@Ariovaldo

A summary here:

1. Inductance varies from 15H at lowest to 20H at highest value (maybe a little higher since it is instrument limilt). Let's assume a mean value of maybe 17.5H.
2. Tuned capacitance is 0.156uF
3. This translates to a tank circuit resonance of 1/(2*pi*sqrt(L*C) = 96.325Hz
4. Parametric excitation occurs at 4x the rotor speed while the tank resonance occurs at 2x the rotor speed
5. Hence the rotor is most likely running around 48Hz, or 2880rpm. Can you confirm this Ariovaldo? If not, e.g. the rotor is running at 24Hz (1440rpm), it means you are running the tank circuit at the second harmonic (which is less efficient) and should increase the capacitance by a factor of 4 to 0.624uF.
6. Secondary output oscillates at twice the primary frequency so should be around 2*96.325 = 193Hz, which is what you measured.

So it appears you are driving the machine correctly if you can confirm the motor runs at 2880rpm. If not, adjust your capacitance as stated in 5. above.

Let's take a look at the secondary load:

1. 60W light bulb. Each light bulb (assuming they are rated for 120V), will have a resistance of 240ohms and can carry a current of 0.5A.
2. 8x 60W light bulb in parallel is equivalent to a secondary load of 30 Ohms and should draw a current of 4A when fully lit.
3. From your measurement, eight bulbs only draw about 1.9amps, so about 0.25amps per bulb.

What you should try is to load the secondaries more (less resistance) by adding another 8 bulbs in parallel. This will decrease the secondary resistance to 15ohms and should bump the current up hopefully closer to 0.5A per bulb. The voltage may drop a little, but that's OK. At least you won't burn out any bulbs.

If you can get 16 bulbs to fully light, that would be 16x 60W is 960Watts.

Then let's see what the input power to the motor does. Try to confirm its RPMs as well.

PmgR
================================================
 Help stop the persecution of Falun Dafa in China!
 Stop organ harvesting from living people in China's labor camps
 http://www.faluninfo.net
 ================================================
 Falun Dafa, also known as Falun Gong, is an ancient Chinese
 self-cultivation practice, based on the principles of
 * Truthfulness * Compassion * Tolerance *
 Great for improvement of health and mental well-being!
 http://www.falundafa.org
 ================================================

I completed a mulit-dimensional interpolation table for SPICE simulation of the QEG inductance based the data generated by the FEMM analysis, and it seems to have passed it's sanity check.

The first image was created by stepping through the current and angle in SPICE as the FEMM analysis did, the y axis represent henries, and the x axis represents amps.  The second image is the reference from the FEMM analysis.
 

The QEG has an odd behavior of maintaining a somewhat constant current into resistive loads.  In simulation I have noticed that to get more power dissipated in a resistive load, I had to to increase the resistance of the load rather than decrease it. 

So, I would recommend putting bulbs in series rather than parallel and see what happens.

I will try, but I need install a spark gap across the phases to avoid sparks when I start the generator. Also I need to play a little bit more with the frequency ( capacitors X speed )


Cheers


Ariovaldo

Big update from James:

http://be-do.com/index.php/en/forum/qeg-news/366-morocco-qeg-build-general-progress-update-part-1#1533

Hi everyone! We've not had internet for the past couple of days since I promised an update. Here it is from Jamie:
 
 Morocco QEG Build – General Progress Update – Part 1                                           10-May-2014
 From: Jamie
 To: All our Amazing Supporters and Followers
 
 As I’m sure everyone is aware, we have had many engineers and technicians here in Morocco working on the QEG with us in the last 3 weeks. Of particular note are the guys from Germany and the German speaking countries, Holland, UK, Canada, and Slovenia. Thanks to these dedicated individuals for their time, effort, and support, spiritually as well as technically… And thanks also to all the amazing and selfless people who brought us parts for the QEG in their suitcases and carry-ons without regard for risk involved. All have contributed to this endeavor, and all are greatly appreciated!
 
