Abstract: This paper presents two approaches for calculating the iron-core and copper losses of a 25 kVA single-phase pole transformer subjected to low-frequency voltage harmonics: an approximate ...

One of the most advanced fields of science is “graph theory,” which plays a vital role in the applications of other branches of science like chemistry, biology, physics, electrical engineering, ...

The relevant standards do not define the energy efficiency grade of on-load capacity regulating distribution transformers, and the actual energy efficiency grade attribution judgment lacks methods and ...