Abstract: In a stationary electromagnetic induction unit according to this invention, a plate-like coil is constituted by a plurality of coil elements wound in parallel. Therefore, a conductor width of the coil element becomes small, and a stray loss caused by a leakage flux vertically interlinked with the surface of the coil element, namely, the plate-like coil is reduced.

Abstract: A rectifier transformer for supplying a predetermined alternating current to a rectifier includes: a transformer having secondary windings (cell windings) connected in a double star in such a manner that common terminal side conductors of the secondary windings are individually drawn out; and an interphase reactor having three iron cores, one of which is provided or each individual phase, primary windings formed by passing the conductors connected to two ends of the individual cell windings through the corresponding iron cores, and secondary windings wound around the corresponding iron cores in such a way that they are inductively coupled to the primary windings, the secondary windings being connected to each other in series so as to form a closed circuit.