QS273 V3 40H winding list from QSMOTOR

H

howard85may

10 mW
Joined
Apr 19, 2020
Messages
25
For anyone interested, I was able to get a copy of the spec sheet from SiaEcosys, a subsidiary of TZ quanshun (qs motor).

From the source:

QS273 V3 40H EXTRA TYPE

74*222
48v- 970 rpm
60v- 1210 rpm
72v- 1450 rpm

68*232
830
1030
1240

58*323
730
910
1090

52*333
640
800
960

48*343
580
720
870

43*434
530
660
790

32*555
390
480
580
 
These are three pages I found, I guess the first just a general info page, then two listing pages one for the motor only, another for a kit

http://www.cnqsmotor.com/en/article_read/Quanshun%20Motor%203000W%20-%204000%20Watt%20273%2040H%20V3%20DC%20Brushless%20Hub%20Motor%20For%20Bike/833.html

http://www.cnqsmotor.com/en/article_read/QS%20Motor%204000W%20273%2040H%20V3%20E-bike%20Spoke%20Hub%20Motor/260.html
Motor only $465

http://www.cnqsmotor.com/en/article_read/QSMotor%20electric%20bike%20hub%20motor%204000W%20273%2040H%20V3%20electric%20wheel%20hub%20motor%20with%20Conversion%20Kits/550.html
Kit $762.80

_______
I'm struggling to understand the numbers in your chart, how to compare to the listing in their web pages?

_______
for 48V

28*6T 6.25kV 300rpm

45*4T 11.46kV 550rpm

55*3T 15.69kV 753rpm

65*3T 17.71kV 850rpm

_______
What are the units for the first number
28/45/55
like a wire gauge?

I guess corresponding to your
32/43/48/52/58/68/74
?

T means number of turns right?

What are the 222/232/323 units?

How to figure kV ?

If there is a "windings 101" link somewhere that would be appreciated
 
Sia Ecosys is dominion over that website. The guy i spoke with said he is responsible for updating the site and he knew it was out of date. This is what led to me asking for an updated list.

I'm guessing the numbers are some sort of strand count*number of strands? If someone more knowledgeable could clear that up for us.
 
john61ct said:
These are three pages I found, I guess the first just a general info page, then two listing pages one for the motor only, another for a kit

http://www.cnqsmotor.com/en/article_read/Quanshun%20Motor%203000W%20-%204000%20Watt%20273%2040H%20V3%20DC%20Brushless%20Hub%20Motor%20For%20Bike/833.html

http://www.cnqsmotor.com/en/article_read/QS%20Motor%204000W%20273%2040H%20V3%20E-bike%20Spoke%20Hub%20Motor/260.html
Motor only $465

http://www.cnqsmotor.com/en/article_read/QSMotor%20electric%20bike%20hub%20motor%204000W%20273%2040H%20V3%20electric%20wheel%20hub%20motor%20with%20Conversion%20Kits/550.html
Kit $762.80

_______
I'm struggling to understand the numbers in your chart, how to compare to the listing in their web pages?

_______
for 48V

28*6T 6.25kV 300rpm

45*4T 11.46kV 550rpm

55*3T 15.69kV 753rpm

65*3T 17.71kV 850rpm

_______
What are the units for the first number
28/45/55
like a wire gauge?

I guess corresponding to your
32/43/48/52/58/68/74
?

T means number of turns right?

What are the 222/232/323 units?

How to figure kV ?

If there is a "windings 101" link somewhere that would be appreciated
Click to expand...

For motor kv take rpm/voltage=kv.
Ex. 1450/72=20.1388
 
So my 3.5T motor on 92.4v is somewhere in there then :lol:
 
Jonno said:
So my 3.5T motor on 92.4v is somewhere in there then :lol:
Click to expand...

Jonno, i think the 3.5t works out to 960@72 so you should be 13.33kv*92.4 = 1231.99@92.4! :shock:

Would you mind sharing your top speed? I'm considering the 3.5t since i can get it already mounted in 19 wheel..

Edit: According to chart yours should be the 52*333 wind.
 
If looking at it from a strictly copper fill standpoint then 58*323 is capable of handling the most current.
 
john61ct said:
Jonno said:
So my 3.5T motor on 92.4v is somewhere in there then [emoji38]
Click to expand...
Using which controller please?

And what is your top charging voltage?
Click to expand...

Looks like he is using nuclear 24f, I'm on the pre-order waiting list for one. 92.4v so 22s 4.2*22=92.4.
 
Never had the need to go flat out ....but my tame test pilot has been up to 70mph on 84 volts so it'll be a bit faster than that :lol:

I've got 2 x 24fs and they are everything they should be - and a bit more. Well done Vasily :bigthumb:
 
Jonno said:
Never had the need to go flat out ....but my tame test pilot has been up to 70mph on 84 volts so it'll be a bit faster than that :lol:

I've got 2 x 24fs and they are everything they should be - and a bit more. Well done Vasily :bigthumb:
Click to expand...

Glad to hear that, i know it will be worth the wait. I'm still in the parts acquisition phase anyway.

Did you lace your own wheel?
 
No I bought it second hand and unused complete with tyre
 
howard85may said:
I'm guessing the numbers are some sort of strand count*number of strands? If someone more knowledgeable could clear that up for us.
Click to expand...

From what I understand the numbers mean, for example:

58 * 323
58 is the number of paralleled wires
323 is the number of turns on the three consecutive coils that form a part of a phase, the aAa...bBb...cCc... patterns.

So that would be 58 wires in parallel doing 3 turns on the first coil, 2 turns on the second coil but this time in the other direction, then 3 turns on the last coil in the same direction as the first one. Then repeat this pattern.
 
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