 I must personally apologize to all for not publishing more material and more of my own comments on progress etc., to date. It has been a struggle to keep the build and the development process moving forward due mostly to difficulty sourcing parts here, and researching design questions. There has been little choice but to just keep working and try to catch up with your questions, comments and communication whenever internet/phone are available (which is only about 3% of the time in Aouchtam). The engineers and residents here have just made some improvements with the internet hardware, so we’re expecting communications to be a bit better now going forward. And hopefully this update will clear up most of the technical concerns and lack of documentation.
 
 I’m sure the question in everyone’s mind is: How close are we to overunity? Well, here in Morocco, we are very close, within about 200 Watts (800 Watts out for 1000 Watts in at this point in development). We have heard yesterday and today that (2) other groups have completed the basic QEG build, and have resonance. This is good news, since the more people we have working on the development, the faster we will reach our goal.
 
 In the last few days, several negative posts and comments have been circulating about what we are doing here. This is astonishing to us! Apparently some groups and individuals were expecting a completely finished product to be delivered into their hands, with nothing left to do. We have always said that as soon as we got the basic resonance from the machine, we would open source all the information we had, and that’s what we’ve done. The intent was to co-develop the machine in an open source platform, with input, comments, test data, solutions and suggestions shared transparently between all groups that have chosen to build the machine.
 
 Continuing in that spirit, here is a snapshot of our current status…
 As we’ve said before, after the mechanical build, it’s not too difficult to get the machine into resonance, since it is a variable frequency generator. We were instructed (by WITTS) to ’match’ the electrical resonance (‘tank’ circuit resonant frequency), with the mechanical resonance (self-resonant frequency of the steel core) which was stated to be around 400 Hz. It was also stated that type M21 steel should be used for the core (however, M21 has been obsolete for many years), and that type M19 could also be used, but the resonant frequency would be lower. It was stated that a ‘harmonic’ could be used, such as 200 Hz, and that would work also. We decided to look for a peak power point (fundamental resonant frequency) between 1733 RPM (116 Hz output frequency) and 3008 RPM (200 Hz output), as this seemed a reasonable speed range for the mechanical setup (Witts’ machine is running about 2450 RPM in the latest video).
 
 We arranged a test using small increments of capacitance (about 7 nF each) starting at the low RPM end (about 1733 RPM, with C of 332 nF). We did 45 iterations, in order of increasing frequency, with the input power fixed at 700 watts. The target was to plot output power against input power to try to develop a bell curve showing a peak resonant frequency. After 43 iterations, we went back to the first C/RPM value to verify it had not changed, and added one more iteration at an extra-low frequency (1727 Hz = 115Hz output frequency). We also did one shot with the input power fixed at 900 Watts (see attached tabbed spreadsheet “QEG Resonance Plot.xlsx”).
 
 As can be seen from the data, the expected trend did not really emerge from this test. The curve is quite flat (no curve) in the targeted speed range, and there is no obvious increase in power. The extreme low RPM end has the best power output and phase lock effect, which also seems to increase linearly as frequency is reduced. However this result doesn’t really fit with the mechanical setup (machine is running too slow) or with expectations from the WITTS instructions.   We are currently testing at 3000 RPM (200 Hz) and above, to determine whether or not there is a peak power point in this range (which seems too fast).
 
 It’s possible the 7nF steps we used were too large, but not likely that the peak resonant point would be that sharp. If we do not find a peak in the range of 200 Hz and above, we will assume that the exciter coil must be in place and operational to be able to find the ‘sweet spot’ in tuning the capacitors to the core resonance. We are determined to document and publish the technique necessary to do this ‘etheric’ tuning.
 
 We have also heard from others who have taken the WITTS classes, that an antenna of 20 to 50 feet in length, along with the earth ground(s), are important to bring energy in from the environment, and that the exciter coil can be connected in the primary circuit or the secondary circuit. We will try all possible combinations of these connections, and report our findings in Part 2 of this update.
 
