[NSRCA-discussion] Arming Plug/Receptacle Problem

[AtwoodDon at aol.com]

Ron, here is a thread on RCG about the sparking.......   As Chris  mentions, 
some ESC manufacturers might not want a slow charge on the  capacitors.
 
_http://www.rcgroups.com/forums/showthread.php?t=920960&highlight=esc+spark_ 
(http://www.rcgroups.com/forums/showthread.php?t=920960&highlight=esc+spark) 
 
Don
 
 
In a message dated 2/9/2009 8:56:27 A.M. Pacific Standard Time,  
cjm767driver at hotmail.com writes:

Ron.  Not sure what type controller you are running but if it's a  Castle, 
here is a copy from their FAQs:

3. When I plug in my  high voltage battery pack (4s-12s lipo, 12-20 NiMH) 
into my Phoenix HV or  Phoenix-125, etc. controller there is a large spark. Why?  
The spark is your friend. If ever you plug your pack into your controller  
and you don’t see the spark, contact tech support at 
_support at castlecreations.com_ (mailto:support at castlecreations.com)  or  (913) 390-6939 and send the 
controller in for repair. Your capacitors  will need to be changed. NEVER fly if 
you do not see  the spark, especially with high voltage applications! The higher 
the voltage,  the bigger the spark should be. Remember, the spark is your  
friend!!!

Chris
PS - I have 500 flights on one  Deans Ultra connector and no issues with 
connection  quality
Ron Van Putte wrote: 
I have a problem which I am sure many other E-powered airplane  owners have 
that I'd like to solve.  I use an arming plug to connect  the two 5S Lipo packs 
to the ESC.  On initial contact of the arming  plug with the receptacle, 
there's a big spark thrown.  Eventually the  contacts on the arming plug and 
receptacle get burned to the point where the  electrical contact is very bad.  
Yesterday I had to land my airplane  deadstick because (I think) the ESC saw what 
it thought was low voltage out  of the battery that was actually due to the 
burned arming plug/receptacle  contacts.  BTW, I am using high-amp Anderson 
Power Pole connectors,  which are probably more susceptible to having the contacts 
burned than would  Deans Ultra connectors. 

I have thought about putting a BIG  capacitor in parallel with the arming 
plug, that would damp the initial  current surge which causes the spark.  The 
capacitor could be removed  before flight.  However, I'm wondering if there's a 
more elegant  solution. 

Ron Van Putte  

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