External Development Works at Science City at Tapesia village, Sonapur Circle, Guwahati. (PROVIDING RECEIVING STATION AND SUB STATIONS)

Amount

Supplying installation testing and commissioning of 11/0.4KV 400 KVA compact sub station withAPFC panel as details below:- *HT Switchgear (Compact Switchgear) *ackage substation will have the following equipments: 3 Way Non Extensible Unit with 2Nos. Isolators as Outgoing and 1No. Circuit Breaker as Incomer from 400 kVA Transformer – QTY: 1 No. TYPE Ringmaster: RN6C 3 Way, 11kV, indoor non extensible free standing metal clad SF6 insulated ring main unit type Ringmaster comprising of two numbers 630A fault making/ load breaking switches and one number 630A tee-off circuit breakers complete with all accessories as listed below: • Microprocessor based numerical relay for Circuit Breakers – Self Powered, VIP300 Relay. • The Ring Switches and Tee-Off Circuit Breaker are provided with Integrated Earthing Switches with making Capacity. • Live cable indicator for ring switches. • SF6 Gas pressure indicator. • Padlocking facility. *Transformer rating *11KV/433V, 400 KVA three phase, DYn11, +5% to - 5% off load tap, oil cooled type transformer with Cu winding and standard fittings. (Kotson’s/Danish/Shilchar/Eq.vt. make 3 phase 50 Hz 400 KVA DYn11, core type double wound with copper conductor oil immersed ONAN cooled distribution transformer with corrugated tank & hermetically sealed arrangement having a no load voltage ratio of 11KV/433V. Tapings +5% to –5% in steps of 2.5% shall be provided at line end of HV winding. Changing of taps shall be carried out by means of OFF Load Tap Changer. Temperature rise shall be 35/45 deg.C in oil/winding respectively over a maximum ambient of 50deg.C. The transformer shall be manufactured as per latest IS 2026. Accessory to be provided along with Transformer. - Oil Temperature Indicator - WTI. *LT Switchboard *C) 1 No. 433V, 630A LT devices with PVC sleeved Aluminium busbars. INCOMER - 1No. 4pole 630A manually operated fixed type MCCB with electronic trip release type. (50k OUTGOING - 1No. 4pole 630A manually operated fixed type MCCB with electronic release type with rotatory handle . (35/36 KA) for 150KVAR APFC Panel. 150KVAR, 440V, 3 Phase, 50 Hz, *Digital VAF Meter Type ELF3259 1 No. *Phase indicating Lamps. [R,Y,B] 3 Nos. *Current Transformer (250/5 3 Nos. *APFC Relay: 8-Stage, RT-08 1 No. *Fans 1 No. *Control Transformer 1 No. *For 25 KVAR X 5 +2x10KVAR+1x5KVAR STEPS *63 A TP MCB of 10 KA breaking capacity.. 5 Nos. *Capacitor Duty contactor-25 KVAR 5 Nos. *63\\40 A TP MCB of 10 KA breaking capacity.. 2 Nos. *Capacitor Duty contactor-10 KVAR 2 Nos. *20 A TP MCB of 10 KA breaking capacity.. 1 Nos. *Capacitor Duty contactor-5 KVAR 1 Nos

Supplying installation testing and commissioning of 11/0.4KV 630 KVA compact sub station withAPFC panel as details below:- *HT Switchgear (Compact Switchgear) *11kV, 630A, 21KA for 3 Sec, SF6 insulated Non-Extensible Compact switchgear (Type consisting of Two Nos. Fixed Manual Load Break Switch and One No. Fixed Manual Vacuum Circuit Breaker in SF6 with insulated stainless steel enclosure, with series trip, self powered microprocessor based numerical relay for over current and earth fault (IDMTL + Inst.) protection. Interconnection (or equivalent as approved by the Deptt.) between HT switchgear and transformer shall be using 1Cx3x95 sq.mm Al. unarmorured XLPE Cable. *Transformer rating *630kVA, 11/0.433 kV, Dyn11 with off circuit tap of rating +5 to -5 @ 2.5%. (Oil Type) - Danish/ Kotsons / Nucon (Dry Type) - Voltamp / Danish / Raychem/ ABB(case to case) LT Switchboard *1000A 3P 50kA Fixed Manual ACB with Microprocessor based O/C, E/F, S/C release as incomer cum outgoing. *With Dry type Transformer *"N.B. :-Package Sub-station will be complete with the internal interconnection (or equivalent as approved by the Deptt.) & earthing. Accessories required for the external connection (or equivalent as approved by the Deptt.) of HT & LT cables like termination kits , lugs , glands etc & extending of earth bar to earth pits is included in the scope of work. Civil work for package substation is extra to be paid separately."

