Transcription of Sizing Transformers - Dongan
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Sizing Transformers - Dongan
122 Dongan Electric Manufacturing Companyhow to Determine Transformer kVA RatingsTransformer Load expressed in amperes:Select the appropriate kVA size from the selection charts listed on this page or by using the single phase or three phase Sizing formula listed below. Be sure to select a transformer kVA rating equal to or greater than the anticipated connected load. Single Phase kVA = Load Voltage x Load Amps kVA = Volt Amperes 1000 100 Three Phase kVA = Load Voltage x Load Amps x VA = kVA x 1000 1000 Transformer Load expressed in kVA:Select the appropriate size from the selection charts. Be sure to select a transformer kVA rating equal to or greater than the anticipated con-nected load. Transformer Load expressed in wattage:Convert wattage into a kVA rating by using the formula listed below. Or you may refer to the equipment nameplate to obtain the ampere re-quirements of the connected load.
kva 200v 208v 240v 380v 415v 480v 575v 600v 3 8.6 8.3 7.2 4.5 4.1 3.6 3.0 2.8 6 17.3 16.6 14.4 9.1 8.3 7.2 6.0 5.7 9 26.0 25.0 21.6 13.6 12.5 10.8 9.0 8.6 15 43.3 41.6 36.1 22.8 20.8 18.0 15.0 14.4 25 72 69 60 38.0 34.8 30.1 25.1 24.0 30 86 83 72 45.6 41.7 36.1 30.1 28.9 45 130 125 108 68 62 54 45.2 43.3 75 216 208 180 114 104 90 75 72 112.5 ...
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