Cooling - Siemens 1PH813 Operating Instructions Manual

7.5

Cooling

Water cooling
The motor must always be connected to the cooling water supply when in operation.
CAUTION
If the cooling water supply fails or the motor is operated for a short time without cooling
water, this can cause it to overheat. This can result in material damage or destroy the motor
completely.
Never operate the motor without the cooling water supply. Monitor the permissible water
inlet temperatures.
Risk of burning from hot steam
When cooling water enters the hot motor, this immediately generates hot steam that
escapes under high pressure. The cooling water system can burst. This can result in death,
serious injury or material damage.
Do not connect the cooling water supply until the motor has cooled down.
Forced ventilation
Steps must be taken to ensure that the motor is only operated in conjunction with the
separately-driven fan.
CAUTION
If the separately-driven fan fails or the motor is operated for a short time without forced
ventilation, this can cause it to overheat. This can result in material damage or destroy the
motor completely.
Always operate the motor with the separately-driven fan switched on.
Synchronous/induction motors 1PH813
Operating Instructions, 04/2009, 610.48000.22
WARNING
Commissioning
7.5 Cooling
57