{"id":9970,"date":"2009-12-21T11:26:11","date_gmt":"2009-12-21T16:26:11","guid":{"rendered":"https:\/\/setsail.com\/alternator-cooling\/"},"modified":"2009-12-21T11:26:11","modified_gmt":"2009-12-21T16:26:11","slug":"alternator-cooling","status":"publish","type":"post","link":"https:\/\/setsail.com\/alternator-cooling\/","title":{"rendered":"Alternator Cooling"},"content":{"rendered":"
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Big alternators require substantial air flow to keep them cool.This requirement is often at odds with the need to protect the drive belts.<\/p>\n
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If the alternators do not have good air flow their efficiency drops and the diodes, bearings, and windings lead a hard and relatively short life.<\/p>\n
This is not as big an issue if you are using alternators with remote diode assemblies (as we are on the FPB 64s), but it is still a concern.<\/p>\n
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Most engine manufacturers have tight belt guards which cut down on cooling. In a yacht with a small battery bank and light DC loads you can get away with this. But not with bigger systems if you expect long alternator life.<\/p>\n
Circa’s elegant solution is shown in these photos. There is visual openness for cursory inspection, and good air flow.<\/p>\n","protected":false},"excerpt":{"rendered":"