Calculate power required to operate superconducting magnet

AI Thread Summary
Calculating the power required for superconducting magnets presents challenges due to their low resistance, which leads to unexpectedly low power requirements that may not be feasible in practice. The discussion highlights that traditional electromagnets, like those used in MRI machines, operate at higher amperages and voltages, complicating direct comparisons. A superconducting magnet's power consumption is primarily influenced by the refrigerator's energy needs rather than resistive losses. The user seeks assistance in determining how to calculate the power needed for a superconducting electromagnet capable of lifting one ton from a height of two meters. Understanding these dynamics is crucial for effective magnet design and application.
losbellos
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Dear Friends,

The great problem lies in here : I have calculated the power requirement of an electromagnet. That Its huge . To minimize this power requirement I would like to see if its possible with super conducting magnet, but I am having a problem, because the power requirement are so low, that it cannot be, and also the turns naturally not valid, Only the Resistance which is very low 1.0e-02x.

So having the resistance and the Amperes required using the P=U*I and I = U/R (remember its DC)
then the power would be very low, that the amperes are simply not possible in real life.
Against this I also happen to know the usual MRI devices uses 50-150 Amperes and some 20-50 volt. This makes some sense but in terms of power requirement still not.

A 7-9 Tesla electromagnet have incredible mechanical capabilities as well.

So, say I would like to have a magnet which can lift 1 tons from 2 meter.

Anybody can help how to calculate this out with superconducting electromagnets?
 
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The power to run these magnets is determined by the power of the refrigerator, not the resistive losses in the magnet.
 
thx I look into it.
 

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