Fabrication of 15kW 3000 RPM Permanent Magnet Synchronous Motor

Amount

Complete fabrication of structural parts such as stator frame (motor body), end shields, bearing cups, terminal box, bolts nuts, cooling fan, fan cover, name plate, shaft, rotor key, load key, magnet retaining discs, sealed bearings etc. and assembly, as per the detailed tender specifications.

Assembly of stator core including fabrication and fixing of key way on yoke for core stamping insertion, fabrication of stopper plate to keep the core stamping under sufficient force, assembly of 105mm length stator core using 0.35mm thick stampings with stacking factor not less than 0.96 and varnishing of the finished core as per detailed tender specifications.

Assembly of 105mm rotor core with step skew of 6° with 0.35mm laminations having stacking factor not less than 0.96, careful handling and insertion of permanent magnets into the rotor core, fabrication of rotor core stopper plates and securing the core by bolting them and re-varnishing the finished core surface as per detailed tender specifications.

Armature winding work including slot preparation, removal of any burr inside the slots, covering the slot inner periphery with F or H class insulation paper, preparation of the Copper coils with H class insulation suitable for the winding pitch, carrying out the winding as per the winding schematic with slot fill factor not less than 33%, ensuring balance of winding with resistance and inductance deviation between each phase not more than ±5%, bringing out both the ends of the phase winding to terminal block, fabrication of the terminal block and termination of phase end connections at the terminal block; as per the detailed tender specifications.

Dynamic balancing of Rotor, overall motor assembly, painting, back EMF testing of the motor at rated RPM and all transportation & material handling; as per the detailed tender specification.

J D Engineering Works

Edison Electrical Works Pvt Ltd