ZHW58A Hybrid Gas Insulated Switchgear
ZHW58A combined apparatus integrates modules such as circuit breaker, DS, ES, CT, PT, FES, etc. It features a small footprint, strong environmental adaptability, high reliability, and maintenance-free operation. The rated voltage covers 40.5-145kV, making it suitable for high-voltage power transmission and distribution applications such as substations.
Compact structure
Excellent electrical performance
Reliable mechanical performance
Highly modular design
Features
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01
Compact structure
Three-phase split-tank design with an integrated base frame. Enables integral three-phase transportation by bay, ensuring convenient and reliable on-site installation.
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02
Excellent electrical performance
Superior insulation properties. Integral partial discharge <3pC. Horizontal breaker layout structure enables switching capability of 40kA.
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03
Reliable mechanical performance
Employs a new integrated die-cast aluminum base spring operating mechanism. Compact structural design with stable output performance ensures high reliability and maintenance-free operation. Mechanical life meets M2 class requirements.
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04
Highly modular design
Modular design approach. Standardized connection flange dimensions enable flexible configuration according to requirements. Strong module interchangeability facilitates functional expansion to optimize substation layout.
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 4000
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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 108
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Rated short-time withstand current(kA)
Up to 40
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Rated peak withstand current(kA)
Up to 108
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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
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