Been re-wiring HPS fixtures today and noticed that the new ballast kits don't come with a resistor for the capacitor. The schematic still calls for one, I bench tested one anyway to see if the lamp would fire, it did. Then after warm up I disconnected the fixture, then re-energized to ensure that it would 're-strike'. All is fine.
I am left wondering just what purpose this resistor serves. I feel like I should already know the answer to this. Never the less, I just want to figure this out, humiliation or not.
The fixtures are 400watt Holophanes, the capacitors are 56uF with typical three wire starters and 480v ballasts.
Electrical Planner for TVA.