Epoxy Fault Interrupter (EFI)
Entec's Epoxy Insulated Fault Interrupter is a one-shot circuit breaker used in the overhead line of 25.8kV. It protects the upstream lines by interrupting the fault currents up to 12.5kA and provides sectionalizing functions by isolating the faulted area.
The EFI uses spring charged mechanism, and it uses vacuum interrupters encapsulated in the epoxy bushing to arc quenching.
The bushings are made of HCEP(Hydrophobic Cycloaliphatic Epoxy) that provides excellent insulation performance even under harsh climatic environments and polluted areas. The EFI tank and control cubicle are made of stainless steel, which have strong endurance against hot, humid, dusty, or corrosive environment.
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