LW58 Outdoor HV AC SF6 Circuit Breaker
LW58 Outdoor High-voltage AC SF₆ Circuit Breaker features strong environmental adaptability, high reliability, and maintenance-free operation. Rated voltage 252kV. Provides three-pole intertripping & pole-discrepancy operation solutions. Suitable for high-voltage power transmission and distribution applications such as substations.
Superior interrupting performance
Reliable mechanical performance
Excellent sealing protection
Exceptional environmental adaptability
Features
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01
Superior interrupting performance
Employs dual-motion self-energy & assisted compression arc-extinguishing technology. Delivers robust interrupting capability across the entire series (up to 63kA), suitable for diverse complex operating conditions.
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02
Reliable mechanical performance
Utilizes a new integrated die-cast aluminum base spring operating mechanism. Compact structural design ensures stable output performance, high reliability, and maintenance-free operation. Mechanical life meets M2 class requirements.
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03
Excellent sealing protection
Adopts diaphragm sealing structure. SF₆ gas leakage rate ≤0.05% per year.
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Exceptional environmental adaptability
Provides low-temperature application solutions with pure SF₆ gas or SF₆ gas mixtures. Capable of withstanding -50℃ extreme cold, high altitude, high seismic conditions (1.0g), and other harsh environments.
Technical Specifications
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Rated voltage（kV）
252
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Rated frequency（Hz）
50/60
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First-pole-to-clear Factor
1.3/1.5
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Rated normal current(A)
Up to 5000
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Rated short-circuit breaking current(A)
Up to 63
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Rated short circuit making current (peak)(kA)
Up to 158
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Rated short-time withstand current(kA)
Up to 63
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Rated peak withstand current(kA)
Up to 158
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Rated short-time withstand current duration(s)
3
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Rated operating sequence
O-0.3s-CO-3min-CO
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Mechanical edurance(times)
10000
Tel : +86 （021）61610502
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