113results about How to "Reduce supply voltage" patented technology

The invention relates to a pulse power type permanent magnet linear motor (PMLM) operating mechanism of a high-voltage circuit-breaker, belonging to the technical field of a high-voltage circuit-breaker operating mechanism in power transmission and transforming equipment. The operating mechanism comprises a primary iron core, secondary iron cores, motor main shafts and armature windings; wherein,the primary iron core is internally provided with the two symmetrical secondary iron cores, magnetic isolation material is arranged between the two secondary iron cores, one end of every secondary iron core is connected with one motor main shaft, and the armature windings are embedded into the secondary iron cores; the magnetic isolation material is also arranged between the primary iron core andthe end surfaces of the secondary iron cores, and a permanent-magnet is arranged between the side of each secondary iron core and the primary iron core. The invention has the advantages that the particularity of the breaking-closing position is fully considered by the design of the structure of the operating mechanism, so that the magnetic isolation material is particularly designed; the permanent-magnet block is arranged above the static primary iron core; meanwhile, in order to produce larger electromagnetic thrust, the starting time is short, so that higher dynamical property requirement can be reached, thus being well matched with the characteristic requirements of the circuit-breaker.