Transcription of USEFUL ELECTRICAL FORMULAS - es-cat.com
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USEFUL ELECTRICAL FORMULAS - es-cat.com
USEFUL ELECTRICAL FORMULAS . TO OBTAIN Single Phase* Three Phase*. kV A/kW AMPERAGE CHART 80% POWER FACTOR. Kilowatts v x I x PF x v x I x PF. kV A kW 208V 220V 240V 380V 400V 440V 450V 480V 600V 2400V 3300V 4160V 1000 1000. 5 kVA vxI x v x I. 12 1000 1000. 10 33 12 Horsepower required when 15 52 45 18 generator kW is known kW kW. (if generator efficiency is x Efficiency (Generator) x Efficiency (Generator). 25 20 66 24 6 25 87 48 30 unknown use ). 30 104 99 36 kW input when motor HP is hp x hp x 50 40 139 132 120 77 73 65 60 48 7 known (if motor efficiency is Efficiency (Motor) Efficiency (Motor). 50 173 165 152 96 91 83 81 76 61 unknown use x HP).
kv•a/kw amperage chart 80% power factor kv•a kw 208v 220v 240v 380v 400v 440v 450v 480v 600v 2400v 3300v 4160v 6.3 5 17.5 16.5 15.2 9.6 9.1 8.3 8.1 7.6 6.1 – – –
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