Technical data and characteristics
14.1 Explanations of the formula abbreviations
3UHVVXUHGURSDWUHFRPPHQGHGPLQLPXP YROXPHIORZUDWHDFFRUGLQJWRGDWDVKHHW
˂SLQEDU
9LQOPLQ
Figure 14-3 Sample characteristic: "Pressure losses in the main cooler over volume flow rate"
Data, precision motor cooler
QP,MAX
P,MIN
ΔTp
˂7.LQ
Maximum heat loss dissipated via the precision cooler when the motor is utilized up to the rated torque MN and at the rated temperature TN.
Recommended minimum volume flow rate in the precision cooler to achieve a minimum temperature increase on the mounting surface of the stator
TVORL.
The temperature increase of the coolant between the intake and return flow circuit of the precision cooler at operating point QP,MAX and P,MIN can be estimated using the following formula:
Average water density: ρ = 1000 kg/m3
Average specific thermal capacity of water: cp = 4.18 · 103 J/(kg K)
Temperature deviation from intake temperature: ΔTP in K
Volume flow: in m3/s
&RROLQJPHGLXPWHPSHUDWXUHLQFUHDVHDWUHFRPPHQGHG PLQLPXPYROXPHIORZUDWHDFFRUGLQJWRGDWDVKHHW
9LQOPLQ
Figure 14-4 Sample characteristic "Temperature increase of the coolant between the inlet and return flow circuit of the precision cooler"
180 | 1FW6 |
Configuration Manual, 05/2009, |