PLANNING, DESIGN, ENGINEERING, SUPPLY, INSTALLATION, TESTING AND COMMISSIONING OF 2 X 7.5 MVA, 33/3.3 KV SUBSTATION WITH OPERATION and MAINTENANCE DURING DEFECT LIABILITY PERIOD (DLP) ON TURNKEY BASIS

Development Work and Infrastructure a) Survey, Soil investigation and collection of rainfall and hydrological data b)Site Development including Horticulture/ Plantation c) Back filling with all kind of soil in layers d) Levelling & dressing e) Substation Building f) Yard fencing with Gates g) Dyke wall h) Pebbling i) 3 mtrs & 5 mtrs Concrete roads j) LMV Parking Shed and Pavement for parking & pathway k) Drain, Hume pipe culvert l) Water supply & Sewage m) Underground sump n) Rain water harvesting n) DG shed o)Boundary wall around substation area 2 m high with concertina coil fencing at the top with gate

Civil(RCC) and Structural Steel Works a) RCC Cable Trenches b) R.C.C. Foundation for structural steel works c) Soak pits d) Structural Steel Work for installation of different outdoor equipment like isolators, transformers, breakers, CTs, PTs, lightning arrestors, Lighting mast, Gantry etc. e) Painting of Steel Works

Outdoor Switchyard Equipment Comprising the following 1(a). Suitable insulators to receive/terminate 33 kV incoming lines on towers/ steel structures provided with suitable anti climbing device – 2 sets 1(b). 33 kV busbar system complete with aluminium tubular bus suitable insulators (Post, disc), on towers/ steel structures – Lot 1(c). ACSR conductors/ aluminium tubular bus and suitable insulators for making inter connections between different equipment on 33 kV side - Lot 2. Lightning Arrestors, station class, 30 kV,10 kA, suitable for 33 kV, solidly earthed (each set consists of 3 nos.) with counters/surge monitors – 6 sets 3. Lightning Arrestors, station class, 3.3 kV,5 kA, suitable for 3.3 kV, solidly earthed (each set consists of 3 nos.) with counters/surge monitors – 2 sets 4. Isolator, 3 poles, outdoor type, motor operated, 33 kV, 1250 Amps, 25 kA, arrangement for interlocking with 33 kV Vacuum Circuit breaker – 6 sets 5. Isolator with earthing switch,3 pole, outdoor type, motor operated, 33 kV, 1250 Amps, 25kA, arrangement for interlocking with 33 kV Vacuum Circuit breaker – 4 sets 6. Isolator with earthing switch,3 pole, outdoor type, motor operated, 3.3 kV, 1250 Amps, 25kA, arrangement for interlocking with 33 kV Vacuum Circuit breaker – 2 sets 7. Isolator with earthing switch with DO Fuse, 3 poles, outdoor type, motor operated, 33 kV, 1250 Amps, 25 kA, arrangement for interlocking with 33 kV Vacuum Circuit breaker – 3 sets

8. Vacuum Circuit Breaker, 33 kV,1250 A, outdoor type, 13.1 kA with indoor type control and relay panel including instrumentation – 5 sets 9.Current transformer, 4- core, single phase, outdoor type, 33 kV, each set consists of 3 nos – 5 sets 10. Potential transformer, outdoor type, 100 VA each, 33 kV /110 V, for metering & protection, each set consists of 3 nos. -2 Sets 11. Power Transformer outdoor type plinth mounted 33/3.3kV, 7.5 MVA, ONAN cooled, DY-11 conforming to IS:2026 (current) having OFF-LOAD tap changer on HV side and LV neutral effectively earthed through required value of Resistance ( Restricted Neutral System) with all accessories including 33 kV remote control panel for on load tap changer as per IS:3639 (Current) with the rating as given below Rated MVA: 7.5 Rated Voltage(primary): 33 kV Rated Voltage(secondary): 3.3 kV Connection and vector group: Dy11 - 2 Sets 12. Neutral grounding resistor with relay protection for earth fault (Restricted Neutral system) for 33/3.3 kV transformer secondary neutral – 2 nos 13. 160 kVA Lighting Transformer, outdoor type, 33/0.433 kV, plinth mounted – 1 set 14. 100 kVA Lighting Transformer, outdoor type, 33/0.230 kV L-L, plinth mounted – 1 set