Supplying installation testing and commissioning of 11/0.4KV 250 KVA Outdoor type package substation with APFC panel as details below:- Outdoor type package substation with facility for internal lighting, earthing, padlocks etc. connection (or equivalent as approved by the Deptt.) between RMU & transformer will be by 3 nos. 1Cx95 sq.mm. Aluminium XLPE cable and connection (or equivalent as approved by the Deptt.) from transformer to LT ACB will be by Aluminium busbar connection (or equivalent as approved by the Deptt.). *HT Switchgear (Compact Switchgear) *""RMU-NON-Extensible (2 isolators (C), 1 Vacuum circuit breaker(T2), al busbars, make -SCHNEIDER/ABB/SIEMENS/ CROMPTON JUNCTION Type:- 3 position Disconnection (or equivalent as approved by the Deptt.) and Earthing switch equipped with separate drive unit. 1. Operation of LBS- Manual. 2. Cable Switch Rating- 12KV, 630A, 21 KA/3 sec. 3. Cable Bushing Rating- 630A, 4. Cable Cover:- As per Company standard, 5. Fixed type Capacitive voltage indication, 6. On/Off/EARTH Switch via MIMIC, 7. Bottom Cable Termination- Suitable up to 300sq. mm. , "T2 FUNCTION Type:- 3 position Disconnection (or equivalent as approved by the Deptt.) and Earthing switch equipped with separate drive unit. T2 equipped with over current time release for transformer protection. 1. Vacuum circuit breaker 12 kV, 630A, 21 KA/3 sec. 2 Operation of breaker – MANUAL 3 Self Powered Electronic numerical protection relay providing over-current & earth fault protection – relay. 4 Ring core protection current transformers. 5 Aux. contacts for VCB. ( 2 no + 2nc ) 6 Capacitive voltage indication fixed type. 7 ON, OFF, TRIP indication on the front mimic of the panel. 8 Cable box for termination of cable up to 1 No. x 300 sq. mm. 9 Cable cover standard. 10 Emergency trip push button. 11 Shunt trip coil – 230 V AC. *Transformer rating" "TRANSFORMER (Manufactured as per IS 2026), TYPE:- ONAN, Hermetically sealed. make -Kotsons/Danish/Nucon/Schneider 1. Ratio- 11KV/433V, 2. Capacity:- 250 KVA, 3. Vector Group- DYn11, 4. Off Load Tapings-+/-5% in steps of 2.5%, 5. Winding- Double wound copper, 6. Class of Insulation- A, 7. Ambient Temperature- 50Deg C, 8. Temperature rise in winding over ambient- 50Deg C, 9. Temperature rise in oil over ambient- 40Deg C, 9. Max losses at 50% loading - 1050 watts 10. Max losses at 100% loading - 3320 watts 11. Impedance - 4.5% ( IS tol applicable) " "Transformer Accessories *Winding Temperature indicato *Oil Temperature indicator *LT Switchboard *LT BUSBARS- ALUMINIUM, Voltage Rating- 433V , Current Rating- 400 A , R/Y/B indicating lamps 3, LT PANEL Incomer MCCB, 400 A, 4 Pole , 50KA, manual fixed microprocessor based over current, short circuit and earth fault release Type with earth fault module. make -SCHNEIDER/ABB/SIEMENS/ CROMPTON 1no. On, OFF, TRIP lamps - Provided. make -SCHNEIDER/ABB/SIEMENS/ CROMPTON 3 nos. OUTGOING:- 4 Nos. 4P 200A manually operated fixed type MCCB with TMD release (35/36 KA) 1 No. 3 pole 250A manually operated fixed type MCCB with TMD release (35/36 KA) for APFC Panel. *APFC PANEL- 85 KVAR *Incomer:200 A, 3P, 36KA,TMD based MCCB, make :SCHNEIDER/ABB/SIEMENS/ CROMPTON *Digital VAF Meter make : SCHNEIDER/ABB/SIEMENS/ CROMPTON *Phase indicating Lamps. [R, Y, B] make : SCHNEIDER/ABB/SIEMENS/ CROMPTON *Current Transformer-200/5A, Cl-1 10VA make : Kappa/Precise *On/Off Indication Lamp make : SCHNEIDER/ABB/SIEMENS/ CROMPTON *Control Transformer. *Fans make : Hicool" "Capacitor type - VarplusCan Capacitor @440V *mode - Auto *Steps :- 10 KVAR – 3 STEPS *Step protection -25 A, 3P, 10Ka , MCB *Capacitor Duty Contactor - 10 KVAR *Steps :- 15 KVAR – 1 STEPS *Step protection - 32 A, 3P, 10Ka , MCB *Capacitor Duty Contactor - 15 KVAR *Steps :- 20 KVAR – 2 STEPS *Step protection - 50 A, 3P, 10Ka , MCB *Capacitor Duty Contactor - 20 KVAR *APFC Cable - *ENCLOSURE- *HV KIT *EARTHING - ALUMINIUM *TROLLEY *COPPER FLEXIBLE" "N.B. :-Package Sub-station will be complete with the internal interconnection (or equivalent as approved by the Deptt.) & earthing accessories required for the external connection (or equivalent as approved by the Deptt.) of HT & LT cables like termination kits , lugs , glands etc & extending of earth bar to earth pits is included in the scope of work. Civil work for package substation is extra to be paid separately.

