Thx
Chris Gupta
At 08:06 PM 5/12/98 -0500, you wrote:
>Hello Jim, I have been saying all along, people need to pay attention to
capacitors. I deal with 1,000,000 MFD and 500,000 MFD 25VDC capacitors all
the time and the extra potential you recieve from them is worth looking at.
Do you want to see some more? Wire in a duel DC relay wich will charge the
capacitors from a battery only when when the relay drops out. In other
words, wire it up so that the relay only uses power off the capacitors. The
charge will be instantanious to the capacitors for a microsecond. Then
apply a load to the capacitors through the relay. This is important.. only
apply the load off the capacitors through the relay to keep from drawing
current off the battery. Do not use the current directly off the capacitor
as you are defeating the purpose. If you want to get really into it....
wire in a 3 pole relay with a timer to dual capacitors and charge your
battery back with the extra charge. I have schematics available if anyone
wants them. PS: You must excite the capacitors from the battery to get the
process going.
>
> Robert H. Calloway
>----------
>> From: Breining, Jim C <jimb7563@dmci.net>
>> To: KeelyNet-l@lists.kz
>> Subject: Capacitors self charging?
>> Date: Monday, May 11, 1998 10:51 PM
>>
>> I have a small bank of capacitors ( 8 3300mf 25v in parallel ) that I
>was
>> testing in a circuit. After shorting them to discharge when I was done, I
>> checked the voltage and got a reading of not zero, but 16.5 mV. I took
>> another reading a couple of hours later, and it was up to 25.5 mV. This
>was
>> Saturday 5/9. I took another reading just now (Monday 5/11 11:00 PM) and
>> they were up to 81.5 mV. Readings were done with a Fluke 77 on the
>> 300 mV scale. No equipment has been operating or even plugged in since
>> Saturday when I took the first reading, and the caps have not been
>> touched since except to take a voltage reading. This is all in my
>basement
>> work room which is kept locked.
>> I remember seeing something on Keelynet about dropping a cap or spinning
>one
>> and measuring a voltage increase but not stationary.
>>
>> Any thoughts?
>>
>> Jim
>