The nature of power-supply filtering makes it necessary for the power-transformer VA rating to significantly exceed the actual power in watts that the load consumes. A high-quality, rugged power ...

Electrical power ... through the transformer winding when a lightning induced voltage surge reaches the transformer. Exciting current is current drawn by the transformer under no load conditions. It ...

Power transformers are large capital items with long lead times for production; they are critical to our electric infrastructure, and their reliability is an important subject for analysis.

Most utility companies currently use static power transformer rating assumption, in many cases the nameplate ratings for long-term system planning.These assumptions can be overly conservative or ...

A transformer consists of two or more coils of wire that are wrapped around a core, usually made of iron or steel. The coil that receives the input power is called the primary coil, and the coil ...