CPC Subgroup
H01F 27/08 Cooling (heat-transfer elements F28F); Ventilating (structural details of casings H01F27/02)
Full Title
Details of transformers or inductances, in general > Cooling (heat-transfer elements F28F); Ventilating (structural details of casings H01F27/02)
4 direct subcodes
Child Classifications
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- H01F 27/10 Liquid cooling
- H01F 27/20 Cooling by special gases or non-ambient air
- H01F 27/22 Cooling by heat conduction through solid or powdered fillings