GW4G series disconnectors are outdoor 3-pole high voltage equipment. They are applied at no-load condition, to switch high voltage line and isolate electrically other electric equipmentneeding check or maintenance.
Compared with GW4 series, GW4G series is a new type of disconnector with great improvement to according to the conditions in the electric power supply system in China.
2.1 Main electric system and grounding system used the vertical conductive material contacts to overcome the shortcoming of carbon steel wire spring which easily torusty. Meanwhile fixed installation also refers to the phenomenon that movingcontacts trapped by dust and sand.
2.2 Bearing base used cast aluminum materials, and added rubber ring to its top and bottom to prevent flooded into the sand. Solve the problem that rusting and jammingof bearing.
2.3 In the manufacturing process, we use large quantities of aluminum castings. The remaining steel parts used the hot-dip zinc or “Dacromet” anti-rust technology, andsubstantially reduce welding, to maintain the appearance quality in the long-term.