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  #11  
Old 01-19-2011, 09:59 AM
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Plamenator Plamenator is offline
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Default Re: Kostov 9" 220V HV motor?

They are not on the site indeed.
We are starting the first batch for customers and stock in 10 days.
Until then I have some final tweaking to do so I expect proper drawing+performance curves to be uploaded in 2-3 weeks time.
A good battery for it will be something like 70x90Ah lithium cells to give 224V/~210kg/~8500$/20kWh.

BTW, we should also have the new Soliton Junior in stock within a month.

If you have any suggestions/questions about this motor, I will be glad to hear them
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  #12  
Old 02-09-2011, 12:39 PM
GerhardRP GerhardRP is offline
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Default Re: Kostov 9" 220V HV motor?

Quote:
Originally Posted by Plamenator View Post
I expect proper drawing+performance curves to be uploaded in 2-3 weeks time.
The drawing is up twice, one following the pointer to the drawing, the other reached by following the performance curves link .
Gerhard
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  #13  
Old 06-30-2012, 09:33 AM
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Default Re: Kostov 9" 220V HV motor?

Quote:
Originally Posted by Bowser330 View Post

With the Soliton-1 controller 220KW(295HP) is possible for as long as the motor can hold 1000A at speed, however with 220V i imagine the 295HP would only be available up to 3500rpm or so...
Quote:
Originally Posted by Bowser330 View Post
RoughRider may have been referencing my post above stating "295hp"

220V*1000A = 220kw = 295hp ~ 300hp
this really confuses me ,........
the power that the motor can supply is it not the nominal voltage of the battery*motor current??? or as it is calculated above as battery voltage* controller current???
if second one is the case then can't we use a high current rated controller with a low power rating (comparatively) to get high output power??
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  #14  
Old 06-30-2012, 05:27 PM
somanywelps somanywelps is offline
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Default Re: Kostov 9" 220V HV motor?

Quote:
Originally Posted by kishor5466 View Post
this really confuses me ,........
the power that the motor can supply is it not the nominal voltage of the battery*motor current??? or as it is calculated above as battery voltage* controller current???
if second one is the case then can't we use a high current rated controller with a low power rating (comparatively) to get high output power??
Battery voltage sags under load.

Also examine battery discharge rates.

Your last sentence doesn't make sense. "lower power rating" to get "high output power"
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  #15  
Old 08-15-2012, 07:00 PM
Bowser330 Bowser330 is offline
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Default Re: Kostov 9" 220V HV motor?

Quote:
Originally Posted by kishor5466 View Post
this really confuses me ,........
the power that the motor can supply is it not the nominal voltage of the battery*motor current??? or as it is calculated above as battery voltage* controller current???
if second one is the case then can't we use a high current rated controller with a low power rating (comparatively) to get high output power??
Power in = Power out (minus losses) << This site has taught me that

So when I said 220V and 1000A i meant both at the motor. So 220V is your sagged pack voltage...meaning you motor will never be voltage(rpm) limited.

275V battery pack sagged 20% = 220V, so even when drawing 1000A, your pack voltage can be 220V.
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