Author Topic: Motor specifications confusion  (Read 555 times)

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Offline MastermimeTopic starter

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Motor specifications confusion
« on: January 26, 2012, 10:32:59 PM »
Hello everyone,

I bought these motors http://www.monsterscooterparts.com/24vo400wamow.html and I'm confused about the specifications.

Here are the specs I'm confused with
Rated Current: 22 amps
Rated Voltage: 24
Wattage: 400

It doesn't come out right

22*24=528 not 400

Am I overlooking something?

Offline Soeren

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Re: Motor specifications confusion
« Reply #1 on: January 27, 2012, 01:16:07 AM »
hI,

Here are the specs I'm confused with
Rated Current: 22 amps
Rated Voltage: 24
Wattage: 400

It doesn't come out right

22*24=528 not 400

Am I overlooking something?
Yes. The page says "Output: 400 Watts", while you're calculating the input power.
Which means that it has an efficiency of 75.8% (given that the info is correct).
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

 


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