The GW4-252 series outdoor AC disconnectors are widely used in three-phase AC 50Hz circuits of 220kV and above grade substations. They are designed for switching circuits under voltage-without-load conditions and serve as safety isolation devices during circuit maintenance, providing visible isolation gaps and safe grounding for line maintenance work.
This series of disconnectors, when used in conjunction with electric operating mechanisms (CJ2 type electric operating mechanisms) and substation intelligent operating systems, can fully meet the operational requirements of intelligent substations.
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