3000W Chinese Gensets Info.
professor95 wrote: EDIT ADDED 45/5/2013- When this thread started in March of 2005, I never expected to see it survive this long or amass the quantity of information that has been shared here. In...
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Err….. points and condenser….. I just put a set in a dump truck about a week ago. Have a couple extra sets for different things in the storage bin around here.
And a snubbing capacitor is far from ideal. If it is a low value cap then it will have the same effect as a cap/condenser in an ignition. It will hold off the voltage spike long enough for the points to open (not arc) but the peak voltage spike will potentially damage the insulation on the inductor the contacts are driving. If you use a large capacitor to absorb the energy and prevent the large voltage spike, then your contacts will be subjected to a very large current spike when they engage. The cap is completely discharged. So it is almost like closing on a dead short. It doesn’t do the contacts any good.
And from real world experience, a diode is far more reliable than a capacitor is under server conditions and with old age. More electronic equipment dies from failing capacitors, than from semiconductor problems. When I have a piece of equipment that is starting to act fritzy the first thing I do a thorough check of….. is the capacitors in the unit. More often than not, changing a couple flaky ones will bring it back to life. I usually switch out all the critical ones anyway.
As a mater of fact, I have a DSL modem right behind me that I have changed a few bad caps on. It had a couple low ESR capacitors in it’s switching power supply that were taking a dirt nap..
And a snubbing capacitor is far from ideal. If it is a low value cap then it will have the same effect as a cap/condenser in an ignition. It will hold off the voltage spike long enough for the points to open (not arc) but the peak voltage spike will potentially damage the insulation on the inductor the contacts are driving. If you use a large capacitor to absorb the energy and prevent the large voltage spike, then your contacts will be subjected to a very large current spike when they engage. The cap is completely discharged. So it is almost like closing on a dead short. It doesn’t do the contacts any good.
And from real world experience, a diode is far more reliable than a capacitor is under server conditions and with old age. More electronic equipment dies from failing capacitors, than from semiconductor problems. When I have a piece of equipment that is starting to act fritzy the first thing I do a thorough check of….. is the capacitors in the unit. More often than not, changing a couple flaky ones will bring it back to life. I usually switch out all the critical ones anyway.
As a mater of fact, I have a DSL modem right behind me that I have changed a few bad caps on. It had a couple low ESR capacitors in it’s switching power supply that were taking a dirt nap..
