Thnx...Since all the stages are same, the voltage shall be equally divided across all the components. so each stage has to handle a max of 5000v. and this being an impulse voltage divider, do the resistors be of that higher rating??... This is case of design of divider n rectifier for Impuse generator(personal theoritical project)The resistors need to be able to handle P = charge voltage * current, since the caps will start out looking like short circuits when they're un-charged. Current will be 5000V / 20000 ohms = .25A. .25A * 5000V = 1250W (!). Theoretically, only the first stage's resistors need to be that big, since the successive stages are in series, and will see less current...on the other hand, taking chances at 5000V (let alone 400000) is a good way to end up with fire, explosion, death, etc.
What's your insulation plan?
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