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Registered Member #1403
Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968
Spedy wrote ...
Hmm, I think I remember reading somewhere about home-made inductive ballasts, big rolls of wire w/ sliding iron cores to adjust them. If not that I also remember reading about a cheap water resistor based around a small garbage can and some copper pipe.
Which would be better, resistive/inductive? should I worry too much about the power factor?
the powerplants are interested in a powerfactor of 1, since that will be the optimal load conditions on the power distribution lines, because we pay our power by the watts and not that VAr. Its only a disadvantage to the powerplants and therefor they require powerfactor correction to minimize the stress on the distribution network.
In Denmark it is required to balance the PF to between 0.9 - 1 in the industry, no rules of this kind applies to households as the amount of installations causing this problem is pretty low.
Registered Member #152
Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
Spedy wrote ...
Which would be better, resistive/inductive? should I worry too much about the power factor?
Inductive is better of course because the "power" it sees is only apparent, so it does not turn into heat. If you have a big >500W mains transformer, you can modify that to make an inductive ballast and adjust the inductance by varying a gap in the core.
The water resistor might work for your first tries, just fill a bucket with water and dip two big metal plates into it. Then add salt until you get the desired resistance.
Registered Member #152
Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
hydraliskdragon wrote ...
Hey Dr. Monster Arc can you help me make a proper resonance operated using two MOT's and two MOC's?
I think this is getting a bit OT, you should post in a more apropriate thread (such as Resonant MOT arcs). For basic resonance, you need 2 caps per MOT, or 4 caps with 2 MOTs. However, if you have an adjustable inductive ballast, you can get resonance with just 2 (seriesed) caps and 2 MOTs if you set up your ballast properly, but the arcs will not be as big as with 4 caps of course.
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Extracting parts from a Microwave
