MGM
49
Forced Cooling Motors
AC electric motors operating in non standard conditions (low frequency inverter duty, long overcharge periods, heavy duty
cycles) could need additional cooling servo-fan. BASV series motors with forced cooling are provided with two additional
cooling servo-fans fixed on the motor frame. This cooling system is an MGM patent.
SV series
Motor Type
Dim X
Dim Y
Dim L
Volt
Amp
m
3
/h
dB (A)
SV series motors have the following features:
1.
The standard self cooling fan inside the motor is kept additionally to the two cooling servo-fans.
2.
The whole heating surface is increased as the fan fixing system is itself a heat dissipation element additionally to the existing
fins on the frame.
3.
Low noise level.
4.
No additional motor length compared to the standard one.
5.
Manual brake release with manual rotation.
6.
Uniform winding cooling along the whole motor length.
7.
The brake friction surface is cooled on the motor side.
Where the forced cooling is used to limit the operating temperature in heavy start/stop duty application, it should be noted that the
efficiency of the forced cooling increases with the number of pole of the motor. It’s hard to estimate the amount of hot air removed by the
forced cooling fans but it can be roughly said that it is the same as the air removed by the standard servo-fan of a 4 pole motor operating
at 50 Hz.
It is advisable to use thermal protectors in heavy operating conditions. The table below shows technical details of fans supplied at 230V
single-phase. The servo-fans can be supplied both at 50Hz or 60Hz. On request forced cooling fans can be provided with different voltage
supply.
BMAV series motors with forced cooling are provided with single axial servo-fan replacing the standard motor self cooling fan.
BASV Series
210
230
270
280
300
348
431
485
485
522
107
108
129
129
142
169
184
211
211
221
102
120
129
134
142
169
190
211
211
221
230
230
230
230
230
230
230
230
230
230
2x0.1
2x0.1
2x0.12
2x0.12
2x0.12
2x0.12
2x0.30
2x0.30
2x0.30
2x0.30
93
93
300
300
300
615
615
615
615
615
37
37
39
39
39
59
59
59
59
59
BASV 71
BASV 80
BASV 90
BASV 100
BASV 112
BASV 132
BASV 160
BASV 180
BASV 200
BASV 225