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1100kV Hybrid Gas-Insulated Switchgear
The ZF28-1100 HGIS is a complete set of 1000kV high-voltage three-phase AC switchgear. The whole equipment adopts a fully enclosed, modular aluminium alloy structure, which can be flexibly combined into different main wiring methods according to user needs. It has strong interchangeability and is easy to expand.
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Engineered for Peak Performance
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Durable Structural Design
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Intuitive Operation
Product Highlights
Engineered for Peak Performance
It meets the basic operational requirements of State Grid’s UHV transmission and transformation projects. The insulation performance has been enhanced, with the product passing tests against insulation parameters exceeding the standard requirements. The casing is designed, manufactured and inspected in accordance with ASME standards, thereby enhancing the safety performance of the equipment;
Durable Structural Design
There is no horizontal basin as a whole, and the equipment is designed to prevent foreign objects. Hand holes are set up on the docking surface, and particle traps are set up in the gas chambers of circuit breaker, disconnecting switch, and earthing switch, and transition gas chambers are reasonably set up to meet the reliability requirements of ultra-high voltage engineering;
Intuitive Operation
All operating mechanisms are arranged in a low position to improve the convenience of on-site operation, maintenance, and repair. The product is easy to expand, with a small impact range during expansion and good consistency in expansion continuity.
Technical Specification
Rated Voltage
1100kV
Rated Current(Line Bay)
6300A
Rated Current(Main Busbar)
up to 10000A
Rated Short-Duration Power-Frequency Withstand Voltage(1 min,Effective Value) - Phase to Phase,Phase to Ground
1100kV
Rated Short-Duration Power-Frequency Withstand Voltage(1 min,Effective Value) - Across Isolating Distance
1100+635kV
Rated Lightning Impulse Withstand Voltage(Peak Value) - Phase to Phase,Phase to Ground
2400kV
Rated Lightning Impulse Withstand Voltage(Peak Value) - Across Isolating Distance
2400+900kV
Rated Short-Time Withstand Current
63 kA
Rated Duration of Short-Circuit
3 s
Rated Peak Withstand Current
up to 171 kA
