Joshua Cude wrote:
...I'm almost certain they were using 3-phase power on the input to the box. They write: "a control circuit having three-phase power input and single-phase output". And it's on the input that the power measurement is made, and so that's where it's relevant. That also forces a particular line to be used, and makes much higher power available, which may have been necessary for the glowing red experiment... What if they used 3 phase power to the control box, and a single phase to the resistors, but not as you write "forces a particular line to be used", but two. I mean two phase lines. The result is a single phase signal but with a significant higher voltage then using one single phase line and the neutral pole. Tension would be greater by factor 1.73. The current would also increase according to the Ohm law and would increase by factor 1.73. The power dissipated would increase by 1.73 x 1.73 = 2.66.
