basjak
Member
- Location
- Las Vegas, NV
Hello,
New to forum. 27 years and first time here. Hope someone can assist a bit.
We have an air compressor nameplate rating at : 60 HP, 45KV @ 230 volts, 3PH. "We" sized our wiring and disconnect and fusing per "our" calculations. I believe "we" made a mistake and or the equipment installer did not disclose the correct information to us at the beginning. We have 120/208 volts, 3PH. We installed buck/boost xfmrs to correct voltage issue, sized per xfrmr manufacturer specs. So my question(s) are these:
What should the calculated amperage be at the 208 volt line side of the disconnect, prior to the xfmrs?
What should the calculated amperage be at the 230 volt load side of the xfmrs?
We did the 45K/230V x .95PF to get 119 amps. The motor is pulling 140 to 150 amps at this location. We are getting 180 amps at the line side disconnect.
Thanks for your assistance, Andy
New to forum. 27 years and first time here. Hope someone can assist a bit.
We have an air compressor nameplate rating at : 60 HP, 45KV @ 230 volts, 3PH. "We" sized our wiring and disconnect and fusing per "our" calculations. I believe "we" made a mistake and or the equipment installer did not disclose the correct information to us at the beginning. We have 120/208 volts, 3PH. We installed buck/boost xfmrs to correct voltage issue, sized per xfrmr manufacturer specs. So my question(s) are these:
What should the calculated amperage be at the 208 volt line side of the disconnect, prior to the xfmrs?
What should the calculated amperage be at the 230 volt load side of the xfmrs?
We did the 45K/230V x .95PF to get 119 amps. The motor is pulling 140 to 150 amps at this location. We are getting 180 amps at the line side disconnect.
Thanks for your assistance, Andy