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02-08-2008 02:34 AM  10 years agoPost 1
Sig Dawg

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Yorkton, Sask., Canada

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How do electric motors differ from one another? I mean a motor like this http://www.icare-rc.com/plettenberg_predator.htm and something like this http://www.electroauto.com/catalog/acmotors.shtml

Are they basically designed the same way?

Industrial type electric motors that are 1 hp are huge when compared to one of our hobby motors with the same power. Are they rated differently?

Jason

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02-08-2008 03:14 AM  10 years agoPost 2
Topher

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Rochester, Michigan

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Theres many many types of motors, typically divided into two groups, DC and AC, then asynchronous and synchronous, and then theirs sub categories like DFIM, PMM, induction, reluctances motors etc. Typically the ones used in hobbies are permanent magnet synchronous motors. Pretty simple, permanent magnet rotor that chases an excited coil. Theres many reasons why motors are the size and weight that they are. Typically 1hp industrial type motors are larger because they run off AC from the wall and require a lot of windings to run 110v @60hz.

will wash your heli for a quarter

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02-08-2008 03:37 PM  10 years agoPost 3
Sig Dawg

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Yorkton, Sask., Canada

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Thanks,

I was wondering why more motors don't run at higher voltages. especially in light weight high performance applications. It seems to me that running more volts and less amps would be more efficient. Do the motor winding wires need better insulation to be able to withstand the voltage pressure? Also running less amps you could run a smaller guage wire and get more windings out of it.

Jason

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02-12-2008 01:57 AM  10 years agoPost 4
1stPlace

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Ohio USA

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The more powerful brushless motors in our hobby are doing just as you described! In the last year, Great Planes introduced their high voltage speed controls and Castle Creations brought out their Phoenix HV series, both of which are capable of handling up to 50 volts and over 100 amps.

Neu Motors
5/16/07 The first of the new large size helicopter specific motors are finally ready. We have added a fan cooled version of the 15 and 19 series motors--see heli motors The FAQs have updates to include governor settings for the Castle Creations HV controllers.

The 2230 motor along with the Castle Creations new SHV controller are being tested. The setup has been run up to 10hp in early tests. Nothing even was warm. We expect that it will be useable to well over 15hp when testing is finished. The test setup was running a 2230/1.5 motor with our new 62mm gear drive with a 14mm shaft.

2230 Motor and Castle SHV controller being test run on 18S lithium batteries and a 32/10 prop!

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