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.
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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.
Il est conforme aux normes IEC 62271‑100 et GB/T 1984. La fabrication sur mesure ainsi que des solutions globales comprenant la conception, l'assemblage et les essais sont disponibles.
Pression nominale du gaz SF₆ 0,5-0,6 MPa, taux de fuite de gaz annuel ≤ 0,5 % ; la durée de vie mécanique atteint 10 000 cycles de manœuvre.
Le moteur de stockage d'énergie et le circuit de commande adoptent le DC 110 V / DC 220 V ; l'alimentation du réchauffeur est en AC 220 V.
Connexion
