COP 20.00 (2000%) Times, Reactive Power Energy Source Generator,

[listener191]

Hi Stefan,

Also in the conference presentation video at time:1.06.18 , Babcock says " we use the transformer to duplicate the output of a generator". This indicates the SERP,s switching is after the transformer.

Regards

Barry

[listener191]

All,

Re the presentation video time 1.50.08 to 1.50.38. Babcock specifically states 1W out of the transformer for 52W into the load. Just confirming again that the switching is after the secondary of the transformer.

Sorry for belaboring this point in the last few posts, but schemes that are not in alignment with what we know about the SERPS demonstration setup, will not yield the results that Babcock & Murray have obtained.

The SERPS concept by their own admission is not patentable, so the only patent they could apply for, would be a specific circuit configuration and why would they give that away!
I think they have provided enough for replication by experimentation.

Barry

[Jdo300]

This is a good point to look into various ways to do AC energy recovery. The following simulation shows an example of how to do this using the series/parallel cap switching version. The load is left out for now for simplicity.

$ 1 4.9999999999999996E-6 9.001713130052181 31 5.0 50
v 288 176 288 48 0 1 60.0 177.0 0.0 0.0 0.5
T 352 80 448 144 0 0.1 1.0 11.68220520430725 -15.210861419364894 0.9999
w 288 48 352 48 0
w 352 48 352 80 0
w 352 144 352 176 0
w 448 80 448 48 0
w 448 48 512 48 0
w 448 144 448 176 0
r 288 176 352 176 0 1.0
R 352 304 288 304 1 2 120.0 2.5 2.5 3.141592653589793 0.13
p 448 144 448 80 0
g 448 176 448 192 0
l 448 176 608 176 0 0.0032335 -15.21086141936489
R 352 224 288 224 1 2 120.0 2.5 2.5 0.0 0.42
x 176 232 255 238 0 24 Charge
x 148 311 256 317 0 24 Discharge
w 640 320 464 320 0
L 352 384 288 384 0 1 false 5.0 0.0
w 464 240 528 240 0
w 352 384 352 336 0
w 352 256 352 336 0
w 464 272 464 384 0
I 480 272 528 272 0 0.5
x 121 394 265 400 0 24 Switching EN
w 464 384 352 384 0
w 624 144 624 256 0
w 624 256 720 256 0
w 688 80 720 80 0
w 640 128 640 320 0
w 720 256 720 80 0
w 608 48 672 48 0
w 608 176 672 176 0
159 608 176 608 112 0 0.1 1.0E10
159 672 112 672 48 0 0.1 1.0E10
159 608 112 672 112 0 0.1 1.0E10
c 672 112 672 176 0 6.8E-5 85.31942656795593
c 608 48 608 112 0 6.8E-5 85.31942656795593
w 608 48 512 48 0
152 528 256 624 256 0 2 5.0
150 352 240 464 240 0 2 5.0
150 352 320 464 320 0 2 0.0
w 464 272 480 272 0
o 5 16 0 35 299.3155353253689 47.89048565205903 0 -1
o 13 16 0 35 5.0 9.765625E-5 0 -1
o 9 16 0 35 5.0 9.765625E-5 0 -1
o 0 16 0 35 299.3155353253689 23.945242826029514 1 -1
o 0 16 1 291 4789.048565205902 9.765625E-55 2 -1

This next example includes a load resistor connected directly in series with the tank circuit. Notice how the current waveforms change. and how the energy recovery is affected.

