Keppe is headed to the big show, First exotic product to market

[ramset]

TinMan
Oh I think we can get you one sooner then That..........

Their entire marketing approach and reason for manufacturing is based on "Exotic technology"
capable of doing the seemingly impossibe.

They absolutely most step up to the plate if they are to be taken seriously,as Sterling says the first run of 100,000 pieces is a hugh commitment that adds credibility to Keppe's claim.

It is also a hugh Liability if not properly Vetted..........
thx
Chet

[conradelektro]

The only thing they really want to sell is the ridiculous "advanced fan manufacturing manual". After many clicks and "agreements" your will find that it only costs $75.--

http://www.keppemotor.com/en/storemanualfan.php

http://www.keppemotor.com/en/keppemotorstore.php

I ordered 10 of these manuals and will start my own fan business. I am not doing it for the money, just for world peace and enlightenment. I also want to save the 300 metre long sweet water whales which frolic in the Austrian mountain lakes.

Greetings, Conrad

[lancaIV]

http://www.keppemotor.com/en/3-3.php
an example for measuring.


Sincerely
              CdL

[Farmhand]

http://www.keppemotor.com/en/3-3.php
an example for measuring.


Sincerely
              CdL

Hi lancaIV, The only flaw I can see in that measurement and test protocol is that the inverter will not allow any reactive power back to the supply, the battery. The inverter also has overhead losses which are accounted for going by the 10% figure adjustment. However if the fan has a power factor of 0.90 when plugged into the wall some energy is returned to the supply when plugged into the wall, then if used from an inverter the energy is lost rather than returned to the supply. The power factor of the unmodified fan must also be considered which would be a complicated calculation considering time extensions on top of more time extensions kind of thing.

Maybe one of the Engineers could chime in here.

Anyway most of us only care about the over 100% efficiency claims. Does the Keppe motor produce more work than it costs to run it ?

Cheers 

[ramset]

Farmhand
Here is one quick analysis from One Of "OUR" Fiends.

Quote
A really bad protocol. Depending on the inverter used and how deeply it was loaded compared to it's rating, the inverter could have been highly inefficient compared to the load, 50% or more. e.g. If the inverter draws 2 amps at idle and we attach a 2 amp load, the 4 plus amps that will be drawn pits 50% inverter loss and 50% delivered to the AC fan motor.

If you absolutely had to have inverters, they should have been applied to both batteries, and one output could have been rectified. But this is an all around bad way to compare things in this day and age of cheap elapsed killowatt meters with power factor correction.

Also comparing a really cheap AC induction motor to a DC motor is not comparing apples to oranges. They need to test against a good DC motor and eliminate the inverter.

So no need for batteries or inverters, an elapsed killowatt meter will separate the men from the boys.

Possibly a rigged race. Real tests for motors provide torque/speed/power family of curves which are standard in the industry.

Graph attached.
End Quote......