ZW39 Outdoor HV AC Vacuum Circuit Breaker
The ZW39 Outdoor High-Voltage AC Vacuum Circuit Breaker is a three-phase, high-voltage AC (50Hz/60Hz) outdoor switching device designed for power transmission and distribution systems. It is suitable for the control and protection of high-voltage transmission lines in power plants, substations, and industrial or mining facilities. Additionally, it can function as a tie circuit breaker for coupling or isolating power sources in complex grid configurations.
Environment-friendly
It can be used in high-cold areas
Reliable mechanical performance
Excellent sealing performance
IEEE
IEC
Energy Storage
Power
Features
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01
Environment-friendly
Adopting vacuum arc extinguishing, the outer insulation adopts N2 gas insulation, no SF6 gas, GWP value is 0;
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02
It can be used in high-cold areas
The product employs N2 gas insulation and vacuum arc extinguishing, eliminating the issue of low-temperature liquefaction associated with SF6 and other gases, and is capable of meeting the operational environmental requirements of -50℃.
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03
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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04
Excellent sealing performance
The mechanism box is sealed with airbag type sealing strip, and the protection level is up to IP65.
Technical Specifications
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Rated voltage（kV）
31.5, 40.5, 72.5, 145
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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 current(A)
Up to 3150
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Rated short-circuit breaking current(A)
Up to 40
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Rated short circuit making current (peak)(kA)
Up to 104
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Rated short-time withstand current(kA)
Up to 40
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Rated peak withstand current(kA)
Up to 104
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Rated short-time withstand current duration(s)
4
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Rated operating sequence
O-0.3s-CO-3min-CO
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Mechanical edurance(times)
10000
Tel : +021-61610502
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