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-   -   Pre-charge resistor for resistor carts? (http://www.buggiesgonewild.com/electric-ezgo/35052-pre-charge-resistor-resistor-carts.html)

e-z-go1988 07-02-2010 09:39 AM

Pre-charge resistor for resistor carts?
 
From Alltrax Tech Note 010

Pre-Charge Resistor:
The resistor, typically seen across the big terminals
on the contactor, pre-charges the filter capacitors in
the controller. This minimizes the voltage across the
contactor to reduce arcing on the contacts as they
close.
Closing the contactor without a pre-charge resistor
causes arcing on the contact surface and they can
become pitted.
Question:
Is a pre-charge resistor necessary or helpful (for contact life) for resistor carts?

keith.ericson 06-13-2011 11:17 PM

Re: Pre-charge resistor for resistor carts?
 
I have a 1995 ezgo DCS. The speed controller went bad. I replaced it, it works except the precharge resistor gets insanely hot after about 30 seconds of use. Any ideas?

CART-ZILLA 06-14-2011 11:27 AM

Re: Pre-charge resistor for resistor carts?
 
from what i've seen on here you do need it if not it can damage your controller i think...........SCOOOOOOOTTTTTTTIIIIIIEEEEEEEEE-BBBBBBB !!!!!!!!!!!!!! WHERE ARE YOUUUUUU.......LOL

keith.ericson 06-14-2011 01:18 PM

Re: Pre-charge resistor for resistor carts?
 
I know I need it. Was just curious if someone knew why it got so hot. Someone said it might be the motor cables rubbing against the frame and causing resistance. But I checked them, rather the mobile golf cart repair guy did, and they look good.

CART-ZILLA 06-14-2011 07:46 PM

Re: Pre-charge resistor for resistor carts?
 
The only time mine got hot was it when my controller was going out and I know you said you u got a new 1 .... scotty or andy will know...

pggroves 06-20-2011 09:55 PM

Re: Pre-charge resistor for resistor carts?
 
Quote:

Originally Posted by e-z-go1988 (Post 423234)
From Alltrax Tech Note 010

Pre-Charge Resistor:
The resistor, typically seen across the big terminals
on the contactor, pre-charges the filter capacitors in
the controller.
This minimizes the voltage across the
contactor to reduce arcing on the contacts as they
close.
Closing the contactor without a pre-charge resistor
causes arcing on the contact surface and they can
become pitted.
Question:
Is a pre-charge resistor necessary or helpful (for contact life) for resistor carts?

Answer is no since resistor carts do not have an electronic speed controller.

buckmanmike 06-20-2011 11:06 PM

Re: Pre-charge resistor for resistor carts?
 
PG is right. There is no pre charge resistor on resistor carts. If you upgrade to a controller, yes you need one for cheap insurance on your electric system.

GIJOE98 06-20-2011 11:08 PM

Re: Pre-charge resistor for resistor carts?
 
just a late night thought...

Ya'll realize this thread was started a year ago? hmm... maybe keith.ericson would have received more attention had he started a new post?

@keith.ericson: sorry I can't help you :( did you ever find the cause?

Joe


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