Increasing capacity of 33 KV Substation Kandhla Town in District Shamli

Safe carriage 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. i) 11KV XLPE cable 3x300mm²

ii) 33 KV Lightening Arrestor

iii) Control cable 2×2.5 mm² Mtr.

iv) Control cable 4×2.5 mm² Mtr.

v) M.S. Channel (100×50)mm

vi) MS Angle 65×65×6mm

vii) M.S. Round of 32 mm² for Delta Earthing

viii) Jointing Kit XLPE 300 mm² indoor

ix) Jointing Kit XLPE 300 mm² Outdoor

x) 33 KV Fuse Set

Hiring of D/G Set including carriage, loading, unloading & operating charges (with fuel) at 33/11 KV Substation under construction in case L.T. supply is not available near S/S within prescribed accessible limit. 63 KVA, Three phase, D/G Set for fabrication of different structure at Substation.

Dismantling of Existing ( 5 MVA-1 Nos ) Transformer Kept at suitable place outside switchyard i) 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.

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

iii) Disconnecting Earthing strip from body of (5 MVA-1 Nos ) Power transformer.

iv) Draining of transformer oil from conservator, radiators of existing ( 5 MVA-1 Nos ) Power transformer at 33/11 KV S/S, into the dry & clean drums and stacking at the safe place in Substation outside of switchyard. Empty drums shall be provided by contractor.

v) Removal of conservator, radiators and other accessories from existing ( 5 MVA-1 Nos) Power transformer.

vi) Safe Shifting of ( 5 MVA-1 Nos) 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 (Distribution).

vii) Re-assembling of conservator, radiators and other accessories to existing ( 5 MVA-1 Nos) Power transformer.

viii) Re-filling the transformer oil (old & used in existing ( 5 MVA-1 Nos) Power transformer

Miscellaneous Electrical works of Increasing Capacity of 33/11 KV Substation KANDHLA TOWN (Shamli) from (2×5) to (1×5+1×10) MVA. Installation of 33/11 KV, 10 MVA Transformer : i) Shifting of available 10 MVA 33/11 KV, Transformer to transformer plinth in Switch Yard.

ii) Erection of shifted Transformer at 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.

Providing and Erection 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 G.I. earth Strip for Transformer neutral connection, the earth strip will be welded to the G.I. pipe and neutral earthing support.

Fabrication and erection of neutral earthing L Type support made of M.S. Channel size 100×50mm. Structure shall be 4 Mtr. long with 1 Mtr. Arms. Structure shall be grouted in ratio 1:3:6 in block size 300×300×700mm 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.

Fabrication and erection of cable support made of two pieces of M.S. Angle (50×50×6)/65×65×6) mm, 2.75 meter long, joined to each other by means of 5 Nos. M.S. Flat (50×6)mm pieces of size 150 mm long each by welding at equal intervals and grouting in a block of size (300×300×700)mm in CC 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 (50×6)mm M.S. Flat for holding the cable including nuts and bolts.

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 (100×50)mm in 'T' shape. Providing 2 Nos. support of M.S. Angle iron (50×50×6)mm, 0.60 mt. 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 aluminum paint and grouting the frame in C.C. ratio 1:3:6 in a block of size (300×300×700)mm. 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 Aluminum binding wire in complete

Providing and Erection Fabrication of copper bus bar of size (2500×50×6)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.

H.T. Power Cable Laying : i) Laying 11 KV, (3x300)/(3×185) mm2 XLPE Cable from power transformer to 11 KV incoming switch gear and 11 KV incoming switch gear to Double pole in the cable trench and 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 single 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.

ii) Laying and dressing of 11 KV (3x300)/(3×185) mm2 power cable in air/Trench.

iii) Providing and Erection of Fixing 150mm dia 2mm thick 2M long G.I.Pipe over 11KV, 3x300Sq.mm XLPE Cable before mounting the 2No. Cable on cable support structure. Work includes fixing of all Clamp.

Preparation of 11 KV Power Cable ends: i) Making of cable end termination by Heat shrinkable Out door jointing kits suitable for 11KV, 3x300/3x185q.mm XLPE cable. Providing, fixing and crimping of proper size good quality lugs complete in all respect.

ii) Making of cable end termination by Heat shrinkable indoor jointing kits suitable for 11KV, 3x300/3x185Sq.mm XLPE cable. Providing, fixing and crimping of proper size good quality lugs complete in all respect.

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

Installation of 33 KV Lightening Arrestors ::- Assembling and installation/mounting of 3 Nos. lighting arrestors on the L.A.'s structure/terminal gantry, complete with earthing and line connections. The work includes fabrication for proper fixing, if required.

Installation of 33 KV Fuse Set with Structure: Assembling and installation of fuse set on the fuse set structure. The work includes fabrication for proper fixing, if required.

Earthing of outdoor equipment, details as given below:- Cutting of 32mm.dia M.S. Bar-3Mtr.long and making one end in conical shape by forging process and driving it into the earth at each corner of bridge in switchyard and proper welding with M.S.Bars.

Digging of Pits for making delta by laying 32mm. dia M.S.Round in tringle shape. Electric welding on cross joints by providing “U” Clamp in size 25×6mm. of M.S.Flat, with over lap joint by providing M.S.Round-12mm dia, on both sides of over lap joints of M.S.Round, by electric welding. All joints shall be painted with black bituminious paint.

Earthing of 33KV LA, Neutral link structure, Power T/F body (both side) by providing G.I.Strip in size 50×6mm. with 32mm. dia M.S.Round laid in trench with proper electric welding.

Control Cable Laying a) Laying of different size of (2×2.5)mm2 control cables i.e. from Buchholz realy to Marshalling box Marshalling box to switch gear room, 33 KV CT's to CT's 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 as per required for installed equipment.

b) Laying of different size of (4×2.5)mm2 control cables i.e. from Buchholz realy to Marshalling box Marshalling box to switch gear room, 33 KV CT's to CT's 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 as per required for installed equipment.

Repair of Plinth of Power T/F

SHASHI ENTERPRISES (BID ID -4722988)

M/s S.S. Refregeration (BID ID -4729852)

Hi-tech power transmission (BID ID -4714937)

NIRWAN ASSOCIATES (BID ID -4711847)