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Author Topic: Reactive Current - Parallel RCL  (Read 18495 times)

Offline forest

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Re: Reactive Current - Parallel RCL
« Reply #255 on: September 06, 2021, 11:43:12 PM »
This thread started interesting but ended with garbage. It's sad. Reactive energy rise can be converted into real power when there is a source of additional energy.

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Re: Reactive Current - Parallel RCL
« Reply #255 on: September 06, 2021, 11:43:12 PM »

Offline nix85

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Re: Reactive Current - Parallel RCL
« Reply #256 on: September 07, 2021, 10:14:52 AM »
It is only sad how ironic is the garbage you wrote. Firstly, you totally missed the point and mixed apples and oranges.

I just pointed out that, unlike the common claim, in ZVS circuit we have example of POWER amplification in LC tank, not just voltage or current at the expense of the other, reactive power rises many times the input.

I said NOTHING about conversion of that power into real power, obviously, in ZVS and all conventional devices adding a load increases the real input.

In a conventional transformer which can be plugged into wall 24/7 max current flows through the primary, it is essentially a short circuit, but IV are almost 90° outta phase, no real work is done. Putting a load on the secondary brings IV in the primary into phase and now real work is done.

In ZVS in which input is DC load makes current draw to increase.

There is much that could be said about reactive power and ambient energy but no need to go into that, much has been said on this and other forums already.

Offline nix85

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Re: Reactive Current - Parallel RCL
« Reply #257 on: September 14, 2021, 05:30:10 PM »
Little correction, when transformer is plugged into the wall with no load not max current flows in the primary but exciting current which is current needed to establish the flux in the core + current to compensate for eddy and hysteresis core losses. This current is reactive power. Load on the secondary (in wrongly made underunity transformers) causes the primary current to increase and IV phase shift to decrease.

Free Energy | searching for free energy and discussing free energy

Re: Reactive Current - Parallel RCL
« Reply #257 on: September 14, 2021, 05:30:10 PM »
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Offline hermesatar

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Re: Reactive Current - Parallel RCL
« Reply #258 on: September 14, 2021, 08:32:05 PM »
"When resonance occurs in a parallel RLC circuit, a local current circulates between the inductor and the capacitor. This current can be very high, while the circuit current as seen from the source can be low. This phenomenon is used in induction heaters (in the industry for heating metals when necessary, e.g., heating bearings for mounting or dismounting) and in induction cookers (for domestic use).[/size]In such an application a high current is flowing through an inductor, whereas the current provided by the power line is small. This means that the rating of the wires and breakers are much smaller than the current in the inductor."
https://electricalacademia.com/basic-electrical/resonance-series-parallel-rlc-circuit/

Is there any truth in the above statement? Or do every induction heater have a transformer? high voltage/low current primary low voltage/high current secondary? If you use a transformer instead of an inductor can you tap the current from the secondary without increasing the output power from the frequency generator?
Best Wishes, Hermes

Offline forest

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Re: Reactive Current - Parallel RCL
« Reply #259 on: September 14, 2021, 09:44:28 PM »
My tests proved you can have kind of "overunity" by matching the inductance of primary side of transformer with resonant capacitor, but with ordinary transformer it is only apparent "overunity" - you lower this reactive idle current related to iron core hysteresis looses.

Free Energy | searching for free energy and discussing free energy

Re: Reactive Current - Parallel RCL
« Reply #259 on: September 14, 2021, 09:44:28 PM »
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Offline nix85

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Re: Reactive Current - Parallel RCL
« Reply #260 on: September 15, 2021, 07:16:57 PM »
You said "Reactive energy rise can be converted into real power when there is a source of additional energy." which is wrong cause there are many who used reactive power to do real work. Now you say it is possible but not with ordinary transformer. Well, according to some who did it you do NOT need a special transformer.

Some claim REAL overunity in ordinary transformer just by making primary and secondary resonant (with caps) and then putting the output through another same but non-resonant (no caps) transformer.

There is also Flynn method using magnets to divert lenz and many variations of.

Then there is ferroresonance which is usually a loss, has been a big word in OU community for 30+ years and many had apparently moderate to great success with it.

Remember Don Smith's small transformer which allegedly output about 10kW with 12W input for hours during Tesla tech lecture in 1996. Notice NST is connected to a winding which goes around whole transformer and output is taken from two windings which appear to be normal wound. He clearly says he is using ferroresonance in earlier lecture.

https://www.youtube.com/watch?v=mHhfNjPk7o4

Then we have this example of ferroresonant transformer outputting 100+ Watt from ~10W input Stivep shared. Inventor is using two frequencies, i think 50 and 150KHz.

https://www.youtube.com/watch?v=gbeseiPPCeM

There is also this guy who pumps 2.34kW of reactive power in a big transformer with 105W real input. This should NOT happen according to convention. There is no ZVS here, only passive components, current amplification should produce voltage decrease and vice versa. Yet here we have 130V at 18A.

https://www.youtube.com/watch?v=BVgp-gOBqsg

Etc

Offline nix85

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Re: Reactive Current - Parallel RCL
« Reply #261 on: September 15, 2021, 08:03:49 PM »
The biggest question remains what is with conventional claim that RLC tank cannot amplify power, only voltage or current at the expense of the other, yet i see more and more evidence to the contrary.

Think about it, let's take parallel RLC, let's say Q is 30 and we get x30 current amplification in the tank. According to mainstream voltage in the tank is supposed to go down to 1/30. Hm. How. Half of the time all the energy is in form of electric field in the cap, yet voltage is supposed to be 1/30. Makes zero sense. We got that big x30 current stored in the form of a magnetic field and yet when all this energy is poured into the cap it's voltage is superlow. Remember energy in the cap is CV²/2 and energy stored in an inductor LI²/2. If current is big and voltage low how in the world are they supposed to be equal. So this does not add up. Another thing, parallel RLC at resonance has great impedance, theoretically infinite, HOW could it provide resistance to the driving circuit if it's VOLTAGE was not at least equal to it. Obviously if it was any less, it would not be as an open circuit, yet it is, cause parallel RLC is a band stop filter.

I am waiting for my new multimeter and pocket oscilloscope to arrive. This has to be checked.

 

Free Energy | searching for free energy and discussing free energy

Re: Reactive Current - Parallel RCL
« Reply #261 on: September 15, 2021, 08:03:49 PM »
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