RHD‑170 SF6 dead-tank circuit breaker, 170kV, rated current 3150‑4000A, short-circuit breaking current 31.5‑50kA, self-blast arc-extinguishing, three-phase SF6 gas insulated high-voltage circuit breaker.
This product flyer is the technical brochure for high‑voltage SF6 dead‑tank circuit breaker, designed for tender preparation, substation project evaluation and pre‑sales technical reference.
The product meets IEC 62271‑100 and GB/T 1984 standards. This brochure covers comprehensive technical indicators including lightning impulse withstand voltage, power frequency withstand voltage, creepage distance, partial discharge, SF6 gas alarm and locking pressure, gas moisture limit, annual gas leakage rate and mechanical operating life, together with standard reclosing operation sequence O‑0.3s‑CO‑180s‑CO.
It adopts integrated three‑phase tank structure with outdoor porcelain bushings and SF6 density monitoring relay to continuously track gas status. The document also specifies the power configuration for heater, energy storage motor and control circuit, as well as first‑open‑pole factor, capacitive current breaking performance and switching time parameters.
Customized technical solution including design, assembly and factory acceptance test is available for global EPC projects. Please contact us to obtain complete type test certificates and full operation & maintenance manuals.
High-performance 170kV Dead-Tank SF6 Circuit Breaker. Features 63kA breaking capacity, 9-grade seismic safety, and -50°C reliability.
Dead Tank SF6 Circuit Breaker (115kV-170kV) offers high reliability and efficient arc extinguishing. Its robust design ensures stable power system protection.
Factory direct dead tank SF6 circuit breaker for 40.5kV to 66kV systems, delivering reliable and cost-effective high-voltage protection
Annual SF6 gas leakage rate is the core indicator, which reflects the sealing reliability of tank body and sealing joints over years of operation. Please contact us for leakage test data.
This operating sequence defines the required fault interruption and auto-reclosing duty for overhead transmission lines, and needs coordination check with local grid protection settings. Please contact us for technical coordination support.
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