Thermal Management; Motor Temperature - Levitronix BPS-200 User Manual

4.4 Thermal Management

4.4.1 Motor Temperature

The motor temperature depends on the ambient and liquid temperature, as well as on the hydraulic
operation point. Figure 11, Figure 12 and Figure 14 illustrate the temperature characteristics of the motor
depending on these parameters. For higher liquid temperatures and hydraulic operating points active cooling
is recommended for example with the air cooling module ACM-1.1 (see Figure 13, Table 1).
0.0 1.0
95
Absolute Temp. Limit
85
75
0
[ C]
65
55
45
35
25
0.0 2.5
Figure 11: Temperature curves for the BSM-1.x motor @ 25 C liquid temperature
(Pumping with pump head LPP-200.1, temperature is measured inside of the motor, contact temperature
of surface is below this temperature)
0.0 1.0
95
85
75
65
0
[ C]
55
45
35
25
0.0 2.5
Figure 12: Temperature curves for the BSM-1.x motor @ 70 C liquid temperature
(Pumping with pump head LPP-200.1, temperature is measured inside of the motor,
contact temperature is below this temperature)
PL-4012-00, Rev01, DCO# 09-188
[gallons/min]
2.0 3.0
10000 rpm
9000 rpm
— Supply = 24 VDC
- - - Supply = 48 VDC
5.0 7.5 10.0
[liters/min]
[gallons/min]
2.0 3.0
9000 rpm
8000 rpm
— Supply = 24 VDC
- - - Supply = 48 VDC
5.0 7.5 10.0
[liters/min]
4.0
8000 rpm
12.5 15.0 17.5
4.0
7000 rpm
5000 rpm
Recommended Operational Limit
4000 rpm
Ambient Temp = 25 C
Liquid Temp. = 70 C
Specific gravity = 1 g/cm
Viscosity = 0.7 cP
12.5 15.0 17.5
User Manual for BPS-200
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5.0 6.0
7000 rpm
6000 rpm
Recommended
Operational Limit
Ambient Temp = 25 C
Liquid Temp. = 25 C
3
Specific gravity = 1 g/cm
Viscosity = 0.7 cP
20.0 22.5 25.0
5.0 6.0
6000 rpm
Absolute Temp. Limit
3
20.0 22.5 25.0
197
177
157
[F]
137
117
97
77
197
177
157
[F]
137
117
97
77
12