RHD-72.5 SF6 Gas Dead tank Circuit Breaker
RHD-72.5 dead-tank SF6 circuit breaker: 72.5kV, 2000-3150A, lightning impulse 325/375kV, short-time 31.5-50kA, making peak 100-125kA. For HV grid switching and short-circuit faults.
RHD-72.5 dead-tank SF6 circuit breaker: 72.5kV, 2000-3150A, lightning impulse 325/375kV, short-time 31.5-50kA, making peak 100-125kA. For HV grid switching and short-circuit faults.
This circuit breaker adopts self‑blast arc‑extinguishing principle, three‑phase post‑type porcelain insulator structure and pointer‑type density relay, with mechanical life up to 10 000 times and customized manufacturing available. It complies with IEC 62271‑100 and GB/T 1984 standards, delivering safe, reliable and easy‑to‑install performance with full‑set design, assembly and test solutions.
Rockwill RHD 170kV dead tank SF6 circuit breaker with powerful arc extinction, seismic-resistant design & maintenance-free spring mechanism, reliable for harsh HV grid transmission projects.
40.5–72.5kV Dead Tank SF6 Circuit Breaker, E2 class, IP55 & IK10 rating, low-center gravity seismic structure, wide -40℃~+55℃ range, suitable for cold and high-altitude areas.
Three-phase AC dead tank SF6 circuit breaker source manufacturer for 72.5kV systems, delivering reliable high-voltage protection and switching solutions.
It complies with IEC 62271‑100 and GB/T 1984. Customized manufacturing and overall solutions including design, assembly and test are available.
Rated SF₆ gas pressure 0.5‑0.6 MPa, annual gas leakage rate ≤0.5%; mechanical life reaches 10 000 operation times.
Energy‑store motor and control circuit adopt DC110 V / DC220 V; heater power supply is AC220 V.