What is the typical operating temp of 7XL motor? - RC-Monster Forums

zeropointbug · **What is the typical operating temp of 7XL motor? -** 11.29.2006, 09:20 PM

I was wondering if anyone knows what the Feigao 540C 7XL motor can get up to? In either Celsius or Fahrenheit. Say on 5s Lipi battery, and 4s LiPo if you know...

jhautz · 11.29.2006, 10:44 PM

Dont know what temp it can withstand before it demagnatizes, But I 180-200 F is generally accepted as the maximum safe operating temp.

zeropointbug · 11.29.2006, 10:52 PM

I wonder if i could keep it around 120F with my setup geared right and all. It's the 540C-7XL with the heatsink can, so it will run prob 10-20 F cooler than the regular can versions.

jhautz · 11.29.2006, 11:04 PM

In my experience the Feigal XL motors tend to run a little bit hotter than a Lehner or a Neu. My 540C 9XL on 5s tends to run around 160F. My Neu 1515-2.5D has an almost identical KV rateing and runs a good 20-25F cooler in the exact same setup.

With proper gearing, you should not have any issues. Running as high as 180F is still safe and nothing to get worried about.

zeropointbug · 11.29.2006, 11:09 PM

There is a company called Magnetic Power Inc. They claim to have developed a plastic polymer, and exhibits super conductivity at room temperature! They say it's something like 20,000 times more conductive than copper is. This would solve many, MANY problems we are facing in the world. That is, if it's for real and not a grab investor money and flee. ;)

Dafni · 11.30.2006, 03:10 AM

20'000 times the conductivity of copper?? A polymer?? Do you know what that would mean at all?

neweuser · 11.30.2006, 02:12 PM

Quote:

Originally Posted by Dafni

20'000 times the conductivity of copper?? A polymer?? Do you know what that would mean at all?

I'm curious as well!!:005:

zeropointbug · 11.30.2006, 03:29 PM

Yeah, no kidding, who wouldn't be. Imagine how much power you could squeeze into a motor can... you could have SO much torque that the entire motor would be an output shaft to handle it! LOL

Not the mention ~99% efficiency. Well, i already know of a small company that made a wheel motor for solar powered racers that uses the Halbach magnetic array and this motor has 98% efficiency. It's a little different than your typical 3-phase DC motor.

aqwut · 11.30.2006, 03:54 PM

is that the same polymer that IBM is using to store data on their polymer hard drives.... I know they have polymer that can hold 10 times more data than metal discs....

wow.. I thought silver was the best conductor... that's cool...

zeropointbug · 12.01.2006, 02:04 AM

aqwut, i don't think so... well i highly doubt it anyways. (about IBM using it)

There is soo much great technology out there right now, it's unreal.

Serum · 12.01.2006, 12:51 PM

No, i thought the trick IBM is using is more of an analog type of datastorage instead of digital.. (not only 0 and 1, but more steps in between)

This sounds too good to be true. Hard to understand a polymer is capable of this.

aqwut · 12.02.2006, 12:00 AM

yeah, I've read about that polymer data storage a few years ago... but this new ultra conductive polymer, I've never heard of... that is just awesome...