800kV Gas Insulated Switchgear
ZF28-800 Gas Insulated Switchgear is a three-phase AC high-voltage electrical equipment, which is designed for controlling, measuring, protecting, and switching power transmission lines, and can be combined into the required main wiring arrangement according to user requirements.
Excellent performance
Good usability
High safety
High modularity
IEC
Features
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01
Excellent performance
It adopts a double-channel sealing structure, ensuring an annual gas leakage rate of less than 0.1%. With excellent insulation performance, it exhibits a whole bay partial discharge of less than 3pC. It also shows excellent short-circuit current breaking capability, meeting the circuit breaker's requirement for a DC component time constant of 120ms.
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02
Good usability
The mechanism is placed at a low position, with meters conveniently located and indicators clearly visible, meeting customer habits and facilitating maintenance.
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03
High safety
It is highly adaptive to harsh environments such as strong northwest winds and sands, and large daily temperature difference.
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04
High modularity
The product boasts a highly modular design. The connecting flanges are of standardized dimensions, allowing for flexible configuration according to requirements, and the modules are highly interchangeable, facilitating expansion and the optimization of substation layout.
Technical Specifications
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Rated voltage
800 kV
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Rated frequency
up to 6300 A
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Rated short-duration power-frequency withstand voltage（1 min，effective value）Phase to phase,phase to ground
960 kV
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Rated short-duration power-frequency withstand voltage（1 min，effective value）Across isolating distance
960+462 kV
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Rated lightning impulse withstand voltage（peak value）Phase to phase,phase to ground
2100 kV
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Rated lightning impulse withstand voltage（peak value）Across isolating distance
2100+650 kV
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Rated short-time withstand current
up to 63 kA/80kA
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Rated duration of short-circuit
3 s/2 s
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Rated peak withstand current
up to 171 kA
Tel : +021-61610502
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