Maxwell electromagnetics amps-turn question

paulflano · May 8, 2014, 10:09

Hi guys,

Quick question on setting the excitation current on an ansys Maxwell electromagnetics analysis:

I have a coil which has 1500 turns with 15 amps flowing through it. Do I set the excitation current as 22500 amps in the current excitation or will I create a single coil terminal with 1500 conductors and specify the inital current as 15A when specifying a winding to the coil terminal.

Aplogies if im missing something obvious here, first time using Maxwell.

Thanks in advance,

Paul

paulflano · May 9, 2014, 10:12

Just as an update, ran the model at 22500 amp-turns and the results are 3 times higher than measured results on a real life setup. From further reading I can see specifying inital current and defining windings etc. Relates to transient magnet analysis. So what i have dobe above is what the ansys guide recommends.

Now to find out why the results are so high... Really losing faith in FEA systems! :/

srijan.rio · May 24, 2016, 02:34

Hello. I have to design a coil having 120 AT and 60 turns. I intend to do transient simulation. I have a confusion regarding whether shall I use the no of conductors in the current excitation as 60 and the current magnitude in winding as 2A or 120 A ? If you could kindly guide me it would be really helpful

May 8, 2014, 10:09	Maxwell electromagnetics amps-turn question	#1
paulflano New Member Join Date: May 2014 Posts: 2 Rep Power: 0	Hi guys, Quick question on setting the excitation current on an ansys Maxwell electromagnetics analysis: I have a coil which has 1500 turns with 15 amps flowing through it. Do I set the excitation current as 22500 amps in the current excitation or will I create a single coil terminal with 1500 conductors and specify the inital current as 15A when specifying a winding to the coil terminal. Aplogies if im missing something obvious here, first time using Maxwell. Thanks in advance, Paul

May 9, 2014, 10:12		#2
paulflano New Member Join Date: May 2014 Posts: 2 Rep Power: 0	Just as an update, ran the model at 22500 amp-turns and the results are 3 times higher than measured results on a real life setup. From further reading I can see specifying inital current and defining windings etc. Relates to transient magnet analysis. So what i have dobe above is what the ansys guide recommends. Now to find out why the results are so high... Really losing faith in FEA systems! :/

May 24, 2016, 02:34		#3
srijan.rio New Member srijan.rio Join Date: May 2016 Posts: 10 Rep Power: 9	Hello. I have to design a coil having 120 AT and 60 turns. I intend to do transient simulation. I have a confusion regarding whether shall I use the no of conductors in the current excitation as 60 and the current magnitude in winding as 2A or 120 A ? If you could kindly guide me it would be really helpful