In the paper was analyzed the existing approaches of transformers diagnostic. There were offered to diagnostic dry traction transformer substation by the most heated point of transformer windings, ambient temperature, power of secondary winding circle of transformer and its range of overload. Structure of diagnostic system was designed.
Two-region kvazivector control system traction’s electric drive of diesel engines-trains DEL-02, features of construction and works are discussed, witch use of an internal contour of regulation of an active component of a current in a link the operated rectifierindependent the pressure inverter.
