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