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Old 07-03-2009, 05:56 PM
xpskid xpskid is offline
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Join Date: Aug 2008
Posts: 119
dv/dt

Folks,

Is there a critical value of dV/dT which must be obtained before effects start to become apparent ?

Curious how this might affect the choice of armature / pole / cores as well as the geometry of the magnet poles relative the armature poles.

I know others have produced the MW waveforms on their units but have not experienced the effects. Testing documents suggest that these units aren't speed dependent, in other words, once performing as desired, speed could be dropped to ~25% and the load was still powered.

Brings me back to maybe my cast iron is permeable enough or less responsive to the flux flip.

I know I could go to laminated cores, or the welding rods, but that makes for a more challenging build (at least for the Kromrey per the DVD). The video looks to be solid material.

Any thoughts ?

Timm
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