Hello Everyone,
I have a 1KW ferrite core transformer that transforms 250V AC to 3-5kV in between ( 30-90 kHz).
I made a long duration test for 8 hours with maximum load.
The temperature results are as follows:
Windings : 95°C
Ferrite Core : 100°C @ 30kHz
115°C @90kHz
Room temperature is around 40°C .( testing in a hot environment).
NOTE:The transformer doesn't have any fans / ventilators for cooling. But the complete transformer is potted in a housing with a epoxy material to enhance the electrical isolation. The potting material has a decent thermal conductivity.
The potting material,litz wire in the transformer and the ferrite core can withstand up to 175°C.
Is this too hot for a 1kW transformer?
I have a 1KW ferrite core transformer that transforms 250V AC to 3-5kV in between ( 30-90 kHz).
I made a long duration test for 8 hours with maximum load.
The temperature results are as follows:
Windings : 95°C
Ferrite Core : 100°C @ 30kHz
115°C @90kHz
Room temperature is around 40°C .( testing in a hot environment).
NOTE:The transformer doesn't have any fans / ventilators for cooling. But the complete transformer is potted in a housing with a epoxy material to enhance the electrical isolation. The potting material has a decent thermal conductivity.
The potting material,litz wire in the transformer and the ferrite core can withstand up to 175°C.
Is this too hot for a 1kW transformer?