How does magnetizing current relate to the audible noise produced by a transformer? What is magnetostriction and how does it contribute to transformer noise related to magnetizing current?

Feb 13, 2017 ... The current that flows through the primary winding of a power transformer when no loads are connected to the secondary winding; this current ... Highlights. •. Improved magnetizing current based position/speed estimator of DFIG is proposed. •. The estimator is capable to start on fly. •. The proposed ... Aug 14, 2014 ... In a class X CT the performance is defined in terms of a knee-point voltage and the magnetizing current at the knee point voltage or 1/2 or 1/4 ... ia, ib, and ic are the a-, b- and c-phase stator winding currents. imr_ref is the reference magnetizing current. imr is the magnetizing current. v ... As we discussed, the magnetizing current is the current drawn by the transformer for setting up magnetic flux in the core. Therefore, the magnetization current, ... [4] T. R. Specht, "Transformer Magnetizing Inrush Current," Transactions of the American Institute of Electrical Engineers, vol. 1, no. 70, pp. 323–. 328 ... The d-axis stator current can be written as the difference of the magnetizing current and the sum of the rotor currents. Using (21) and (22) to calculate the ... Motor rated magnetizing current change and Identification final display change. Created by: kamal.mbc at: 11/19/2017 3:21 PM (2 Replies) May 23, 2010 ... The magnetising current is that current which flows in the primary winding when the primary voltage is applied with the secondary unloaded. It's ... In other words, the magnetizing current does not produce any current in the secondary. ... magnetizing current and present an accurate B-H curve of a ...