LW31C-252 Three phase mechanical linkage outdoor high-voltage SF6 circuit breakerDetailed product description：

The LW31C-252 three-phase mechanical linkage outdoor high-voltage SF6 circuit breaker uses sulfur hexafluoride as the insulation and arc extinguishing medium. This circuit breaker is used as the main transformer protection equipment in power systems with AC 50Hz, rated voltage of 252kV, and rated current of 3150 and 4000A. It is equipped with an ETNA hydraulic operating mechanism and can perform three-phase fast automatic reclosing operation.

LW31C-252 three-phase mechanical linkage outdoor high-voltage SF6 circuit breaker features:
1. Simple design, mature components, and high reliability.
2. By applying the double principle, the contacts have precise geometric shapes and can be suitable for various operating conditions.
3. Contact separation is achieved through precise adjustment of arc blowing, resulting in minimal overvoltage when operating inductive currents.
4. Due to the enclosed state inside the arc extinguishing chamber, a hydraulic system is used in the hydraulic spring operating mechanism, resulting in low working noise.
5. Imported hydraulic mechanism is adopted, which has the advantages of stable performance, reliability, and high mechanical life.
Due to the use of special materials and multiple SF6 sealing systems for the separation of the two types of contacts, the maintenance interval is long.