Title :
Accurate Measurement of the Air-Core Inductance of Iron-Core Transformers With a Non-Ideal Low-Power Rectifier
Author :
de Leon, Francisco ; Jazebi, Saeed ; Farazmand, Ashkan
Author_Institution :
Dept. of Electr. & Comput. Eng., Polytech. Inst. of New York Univ., New York, NY, USA
Abstract :
The air-core inductance of power transformers is measured using a nonideal low-power rectifier. Its dc output serves to drive the transformer into deep saturation, and its ripple provides low-amplitude variable excitation. The principal advantage of the proposed method is its simplicity. For validation, the experimental results are compared with 3-D finite-element simulations.
Keywords :
inductance measurement; power transformers; rectifiers; 3D finite-element simulations; air-core inductance measurement; iron-core transformers; low-amplitude variable excitation; nonideal low-power rectifier; power transformers; Circuit faults; Current measurement; Inductance; Pollution measurement; Power transformer insulation; Windings; Air-core inductance; core deep saturation; inrush currents; transformers;
Journal_Title :
Power Delivery, IEEE Transactions on
DOI :
10.1109/TPWRD.2013.2288023
