Increasing Capacity of 33 KV SS Faguta, Hapur

Disconnecting HT cable connection from 33KV side & 11KV side of 05MVA Power transformer for removing power transformer from plinth after proper shutdown. Dismantling of 11KV cable support structure, copper bus bar structure, M.S.Frame etc.

Disconnecting copper flexible/Earthing strip from Power transformer neutral & Dismentling neutral earthing system to facilitate removal of Power transformer from plinth.

Disconnecting Earthing strip from body of 05MVA Power transformer.

Draining of transformer oil from conservator, radiators of existing 05 MVA T/F, at 33/11 KV S/S Fagauta, Hapur into the dry & clean drums and stacking at the safe place in Substation outside of switchyard. Empty drums shall be provided by department free of cost & shall be arranged by contractor from store to site under J.E, PVVNL

Removal of conservator, radiators and other accessories from existing 05 MVA Power transformer.

Safe Shifting of 05 MVA Power transformer main body and other accessories from the substation switchyard to outside the switchyard at suitable place assigned by concern J.E/S.D.O

Safe Shifting of 10MVA, 33/11 KV, Power transformer from out side of switchyard to near Power transformer plinth in Switchyard.

Erection & Installation of 10MVA Power transformer on Power Transformer plinth by fixing all accessories like radiators, conservator tank, filling the transformer oil to desired level and ensuring that there is no leakage, complete job in all respect. Reconnecting 2 Nos. earthing strip to transformer body.

Water level earthing by Boring and lowering of G.I. pipe size 40 mm dia & thickness 2mm into the ground at 20 Mtr depth or upto the water level with the lower end of solid copper cone Approx 225 mm long and 750 gm in weight shall be provided and screwed in pipe as well as bringing out a continuous copper wire 6 SWG from the cone up to the ground surface where it will be bolted to the M.S. earth Strip for Transformer neutral connection, the earth strip will be welded to the G.I. pipe and neutral earthing support. All required material provided / supply by the contractor own his cost.

Fabrication and erection of neutral earthing L Type support made of M.S. Channel size 100x50mm. Structure shall be 4 Mtr. long with 1 Mtr. Arms. Structure shall be grouted in ratio 1:3:6 in block size 300x300x700mm and painted with one coat of Ready Mixed primer and Two coat of enamel Aluminium paint work includes connecting neutral bushing rod of power Transformer and M.S. Earthing strip with the help of flexible copper bond, M.S. Bolt and washer with stone Pad of size (300x300x75mm).

Fabrication and erection of cable support made of two pieces of M.S. Channel (100x50x6)mm, 2.75 meter long, joined to each other by means of 5 Nos. M.S. Angle (50x50x6) mm pieces of size 0.5Mtr long each by welding at equal intervals and grouting in a block of size (300x300x700)mm in C.C. 1:3:6 complete with one coat of ready mixed primer and two coats of Al. paint. Work includes providing of three Nos. M.S. clamps made of (50x6)mm M.S. Flat for holding the cable including nuts and bolts with stone Pad of size (300x300x75mm).

Fabrication and grouting of M.S. frames 3.60 mt. long for support of copper Bus Bar. Bus Bar will be provided in L.V. side of Power transformer. The M.S. frame shall be made of M.S. channel (100x50)mm in 'T' shape. Providing 2 Nos. support of M.S. Angle iron (50x50x6)mm, 0.60mt. long below the top channel, drilling of 3 Nos. hole on the top channel for fixing of 11 KV pin insulator. The M.S. frame shall be painted with one coat of primer & two coat of aluminium paint and grouting the frame in C.C. ratio 1:3:6 in a block of size (300x300x700) mm with stone Pad of size (300x300x75mm). The work also includes the fixing of 3 Nos. 11 KV pin insulator with pin and binding the copper Bus Bar with the pin insulator by Aluminium binding wire in complete.

Supply & Fabrication of copper bus bar of size (2500x50x6)mm in L.V. side of 10 MVA 33/11 KV, power transformer, Work includes connection of outside bus bar in L.V. side busing rod of Power Transformer and other side with outdoor 11 KV cable box as well as providing empire tape and H.T. tape etc. for proper insulation work.

