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Unread 28-11-2014, 17:07
Thad House Thad House is offline
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Re: One speed vs Two speed gearboxes

Quote:
Originally Posted by asid61 View Post
That doesn't make sense. It should take more amps than a six cim system per motor. Adding all the motors, a four cim system should use the same number of amps as a six cim system, with a bit of wiggle due to the efficiency curve of the cim.
They do use the same amperage. But the 6 cim version uses less power to to hit the same amperage, because each motor can use less voltage to hit its share of the amperage. Ex. If each cim needs to draw 25 amps in a 4 cim system, it might require 12 volts to do that. That would equal 1200w total. For the 6 cim, each motor only has to draw 16.66 amps, and might only need 9 volts to do that.
Thats only 900w. So less power is used by the 6 cim system to hold the same speed.
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