An inductor core charged magnetically produces an opposing 'current' on supply disconnection as the magnetic charge is induced into the winding. The return 'current' depends on the value of the inductor and is proportional to the voltage across the load. -L di/dt. The above is basics we all know. I think the correct term should be power or EMF, 'current' was the issue on the page I read on some random HV site in regards to I sqrd t with DOL switching inductive loads. The switchgear contacts being where the bemf will cause damage if low velocity types are used as the arc current is higher with lower voltages. Suppressors or snubbers not mentioned. It mentioned somewhere that this bemf acts like a constant current source under certain conditions. Perhaps I misunderstood it somewhat at that time. The only constant I see, thinking about it, is large inductances can kick like a mule if you're too close lol. The pulse sharpening aspect I've mentioned years ago. This is what I want to use with some external control. It's having the option of precision timing that can be adjusted with a bonus of the charge already in the inductor at switch on of the control coil I want to use. You disconnect the power source and it kicks back so disconnecting the magnetic storage, it kicks forwards? I should read up again on some of this, its been a few decades in certain areas of the subject. The internet works fine if you're on the correct page. OUR is a very fine page in my book. 
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Topic: Saturable reactors. (Read 9733 times)
