54 - PVD 3622_GB_TM_January 2014.Docx
If we suppose that the rated voltage U
n
=347 V
rms
decreases of
10%
; this means that
the new rated voltage becomes U
n2
=312V
rms
.
Rated speed:
The former rated speed N
n
=140 rpm obtained with a rated voltage U
n
=347 V
rms
and
an efficiency of
=89.3% leads to the new rated speed N
n2
given as follows:
1
*
2
2
n
n
n
n
U
U
N
N
rpm
N
n
124
893
.
0
893
.
0
1
347
312
*
140
2
Maximum speed:
The former maximum speed N
max
= 175 rpm obtained with U
n
=347 V
rms
and N
n
=140
rpm leads to the new maximum speed N
max2
given as follows:
n
n
N
N
N
N
2
max
2
max
*
rpm
N
155
140
124
*
175
2
max
N.B.
If the rated voltage increases (U
n2
> U
n
), the new rated speed N
n2
and the new
maximum speed N
max2
will be greater than the former ones N
n
and N
max
. Moreover
you will have to check that the drive still shows able to deal with the new maximum
electric frequency.
Warning: If the mains supply decreases, you must reduce the
maximum speed accordingly in order not to damage the motor.
In case of doubt, consult us.
Rated power:
The former rated power P
n
=318 kW obtained with U
n
=347 V
rms
leads to the new
rated power P
n2
given as follows:
n
n
n
n
U
U
P
P
2
2
*
kW
P
n
285
347
312
*
318
2
Rated torque:
The former rated torque M
n
= 21700 Nm obtained with U
n
=347 V
rms
leads to the new
rated torque M
n2
given as follows:
60
*
*
2
2
2
2
n
n
n
N
P
M
Nm
M
n
21947
60
124
*
*
2
285000
2
Summary of Contents for TM Series
Page 1: ...1 PVD 3622_GB_TM_January 2014 Docx Torque Motors TM Series Technical Manual PVD 3622...
Page 57: ...57 PVD 3622_GB_TM_January 2014 Docx 3 3 1 2 Shaft Height 200 mm Thrust bearing 29424...
Page 61: ...61 PVD 3622_GB_TM_January 2014 Docx 3 3 2 2 Shaft Height 315 mm Thrust Bearing 29426...
Page 62: ...62 PVD 3622_GB_TM_January 2014 Docx 3 3 2 3 Shaft Height 315 mm Thrust Bearing 29430...
Page 66: ...66 PVD 3622_GB_TM_January 2014 Docx 3 3 3 2 Shaft Height 400 mm Thrust Bearing 29434...
Page 67: ...67 PVD 3622_GB_TM_January 2014 Docx 3 3 3 3 Shaft Height 400 mm Thrust Bearing 29440...
