Abstract
Protection against short circuits between buses tubes in short networks of ore-thermal furnaces is provided by means of electrical insulation. Failure of the insulation leads to an arc, and then to the complete destruction of the expensive bus tube package. Disconnection fault in the elements of a short network cause overheating of undamaged elements. Currently, emergency modes of operation of a short network are determined with indirect signs. It is impossible to use current protection for this purpose because of the existing restrictions on the number of current transformers and the place for their placement. The authors developed a current protection of short networks of ore-thermal furnaces from electrical damage on a single magnetic current transformer. The proposed protection is simple in design, it is able to identify breaks in the elements of a short network and protect them from short circuits. The location of the magnetic current transformer relative to the bus tube package is determined based on the simulation of the magnetic field. The article describes a method for simulating the components of the magnetic field of a bus tube package, which allows us to model them in operational and emergency modes with an error of no more than 10%.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
