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« on: November 01, 2006, 02:53:11 AM »
dont want to start ww3 here but am needing 3 phase for epuip and have to convert or generate as the local utility would want the 4th mortgage. have worked with it for years but all i knew was 3 hot legs is 3 phase. well good and true but i got more interested when i got a lathe w/ a 2 speed motor 3 phase of course. the big Q is rotary vs static. i understand to much to get into trouble bet not enough to help out. this is it correct me if i have not understood correctly. here goes. from the static converters so far that i have have seen (motor start relay) and a couple caps and such you de rate your load 1/3 giving you 4 hp from a 6 hp motor. with rotary you use a 3phase motor higher in hp + caps than your load. the prob here is that you are generating a 3rd leg witch has to stay in phase with what you started with. i do understand that a 3 phase motor is basic 3 motors in one. the catch is with any 3 phase converted or not if the voltage differs the motor life is directly realted. ,got all the goods just didnt want to run any chitlins out the drive ways on beggers wein. the girl friend wanted piece in the hood i told her this is the "BLUE SMOKE TEST" she said u better...... got to if there is a better im shure yual will post the 7.5 hp is US 1740 9wire from best guess 69-72 the lathe is zubal 70-75 tks all