Tender For Augmentation of 400 kV substation Dhanonda, Nawada and Kirori-- 1 500 MVA,400/220/33kV, 3 Phase Auto Transformer excluding insulating oil 2 Insulating oil for 500 MVA,400/220/33kV, 3 Phase Auto Transformer (including 10% extra oil) 3 Digital RTCC Panel consist of digital RTCC relays 4 BDV testing Kit 5 Tool Kit 6 420kV circuit breakers (3 Ph.) with support structures 3150 A, 63 KA without closing resistor 7 420kv (6core) CT (1 Ph.)- for main bay & tie bayRatio- 3000-2000-500/1-1-1-1-1-1A, 63 KA 8 420kV Isolators (double break type)i) 3150A, 63 KA, isolator with one E/S 9 ii) 3150 A, 63 kA, isolator with both side E/S 10 336 kV Surge Arrester (Gapless), 63 KA 11 420kV Bus Post Insulator 12 400 KV C&R Panels (Simplex type)- SAS CompliantCircuit Breaker control panel without Auto Reclose and transformer Protection Panel (For HV side) with peripheral relay for bus bar protection on 400kV side. 13 Circuit breaker control panel with Auto Reclose and Tie protection panel with P.U. of future line bay 14 i) Extension of existing Fire Protection System (As per technical specification) for 500 MVA Auto-Transformer at 400kV sub-station as per site requirement is in the scope of bidder. 15 245 kV Circuit Breakers(3 ph)i) 2500 A, 50 kA 16 245 kV T/F I/C CT (1 ph) 50 kA with(I/C T/F CT ) (Ratio 1600-800/1-1-1-1-1A) 17 245 kV Isolator (3 ph) Double break2500A,50 kA,Isolator 18 220 kV Surge arrestors216kV, 50KA 19 245kV Bus Post Insulator 20 220 kV C&R Panels -SAS CompliantCircuit Breaker control panel without Auto Reclose for T/F I/C for 500MVA, 400/220kV T/F with peripheral relay for bus bar protection on 220kV side 21 220 kV C&R Panels -SAS CompliantCircuit Breaker control panel without Auto Reclose and transformer protection incomer panel (for LV side) with peripheral relay for bus bar protection on 220kV side 22 Supply and installation of 2 fittings of 240W LED lamps with all accessories for Complete lighting of outdoor Switch yard area including all accessories, cables etc. as per HVPNL Technical specification . 23 Power cables (XLPE & PVC) as per site requirements. 24 Complete substation automation system for 400/220 kV substations including hardware (along with transducers) & software, if required for present scope of work ( 1 no.500 MVA 400/220/33 kV T/F Bay(Refer Note 2 also) 25 Armoured copper control cables (PVC) of various sizes e.g. 7Cx4mm2, 4Cx4mm2, 2Cx4mm2, 2Cx6mm2, 3Cx2.5mm2, 7Cx2.5mm2, 10Cx2.5mm2 & 16Cx2.5mm2 and as specified in relevant technical specifications, with juction box for 400 kV & 220 kV side with associated accessories like clamps, PVC ferrules, glands, lugs, fibre cleat/aluminium clamp/bolt/washers etc. as per specification. 26 Dismantlement & re-erection of 220kV line Bay along with all material including equipments and support structures from A-8 to A-7 at 400KV Substation Kirori complete in all respect with disconnection of the existing cable & rewiring after erection, testing & commissioning with SCADA integration, PLCC wiring etc.a) 220 kV Circuit Breaker 27 b) 220 kV Current Transformer 28 c) Isolators 29 d) Isolators with Earth Switch 30 e) 220 kV CVT 31 f) 220 kV LA 32 g) 220 kV PI 33 h) 220 kV C&R Panel 34 i) 220 kV Wave Trap 35 j) 220 kV MK 36 k) All the above equipments alongwith associated support structures, jumpers, hardware fittings, conductor etc. as per site 37 Bolted type 400 kV Double tension string assembly with Silicon rubber Polymer Composite Insulators (E&M strength 120 KN) with all hardware accessories including ball & socket connection accessories for Twin Tarantulaconductor (string). 38 Bolted type 400 kV single suspension string assembly with Silicon rubber Polymer Composite Insulators (E&M strength 120 KN) with all hardware accessories including ball & socket connection accessories for Twin Tarantulaconductor (string). 