teslanv
1 MW
What is the Weight on the QS?
Dirtech said:Something badass came in the mail today...BCTECH said:Dirtech said:I will wait for the motor to arrive before deciding on a freewheel. But it will definitely be single speed.
I am also using single speed, I think same as almost most people for this high power motor.
since you will be getting the latest version, I am not sure if you are getting the new cover version,, please update us after you receive it.
12.8 kgs. Heavy, but for a reason.teslanv said:What is the Weight on the QS?
Dirtech said:12.8 kgs. Heavy, but for a reason.teslanv said:What is the Weight on the QS?
Looks like Vito is watching this thread because it came with the motor. 8)BCTECH said:looks nice.
Did you successfully install the freewheel?
Can you let me know which freewheel you have ?
Dirtech said:Looks like Vito is watching this thread because it came with the motor. 8)BCTECH said:looks nice.
Did you successfully install the freewheel?
Can you let me know which freewheel you have ?
http://www.aliexpress.com/item/16t-single-speed-flywheel-folding-bike-flywheel-phoenix-bicycle-flywheel/1098340129.html
I believe this is it, but not sure where to get them. Perhaps Vito could assist?
macribs said:@Ridethelightning thx for the details and comparison in your pics. Awesome.
I've been waiting for test data on the QS motor to compare it with cro and mxus 3000. I guess that is moot now
The extra weight compared to mxus 3000 is put to good use in form of copper. Both windings and phase wires.
I just hope we can see some dyno from the QS, I would not be surprised to see qs be on the very top regarding performance. And probably the first motor that can take more current then what the max-e adaptto can deliver.
What you reckon peak power in short bursts for the QS? 12 kw? 15 kw or even 20+ kw?
ridethelightning said:macribs said:@Ridethelightning thx for the details and comparison in your pics. Awesome.
I've been waiting for test data on the QS motor to compare it with cro and mxus 3000. I guess that is moot now
The extra weight compared to mxus 3000 is put to good use in form of copper. Both windings and phase wires.
I just hope we can see some dyno from the QS, I would not be surprised to see qs be on the very top regarding performance. And probably the first motor that can take more current then what the max-e adaptto can deliver.
What you reckon peak power in short bursts for the QS? 12 kw? 15 kw or even 20+ kw?
well from what i have seen, people are getting 12+kw peaks with 5403, which seems to have around half the thikness of phase windings, i think less than a cro, so i would not be surprised if this thing can take 15-18kw peaks. it should all be very calculable, as the number of copper strands at 0.6mm dia x24 strands would mean that the square mm of copper there would determin when it starts to get hot in very short bursts... 1mm square copper=19A as nobuo posted recently...
as vito said, there should be around 8-10mm sqare in the phase wires, so 10mm would be 190A x90v=17,100 watts![]()
anyone who can give a more accurate measurement than this, please speak up. im new to this and dont really understarnd the current flow in the 3 phase windings...
If you need to know how many X gauge wires are equal to Y gauge Z wire(s),
press this .
The answer is: .....
jansevr said:can't wait to see some performance tests. the QS motor looks quite a bit better than the cro. the copper fill looks to be almost 2x that of the cro! do you or anyone else know exactly how much more copper there is? its hard to believe this is only the 3000w rated motor considering the cro v3 is 6000w rated. if the cro can do 10-15kw peaks or more, im guessing this qs motor will have no problem handling 20+kw peaks! now you just need to find a controller that can run that beast
cwah said:What does the number of strands mean?
Doctorbass said:That's why i think it is REALLY important that people should know that it is not ONLY the turn count that matter but also the SIZE OF THE STRANDS
In fact BOTH are important and what describe BOTH the best is the equivalent active cross sectionnal area of copper per turn witch is :
NUMBER OF STRANDS x SIZE OF THAT STRAND = total copper fill per turn
ridethelightning said:so to sumerise the summery- its all about how much copper is stuffed into those cracks :lol:
jansevr said:its hard to believe no manufacture has considered cooling of some sort. any sealed hubmotor is greatly limited in its performance and efficiency. if QS designed and built a air cooled hub, or even redesigned just the sidecovers with vents or scoops of some sort to force air through the motor i think they would have the best hub motor on the market for us high powered hub motor fanatics =) i think 10kw continuous might be possible with sufficient air flow. another rarity in hub motors is 6 phase rather than 3 phase. for higher powered applications (20kw+ peaks) this seems to make the most sense in terms of efficiency and ease of finding suitable controllers as you can run 2 relatively cheap controllers (infineon based) to take 1/2 the load each.
Doctorbass said:Vito, What is the size of the strands of the 50mm MXUS v3?
Thanks
Doc