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Post by ethan054 on Apr 15, 2020 18:43:25 GMT -5
Am I setting the racks up wrong? Right now it seems LW is calculating the racks for 208v @ single phase which isn't a thing. In the picture it is calculating as 3.17A per phase where it should be 1.83A per phase. It seems LW is not dividing by the square root of 3. It is just doing A=W/V to find the amps in the 3 phase ![]() circuit. Attachments:
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Post by johnmcsoft on Apr 24, 2020 18:40:32 GMT -5
You have to set the voltage for the racks to exactly 208v. If you do that, Lightwright will calculate it correctly using Rich Cadena's formulas (which are not dividing by the square root of 3 or A-W/V). And as always, be sure you're using the most recent available version of Lightwright available.
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Post by ethan054 on May 11, 2020 14:38:12 GMT -5
You have to set the voltage for the racks to exactly 208v. If you do that, Lightwright will calculate it correctly using Rich Cadena's formulas (which are not dividing by the square root of 3 or A-W/V). And as always, be sure you're using the most recent available version of Lightwright available. The racks are set to 208v and I am on the most current version of LW. In the screenshot I attached in first post I get 3.17A. LW is calculating it as single phase, it is doing Watts÷Volts=Amps (( 660÷208=3.17). Candenas formula for Three-Phase Power Calculation is Amps=watts÷volts÷PF÷√3 which my LW is not doing. |
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Post by johnmcsoft on May 13, 2020 8:51:05 GMT -5
Please file a bug report/question at www.mckernon.com, be sure to include the .lw6 file and your screenshot. |
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