LW58 Outdoor HV AC SF6 Circuit Breaker
LW58 Outdoor HV AC SF6 Circuit-breaker is outdoor high-voltage transmission equipment with three-phase high-voltage AC frequency of 50Hz/60Hz, which can be used for the control and protection of high-voltage transmission lines such as power plants, substations, industrial and mining enterprises, and can also be used as a liaison circuit breaker.
Perfect breaking performance
Reliable mechanical performance
Excellent sealing performance
IEEE
IEC
Energy Storage
Power
Features
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01
Perfect breaking performance
Arc extinguishing chamber design adopts thermal expansion & auxiliary pressure gas arc extinguishing technology, with good breaking performance;
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02
Reliable mechanical performance
The spring adopts spiral double compression spring, compact structure, the spring working shear stress is very low, the product mechanism operating power is small, the mechanism base adopts aluminium alloy integral casting, stable performance, high reliability, mechanical edurance up to 10000 times;
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03
Excellent sealing performance
The mechanism box is sealed with airbag type sealing strip, the protection level reaches IP65, and the annual leakage rate of sulphur hexafluoride gas is far less than 0.1%.
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
Downloads
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