 We are having some preliminary success with the exciter coil wired in series with the primary, at a nominal RPM/C value of 2700/140nF. The output is loaded with 6 100 Watt, 240V incandescent lamps, wired in series to provide a relatively light load, but allowing the output voltage to rise as high as 1440 volts (240 Volts X 6). While adjusting the rotor speed to provide about 500 Volts output, we have a small spark in the gap. We have been able to tickle the spark gap and keep a small arc going for several seconds at a time.
 
 We will continue with testing for a max resonance point in the speed range of 200 Hz and above, and also with examining exciter coil effects on power output. We will provide results and analysis of testing in Part 2 of this update, in a few days.
 
 We are very grateful to 3 of our UK guys who have provided a complete array of test equipment, delivered personally last night here in Morocco. This will be invaluable to us for ongoing development, and to publish readings and results.
 
 (Also attaching the update word document here and the QEG Resonance Plot excel spreadsheet.)
 
 Stay ‘tuned’ for more…
 Much Love and Light!
 Jamie

Big update from James:

http://be-do.com/index.php/en/forum/qeg-news/366-morocco-qeg-build-general-progress-update-part-1#1533

@MH
Never thought that you will be that anxious or quick to re-post such 'nonsense'. Maybe the fact that they are only 200W from O.U made you wet your pants? Well, just sit tight and wait. Hopefully you won't crap in your pants if and when they are able to achieve their goal.


cheers,
chrisC

ChrisC,

Thanks for the classy metaphors.

There are two docs that go with James' posting but I can't read them on my home computer.

However, here is comment from somewhere else about the documents:

MileHigh

That's why I advised you to sit tight and wait. For all I know, they may just be rather stupid to spend all their time and $ chasing after a wild goose and you can just be thankful that your esteemed ego continues to fly high. But then sh** may happen?
cheers,
chrisC

The QEG has an odd behavior of maintaining a somewhat constant current into resistive loads.  In simulation I have noticed that to get more power dissipated in a resistive load, I had to to increase the resistance of the load rather than decrease it. 

So, I would recommend putting bulbs in series rather than parallel and see what happens.

What Ariovaldo needs to do, depends on what Ariovaldo's current resistive load point is (Rc=30ohms in this case) compared to the optimum load point.

There is an optimum load resistance (Ropt) that will give maximum power out. If you go away from this Ropt in either direction (Rc larger or smaller than Ropt), it will decrease the output power.

30 ohms load is actually a pretty high resistance, so in my statement I am assuming that Ropt < 30ohms and that hence the bulb load in parallel should be increased.

The only way to find out for sure where his current operating point is located (Rc > Ropt or Rc < Ropt) is to try both changes: decreasing Rc (higher load, e.g. 12 or 16 bulbs in parallel) or increasing Rc (smaller load, e.g. 4 or 6 bulbs in parallel).

Ariovaldo, can you try both experiments?

Also please let us know what the resistance is of each of the primary and secondary coils. I expect each primary coil (AWG20) to be around 30ohms and each secondary (AWG16) around 1ohm.

PmgR
================================================
 Help stop the persecution of Falun Dafa in China!
 Stop organ harvesting from living people in China's labor camps
 http://www.faluninfo.net
 ================================================
 Falun Dafa, also known as Falun Gong, is an ancient Chinese
 self-cultivation practice, based on the principles of
 * Truthfulness * Compassion * Tolerance *
 Great for improvement of health and mental well-being!
 http://www.falundafa.org
 ================================================

ChrisC:  Did you notice that I gave some helpful suggestions about working with the light bulb load in the spirit of helping people understand their QEGs?

@MH
Yes I did notice but I somehow cannot fathom how and why you would even consider helping make this thing called the QEG work since it was very obvious to you not so long ago that this 'thing' cannot possibly work - it's against all known theory. Maybe I'm not good at understanding all these long long posts? Well, that said, I hope you can meaningfully contribute. Any good contribution is a good contribution. Thanks.
cheers,
chrisC