Earthing of outdoor equipment, details as given below:- Making proper earthing of structure such as, L.A, P.I, Cable support structure, 33KV LA, Neutral link structure, Power T/F body (both side) by laying G.I.Strip size (50x6)mm for connecting the earth mat. The work also includes digging of earth, cutting, bending, tening, over laping and welding the earth strip with earth mat by using high quality are welding and paints of joints with black bituminous paint in already digged trenches.

Painting of G.I.Earth Strip of size (50x6) mm with two coats of ISI mark synthetic channel green paint.

Supply of G.I. Strip size 50x6mm for earthing of outdoor & indoor equipment

H.T. Power Cable Laying: Laying 11 KV, (3x300) mm2/(3x400) mm2 XLPE, Cable from power transformer to 11 KV incoming switch gear in the cable trench 0.45 m wide, 0.90m depth. Providing 150 mm local sand for cushion beneath and 150 mm above the cable (quality of local sand required 0.375 cum/m in length). The cable shall be dully protected by brick. On both side of cable by laying brick vertically and bricks would also be laid bricks along the cable (minimum 18 Nos. of bricks are to be laid top and outer side along the cable. The work includes digging of trenches, laying of cable in under ground trenches, joining of terminal's, back filling of earth and testing and commissioning of power cable etc. Spare cable shall be left over and laid in the trenches in shape of 6 m ring at both ends.

Laying and dressing of 11 KV 3x300 mm2/3x400 mm2 power cable in air/Trench.

Preparation of 11 KV Power Cable ends: Making of cable end termination by Heat shrinkable Out door jointing kits suitable for 11KV, 3x300Sq.mm XLPE cable. Suitable size cable Jointing Kit will be provided by department free of cost execution of work. Providing, fixing and crimping of proper size good quality lugs complete in all respect.

Making of cable end termination by Heat shrinkable indoor jointing kits suitable for 11KV, 3x300Sq.mm XLPE cable. Suitable size cable Jointing Kit will be provided by department free of cost execution of work. Providing, fixing and crimping of proper size good quality lugs complete in all respect.

Providing & Laying of 4x2.5mm2 control cables i.e. (approved by department) from Buchholz realy to Marshalling box Marshalling box to indication protection board in switch gear room, 33 KV CT's to CT's Junction Box, CT 33 KV, V.C.B. Control Panel Junction Box to 33 KV VCB control panel and control panel to 33 KV VCB outdoor operating mechanism panel from T/F etc. in the cable trench including making proper connection at Buchholz Relay, Marshalling box and indication board as per required for installed equipment.

Testing & commissioning of Power T/F and all 33KV & 11KV switchgears / Panels. providing required No. of technicians with proper testing equipments during commissioning & energisation.

Safe Loading, carriage & unloading of following stock material from any stores centres under PVVNL, depending upon the availability of material at Stores Centres, with loading & unloading at both ends respectively. 11 KV Cable

Control cable

11KV cable J/kit 3x185mm²

33KV Post insulator

Construction of S.S.Os. Approach Road-1.2M wide in switch yard by laying dry brick-ballast in 15Cm layer, 115mm thick brick work 1:4 in both side of edge, providing 10Cm thick CC in ratio 1:2:4. the work includes proper plastering top & side of road and making groove, leveling & dressing of earth beneath the brick work on edge.

Construction of fire protection wall of size 5.4Mtrx5Mtr (as per approved Drawing).

Painting of Structures Painting of the following structure with one coat of ready mixed primer and two coats of ISI Mark Aluminium paint after rubbing with sand paper to the surface of the structure including labour and T&P complete in all respect. Cable support structure and Neutral support structure, Copper bus bar M.S.Frames.

Dismenteling of M.S.Cable Support structure, Neutral link Structure & Copper Bus Bar Structure.

Safe carriage of old received back material from site to store including loading & unloading at both end.

VASUDEV ENTERPRISES