Monitoring Method for GIS Electrical Contact State Based on VMD-Hilbert Marginal Spectrum Energy Entropy
To diagnose the electrical contact state of gas-insulated switchgear (GIS), the monitoring method based on variational mode decomposition (VMD) and Hilbert marginal spectrum energy entropy is proposed.The multi-physical field coupling model of GIS is established, and vibration signals under various states and operating currents are Hayward HydraPur