39 Bolted type 220 kV single suspension string assembly with Silicon rubber Polymer Composite Insulators (E&M strength 90 KN) with all hardware accessories including ball & socket connection suitable for Twin Tarantula (string). 40 Bolted type 220 kV Single tension string assembly with Silicon Rubber Polymer Composite Insulators (E&M strength 90 KN) with all hardware accessories including ball & socket connections and tension clamp sets suitable for Twin Tarantula (string). 41 Earthing material – 40mm MS rod & G.I. earthing flat for connecting all the equipments with existing main earthmat, risers & independent earthing of T/F up to water level.Suitable arrangements as per actual site conditions shall be made to take care of 63kA fault level as per technical specification and IEEE-80. 42 Galvanized iron perforated tray with side coupler plate bolts, nuts, washers and clamps etc. of size 150x25x2 mm, 100x25x2 mm and 75x25x2 mm and G.I conduits of 50/100mm diameter from equipment to main trench as per technical requirement. 43 Clamps & connectors including equipment connectors, cable supporting angles/channels, cables, C-Wedge connectors, spacers, lug glands, firefighting equipment ,Junction box,Pipes for equipments and lighting, lighting PVC ferrules all accessories etc. as per GELO and specification. 44 4.5 IPS AI tube alongnwith all accessories e.g. welding sleeves, corona cap, terminal connector for BPI, inter connector, BPI etc. (all as per site requirement) 45 Tarantula Conductor 46 GS Earth wire (7/3.66) as per specification 47 U-bolt 20mm dia 48 Bay marshalling Kiosk with mounting structure for 400kV side (Front side with 350 tb for control circuit and rear side power circuit) 49 Bay marshalling Kiosk with mounting structure for 220kV side (Front side with 300 tb for control circuit and rear side power circuit) 50 Item for associated Structure work‘Lattice Type Steel Structure. Supply of material, preparation of fabrication drawing, galvanizing and delivery of lattice type steel structure for tower and beams for 400/220kV switchyard fabricated from steel conforming to IS:2062 including nuts-bolts gusset plates foundation bolts and other accessories as per drawings supplied by the owner.* For 220 kV Lattice Structure (Standard) mentionedbelow Although the equipment structures are standardized as mentioned below, however, in case specific requirement of fitment of structures is not met with these standardized 220KV structures in that case the Design & Engineering of the equipment structures for 220KV equipments (lattice type / pipe type, as applicable) shall be in in the scope of the successful bidder. Further, the Design & Engineering cost of these support structures shall also deemed to be included in the supply cost of these equipment structures.Main substation Tower and beamTower type AT-1 51 Tower type AT-3 52 Beam Type AB-1 53 400 kV Pipe Structures (Standard)CT (Drg. No. HTD/ST-197) 54 Isolators ( Drg. No. HTD/ST-196) 55 Surge Arrestor (Drg. No. HTD/ST-195) 56 BPI(Drg. No. HTD/ST-193) 57 220 kV Lattice Structure (Standard)CT (Drg. No. HTD/ST-147) 58 Isolators (Drg. No. HTD/ST-170) 59 BPI (Drg. No. HTD/ST-116 R3) 60 Surge Arrestor( Drg. No. HTD/ST-93 R) 61 LIST OF MANDATORY SPARES FOR 400kV DHANONDA, 400kV NAWADA and 400kV KIRORI420 kV SF-6 circuit Breakeri.One pole complete without closing resistor, grading capacitor (if applicable) complete with column and interrupter with MB & operating mechanism and without support structure 62 ii.SF-6 Gas (40% of ordered quantity) 63 iii.Trip coil with resistor 64 iv.Closing coil with resistor 65 v.Terminal pad and connectors 66 vi.Molecular filter for SF6 Ckt for 1 pole of CB 67 vii.Density /pressure monitor for SF-6CKt for 1 pole of ckt breaker 68 viii.Corona rings of each type 69 ix.Fixed moving and arching contacts including insulating nozzels for one pole of CB 70 x. Relays, power contractors, switch fuse units, limit switches, push buttons, timers and MCBs