Caduceous testing
I strongly disagree about caduceous coil not generating more than is put in. I made caduceous based trafo few months back for experimental purposes. I used nanoperm core, and I used two sides for coils. One caduceous coil consisted of two 5 m long wires, 0.3 mm. I put 10 layers on both sides which I can individually connect together as I please. So 2 sides * 10 layers * 10 meters, 200 meters of caduceous wrapped coils. Some tests I made:
First took hot line from mains via 1 uF cap, I got about 80 mA which I put through a 40 W bulb. I got dim light. Then I started to use the toroid. Each caduceous leg made the bulb glow brighter. When I used 170 meters I got about 130 mA through, this confirms what Z said about caduceous coil being current amplifier. 170 meters of 0.3mm wire adds some resistance, so light should go dimmer, not brighter.
During this test core made no sound, because there were two fluxes going at the same time.
For second test I used this toroid as a trafo. 80 meters for primary and 80 meters for secondary, I interleaved the sides so I could get also displacement current.
Result was that again light was brighter on primary side and when I loaded secondary with 40 watt bulb the light on primary side went back to level as if there is no coil connected and I got light on secondary side about the same brightness.
Trafo theory says that you need one flux to create power in secondary, and secondary creates another flux when power is taken. Caduceous trafo used two fluxes for creating power on secondary, this should not be possible. When power was taken, current went down in primary as if there were no load used.
When you think about it, it should be obvious. Take normal coil, each turn goes to same direction. Put enough turns and self inductance becomes so high that no current gets through. So if neighboring turns are reversed as in caduceous coil, this self inductance adds up instead of cancel. Plain and simple.
Easiest way to reduce your electricity cost is to get high perm core, modern tech gives permeability of 1 million, wrap lots of thick wire caduceous style and put hot line through. I used core which had permeability of 80000, M-088 from magnetec.
Does anyone have any idea what is L of caduceous coil ? I quess it is close to zero, or negative.
I strongly disagree about caduceous coil not generating more than is put in. I made caduceous based trafo few months back for experimental purposes. I used nanoperm core, and I used two sides for coils. One caduceous coil consisted of two 5 m long wires, 0.3 mm. I put 10 layers on both sides which I can individually connect together as I please. So 2 sides * 10 layers * 10 meters, 200 meters of caduceous wrapped coils. Some tests I made:
First took hot line from mains via 1 uF cap, I got about 80 mA which I put through a 40 W bulb. I got dim light. Then I started to use the toroid. Each caduceous leg made the bulb glow brighter. When I used 170 meters I got about 130 mA through, this confirms what Z said about caduceous coil being current amplifier. 170 meters of 0.3mm wire adds some resistance, so light should go dimmer, not brighter.
During this test core made no sound, because there were two fluxes going at the same time.
For second test I used this toroid as a trafo. 80 meters for primary and 80 meters for secondary, I interleaved the sides so I could get also displacement current.
Result was that again light was brighter on primary side and when I loaded secondary with 40 watt bulb the light on primary side went back to level as if there is no coil connected and I got light on secondary side about the same brightness.
Trafo theory says that you need one flux to create power in secondary, and secondary creates another flux when power is taken. Caduceous trafo used two fluxes for creating power on secondary, this should not be possible. When power was taken, current went down in primary as if there were no load used.
When you think about it, it should be obvious. Take normal coil, each turn goes to same direction. Put enough turns and self inductance becomes so high that no current gets through. So if neighboring turns are reversed as in caduceous coil, this self inductance adds up instead of cancel. Plain and simple.
Easiest way to reduce your electricity cost is to get high perm core, modern tech gives permeability of 1 million, wrap lots of thick wire caduceous style and put hot line through. I used core which had permeability of 80000, M-088 from magnetec.
Does anyone have any idea what is L of caduceous coil ? I quess it is close to zero, or negative.
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