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Unformatted text preview: Three-phase transformer bank rated 2400-440. Motor is 60 HP operating at rated power, 440 v, and 0.82 lagging power factor with efficiency of 0.92 a. Draw and label the system: d. For open delta or "V" operation, each transformer is rated to supply the total three-phase load over the square root of three: S phase I line V s ⋅ = S V S in 3 = or S V 34.255KVA = S phase 34.255KVA = So we would probably have to choose at least a 37.5 KVA transformer for each phase...
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This note was uploaded on 03/26/2012 for the course ECET 231 taught by Professor Piller during the Spring '12 term at Purdue.
- Spring '12