Indoor Equipment Comprising the following a) Indoor type remote control and relay panels including instrumentation for 33 kV Vacuum circuit breakers. - 5 sets b) 3.3 kV switch-board, indoor type, 18 panel, with vacuum circuit brakers, 2500amps for incomer and sectioniser and 630amps for outgoing panels 150 MVA symmetrical breaking capacity. All panels will conform to IS:3427 (Current) and relevant parts to IS:2516 ( current). - 1 set c) Capacitor bank, 3.3 kV indoor type of required capacity including APFC and relay panel, indoor type using contactors and other accessories - 2 sets d) LT Transformer indoor type rated as follows: Rated KVA: 1000 Rated Voltage(primary): 3.3 kV Rated Voltage(secondary): 415 V, Connection and vector group: Dy11 , plinth mounted- 1 set e) 415 V switch board, indoor type with 7 nos. ACB panel with 1 no. 800A incomer and 6 nos. 400A outgoing panels having O/L, S/C and E/L protection - 1 set f) Main Lighting Distribution boards, 230 V - 1 set g) Battery (110 V) lead Acid type, 200 AH and battery charging (with one stand bye battery charging unit) equipment, control panels, wooden racks etc. and DC Power distribution board, 110V, with all protections for supplying power to various installations - 1 set h) SCADA System - as mentioned in NIT (lot)

Earthing system 1. The outdoor switchyard shall have earthing net made of 40 mm dia MS rod, 65mm X 8mm GI flat and earth pits as required. There shall be separate grid for each i.e. system earthing, equipment earthing, earthing for shielding and nowhere it shall be connected to each other. Each grid should have minimum earth resistance value within the specified limit i.e. below 1 ohm. Earth pits shall be constructed with earth electrodes and chemical earthing compound - As per design 2. Earthing of boundary fencing consisting of earth pits, safe electrodes, grid conductors (Galvanised steel flats), saddles, required hardware (washers, nuts, bolts), earthing conductors etc - As per design 3. Required earth pits, safe electrodes, Galvanised steel flats, saddles, required hardware etc. for earthing of Transformer neutrals and Lightning arresters/lightning mast. - As per design 4. Earthing arrangement consisting of earth pits, safe electrodes, grid conductors (Galvanized steel flats) saddles to be provided around the substation building, earth conductors from the equipment - As per design 5. Required piping (at least 13 mm diameter), pipe fittings, valves, overhead tank etc. for arranging watering arrangement at earth pits - As per design

Lightning protection system a. Lightning protection system consisting of steel towers (Minimum 05 nos. of LM fixed towers), insulators, shield wires, down earth conductors, earth pits (Independent of the earth pits provided for earthing), safe electrodes, GI flats for connecting earth pits, hardware etc. for outdoor yard equipment from direct lightning strokes - As per deisgn b. Lightning protection system for substation building consisting of suitable number of spikes, interconnecting galvanized steel flats, down earth conductors, earth pits, electrodes, earth pit interconnecting galvanized flats, saddles, hardware etc - As per design c. Required piping, pipe fittings, valves etc. for arranging watering arrangement at earth pits - As per deisgn

Fire fighting system a. Firefighting system consisting of hydrant system (hydrant points, fire hose cabinets along with fire hose, pumps, pipes,pipe fittings etc), power supply arrangement for pumps etc. - As per design b. Fire and smoke detection and alarm system for switch room/control room for substation building and portable firefighting equipment for substation (Fire Extinguisher,Sand bucket etc.) - As per design c. Portable fire extinguishers (portable Co2 and dry type chemical powder fire extinguishers, trolley mounted dry type chemical powder fire extinguishers, sand buckets etc in the substation. - As per design