RHD‑72.5 SF6 dead‑tank circuit breaker, 72.5kV, rated current 2000‑3150A, short‑circuit breaking current 31.5‑50kA, self‑blast arc‑extinguishing, three‑phase SF6 gas insulated circuit‑breaker.
This product flyer serves as technical brochure for medium‑high voltage SF6 dead‑tank circuit‑breaker, used for tender document compilation, substation project assessment and pre‑sales technical reference.
This product complies with IEC 62271‑100 and GB/T 1984 standards. The datasheet records full‑range technical parameters including lightning impulse and one‑minute power‑frequency withstand voltage, creepage distance range, partial discharge requirement, special alarm and blocking pressure setting, SF₆ gas moisture limit, annual gas leakage rate, mechanical life and reclosing duty O‑0.3s‑CO‑180s‑CO.
It adopts three‑phase post‑type porcelain insulator configuration and pointer‑type density relays for real‑time SF6 pressure and density monitoring. This document also specifies heater, energy‑store motor and control circuit power requirements, together with first‑open‑pole factor 1.5, 4‑second short‑circuit duration, line charging breaking capacity and each switching time indicator.
Customized solutions covering design, assembly and factory test are available for EPC projects. Please contact us for complete type‑test reports and full operation‑maintenance manuals.
Three-phase AC dead tank SF6 circuit breaker source manufacturer for 72.5kV systems, delivering reliable high-voltage protection and switching solutions.
Dead Tank SF6 Circuit Breaker provides reliable AC power interruption and superior insulation for stable high-voltage power grids.
High reliability dead tank SF6 circuit breaker for 40.5kV to 170kV, delivering robust protection for high-voltage transmission and substation applications.
Dual‑frequency compatibility is available, while relevant performance shall be confirmed according to actual grid frequency of project site. Please contact us for frequency‑adaptation reference.
Alarm pressure reminds staff to supplement SF6 gas for early warning; blocking pressure locks switching function to avoid operation under insufficient insulation level. Please contact us for on‑site commissioning tips.
Higher first‑open‑pole factor requires stronger dielectric performance for the first breaking pole under non‑simultaneous pole opening, improving adaptability for complex grid transient conditions. Please contact us for insulation coordination explanation.
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