40.5kV SF6 dead‑tank circuit‑breaker, rated current 1600‑3150A, short‑circuit breaking current 25‑31.5kA, self‑blast arc‑extinguishing, three‑phase post‑type porcelain insulator for outdoor substation.
This PDF product flyer is a technical reference for medium‑high‑voltage SF6 dead‑tank circuit‑breaker, used for tender comparison, preliminary project selection and pre‑sales technical evaluation. The product follows IEC 62271‑100 and GB/T 1984 standards.
This datasheet records full‑set performance indicators including lightning impulse and one‑minute power‑frequency withstand voltage, creepage distance, partial discharge requirement, SF₆ alarm‑blocking pressure threshold, gas moisture limit, annual gas leakage rate, mechanical operating life, first‑open‑pole factor 1.5, 4‑second short‑circuit duration and O‑0.3s‑CO‑180s‑CO special reclosing operation sequence.
It is equipped with pointer‑type density relays to monitor SF6 pressure and density in real‑time, and specifies power‑supply parameters for anti‑condensation heater, energy‑store motor and control circuit. Custom‑manufacturing services covering design, assembly and factory test are available for substation projects. Please contact us to get complete outline dimension drawings and full set of type‑test reports.
Factory direct dead tank SF6 circuit breaker for 40.5kV to 66kV systems, delivering reliable and cost-effective high-voltage protection
Outdoor dead tank SF6 circuit breaker direct supply for 362kV systems, delivering reliable high-voltage protection for transmission networks.
Three-phase AC dead tank SF6 circuit breaker source manufacturer for 72.5kV systems, delivering reliable high-voltage protection and switching solutions.
Low partial discharge value proves sound internal insulation, reduces insulation ageing risk and extends the whole service life of high‑voltage equipment. Please contact us for relevant test data.
It reflects the capability to switch on and off no‑load overhead lines, an important indicator for distribution and substation equipment selection. Please contact us for application boundary explanation.
Excessive moisture may cause internal condensation, reduce dielectric strength and accelerate corrosion of internal metal and insulating components. Please contact us for on‑site gas handling guidance.
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