Lw3 12kv Sf6 Outdoor Circuit Breaker 630-20

  Description:- Type LW3-12/630-20 column-mounted circuit breakers are suitable for use with a rated voltage of 12kV.- Rated current 630A, 50/60Hz distribution network off.- Turning off the load current and overload current in the power system can automatically separate the fault distribution circuit segments.- Switches with the latest technology of electronic controller, manual operation, electric operation and remote operation.- The electronic controller is housed in a stainless steel case and can be used in all weather conditions.- In addition, the box can also be installed with wired and wireless modems, which can achieve remote monitoring and control.- Simple column installation and arrangement is convenient and fast, reducing the construction cost. Rated parameters Other technical parameters Power frequency withstand voltage The rated voltage12kVInternal arc test20kA/0.1sec10sec (wet test)45kVRated current630AArc suppression mediumSF6Gas1min (dry test)50kVRated frequency50/60HzInsulating mediumSF6Gas1min (dry test)50kVShort-time Tolerance Current (RMS)20kA/4secCreep distance (porcelain casing)550mmCreep distance (silicone sleeve)615mmProtection grade54 Mechanical properties of