Douglas W9IIX Johnson wrote:
putting together a 3200v ps, I am going to use chassis mount bleeder resistors
mounted on an aluminum plate (grounded) , will they handle the voltage OK
without arc over or would ceramic bleeders with standoffs be a safer bet?
...Doug, w9iix
There is an advantage to having an external bleeder resistor,
compared to a resistor across each capacitor, with a low value resistor
it serves as the "multiplier" for the (hV) Voltage panel meter.
The ribbed aluminum power resistors have little (just over 1 kV each)
voltage insulating properties, but are available with 2% tolerances.
They must (all except the one nearest to the ground connection) be
separately mounted on insulated plates or other insulated heat sinks.
Been there done that.
--
Ron - KA4INM
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