TAM 00682 27
DSC 045-100 07 / 2012
Three-phase synchronous motor English
9.3 Instructions for installation
Coolant is supplied and discharged via smooth stainless steel tubes Ø8 x 1 on the NDE of the
motors.
A suitable connection to the external cooling circuit can be made for example using John Guest
quick connect fittings type SM 040808 S (Ø 8 to Ø 8). Any other connector approved for connecting
to smooth stainless steel tubes and capable of withstanding the operating and testing conditions
may also be used.
Cooling circuit connection:
The coolant pipes should not exert compression-tension forces or torsional strain on
the motor connections.
The connection must be made by specially trained personnel. During this process the
motor must disconnected and electrically isolated.
When coupling and uncoupling the coolant pipes, make sure that coolant does not
enter the motor's terminal box.
.
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).
9.4 Electrical connections
The standard power connection for water-cooled motors has to be carried out according to the
dimensional drawings of the technical documentation.
9.5 Specifications for required coolant volume flows
Motortype
Volume flow
in l / min
Pressure
decrease
± 15 % in bar
Heating
in K
Max. coolant
pressure in bar
Connection(2x)
in mm
DSC071K64W 5 0,33 3 6
stainless steel tube
Ø8 x 1
DSC071S64W 5 0,4 5 6
stainless steel tube
Ø8 x 1
DSC071M64W 5 0,5 6 6
stainless steel tube
Ø8 x 1
DSC100K64W 5 0,34 3 6
stainless steel tube
Ø8 x 1
DSC100S64W 5 0,4 5 6
stainless steel tube
Ø8 x 1
DSC100M64W 5 0,46 7 6
stainless steel tube
Ø8 x 1
Table 7: coolant volume flows
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