conmgt
Senior Member
- Location
- 2 Phase Philly
I've been asked to install an Italian CNC lathe for a customer who makes custom baseball bats.
The spec sheet says "34.81Kw - 400V - 50Hz - 71.1A"
In my quick conversion to 208V I'm going simply with the 34.81Kw and coming up with 96.6A on my ElectriCalc which is much less than my guess of it being twice the 71A since 208 is about 1/2 of 400V.
If I try 34.81Kw at 400V I get 50A on my ElectriCalc. 400V, 71.1A gets me 49.25Kw and 49.25Kw at 208V gets me 136.7A...closer to my guess.
I asked the US rep for this machine what the power requirements would be and he said that it would still be the 71.1A ???? He said he would be putting in a transformer to allow an input of 208V and that the A wouldn't change.
What effect on calcs does the 50Hz have?
The spec sheet says "34.81Kw - 400V - 50Hz - 71.1A"
In my quick conversion to 208V I'm going simply with the 34.81Kw and coming up with 96.6A on my ElectriCalc which is much less than my guess of it being twice the 71A since 208 is about 1/2 of 400V.
If I try 34.81Kw at 400V I get 50A on my ElectriCalc. 400V, 71.1A gets me 49.25Kw and 49.25Kw at 208V gets me 136.7A...closer to my guess.
I asked the US rep for this machine what the power requirements would be and he said that it would still be the 71.1A ???? He said he would be putting in a transformer to allow an input of 208V and that the A wouldn't change.
What effect on calcs does the 50Hz have?