TAM 00746
27
DSP1 045 - 100
11 / 2019
Three phase synchronous motor
English
9
Appendix 2: Version with water cooling
In addition to the previous chapters, the following must also be observed for water-cooled motors
(EN 60034-6; IC 3W7):
9.1
Performance definition for water-cooled machines
The power ratings (torques) listed in the table apply to continuous operation S1 at rated speed as
long as the cooling circuit requirements for water-cooled motors are met!
When operating the motors with higher coolant inlet temperatures, the reduction factors in the fol-
lowing table must be taken into account:
Coolant inlet temperature
25 °C
30 °C
35 °C
40 °C
45 °C
Percent of list power (torque)
100 %
97 %
95 %
92 %
89 %
Table 6: Reduction factors
9.2
Motor cooling
The cooling system of the water-cooled engines is made of stainless steel.
The two water connections (inlet and outlet) on the B-side of the motors are supplied as standard
with a stainless steel pipe Ø8 x 1 without additional connection technology.
In the coolant (designed according to the coolant composition according to chapter 9.6), admixtures
of corrosion and germ protection additives are permitted in closed cooling circuits. Type and quanti-
ty of these additives depend on the respective recommendations of the manufacturer and the pre-
vailing ambient conditions..
The safety regulations of the corresponding corrosion and germ protection agent
manufacturers for the product must be strictly observed.
Cooling lubricants from machining processes must not be used to cool the motor!
Note: The project planning of the entire cooling system is the responsibility of the plant constructor.
Condensation must always be avoided.
