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Capacitor Impedance for Tormek 1200?

Started by dellis356, July 04, 2025, 11:30:01 AM

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dellis356

What is the micro Farad required for this machine?

Ken S

Welcome to theforum, Derek.

I suggest you email support, (support@tormek.se).

Ken

HaioPaio

#2
What you are looking for is called capacitance, not impedance.
Tormek support will help.

tgbto

Impedance covering capacitance+inductance+resistance (Z=R+jLw+1/jCw), OP was correct...

Ken S

A number of our members have an electrical/engineering background much more advanced than mine. I appreciate that. My electrical background is generally limited to installing and troubleshooting telephone voice and data circuits and self study in home wiring electricity.

I can read charts like Tormek's and understand why a 50 Hertz, 240 Volt motor in not compatable with 60 Hertz 120 Volt US commercial power. I also understand why a motor drawing 200 Watts requires more power than one drawing 120 Watts.

I can not understand the working of the posted formula, or why it is important. I would like to understand this. I believe I am not alone in this. I would humbly request replies going beyond just mouthing formulas. Please share your expertise by educating the rest of us and explaining the conceps involved and whythey are important

I once watched a marvelous VHS tape explaining Einstein's E=MC2. It gave the example of when a baseball is thrown at the speed of light squared, the baseball (matter) becomes Energy. for me, that was very informative. I would like to better understand the Tormek motors.

Ken

tgbto

Ken, the idea of the formula was to substantiate a reply to an objection regarding the choice of words of the OP.

I am no Richard Feynman, so I will not be able to be as clear as a professional teacher. Still, to make a long story short :

The concept of impedance is a generalization of the concept of resistance, i.e. the proportional relationship between current and tension. With a resistance, everything is simple : tension U is related to current I by the U=R.I relationship.

For a capacitor, U is related to the integral of the current over a period of time. But using mathematics in the complex world, integrating is "simply" dividing by j.w (assuming a sinusoidal current, and where j²=-1 and w or "omega"  is the pulsation of the current). So one can write U=Z.I with Z=1/jCw.

Conversely, for a solenoid, U=Z.I with Z=jLw.

Therefore, in electronics, impedance is a generic term covering at once R,L and C. And asking for the impedance of a capacitor is another way of asking for its capacitance. Pretty much in the same way that asking someone for their address will give you the name of their hometown, and a bit more.

As for E=m.c², if I may, there might be a slight twist in your VHS or your recollection of it. To apply E=mc² to your baseball, you would have to thoroughly disintegrate said baseball, and the energy released (in the form of massless photons) would be m.c², m being the rest mass of said baseball. If you could accelerate the ball to lightspeed, its mass would change and things get pretty messy from here. But e=mc² is always true, even for a baseball at rest. And you cannot accelerate it to c², which is not a speed.

Hope this helps,

Nick.

HaioPaio

I was only able to find a capacitor for the T4 and T8 at that website https://www.sharpeningsupplies.com/collections/tormek-replacement-parts.

The capacitance of those capacitors is specified in microfarads, while there is no mention of impedance.
For the T1200, I would ask support.