etc. (1 no of each type) 71 xi. Closing Coil assembly 72 xii. Trip Coil assembly 73 xiii. Set of control valves (of each type) 74 xiv. Pressure switches of each type ( 1 CB) 75 xv. Pressure Gauge with coupling device of each type 76 xvi. Aux contact assembly 77 xvii. Operation counter 78 xviii. All type of coupling for SF6 gas 79 xix. Rubber Gasket “O Ring” and seal (complete replacement for 1 phase of 420kV SF6 Circuit Breaker 80 Spring Operating Mechanism (if applicable)i. Complete Spring Operating Mechanism 81 ii. Closing Dashpot 82 iii. Opening Dashpot 83 iv. Opening Catch Gear 84 v. Closing Catch Gear 85 420 kV Double Break Isolatori. One complete pole with support insulators excluding structure & motor operating mechanism 86 ii. Copper contact fingers for female & male contacts 87 iii. Terminal pad with connectors 88 iv. Relays, power contactors, MCBs switch fuses, push buttons and resistors for electrical control ckt as per approved schematic 89 v. Timers. Key interlock, push button switch, limit switch, aux. switches, corona shield, motor having bearing assembly etc. 90 vi. Support Insulator 91 336 kV Surge Arresteri. 336 kV Surge Arrester complete with Insulating base and terminal connectors 92 ii. Surge Counters/monitors 93 Transformers protection panel sparesi. Transformers differential protection relay including all aux. CTs 94 ii. Restricted earth fault protection relay with non-linear resistor 95 iii. Back up for protection relay with 3 O/C and E/F element 96 iv. Over fluxing relay, if separate relay is provided in the approved C&R panel 97 v. Over load spare relay with timer, if separate relay is provided in the approved C&R panel 98 Substation Automation Systemi. Intelligent electronics device (IED) 99 ii. Set of each type optic fire cables of length of longest section used 100 iii. Set of connectors (one of each type) for optic fibre cables 101 iv. Ethernet switch 102 420 kV CT 103 245kV SF-6 CktBreakeri. One pole complete withof 2500 A CB with pole column and interrupter with MB & operating mechanism, grading capacitor (if required) and without support structure 104 ii. “O” rings, gaskets, Seals for operating mechanism 105 iii. Trip coil with resistor 106 iv. Closing coil with resistor 107 v. Terminal pad and connectors 108 vi. Molecular filter for SF6 Ckt for 1 pole of CB 109 vii. Density /pressure monitor for SF6 ckt for 1 pole of ckt breaker 110 viii.Corona ring of each type 111 ix. Fixed moving and arcing contacts including insulating nozzles for one pole of CB. 112 x. Relays, power contractors , switch fuse units , limit switches , push buttons m, timers and MCBs etc 113 xi. Closing Coil assembly 114 xii. Trip Coil assembly 115 xiii. Set of control Valve (of each type) 116 xiv. Pressure switches with (1 CB) 117 xv. Pressure gauges with coupling device of each type 118 xvi. Aux switch assembly 119 xvii. Operation counter 120 xviii. All type of coupling for SF6 Gas 121 Spring Operating Mechanism (if applicable)xix.Complete Spring Operating Mechanism 122 xx. Closing Dashpot 123 xxi. Opening Dashpot 124 xxii. Opening Catch Gear 125 xxiii. Closing Catch Gear 126 245 kV Double break isolatori. One complete pole of 245 KV 2500A Isolator along with support insulators & operating mechanism. 127 ii. Copper contact fingers for female & male contacts. 128 iii. Terminal pad with connectors 129 iv. Relays, power contactors, switch tests & push buttons 130 v. Motor with gear assembly and bevel gear assembly 131 vi. Hinge pins 132 vii. Corona shield rings 133 viii. Bearing 134 ix. Current Carrying assembly 135 x. Limit switch 136 216 kV Surge Arrester216 KV Surge Arrester Complete with Insulating base and terminal connectors 137 Surge Counters 138 220 kV T/F I/C CT 139 LIST OF MANDATORY SPARES FOR 500 MVA AUTO TRANSFORMER (AS APPLICABLE)Oil cooler pump with motor 140 Buchholz relay complete with float and contacts (main Tank) 141 