Introduction: Thermal Impressions: Cooling Fan Performance.
After modding the cooling arrangement on my off grid inverter, I wanted to check that the new fan was doing its job. The inverter case is kept warm, not hot, when my air conditioner is on. This is a good sign.
The thermal image shows hot spots where the power semiconductors are located.
The seek thermal xr camera was used for this inspection.
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Step 1: The Fan.
The DC brushless fan draws air through the inverter and then exhausts it. The hot spot temperature is 97C which is pretty high but I have a ready supply of spares when it fails.