Reactive power - Reactive Generator research from GotoLuc - discussion thread

[poynt99]

In short, what it amounts to is this:

The input circuit is of high voltage and low current (hence little to no illumination of the series input bulb), and the output circuit is low voltage and high current, hence the output bulb lights.

And if one was to take the time and effort to measure the source power and the power in the output bulb, they would see UU.

[poynt99]

And a related explanation from my 8 page document I did up for Luc from July 2009:

The Rbulb [input bulb] intensity (or heat) can not be used reliably to indicate the total amount of power used by the entire circuit! (as confirmed by the results above). IF the bulb is the ONLY element in the circuit, i.e. it is placed across the power source alone, then YES it will indicate directly how much total power is being taken from the power supply by the "circuit", but the circuit in this case only consists of the bulb, the battery, and the connecting wires.

When there are other components in the circuit (such as resistors and coils) and the bulb is in series with them and the power supply, the bulb's intensity is only indicative of the power being dissipated in the bulb itself. It does not indicate how much total power is being taken from the power supply and being used in the whole circuit.

Actually what the bulb intensity DOES indicate is the RMS CURRENT (and only current) from the supply (ask me about this if you do not understand how or why). But as I mentioned before, current is only one half of the power equation, and without taking power supply RMS VOLTAGE into account, you can not know how much total RMS POWER is being taken from the supply and being used in the circuit.

This effect CAN and HAS been simulated.

[tinman]

In short, what it amounts to is this:

The input circuit is of high voltage and low current (hence little to no illumination of the series input bulb), and the output circuit is low voltage and high current, hence the output bulb lights.

And if one was to take the time and effort to measure the source power and the power in the output bulb, they would see UU.

My point exactly Darren. This was in relation to Tim's comment-
Quote:  My experience doesn't agree with this... Bulbs show any real power...

I've found I can run an incandescent bulb on the output of a car ignition coil (maybe 5000v, 1000Hz) at 40w, or an MOT (2000v ish), and it's exactly as bright as it is with 40w mains (at 240v AC, 50Hz). Just the same...

As in the scematic i posted,and an actual build of the setup-bulbs dont give an indication of real power being consumed in some setup's.

If current is  a flow of electric charge,then this would mean we have a higher electric charge flowing through G2 than that of G1. This charge is carried by moving electron's,so dose this mean we have a higher electron flow through G2,than that of G1?.

[picowatt]

To poynt99 or anyone who wants to take a go at it

I have a toroid which I wound myself in Bifilar on a Ferroxcube toroid core. It is under test connected to a sine wave output of my SG set at 4.33 Mhz.

My 200Mhz DSO scope is set to DC Coupling and I'm using my non Inductive 2 inch long nichrome wire which I adjusted to 0.1 Ohm. Both scope probes are connected in the standard way to measure power. Ch 1 is voltage and Ch 2 is current.

It seems from the scope math that 3.8W is being returned. I have attached both Non Inverted and Inverted of Ch 2 scope shots so not to have another debate on that matter and also many samples of each versions.

I have checked my DSO scope against Thane's Tektronic before returning it to him just to make sure it was accurate and found mine to be better as far as comparing math data between Ch 2 inverting or not. So I don't think this is a scope error.

Let me know what you think

Luc

Luc,

This online calculator yields 40nH for a 2" length of .05" diameter copper wire and a whopping 1440nH for the same length/diameter of nickel wire.

http://chemandy.com/calculators/round-wire-inductance-calculator.htm

As your nichrome is a nickel chromium alloy, the inductance is likely different than that of a pure nickel wire, but it is very likely that your 2" of nichrome wire has a much higher inductance than the 40nH of a 2" copper wire.

PW

[Farmhand]

It depends on the bulbs and the circuit particulars.  I agree with Poynt99.

Cheers