[EVDL] GE EV100 controller breaking down (again) with 11" motor
My conversion has a GE EV100 controller which is essentially
a forklift controller, happily whistling along while driving.
This controller is connected to a 120V golfcart battery pack
and it drives a GE 11" series motor.
I heard from other people having issues with other controllers
(mostly Curtis) and this large motor, because the large motor
has too low inductance, allowing the current to ramp up too
fast and hitting (or crossing) the max allowed current limit,
stressing or even blowing the controller.
The EV100 has actually quite a number of safety features,
so that even while the transistors blew (It has two in
parallel to share the load) and shorted the motor across
the pack, the controller regognised the situation (current
over limit) and dropped the main contactor so I lost power
instead of racing at full power...
Now my question is if anyone has experience with the EV100
controller and large series motors? Is the best solution
to avoid continuing blowing transistors to scale up to
newer (600A - 1200A) transistors instead of the original
parts that are likely a max of 300A or so, or should I
simply add an inductor in series with the motor?
Thanks for any suggestions,
Cor van de Water
Proxim Wireless Corporation http://www.proxim.com
Email: firstname.lastname@example.org Private: http://www.cvandewater.com
Skype: cor_van_de_water XoIP: +31877841130
Tel: +1 408 383 7626 Tel: +91 (040)23117400 x203
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