$ 1 4.9999999999999996E-6 13.097415321081861 31 5.0 50
v 272 192 272 64 0 1 60.0 177.0 0.0 0.0 0.5
T 336 96 432 160 0 0.1 1.0 3.7384976990607903 -5.391754900088215 0.9999
w 272 64 336 64 0
w 336 64 336 96 0
w 336 160 336 192 0
w 432 96 432 64 0
w 432 160 432 192 0
r 272 192 336 192 0 1.0
R 336 320 272 320 1 2 120.0 2.5 2.5 3.141592653589793 0.13
p 432 160 432 96 0
g 432 192 432 208 0
l 432 192 592 192 0 0.0032335 -5.391754900088115
R 336 240 272 240 1 2 120.0 2.5 2.5 0.0 0.42
x 160 248 239 254 0 24 Charge
x 132 327 240 333 0 24 Discharge
w 624 336 448 336 0
L 336 400 272 400 0 1 false 5.0 0.0
w 448 256 512 256 0
w 336 400 336 352 0
w 336 272 336 352 0
w 448 288 448 400 0
I 464 288 512 288 0 0.5
x 105 410 249 416 0 24 Switching EN
w 448 400 336 400 0
w 608 160 608 272 0
w 608 272 704 272 0
w 672 96 704 96 0
w 624 144 624 336 0
w 704 272 704 96 0
w 592 64 656 64 0
w 592 192 656 192 0
159 592 192 592 128 0 0.1 1.0E10
159 656 128 656 64 0 0.1 1.0E10
159 592 128 656 128 0 0.1 1.0E10
c 656 128 656 192 0 6.8E-5 33.30028999979963
c 592 64 592 128 0 6.8E-5 33.30028999979963
152 512 272 608 272 0 2 5.0
150 336 256 448 256 0 2 5.0
150 336 336 448 336 0 2 0.0
w 448 288 464 288 0
r 432 64 592 64 0 24.0
o 5 16 0 35 299.3155353253689 5.986310706507378 0 -1
o 12 16 0 35 5.0 9.765625E-5 0 -1
o 8 16 0 35 5.0 9.765625E-5 0 -1
o 0 16 0 35 299.3155353253689 11.972621413014757 1 -1
o 0 16 1 291 2394.524282602951 9.765625E-55 2 -1
o 40 64 1 35 1280.0 9.765625E-5 3 -1

Now, applyling the same load to the tank circuit through a tuned transformer, see how the currents change again.

$ 1 4.9999999999999996E-6 16.13108636308289 31 5.0 50
v 320 240 320 112 0 1 60.0 177.0 0.0 0.0 0.5
T 384 144 480 208 0 0.1 1.0 -14.75058551194672 15.046711170205125 0.9999
w 320 112 384 112 0
w 384 112 384 144 0
w 384 208 384 240 0
w 480 144 480 112 0
w 480 208 480 240 0
r 320 240 384 240 0 1.0
R 384 368 320 368 1 2 120.0 2.5 2.5 3.141592653589793 0.13
p 480 208 480 144 0
g 480 240 480 256 0
R 384 288 320 288 1 2 120.0 2.5 2.5 0.0 0.42
x 208 296 287 302 0 24 Charge
x 180 375 288 381 0 24 Discharge
w 672 384 496 384 0
L 384 448 320 448 0 1 false 5.0 0.0
w 496 304 560 304 0
w 384 448 384 400 0
w 384 320 384 400 0
w 496 336 496 448 0
I 512 336 560 336 0 0.5
x 153 458 297 464 0 24 Switching EN
w 496 448 384 448 0
w 656 208 656 320 0
w 656 320 752 320 0
w 720 144 752 144 0
w 672 192 672 384 0
w 752 320 752 144 0
w 640 112 704 112 0
w 640 240 704 240 0
159 640 240 640 176 0 0.1 1.0E10
159 704 176 704 112 0 0.1 1.0E10
159 640 176 704 176 0 0.1 1.0E10
c 704 176 704 240 0 6.8E-5 159.3874182125484
c 640 112 640 176 0 6.8E-5 159.38741821253723
152 560 320 656 320 0 2 0.0
150 384 304 496 304 0 2 0.0
150 384 384 496 384 0 2 5.0
w 496 336 512 336 0
r 720 16 720 80 0 24.0
T 640 16 720 80 0 0.0032335 1.0 -15.046711170205052 5.235301061927402 0.999
w 640 80 640 112 0
w 640 16 480 16 0
w 480 16 480 112 0
w 480 240 640 240 0
o 5 16 0 35 299.3155353253689 23.945242826029514 0 -1
o 11 16 0 35 5.0 9.765625E-5 0 -1
o 8 16 0 35 5.0 9.765625E-5 0 -1
o 0 16 0 35 299.3155353253689 47.89048565205903 1 -1
o 0 16 1 291 4789.048565205902 9.765625E-55 2 -1
o 39 64 1 35 2560.0 9.765625E-5 3 -1

Note that although the current waveforms look the same as before when no load was connected, the amplitude of the return spike is now half as tall as it was before.

