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.
Factory direct dead tank SF6 circuit breaker for 40.5kV to 66kV systems, delivering reliable and cost-effective high-voltage protection
Three-phase AC dead tank SF6 circuit breaker source manufacturer for 72.5kV systems, delivering reliable high-voltage protection and switching solutions.
High voltage live tank SF6 circuit breaker for 72.5kV, 126kV, 145kV, 252kV, delivering reliable protection for transmission and subtransmission grids.
Está em conformidade com as normas IEC 62271-100 e GB/T 1984. Estão disponíveis a fabricação personalizada e soluções completas, incluindo projeto, montagem e ensaios.
Pressão nominal do gás SF₆ de 0,5‑0,6 MPa, taxa de vazamento anual de gás ≤0,5%; a vida mecânica atinge 10 000 ciclos de operação.
O motor de armazenamento de energia e o circuito de controle utilizam CC 110 V / CC 220 V; a fonte de alimentação do aquecedor é CA 220 V.
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