Local & remote WTI complete with sensing device & contacts 142 Oil temperature indicators with contacts & sensing device 143 Pressure relief device 144 Magnetic oil level gauge 145 Cooler fan with motor 146 Starters, contactors, switches & relays for electrical control panels (one set of each type) 147 Set of valves (complete set for one transformer) 148 Fuses & MCBs ( one set complete for replacement for one transformer) 149 Oil sampling bottles (Stainless Steel, 1 Ltr) 150 Oil storage tank (15 KL) 151 Indicating Lamps (1Set consisting of complete replacement for one transformer). 152 Aux. Transformer for control of cooler control cabinet and OLTC (if applicable) 153 Breather assembly (one of each type ) for conservator and OLTC 154 Remote tap position indicator 155 Oil flow indicator with flow switch 156 Oil surge relay for OLTC 157 420kV Bushing with metal parts, gasket and lifting tools 158 245kV Bushing with metal parts & gasket 159 52kV Bushing with metal parts & gasket (if applicable) 160 Neutral Bushing with metal parts & gasket 161 Cartridge for Online insulating oil drying system. 162 1. FoundationsSupply of labour, T&P, material and construction of RCC footings & pedestals etc. for steel gantry and equipment structures complete in all respects as per technical specifications & drawings attached with the tender document including cost of excavation, concreting, cement, reinforcement steel, form work, grouting, holding down bolts, backfilling etc.and other items not mentioned herein but required for the completion of work. Surplus earth, if any shall be disposed off to a suitable place within the substation as per direction of engineer incharge without any extra cost. For 220kV Lattice Structure foundation*Although the equipment structures are standardized as mentioned at electrical BOQ (Section-1), however, in case specific requirement of fitment of structures is not met with those standardized 220KV structures in that case the Design & Engineering of the equipment structures along with the foundation for 220KV equipments (lattice type / pipe type, as applicable) shall bein the scope of the successful bidder. Also Design Engineering cost of foundationsshalldeemed to be included in the quoted rates.A. Gantry Towersi) AT-1 163 ii) AT-3 164 B. Equipment400 kV sidei) 400kV CT 165 ii) 400kV L&E/Isolator 166 iii) 400kV LA 167 iv) 400kV Post 168 220 Kv Side i) 220 kV LA 169 ii) 220kV CT 170 iii) 220kV Post 171 iv) 220kV L&E/Isolator 172 v) 220kV CVT 173 2. Breaker Foundation Design, engineering, supply of labour, material for construction of breaker foundations including all associated works such as PCC, RCC, structural steel, steel reinforcement, form work etc. or any other items not specifically mentioned herein but required for completion of work as per approved equipment(s) and technical specifications. Surplus earth, if any shall be disposed off to a suitable place within the substation as per direction of engineer incharge without any extra cost.i) 400 kV Circuit Breaker 174 ii) 220kV Circuit Breaker 175 3. Transformer Foundation i) Design, Engg., supply of labour, material and construction of T/F foundation including radiator foundations etc. complete transformer foundations including all associated works, RCC, PCC, Reinforcement steel, misc. structural steel and other items not mentioned herein but required for the completion of work as per technical specifications. In case additional foundation is/are required as per approved equipment drawing, the same shall be constructed by the successful bidder without any extra cost to HVPNL. Such drawing(s) shall, however, be got approved from HVPNL. Surplus earth, if any shall be disposed off to a suitable place within the substation as per direction of engineer incharge without any extra cost.500MVA,400/220/33kV T/F block foundation including radiator foundation and oil pitsystem etc. complete