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| Bargin from the scrapman |
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| Arbalist:
The formulae I read was 70uf per Kw (52uf per hp) and rated at least 1.2 x line voltage. It also needs to be continous duty type. My machine had a 3/4hp motor so I used a 300v 40uf capacitor after swapping the leads over from star to delta. The capacitor was quite large, maybe 150-170mm long and 32-35mm dia in a metal can. You only get up to 80% of the motors rated output but I never noticed any lack of power. Also not suitable for motors that need to start under load apparently. |
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