Failures of cast-resin transformers not only reduce the reliability of power systems. but also have great effects on power quality. Partial discharges (PD) occurring in epoxy resin insulators of high-voltage electrical equipment will result in harmful effects on insulation and can cause power system blackouts. Pattern recognition of PD is a useful tool for improving the reliability of... https://macorners.shop/product-category/graduation-tassel-charm/