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Why the magnetization current is not sinusoidal even though the input voltage is sinusoidal?
Wiki User
∙ 13y ago
In ferromagnetic materials,such as electrical steel,the magnetisation curve is not a straight line,or else the relation B=μH is not linear ( μ is not constant),H is linear function of magnetization current,while B is linear function of input voltage ,so we have : Im=f(μ)U,where f(μ) is not constant,Im=magnetization (magnetizing) current, U=input voltage.
I hope this will help.
Wiki User
∙ 13y ago
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"nonsinusoidal current" is any current that is not sinusoidal - it could be a wave such as a square wave, triangle wave, etc. DC (direct current) is non sinusoidal. This term is often used in reference to currents that you "would expect" to be sinusoidal (such as the current to your house is sinusoidal at 50 or 60 hz) but aren't - such as transformer inrush current, magnetizing currents,...any current with large amounts of harmonics. AC current is also (generally) not sinusoidal due to the way power supplies only conduct from the input when the rectifier filter capacitor needs to be recharged during each line cycle. That results in a pulsing current, even though the voltage is mostly sinusoidal.
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