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#1
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here is what i have in my shop: 240v 20a small cnc mill 3 phase using a phase converter 50a arc welder 110v 16a drill press 15a cutoff saw 10a minilathe 7.5a bandsaw 3x5a 15a small tools 5a small aircomp ok, at my pole is a 75a breaker. think i have 100a service? house stuff: 240v 4a ?dryer its what is says? 23a AC it has a 40a breaker from my house to the shop i have 2 #8 and a smaller ground on a 30a breaker. i was poping a 15a with just my welder so i went to 30a. what i am looking for is do i have a enough at the pole to run my 10hp rotary phase converter or should i use a variable frequency drive. they are more efiecent? require less power? o complete green question. if somthng is rated like say my arc welder at 50a that is its max operation? granted i am not going to need to be running all the stuff in the shop at one time. thanks, :head spinning: |
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#2
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| Off the bat, I would say you are pushing it with a 100amp service, (make sure you are not cooking the roast when you are welding). I guess you had to change the 15amp welder breaker!!. If all you have on three phase is the mill spindle, then I would go with a VFD, plus you get to have a variable speed spindle, I see you have a Fanuc control so do you already have a spindle controller? What do you mean by 'a smaller ground on a 30a breaker'? Al.
__________________ CNC, Mechatronics Integration and Machine Design. “Logic will get you from A to B. Imagination will take you everywhere.” Albert E. |
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#3
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2 x 8g and a smaller g for the ground. i had the energy co come out and they said to get to par would be 1500 for 3 phase ran to my pole. more from there. think if my pole breakers are 75a i have 100a service? how can i check? will 8g from my house to my shop handle my a vfd? does a vfd use less amps to power my 4hp mill? do you double rate like a rpc because it ineficient? thanks for your help. alex |
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