Three-Winding Transformer Ratings: Specify Simultaneous Loading
A three-winding transformer needs more than o…
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Transformer Ratings at Nonstandard Frequency: What Must Be Rechecked?
Changing frequency changes volts-per-hertz an…
Read full articleFuture Load Growth: Capacity Margin versus Forecast Uncertainty
Capacity margin and forecast uncertainty are …
Read full articleTransformer Loading with Unbalanced Single-Phase Loads
A three-phase transformer carrying unbalanced…
Read full articleContinuous, Cyclic and Emergency Ratings: Read the Time Basis
Continuous, cyclic and emergency loading are …
Read full articleOne Large Transformer or Two Smaller Units: Electrical Trade-Offs
The one-large-versus-two-small decision is a …
Read full articleMotor Starting on Transformers: A Voltage-Dip Data Checklist
Motor-start voltage dip cannot be judged from…
Read full articleDemand Factor and Diversity Factor: Avoid Double-Discounting Transformer Loads
Load reductions are valid only when their def…
Read full articleTransformer kVA from a Load List: Where Power Factor Belongs
Transformer kVA should be calculated from the…
Read full articleElectromagnetic Design Handover from Transformer OEM to Core Manufacturer
Electromagnetic design handover should conver…
Read full articleCore Design for Bidirectional Power: Separate Power Direction from Excitation
Bidirectional power flow does not, by itself,…
Read full articleSplit-Winding Transformers: Core Design Inputs from Unequal Secondary Duties
Split-winding transformers can share a main m…
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