Metal Oxide Surge Arrester

A disconnector is incorporated in the type WDLB outdoor a.c. high-voltage drop-out MOA ,and it will actuate before the MOA is damaged. So MOA will drops out quickly and terminates its operation, and the system’s single-phase earthing is avoided.

Characteristics

The type WDLB outdoor a.c. high-voltage drop-out MOA has the visible disconnecting indication and is easy for exchanging when a failure occurs. The line does not need power supply, which brings out great convenience for an overhaul and maintenances of power lines.