Just more food for thought.

- Jason O

[hartiberlin]

Hi Barry , I think Babcock meant the Variac with it...
Maybe they are just not using anymore a Variac but a normal transformer at the input...

Also you can see in the free Serps video that they have 3 x2 wires going to their switching board ,
so they are using 3 Electronic switches to switch the caps.
A different configuration is not possible to get these negative current pulses back to the grid...

Regards , Stefan.
P.S. there is an additional open core transformer probably in Series with L1 or L2 to
Setup and tune to the 60 Hz resonance frequency by changing the inductance
by pulling out the coil a bit out of the core , so it works like a tuneable choke...

[Jdo300]

Here's a simulation that combines Simulations 1 and 3 from the previous post to make the waveform comparisons easier. Simple switch the SPDT switch back and forth to compare performance.

$ 1 4.9999999999999996E-6 16.13108636308289 31 5.0 50
v 288 240 288 112 0 1 60.0 177.0 0.0 0.0 0.5
T 352 144 448 208 0 0.1 1.0 -11.027533271887975 13.73770587487674 0.9999
w 288 112 352 112 0
w 352 112 352 144 0
w 352 208 352 240 0
w 448 144 448 112 0
w 448 208 448 240 0
r 288 240 352 240 0 1.0
R 352 368 288 368 1 2 120.0 2.5 2.5 3.141592653589793 0.13
p 448 208 448 144 0
g 448 240 448 256 0
R 352 288 288 288 1 2 120.0 2.5 2.5 0.0 0.42
x 176 296 255 302 0 24 Charge
x 148 375 256 381 0 24 Discharge
w 640 384 464 384 0
L 352 448 288 448 0 1 false 5.0 0.0
w 464 304 528 304 0
w 352 448 352 400 0
w 352 320 352 400 0
w 464 336 464 448 0
I 480 336 528 336 0 0.5
x 121 458 265 464 0 24 Switching EN
w 464 448 352 448 0
w 624 208 624 320 0
w 624 320 720 320 0
w 688 144 720 144 0
w 640 192 640 384 0
w 720 320 720 144 0
w 608 112 672 112 0
w 608 240 672 240 0
159 608 240 608 176 0 0.1 1.0E10
159 672 176 672 112 0 0.1 1.0E10
159 608 176 672 176 0 0.1 1.0E10
c 672 176 672 240 0 6.8E-5 -162.95598681315968
c 608 112 608 176 0 6.8E-5 -162.9559868131597
152 528 320 624 320 0 2 5.0
150 352 304 464 304 0 2 5.0
150 352 384 464 384 0 2 0.0
w 464 336 480 336 0
r 688 16 688 80 0 24.0
T 608 16 688 80 0 0.0032335 1.0 1.7763568394002505E-14 -1.7763568394002505E-14 0.999
w 608 80 608 112 0
w 608 16 432 16 0
w 448 240 608 240 0
S 448 112 448 48 0 1 false 0
w 432 16 432 48 0
w 608 48 608 80 0
l 464 48 608 48 0 0.0032335 -13.737705874876742
o 5 16 0 35 598.6310706507378 47.89048565205903 0 -1
o 11 16 0 35 5.0 9.765625E-5 0 -1
o 8 16 0 35 5.0 9.765625E-5 0 -1
o 0 16 0 35 299.3155353253689 47.89048565205903 1 -1
o 0 16 1 291 4789.048565205902 9.765625E-55 2 -1
o 39 64 1 35 7.62939453125E-5 9.765625E-5 3 -1

Note that the circuit, waveform wise, treats a loaded transformer as an inductor with a voltage source in series. Hence the waveforms look the same as a normal inductor (reactive), but with reduced voltage due to reflected CEMF from the Load on the secondary. This can be reduced by reducing the coupling and allowing the tank circuit to build up more energy, or by changing the winding ratio, which has the same effect.

- Jason O