TAM 00682 30
DSC 045-100 07 / 2012
Three-phase synchronous motor English
9.8 Malfunctions in operation
Malfunction Cause Remedy
Temperature rise in the motor
Motor temperature monitoring
unit trips
Water cooling not active.
Coolant supply inadequate
- Deposits in the cooling
channels
- Faults in the external cooling
system
Check and switch on if
necessary
Check water circuit
- Check, and clean if
necessary
- Follow plant supplier’s
instructions
Overpressure in the cooling
system
Heavily soiled coolant
Cooling channels blocked
Malfunctions in the external
cooling system
Filter coolant
Check and, if necessary,
clean
Follow plant supplier’s
instructions
Table 9: Malfunctions water cooling
9.9 Inspection
During regular cleaning the flow rate and the pressure ratio of the cooling system must be checked
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