Abstract
The hot spot temperature of a dry-type iron core reactor is important for its pre-design and optimal design. To precisely study the hot spot temperature and temperature distribution law of dry iron core reactor, this paper firstly studied the loss of reactor, including coil loss and core loss, and obtained the calculation method of reactor loss. Then, the normal working environment of the dry core reactor is analyzed, and the temperature field simulation is carried out for a three-phase dry core reactor with an inductance value of 11.561 mH and capacity of 10 kV, and the hot spot temperature and temperature distribution law of this reactor are obtained and analyzed through reasonable material setting and heat dissipation method setting. Finally, the accuracy and validity of the simulation results are verified by the actual temperature rise experimental data. The research results provide a theoretical basis for structure optimization and online monitoring of the dry core reactor.
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