SF6 gas-insulated load-break switch LW39-126

AC3-polehigh-voltage

LW39-126 outdoor AC high voltage ceramic pole type SF6 circuit breaker can be used in power systems with a frequency of 50Hz and a nominal system voltage of 110kV. It is the main power equipment for control and protection in power plants and substations. The circuit breaker adopts the principle of thermal expansion and self-energy arc extinguishing, and is filled with SF6 gas with excellent arc extinguishing performance and electrical insulation performance. All seals adopt double-ring O-rings, which can effectively prevent gas leakage. It is equipped with a CT30 spring. The operating mechanism realizes three-phase mechanical linkage operation. • The breaking performance is stable, and it can reliably break the faults such as short-circuit, out-of-step, and near zone at the outlet end; • The structure of the interrupter is simple, reliable, and easy to maintain; • Long electrical life, with the ability to break 20 times at full capacity, and maintenance-free for 10 years under normal operating conditions; • Small operating force, simple and reliable compact spring operating mechanism is adopted; • The rated inflation pressure of the gas is low, which can adapt to low temperature conditions; • Small footprint; • Low noise level, suitable for residential areas; • Long maintenance period and low maintenance workload; • On-site installation and debugging time is short.