Monster motor

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Re: Monster motor

Postby esoria » Wed Jun 06, 2012 2:27 am

Boys i have found a friend with a Kelly KHB 700A phase 90V...
I hope we can try this controller in the next week, maybe we can feel more power than kelly 400A from this beast of motor :)
esoria
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Re: Monster motor

Postby esoria » Sun Jun 17, 2012 1:56 pm

Some news..
Today i try kelly khb 90v 700a phase from a friend, with this beast of controller and with 20s 16a nano cells, motor go mooore strong and controller never cut out power :)
But i see strange thing, i expect to see from 700a motor controller alot more amp from battery side, but i see only 140\150 on cycle analyst???
Motor have 6awg wire,very big, but now start become hot,with 700a controller...
But how is possible look only 140a battery surge?
esoria
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Re: Monster motor

Postby Doctorbass » Sun Jun 17, 2012 11:53 pm

esoria wrote:Some news..
Today i try kelly khb 90v 700a phase from a friend, with this beast of controller and with 20s 16a nano cells, motor go mooore strong and controller never cut out power :)
But i see strange thing, i expect to see from 700a motor controller alot more amp from battery side, but i see only 140\150 on cycle analyst???
Motor have 6awg wire,very big, but now start become hot,with 700a controller...
But how is possible look only 140a battery surge?



Are you 100% sure your C-A is well calibrated?

Back in 2009 I saw my 5302 with dual gauge 12 teflon wire becoming hot with 290A phase current with Fluke 4 wire kelvin sensing method for calibrating the shunt.

130A batt current and 290A phase current... with a 18 fets controller ( extreme Doc mod version as well 8)

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Re: Monster motor

Postby esoria » Mon Jun 18, 2012 7:13 am

Yes Doc, my ca is calibrated, the strange things of this motor is, at low speed, or from standstill, the power is not very impressive for a big motor like this, and drawing from battery is low too, but after 60kmh, start to pull very much and strong and AMP from battery goes up, i think this motor surge alot more from 50-60kmh, and very little from stop...
i don't know why, someone have a technical explain for this?I imagine motor surge alot more from standstill...
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