Nanjing Fardriver amp ratings

V

Vw2bugyou

1 mW
Joined
Dec 3, 2020
Messages
13
Location
Oregon
I'm probably going to order a fardriver for a Surron very soon. The listings shown for each model don't add up though....
I'd assume a 72v-150a rated controller could put out 10kw. Per the fardriver web page the ND72360 should be capable of what I need. Assuming 360 phase amps and 170 battery amps I should be able to push 12kw. That said, the listing for that particular controller states it pairs with a 2000-3000w motor.
I'm hoping to get a controller that'll be capable of 8-10kw continuous.
Does anyone know how to find the "continous" ratings for these controllers?
Also, has anyone successfully (or unsuccessfully) paired a Fardriver with a surron motor?
Tags; Sur-ron sur ron far driver
 

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Vw2bugyou said:
I'm probably going to order a fardriver for a Surron very soon. The listings shown for each model don't add up though....
I'd assume a 72v-150a rated controller could put out 10kw. Per the fardriver web page the ND72360 should be capable of what I need. Assuming 360 phase amps and 170 battery amps I should be able to push 12kw. That said, the listing for that particular controller states it pairs with a 2000-3000w motor.
I'm hoping to get a controller that'll be capable of 8-10kw continuous.
Does anyone know how to find the "continous" ratings for these controllers?
Also, has anyone successfully (or unsuccessfully) paired a Fardriver with a surron motor?
Tags; Sur-ron sur ron far driver
Click to expand...


Why Fardriver can I ask? I hear it does not have variable regen… 2000-3000w is the nominal rating for the motor they are suggesting for you to use, like a QS205. That controller can do 10kw PEAK no problem. They never really state continuous power, I doubt any of those controllers could do 8-10kw continuous neither can your bike. What kind of riding are you doing to need that much continuous power? You need the bigger ones like the Fardriver Controller ND841800 to do continuous power levels like that, but you would smoke your motor pretty quick I would imagine.
 
Watts and kW really are pretty useless as motor ratings, until you are doing hands - on testing for your specific system, terrain, loads and speeds.

https://ebikes.ca/learn/power-ratings.html

The controller should put out far less than the theoretical maximum of which the motor is capable.

Unless your system includes a reliable and adjustable derating function that starts limiting current as things get hot inside the motor.


 
Continous depends on how good you get the heat away from the controller.
I'm using a Sabvoton SVMC72150 (150A Battery 350A Phase) in my heavy scooter (around 170kg). The Sabvoton gives me up to 14kw peak and 10-12kw continous until it reaches his maximum temperature.
I have a 18W fan installed which kicks in over 50C on the heatsink, with this and the big aluminium sheet underneath the sabvoton, the controller can easily burn my 5kw or 8kw hub motor without overheating. My battery can give 10kw for over 40minutes.
In the next weeks I will upgrade to a Fardriver ND96850 , because the tourque from a standstill is to weak with only 350 Phase amps from the sabvoton.
The ND96850 will direct fit in the place where the sabvoton is mounted.

I would always go for the biggest controller you can fit. So you don't need to max it out.
The ND72530 and the ND72360 have the same size.

The ND961200 was to high to fit in my scooter shell.
I started my build with an SVMC72260 (260A Battery 550A Phase) giving me 18kw but it died during a no load test with activated Flux-Weakening.

ND96850 SVMC72150 SVMC72260
20220303_155900.jpg
 
dominik h said:
Continous depends on how good you get the heat away from the controller.
I'm using a Sabvoton SVMC72150 (150A Battery 350A Phase) in my heavy scooter (around 170kg). The Sabvoton gives me up to 14kw peak and 10-12kw continous until it reaches his maximum temperature.
I have a 18W fan installed which kicks in over 50C on the heatsink, with this and the big aluminium sheet underneath the sabvoton, the controller can easily burn my 5kw or 8kw hub motor without overheating. My battery can give 10kw for over 40minutes.
In the next weeks I will upgrade to a Fardriver ND96850 , because the tourque from a standstill is to weak with only 350 Phase amps from the sabvoton.
The ND96850 will direct fit in the place where the sabvoton is mounted.

I would always go for the biggest controller you can fit. So you don't need to max it out.
The ND72530 and the ND72360 have the same size.

The ND961200 was to high to fit in my scooter shell.
I started my build with an SVMC72260 (260A Battery 550A Phase) giving me 18kw but it died during a no load test with activated Flux-Weakening.

ND96850 SVMC72150 SVMC72260
20220303_155900.jpg
Click to expand...

You got a build thread? I want this controller as well. Do you know if it can regen all the way to down to zero mph? I know that sabvoton only regens down to about 3mph.
 
Build thread only in german and very long.
https://www.elektroroller-forum.de/viewtopic.php?f=21&t=11199

And I do not know if the Fardriver can do regen down to zero.
All I want from this is more power in the same size and more voltage headroom.
I killed also a SVMC72150 with overvoltage while testing with no load and with activated Flux-Weakening.
So I am not spending more money to Borg-Warner / Sabvoton for controllers which kill themselfs with no load.
 
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