ZHW58A Hybrid Gas Insulated Switchgear
ZHW58A Hybrid Gas Insulated Switchgear is a kind of outdoor high-voltage transmission equipment suitable for three-phase high-voltage AC frequency 50Hz/60Hz, which is composed of three-station isolated ground switch, current transformer, circuit breaker and other modules.
Stable breaking performance of the circuit breaker
Excellent performance of isolated earthing switch
Reliable mechanical performance
Reliable sealing performance
IEEE
IEC
Energy Storage
Power
Features
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01
Stable breaking performance of the circuit breaker
Circuit breaker arc extinguishing chamber is horizontal structure, adopting thermal expansion + auxiliary pressure gas arc extinguishing technology, stable and reliable breaking performance, electric life up to E2 level (full capacity breaking > 20 times).
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02
Excellent performance of isolated earthing switch
The isolated earthing switch has good ability to open and close capacitive and inductive small currents and busbar conversion currents, and the earthing switch can have the ability to open and close class B inductive currents.
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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
Reliable 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）
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
Tel : +021-61610502
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