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-   -   48 v charger, buzz then trip breaker (http://www.buggiesgonewild.com/electric-club-car/109850-48-v-charger-buzz-then-trip-breaker.html)

Bakers dozen 08-23-2015 02:21 PM

48 v charger, buzz then trip breaker
i have a 48v charger that i bypassed the relay to charge some very low drained batteries. batteries were no good and i had not yet put wires on relay and used it to charge my new batteries. i would just monitor the charge and take off when it reached full voltage.

today i tried to replace the wired back onto the relay and after doing so, i got nothing. thinking the relay is bad, i wire nutted the two wires to get constant voltage again. after joining the wires again i got a louder than normal buzz. almost a vibration and then a tripped breaker in the panel. checked connections and tried a few more times. same result. same outlet and same cord. even plugged directly into outlet with no extension.

i put my clamp meter on the wire going into transformer and it read 80 amps just before it throws the breaker.

is it toast or try a rebuild kit.
transformer is very rusty, i would think more so from the elements rather than heat.

rib33024 08-23-2015 09:57 PM

Re: 48 v charger, buzz then trip breaker
Make of the charger

Bakers dozen 08-24-2015 06:28 AM

Re: 48 v charger, buzz then trip breaker
Power drive

mrgolf 08-24-2015 06:53 AM

Re: 48 v charger, buzz then trip breaker
If you unhook the wires what happens? Sounds like a dead short.

teecro 08-24-2015 09:06 AM

Re: 48 v charger, buzz then trip breaker
After my house was struck by lighting the last thing I found damaged was the Power Drive 3 (?) charger; it was doing the same thing you described popping its built-in circuit breaker. In trouble shooting it I found that the transformer was still good as once unhooked from the rectifiers it put out AC voltage. Further trouble shooting showed the I had lost diodes in each SCR bank. Replaced both banks one at a time and it worked fine again.

TahoeDawgZ71 08-24-2015 04:42 PM

Re: 48 v charger, buzz then trip breaker
This is almost always a problem with the diodes / rectifier in the charger. Is your powerdrive charger a #17930, #22110, #26560 or a #26580?

We've got the parts to fix you up, just want to make sure to steer you in the right direction.

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