Shifting, installation, testing and commissioning 100KVA LT transformer at LIS Khawaskhan and repairs of 05 cusec discharge 75 HP VT pump and motor of unit-II along with allied works at LIS Katal Batal.

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Shifting, installation, testing and commissioning 100KVA LT transformer at LIS Khawaskhan

The job involves providing of crane/manual labour to shift the store items(pipes and pumps) side way to make way for shifting of 100KVA transformer on the mechanical transport at division store for carriage to workshop for repair and then unloading at workshop using crane, tools and tackles with the help of manual labour. Dismantling the transformer and extracting out the coil assembly from the container, draining out the transformer oil and then cleaning the container with appropriate chemical, checking the coil assembly for its insulation, compactness and continuity. De-moisturising the transformer oil by giving a suitable heat treatment and then filtering it. Replacement of three Nos HT bush rods of appropriate rating along with insulators. Lowering the coil assembly into the container after ensuring the delta connection and P/F of three Nos LT bush rods of appropriate rating along with required nut, bolts and insulator then assembling back the top cover of transformer by P/F gasket and required nuts and bolts after filling the filtered transformer oil and topping up by fresh transformer oil 80 ltrs approximately. Loading in the mechanical transport using tools and tackle/chain pulley block with the help of manual labour for transporting to LIS Khawaskhan. Installation of transformer on the existing structure of tube well irrigation department using long boom crane. Giving all HT and LT electrical connection by P/F the thimble of appropriate rating along with required nuts, bolts and washers. Charging the transformer on no load for a period of ten hours. The job also involves providing and installation of one no. LT Fuse link set consisting of appropriate MS angle, MS flat, drilling holes aluminum bus bars/L clamps, D type insulators , nut bolts, fuse wire, drilling holes Clamps and fixing. Job also includes proper erection of MS angle frame to be fixed on pole. Providing and fitting of the aluminium service cable to the LT junction of 95 sq. mm single core four length 4 mtrs each from LT transformer to LT fuse set after cutting & stripping the cable ends and thimbling. The complete job include cost of material, carriage, transportation fitment charges and hire charges of tools, tackles/crane and testing the transformer on full load at LIS Khawaskhan

Rebate on Old Parts

Repair of 05 cusec discharge 75 HP VT pump and motor of unit-II along with allied works at LIS Katal Batal.

Dismounting of 75 HP motor from base frame and extraction of 05 cusec discharge 02 stage VT pump of unit-II by way of disconnecting the motor connections, dismantling and extraction of discharge head, the column assembly of apprx length 38 feet , damaged spider guides, line shafts, pump shaft and bowl assemblies. Head load carriage of pump, stuffing box ,discharge head, line shafts and other material to road side up to loading point with the help of skilled manual labour and then loading in mechanical transport for carrying to work shop for repairs with the help of crane/tools, tackles using manual labour. Complete job includes cost of labour, carriage charges and hire charges of tools and tackles. Dismantling the 2 stage VT pump by way of unscrewing/cutting of rusted bolts, nuts and studs and separating the discharge bowl, suction bowl from pump body and then dismantling the two stage pump to extract the damaged impellers and pump shaft. Repairs to 05 cusec VT pump by way of repairs to suction bowl body by way of metalling,turning, finishing of intake fins and grinding them to size as per requirement. Providing/ fitting of neck ring of stainless steel material- 02 Nos. by casting, turning and boring to the required size and press fitting the same in the bowl body and pump body then locking properly. Repair to pump shaft by way of welding turning and finishing to required size and then threading it and making of key way on shaper to the required size of precision. Fabrication of impeller holding lock ring- 02 sets out of SS rod as per sample. Providing and fitting of 1no. new IInd stage impeller. Fabrication of 1 No. neck ring for Impeller and then press fitting it on the Impeller and locking it properly. Repair toIst stage impeller by fabrication of 1 No. neck ring for Impeller and then press fitting it on the Impeller and locking it properly andrebuilding the worn out portion with machine able SS electrode and turning, machining it to its original shape and size. Repair to stuffing box by providing and fitting of new bronze bush as per sample to required size after metalling, finishing and drilling holes and making internal threads on stuffing box as per requirement. Repair to top shaft by way of rebuilding with machine able SS electrode at worn out portions and then threading and making key way on shaper to the required size. Fabrication of new check nut of given size. Providing and fitting of new CI spider guide 03 Nos. along with rubber bush as per sample. Fabrication/ providing and fitting of 04 Nos body bushes. Repairs to 02Nos line shaft by way of welding, turning and making threads as per sample. Providing and fitting of 02 No sleeve for line shaft by making internal threads of required size. P/F of rubber sheet joints for flanges 05 Nos cut to required size. The job includes fitting of the pump using new nuts and bolts/ studs. Complete job includes cost of material and labour charges at workshop. Loading the repaired pump along with line shaftsand other allied equipment into the mechanical transport using crane/tools, tackles with the help of manual labour at work shop. Unloading the same at road site at LIS KatalBatal using crane/tools, tackles with the help of manual labour. Carriage to the site of installation through head load using tools and tackles with the help of skilled labour. Lowering down the pump into the sump by connecting the line shaft and suction pipes one by one ensuring proper alignment by way of P/F rubber sheet joints for threenos suction pipe and one no pump along with new nuts, bolts of required size. Mounting the motor on the base frame along with discharge head by way of coupling it with suction pipe and delivery line and by P/F of gland packing, grease and rubber sheet joint cut to required size. The complete job includes cost of material, carriage,transpotation fitment charge and testing on full load of unit No II at LIS KatalBatal. Repair to sluice valve of 200mm &250mm dia of unit II & IV respectively by way of dismantling the top cover of sluice valves by opening/cutting the damaged/rusted nuts, bolt and extracting out the damaged sluice valve rods, flap assembly of both the units along with check nuts for lifting the flap assembly. P/F of new sluice valve rods along with Check nut after fabrication as per sample to match with the internal thread of flap assembly. Assembling back the sluice valve by P/F of rubber sheet joint along with new nuts and bolts P/f of gland packing of appropriate size at site. Checking the up and down movement of the flap assembly. job also includes repair\welding of leaking mainifold at the blind end section to make it leak proof by providing of blind flange and testing for leakage if any. Complete job include cost of material, labour charges and testing on full load at LIS KatalBatal Bidders are advised to visit the site before quoting the rates and offer the requisite rebate on old material

Rebate on Old Parts

TRIKUTA ELECTRICAL AND MECHANICAL WORKS

PERFECT ELECTRICAL WORKS

M/S RAGHUNATH MECHANICAL AND ELECTRICAL ENGINEERING WORKS