in all respect 176 4. OUTDOOR CABLE TRENCHESSupply of labour, material such as cement, reinforcement steel, GI angles, flats, PCC & brick pillars below cable trenches for construction of Out-Door Cable Trenches (ODCT) of required depth/ type with pre-cast RCC covers including associated works as per approved Trench layout plan, HVPNL drgs. & tech. specs. complete in all respect. Surplus earth, if any shall be disposed off to a suitable place within the substation as per direction of engineer incharge without any extra cost.i) D-Type Trench 177 ii) E-Type Trench 178 iii) F-Type Trench 179 iv) G-Type Trench 180 v) Trench Culvert 181 5. Site Surfacing5.1 PCC WITH GRAVEL (FRESH)Providing, supplying & laying 100mm thick PCC (1:4:8) using 20mm nominal coarse aggregates & spreading 100mm thick layer of 40mm nominal size uncrushed/crushed/broken stone/ pebbles over the PCC including construction of toe wall (exposed wall plastered with cement mortar 1:5) to hold 40mm size uncrushed/crushed/ broken stone/pebbles wherever required in the bays covered under the present scope as detailed in the GELO & instructions of engineer incharge. 182 5.2 ONLY GRAVELProviding, supplying & laying 100mm thick in two layers of 50mm each of 20mm nominal size uncrushed/crushed/ broken stone pebbles gravel fill including dressing, rolling & compacting complete in all respects as per specs. & instructions of engineer incharge. 183 5.3 PCC with existing gravelCollection, screening, cleaning & stacking of existing laid stone ballast (gravel) & laying 100mm thick PCC (1:4:8) using 20mm nominal coarse aggregates & re-laying the collected gravel in 100mm thick layer over the PCC including construction of toe wall (exposed wall plastered with cement mortar 1:5) to hold 40mm size uncrushed/crushed/ broken stone/pebbles wherever required in the bays covered under the present scope as detailed in the GELO & instructions of engineer incharge, only the gravel laid a fresh will be measured and paid. 184 6. RCC Antifire wallDesign Engineering & construction of RCC anti fire wall of suitable height & length between 500 MVA T/F and all associated works including supply of labour, material, cement, reinforcement steel, steel form work etc. as per technical specification. Surplus earth, if any shall be disposed off to a suitable place within the substation as per direction of engineer incharge without any extra cost. 185 7. AC Kiosk (RCC Framed Structure)Design, Engineering (architectural and structural drawings of AC Kiosk room), supply of labour, material and construction of AC Kiosk room on RCC framed structure including Anti-Termite treatment, plinth protection, electrification (Ceiling LED tubes with fitting, modular switches, boxes, AC, electric wire etc.), acrylic emulsion and weather proof (exterior acrylic paint),aluminum work (doors/windows/ventilators frames etc), false ceiling, floor finishing,indoor RCC cable trenches,double brick wall with 50mm thick glass/mineral wool insulation complete in all respect as per technical specification. Items, which are not mentioned but required for completion of work shall be provided by the successful bidder without any extra cost. Surplus earth, if any shall be disposed off to a suitable place within the substation as per direction of engineer incharge without any extra cost.i) 400 kV side 186 ii) 220kV Side 187 Dismantling of existing RCC trenches and Brick drainsDismantling including foundations of following structure. The material whatsoever shall be the property of the successful bidder. The dismantled material shall not be allowed for reuse at any of the sub-stations; however, HVPNL may allow use of bricks for brick ballast purpose only. Further, if rerouting of drain is required in present bays the same shall be is in the scope of successful bidder without any extra cost.8.1 Dismantling of existing RCC trenches and Brick drains
