| Brand | ROCKWILL |
| Model NO. | 1100kV UHV SF6 Circuit Breaker |
| Rated voltage | 1100KV |
| Rated normal current | 4000A |
| Series | LW10B |
Description
SF6 circuit-breaker is a double-column four-fracture form, with a shunt capacitor and a closing resistor at interrupter chamber breaks; The circuit-breaker has compact structure, small arc extinguishing chamber, high contact speed, stable and reliable performance, long service life and high comprehensive technical and economic index.
SF6 circuit-breaker is outdoor three-phase AC 50Hz UHV transmission equipment, which is used to control, measure, protect and switch transmission lines in the power system with a rated voltage of 1000 kV. It can also be used to meet the capacitive current of the filter bank and capacitor bank to realize the control and protection of the filter bank and capacitor bank. The circuit-breaker is equipped with ABB HMB-8.12 compact spring hydraulic operating mechanism for division, closing and automatic reclosing. Each column has an independent hydraulic system, which can be operated in separate phases to realize single-phase automatic reclosing. Through the electrical linkage can also be three-phase linkage operation to achieve three-phase automatic reclosing.
Main Features
Double column four fracture form, interrupter chamber fracture parallel capacitor and closing resistor, Cut back on oil.
The mechanical reliability of the product is good, to ensure the mechanical life of 10,000 times.
The circuit breaker structure is compact, the arc extinguishing chamber is small, the contact movement speed is high, the performance is stable and reliable, the service life is long, the comprehensive technical and economic indicators are high.
Technical parameter
live tank circuit breaker is a structural form of high-voltage circuit breaker, which is characterized by the use of ceramic insulation pillars to support key components such as arc extinguishing chamber and operating mechanism. The arc extinguishing chamber is usually arranged on the top or pillar of the ceramic pillar. It is mainly suitable for medium and high voltage power systems, with voltage levels covering the range of 72.5 kV to 1100 kV. live tank circuit breakers are common control and protection equipment in outdoor distribution devices such as 110 kV, 220 kV, 550 kV, and 800 kV substations.
In a live tank breaker, the arc chamber is mounted at the top or side of the column, exposed to ambient air. In a dead tank breaker, the arc chamber is placed inside the metal tank, fully sealed.
ABB’s high-voltage live-tank vacuum breakers are reliable but costly with long lead times. Hitachi Energy is mature yet lacks local high-voltage track records and smart features. Schneider Electric excels in 40.5kV distribution but is limited in voltage range and extreme performance. In contrast, Rockwill offers up to 363kV SF₆-free vacuum solutions with fast local service and spare parts delivery. Featuring robust mechanisms, full smart functions, and superior resistance to extreme cold, heavy salt fog, and short-circuit currents, our breakers ensure long maintenance-free service and lower LCC.
Q:Can Rockwill custom-engineer or modify Live tank Vacuum circuit breaker specifications to meet project-specific requirements?
A:
Rockwill provides comprehensive customized design and parameter modification for live tank vacuum circuit breakers to meet diverse project requirements. Backed by our professional R&D team, we flexibly adjust product structures, technical parameters and environmental adaptability, delivering exclusive tailored solutions in line with various on-site conditions and project standards.
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