Transformer Riddle No.64 – Harmonic content in transformer noload current

No because: As you know the figure of transformer magnetizing current goes to square wave related to degree of its core saturation. In ORTHOGONAL FUNCTIONS, ?_i, defined in a?x ?b is called orthogonal (or unitary, if complex) if it satisfies the following condition: The Fourier series of an even function contain only cosine terms and may also include a DC component. Thus, the coefficients bi are zero. The Fourier series of an odd function contain only sine terms. The coefficients ai are all zero. The Fourier series of a function with half