Quote from: NRamaswami on February 15, 2014, 12:33:34 PM

....
Both Primary and secondary had voltmeter and Ammeter connected separately to them. This why we are able to say what is the input voltage and amperage and what is the output voltage and amperage. Input voltage is 220 volts and 7 amps. Output is 630 volts and 20 amps. We need to put a step down transformer to see that the output is not peak output as it happens when we switch on or switch off but sustained output.

....

So if I understand you correctly, you used only one voltmeter and one ampermeter all the time, and did not use 2 voltmeters and two Ampermeters simultenously, right?   Two meters (a volt and an Amper) for the primary input and two meters for the secondary, used all four meters at the same time, this was not so?

Thanks for your answer.

Sorry for any miscommunication on my part..

We had two volt meter and two Ammeters..

One voltmeter and one Ammeter for primary

Another voltmeter and another ammeter for secondary.

Hope this clarifies your doubts..Bye for this week.

Okay, thanks for the answer.

Please check with a digital Ohm meter the inner resistance of your Ampermeter set to the 20-30 Amper measurement range, I think you would measure under or around 1 Ohm values or so, and this value is with which you shorted the secondary when you saw the 20 Amper.  And I believe the 1 Ohm or less resistance is already a very nearly short circuit for a 600V secondary coil.

Thanks, Gyula

Hi:

1. That Ammeter is an analog ammeter and we cannot set it to 20 to 30 amps range.

2. That has already burnt out and we will use a different one.

3. We did not short the secondary. It was kept open. Your assumption is wrong here. That is why we say under no load conditions.

4. We will check the ohms of the Ammeter next time. You may well be right but as I said we have to use a step down transformer and see the voltage and amperage output and see the useful output. That part is pending as I have told you from the beginning. That said as the voltage goes up, the useful amps also go up in the secondary. This is a fact we have recorded when we have tested other lower voltage versions.

This is why I say we need a significant primary input voltage and amperage combination. Minimum 20:1 ratio needed for secondary to work reasonably and higher we go better it becomes. However the amperage should also be reasonably well in the 5 to 10 amps range for any voltage for reasonable magnetism to be present to show effect on secondary. Figueras rotary device achieved high frequency it seems in addition to all this.in his modular approach. But I need to test and then only I can report..

You are quite correct in stating that resistance of the wire and the ammeter must be measured together to arrive at the amps. Volts= amps x resistance.. But this is AC and would the above equation apply..

We certainly did not measure the results this way. we have had up to 250 volts and had 2 amps useful power as we used to light 200 watts lamps. This is when the primary was not made an electromagnet but was used to power lamps. The incidental emf was what was used in the secondary to get 500 watts of useful power.  Higher the voltage, higher the amperage avaiilable in the secondary.

However when the primary is used as electromagnet, more power output comes as the voltage is higher. So when we had 630 volts we were under the impression that we had 20 amps. You can well be right that we cannot calculate it that way. The only solution is to rebuild the device and test and check the results with a step down transformer that can handle the high amperage current.

We will do it and report this to you all so all can benefit. Thanks for the understanding and support.