Abstract
Voltage transformer, providing primary system voltage information to secondary system to measure, monitor and protect the power grid, is a very important equipment to ensure the safe operation of power grid. In the neutral ungrounded distribution system, since the excitation inductance of electromagnetic voltage transformer has nonlinear characteristics, and the ferromagnetic resonance phenomenon are prone to occur under certainconditions, which has serious influence on safe and stable operation of the system. The ferromagnetic principle of electromagnetic voltage transformer in neutral ungrounded system and its harm are briefly analyzed and introduced. Combined with the actual case, the damage reason of 10kV bus voltage transformer in substation is analyzed and the correctness of the analysis result is verified by theoretical calculation. Finally, the countermeasures are put forward to improve the operation safety of voltage transformer in distribution network.
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.
