Mar 17, 2014 #1 R rahul91 Junior Member level 2 Joined Nov 23, 2013 Messages 20 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 132 Hi, I want to design a high frequency(100KHz) transformer of 125A secondary current. What can be the maximum current density to be assumed(secondary and primary) , if the application is a welding power supply...?
Hi, I want to design a high frequency(100KHz) transformer of 125A secondary current. What can be the maximum current density to be assumed(secondary and primary) , if the application is a welding power supply...?
Mar 18, 2014 #2 V Velkarn Full Member level 3 Joined Feb 17, 2014 Messages 162 Helped 84 Reputation 168 Reaction score 89 Trophy points 1,308 Activity points 2,326 8-12 A/mm2 for intermittent duty of welding.
Mar 19, 2014 #3 R rahul91 Junior Member level 2 Joined Nov 23, 2013 Messages 20 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 132 Velkarn said: 8-12 A/mm2 for intermittent duty of welding. Click to expand... Thanks Velkarn
Mar 22, 2014 #4 M m.mokhtar Member level 3 Joined Apr 10, 2005 Messages 60 Helped 4 Reputation 10 Reaction score 2 Trophy points 1,288 Activity points 1,680 For this frequency you have to use multiple isolated stranded wires. to lower the effect of skin effect.
For this frequency you have to use multiple isolated stranded wires. to lower the effect of skin effect.