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Author Topic: 2200 kv motor  (Read 1924 times)

mook

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2200 kv motor
« on: August 08, 2011, 08:25:53 PM »

Hi once again I'm trying to work out something that completely confuses me lol I have just brought a new motor a 2200kv from giant god I will post the stats but I need to no will it work with a 30 amp speed control ??

Giantcod Guarantee

2212-06 28A 2200KV SP Brushless Outrunner Motor

Specifications:

RPM per volt : 2200
No Load Current / 10V: 1.4A
Wire Winds / Turns: 12
Ni-Mh Battery: 6 - 10 cells
Li-Po Battery: 2 / 3 cells
Max efficiency current: 14~22 A (>75%)
Max efficiency: 72%
Max Current: 28A / 60 sec
Dimension: 27.5 x 30mm
Shaft: 3.17mm
Weight: 47g
Recommended Model Weight: 300 - 1000g (700g Heli)
Recommended Propeller without gearbox
3 cells Li-Po : 5.25" x 4.75"
2 cells Li-Po: 7" x 5"
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john s 2

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Re: 2200 kv motor
« Reply #1 on: August 08, 2011, 08:55:12 PM »

Fuse the esc for no more than its rating.Better a 5p fuse than a repair bill.All should be ok but remember a
stalled motor can draw high amps. But if fused you have a safeguard. John
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andrewh

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Re: 2200 kv motor
« Reply #2 on: August 08, 2011, 09:12:38 PM »

Hi, rchammer

Simple answer is yes. probably

I can help with a complete breakdown of what the description means, but it might only be more confusing
This is an outrunner motor for a very light direct drive parkflyer (aircraft), where it will get lots of fresh , cool, air :}

Bear this in mind

Taking the ni-mh battery - the cells are 1.2 V each, so the maximum volts is 12 and the max continuous current 22A
Multiply these and you ahve the max watts  12 x 22 is 264W

AND at this voltage (12) the revs are 12 x 2200 kV (which means revs/volt) so that is  24600 RPM (or 440 Revs/sec :}!)
THATS why the reccommended props are small (for an outrunner)

So the max continuous current is 22A (when it is well air-cooled)
Bit less in a boat - say 15A

So a 30A speed controller should be fine.
now your mission is to feed it a prop that lets it really spin fast at whatever voltage you aim to give it

Any clearer?
andrew
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Dekan

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Re: 2200 kv motor
« Reply #3 on: August 08, 2011, 10:11:28 PM »

What are you putting this motor in ? I use the same motor in one of my "wings" I does about 60mph on a 6x4 prop.

A 25A ESC. has proved ok so far. about 170W on a fully charged 11.1 V lipo

Dont load it up too much with too big a prop.. as this type of motor likes to rev...
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mook

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Re: 2200 kv motor
« Reply #4 on: August 09, 2011, 09:42:18 AM »

That's exactly what I'm going to use a 6x4 apc prop building a air boat for laugh read some one else's post going to run it on 2200 mph 7.4 lipos. Where abouts do u fit this fuse?
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Dekan

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Re: 2200 kv motor
« Reply #5 on: August 09, 2011, 01:06:26 PM »

I have never used a fuse on any of my planes...So I wouldn't bother on a Airboat either

I don't think that fuses are very usefull on a normall boat if you are using the bec on the esc.... if weed gets tangled round the prop and blows the fuse, which normally goes btween the + lead on the esc and the battery....you loose all power anyway..

My experiance with fuses is that transistors can fail faster than fuses can blow ;)
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