Abstract
When an unloaded transformer is being energized, a large inrush current may flow depending upon the residual flux in the core of the transformer and the closing phase of the circuit breaker. A large inrush current may cause voltage fluctuations in the transmission system. One method of suppressing the inrush current is to perform controlled switching of the circuit breaker. In this paper, a new method of controlled switching of a 3-phase transformer in an isolated neutral system was examined. A method employing 3-phase circuit breakers with one operating mechanism and also single phase circuit breakers was used to devise a method of control switching for suppressing inrush current when the transformer is energized. In experiment using a 3 kV transformer, actual inrush currents were greatly suppressed.
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.
