76/MID/AN

Restoration of 200 HP 3 phase induction motor submerged due to rise in water level in river Chenab at LIS Ambaran . The job involves disconnecting all electrical connections decoupling the motor from the pump, removing from the base plate . Shifting the motor to a safer place by using manual labour and suitable tools and tackles. Dismantling the motor ,extraction of the rotor and bearings. Cleaning of rotor and stator winding with petrol and chemical cleanser. Thereafter applying Dr. Beck. Compound on stator winding by spraying impregnation process and drying the same with hot air circulation process. Checking IR value of the winding with the help of megohmmeter. Repairing of the end covers at the driving end and the non- driving end of the motor. Providing and fitting of 02 no. bearings ( 6319 & NU 319 ). Assembling of motor. Job includes cost of all material, transportation charges, head load and labour charges for skilled / semi skilled labour, hire charges for tools & tackles at the LIS. Complete Job

Restoration of 6cusec discharge 56 m head HC pump of pumping Unit No. 3 installed at LIS Ambaran . The Job involves removing the top cover, extraction of shaft and impeller assembly together with bearing brackets. Shifting the impeller shaft assembly together with bearing brackets to workshop by using mechanical transport. Complete dismantling of impeller shaft assembly. Rebuilding of impeller by using good quality electrodes. Turning/machining of rebuild impeller on lathe machine for proper size . Repairs to shaft at damaged spots by applying new material so the shaft should be balanced then finishing to proper size. Providing/ fitting of new bearing NU 310 ) and bushes ( 2 nos.) as per sample. Fabrication of neck rings as per sample. Re-assembling of impeller shaft assembly and shifting back to site. Providing/fabrication of new set of coupling as per sample. The Job includes cost of material, labour(skilled and unskilled), loading charges, hire charge of tool and tackles, to and fro carriage charges

Restroration/Repair to 200 HP three phase induction motor of pumping unit no.2 installed at LIS Ambaran . The job involves demounting the motor by unfastening the foundation nuts and bolts and also decoupling from the pump and disconnecting the electrical connections from the main supply and shifting to a safer place for repair at the Lift station. Then complete dismantling of the motor involves extraction of rotor from stator followed by cleaning of stator and rotor using compressed air, organic solvent, CCL4 etc. to remove the dust particles /silt etc. Extraction of burnt winding from the stator, cleaning of stator with petrol .P/F of new winding wire of suitable gauge & size in the stator, varnishing the stator winding with superior quality of varnish. Drying the stator winding with hot air circulation process. P/F of 6319 bearing. P/F of cooling fan of the motor and fan cover of the motor in place of damaged ones. Assembling of the motor . Refitting the motor at its installed position and coupling with pump, making of electrical connections, alignment with pump , testing of motor on full load. Complete job includes the cost of material, labour charges, hiring charges of tools & tackles, transportation charges. Complete Job

De-silting of foot valves of pumping unit no. 2,3 (250mm & 300mm) at LIS Ambaran by way of decoupling the foot valve by cutting/unfastening the nuts and bolts from suction lines . Extraction of foot valves out of river with help of manual labour. Dismantling of foot valve after unfastening/cutting the nuts & bolts. Cleaning of foot valve from mud and silt by washing with water . Repair by way of welding to damaged body and strainer of foot valve. Assembling the foot valve and P/F of new rubber packing sheet, nuts and bolts etc. Lowering the foot valve in the river & coupling with suction pipe by providing new rubber packing sheet, nuts bolts and washers. Checking for leakages. Priming the pump & testing/commissioning on full load. The job includes cost of material, labour, transportation etc as per site conditions of LIS

Restoration of 6cusec discharge 56 m head HC pump of pumping Unit No. 2 installed at LIS Ambaran . The Job involves removing the top cover, extraction of shaft and impeller assembly together with bearing brackets. Providing/ fitting of new set of bearings ( 6310 and NU 310 ) at site by using skilled labour. Re-assembling of impeller shaft assembly Providing/fabrication of new set of coupling as per sample. The Job includes cost of material, labour(skilled and unskilled), loading charges, hire charge of tool and tackles, to and fro carriage charges

M/S RAGHUNATH MECHANICAL AND ELECTRICAL ENGINEERING WORKS

G S ENGINEERING WORKS