1.Product Name: Arc suppression coil with magnetic bias compensation system 2.Model No.: MRD-XHP 3.Minimum order: 1 set 4.Brand name: MINGRUI 5. Unit configuration: Grounding transformer, arc suppression coil with magnetic bias, micro-computer controller, current transformer 6. When place your order, please inform us system voltage grade, arc suppression coil capacity, grounding transformer capacity, quantity of zero sequence current transformer