ABB ACS880-77CC Hardware Manual page 9

Wind turbine converters
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Connector data .....................................................................................
Contents of this chapter ...........................................................................
Contents of this chapter ...........................................................................
Hardware description ..............................................................................
General ..........................................................................................
Diagram of the internal cooling and heating circuit ........................................
Planning the cooling system .....................................................................
Connection to a cooling unit ..................................................................
General requirements ......................................................................
Coolant temperature control ...............................................................
Mechanical installation ............................................................................
Connecting the liquid pipes ................................................................
Filling up and bleeding the internal cooling circuit ............................................
Converters with a customer cooling unit ....................................................
Draining the internal cooling circuit ..............................................................
Cooling station control ............................................................................
Specifications .......................................................................................
Temperature limits ..............................................................................
Pressure limits ..................................................................................
Water quality ....................................................................................
Freeze protection and corrosion inhibition ..................................................
Coolant concentration ......................................................................
Coolant mixture quality .....................................................................
Approved coolants ..........................................................................
Materials .........................................................................................
Converter cold start ................................................................................
First start in a commissioning .................................................................
Normal start and start after blackout ........................................................
Cold start with cold climate kit ................................................................
Converter dry-out ..................................................................................
Manual dry-out ..................................................................................
Automatic software-controlled dry-out .......................................................
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