RC-Monster Forums - View Single Post - Amp draw of a Neu 1515

BrianG · 04:45 PM

From what I can tell from most motor manufacturers, they seem to rate it using the following procedure:

1: Get the max continuous rpm. The 1515 is good for 60k rpm.

2: Get the motor kv. The 1515/1y kv is 2200.

3: Get the working voltage using the max rpm (step 1) and motor kv (step 2). 60,000 / 2200 = 27.27v.

4: Get the motors max continuous power rating. The 1515 is rated 1500w IIRC.

5: Figure out the max continuous current using the working voltage (step 3) and max power (step 4): 1500w / 27.27v = 55A.

Don't forget, this is a continuous rating. Depending on a lot of factors, the current can be more or less. No matter what, the motor will pull at least twice that value for initial bursts (starts and accleration), and pull less than that to maintain speed.

	(#2)
BrianG RC-Monster Admin Offline Posts: 14,609 Join Date: Nov 2005 Location: Des Moines, IA	08.11.2008, 04:43 PM From what I can tell from most motor manufacturers, they seem to rate it using the following procedure: 1: Get the max continuous rpm. The 1515 is good for 60k rpm. 2: Get the motor kv. The 1515/1y kv is 2200. 3: Get the working voltage using the max rpm (step 1) and motor kv (step 2). 60,000 / 2200 = 27.27v. 4: Get the motors max continuous power rating. The 1515 is rated 1500w IIRC. 5: Figure out the max continuous current using the working voltage (step 3) and max power (step 4): 1500w / 27.27v = 55A. Don't forget, this is a continuous rating. Depending on a lot of factors, the current can be more or less. No matter what, the motor will pull at least twice that value for initial bursts (starts and accleration), and pull less than that to maintain speed. Last edited by BrianG; 08.11.2008 at 04:45 PM.