Repairs to 100 KVA HT/LT transformer and urgent electrical works to be carried out at Lift Irrigation Scheme Unisoo New, Gundmacher, Wadipora of MISD Handwara.

Amount

Dismantling of 100KVA 11/0.4kV transformer of L.I.S Unisoo New by way of disconnecting of all HT and LT connections, lowering of transformer from H-frame, dragging of same inside pump house by way of engaging labour, tools tackles, opening of top lid of the transformer, dismantling of internal HT/LT internal connection and lifting of core assembly at site for accessing of damages to transformer at site.

Providing and fitting of MS nuts, bolts and washers of assorted sizes.

Providing and fitting of brass metal part stem part with allied fittings of transformer bushings.

Complete assembling of 11/0.4kV transformer by way of fitting of and gaskets, insulators, etc. Dragging to H-frame, lifting and resting of same on H-frame. Reconnecting of HT/ LT connections and testing.

Engaging of Skilled electrician for one day for checking of HT /LT transformer at Unisoo new.

Checking/Refitting/tightening/ of loose HT connections over H-frame and HT line by way of engaging labour for support of electrician.

Repairs to 40 HP OISD starter at LIS Gundmacher way of replacement of damaged fixed 04 & movable contact point 05 of OISD starter at site. The job also includes the charge for Repairs to the handle mechanism by way of providing and fitting of new tension springs, trip mechanism coil, nuts and allied accessories. The job includes providing of filling of fresh 05L T-oil for topping. The job includes the charge of skilled labour, tools & tackles, carriage charges across a lead of 150 km to and fro from site to workshop for the completion of work.

Dismantling of 05 HP mono-block priming pumping unit at LIS Unisoo new and shifting it to the workshop and unloading it there. Dismantling of motor at workshop and extraction of damaged windings from the slots of stator. Complete rewinding of stator coils of single phase priming motor with suitable gauge copper wire of standard quality after removal of burnt out windings, cleaning of slots including insulating, varnishing, tapping, heat treatment etc. (Note: The unserviceable scrap copper generated shall be property of the firm and is taken into account for estimation of rates). The job includes repairs to mechanical components by way of providing, fitting of new sleeves as per sample, including rebuilding of shafts, providing fitting of nuts and bolts, new PVC fan. Extraction of old damaged bearings and providing and fitting of new DE & NDE bearings (01 no. each) as per sample of reputed make. Reassembling of the pumping unit after repairs, shifting back to site, installation and testing of same at site.

Dismantling of the 20 HP, 1460 RPM three phase induction motor at LIS Wadipora, dragging the motor to the loading site, loading in private load carrier and shifting of the motor to the workshop across a lead of approx. 35 km. Dismantling the motor at workshop and then extracting the rotor from the stator, stripping of old and burnt enamelled copper wire along with insulation material from the stator, cleaning of stator slots with petrol and recommended cleaning chemicals. Rewinding of the stator by way of formation/insulation of requisite number of coil sets of suitable cross section made of super enamelled copper wire of requisite gauge (approx. weight of copper used=11 kg (Note: The unserviceable scrap copper generated shall be property of the firm and is taken into account for estimation of rate.). Coils shall be fitted/installed by using superior quality insulation material i.e. film paper, special leathered sheets, glass cloth of requisite thickness. Varnishing the stator with superior quality varnish and drying the stator with hot air/blower. The job shall further involve replacement of the worn-out/damaged motor bearings to NDE and DE 6309 (02 no) of reputed make as per sample by way of extracting the old ones with the help of pullers and refitting of the new ones. The bearings shall be lubricated enough by high quality grease and checked before further procedure. Replacement of the damaged/burnt-out Bakelite connection plates for fixing the six insulated connection terminals coming from motor so that motor could be operated in star or delta configuration as per site requirement. After carrying out the above job the motor shall be reassembled and shifted back to the site across a lead of approx 35 km, refitted on the base frame and reconnected with all the electrical/mechanical connections using new thimbles, nuts bolts etc. Testing of the motor shall be done on no load and full load at site.

City Engineering Works

M/s SAJID ENGINEERING WORKS