF + N + CMF
420 V < U
N
< 500 V Standard:
Û
LL
= 1300 V
+ du/dt + du/dt + N + du/dt + N + CMF
or
+ du/dt + CMF
or
Reinforced:
Û
LL
= 1600 V,
0.2
microsecond
rise time
- + N or CMF + N + CMF
500 V < U
N
< 600 V Reinforced:
Û
LL
= 1600 V
+ du/dt + du/dt + N + du/dt + N + CMF
or
+ du/dt + CMF
or
Reinforced:
Û
LL
= 1800 V
- + N or CMF + N + CMF
600 V < U
N
< 690 V Reinforced:
Û
LL
= 1800 V
+ du/dt + du/dt + N + du/dt + N + CMF
Reinforced:
Û
LL
= 2000 V,
0.3
microsecond
rise time
- N + CMF N + CMF
Abbr. Definition
U
N
Nominal voltage of the supply network
Û
LL
Peak line-to-line voltage at motor terminals which the motor insulation must withstand
P
N
Motor nominal power
du/dt du/dt filter at the output of the drive
CMF Common mode filter
N N-end bearing: insulated motor non-drive end bearing
n.a. Motors of this power range are not available as standard units. Consult the motor manufacturer.
Motor
type
Nominal AC line
voltage
Requirement for
Motor
insulation
system
ABB du/dt filter, insulated N-end bearing and ABB common mode
filter
P
N
< 100 kW
and
frame size < IEC 315
100 kW < P
N
< 350 kW
or
frame size >
IEC 315
P
N
> 350 kW
or
frame size >
IEC 400
P
N
< 134 hp
and frame size <
NEMA 500
134 hp < P
N
< 469 hp
or frame size >
NEMA 500
P
N
> 469 hp
or frame size >
NEMA 580