TAM 00695
26
DST2-135
– 400 W
10 / 2019
Three-phase synchronous motor, water-cooled
English
.
Leak test acc. to EN 50178:
The cooling system is to be checked for leaks before commissioning by pressure
testing with coolant (water). The test pressure must be twice the operating pressure
(minimum test pressure 1 bar). The coolant used does not have to be brought to
operating temperature for this purpose. Pressure must be maintained until all areas
have been tested for leaks (minimum test duration 10 minutes).
8.4 Electrical connections
The standard power connection for water-cooled motors has to be carried out according to the
dimensional drawings of the technical documentation.
8.5 Specifications for required coolant volume flows
For information about the required quantities of cooling please consult the product list DST2-135 -
400W.
8.6 Coolant consistency
The coolant must satisfy the following specifications:
Conditions
Unit
Value
Maximum permissible systempressure
bar
6
Temperature of coolant- for motor
°C
10 to 25
pH value (at 20 °C)
---
6.5 to 9
Overall hardness
mmol / l
1.43 to 2.5
Chloride - Cl-
mg / l
< 200
Sulfate - SO
4
²-
mg / l
< 200
Oil
mg / l
< 1
Permissible particle size of solid foreign objects,
particles (e.g., sand)
mm
< 0.1
Table 8: Coolant consistency
Clean water that is free of dirt and suspended matter must be used as a coolant.
