Cooling Water Inlet Temperature (Water-Cooled Motor) - Siemens SIMOTICS HT Series Operating Instructions & Installation Instructions

Preparations for use

4.4 Cooling water inlet temperature (water-cooled motor)

Chloride
Manganese
Fluoride
Sulfate
Copper
Silicic acid
Free carbon dioxide
Total salts
Nitrate
Suspended matter
Permanganate consump‐
tion
Total hardness
Carbonate hardness
Ammonium content
Iron content
4.4 Cooling water inlet temperature (water-cooled motor)
The motor has two cooling circuits that can be used to achieve intensive, effective cooling.
● The fan inside the motor provides air circulation between DE and NDE. This cools, in
● The motor housing is designed with a water-cooling system. This allows a high power
Close the duct provided for cooling on the cooling circuit. The cooling duct geometry is
designed so that the stator power losses are dissipated. Forced air ventilation prevents local
temperature peaks inside the motor. This also draws off the low magnetic losses in the rotor
via the stator.
Ambient and coolant inlet temperature
To prevent the formation of condensation, the coolant inlet temperature for a stationary motor
and still operational cooling system must be higher than the ambient temperature.
T
The motor is designed in accordance with EN 60034‑1 for operation up to a coolant
temperature of 25 °C, maintaining all motor data. If you operate the motor with a higher coolant
28
Cl
Mn
F
SO
2-
4
Cu = Total copper
SiO
2
CO
2
NO
-
3
O
Mg+Ca
HCO
-
3
N ISO 11732 /
NH ISO 14911
+
4
Fe = Total iron
particular, the stator winding overhang, the magnetic rotor and the bearings.
density. The coolant flows through a duct that runs in a spiral from the DE to the NDE in
the cooling jacket. The coolant inlet is on the DE, the coolant outlet is on the NDE. Seen
from the shaft end, connection is possible from the right and from the left.
≥ T + 2 °C
cooling water ambient
<150 mg/l
<0.05 mg/l
<0.05 mg/l
<150 mg/l
<0.1 mg/l
<25 mg/l
0 mg/l
<1000 mg/l
<20 mg/l
<10 mg/l
<12 mg/l
<12 °DH
<12 °DH
<10 mg/l
<0.2 mg/l
DIN 38405-1
DIN 38406-2
DIN 38405-4
DIN 38405-5
DIN 38406-7
F1 (DIN 38407-1)
G1 (DIN 38408-1)
DIN 38409-1
DIN 38405-9
DIN 38409-2
H4 (DIN 38409-5)
DIN 38409-6
DIN 38404-10
DIN 38406-5
DIN 38406-1
SIMOTICS HT Series HT-direct 1FW4...1......A
Operating Instructions 11/2018
ISO 9297
ISO 6333 /
ISO 11885
ISO 10359-1
ISO 10304
ISO 8288 /
ISO 11885
ISO 16264
-
-
ISO 7890-1
(Z) /
ISO 10304
ISO 11923
ISO 8467
ISO 6059
ISO 9963-1
ISO 11732 /
ISO 14911
ISO 6332 /
ISO 11885