HT CABLE *Supply and laying 11/33 KV HT 3 core Stranded compact Circular Aluminium Conductor, Conductor Screen With Extruded Semi Conducting compound, XLPE Insulated, Insulation Screening with truded Semi Conducting compound in combination with Copper Tape (0.3kA for 1 se , cores laid up, inner sheath of PVC tape, galvanised flat steel strip armoured and overall PVC Sheathed cable conforming to IS 7098 / (PART-I 1985 with latest amendment cable laid in air or through existing cable trench/ duct/ cable tray/ HDPE pipe including fitting required size of lugs at the both end of the cable by using crimping tool and making good damaged done as specified and directed by the deptt. (Nicco/ Havells/ RPG/CCI/Polycab/Gloster/ Finolex make) . " *300 sq mm 3 Core armoured 11 KV H.T. U.G. cable

LT CABLE *Supply and laying of following size Solid Aluminium conductor up to 10 sq mm balance stranded conductor, XLPE Insulated, cores laid up, PVC tape inner sheathed, unarmoured/Armour (Aluminium for single core up to 70 sq mm balance Aluminium strip, Galvanised for cables up to 2x10 sq mm.3x10 sq mm,4x6 sq mm balance all galvanised steel strip) , extruded PVC Type ST2 sheathed, 650/1100V grade as per IS 7908(Part 1) 1988 laid in air or through existing cable trench/ duct/ cable tray/ HDPE pipe including fitting required size of lugs at the both end of the cable by using crimping tool and making good damaged done as specified and directed by the deptt. (Nicco/ Havells/ RPG/CCI/Polycab/Gloster/ Finolex make) . " *185sq mm 3 and 1/2 core armoured cable

LT CABLE *Supply and laying of following size Solid Aluminium conductor up to 10 sq mm balance stranded conductor, XLPE Insulated, cores laid up, PVC tape inner sheathed, unarmoured/Armour (Aluminium for single core up to 70 sq mm balance Aluminium strip, Galvanised for cables up to 2x10 sq mm.3x10 sq mm,4x6 sq mm balance all galvanised steel strip) , extruded PVC Type ST2 sheathed, 650/1100V grade as per IS 7908(Part 1) 1988 laid in air or through existing cable trench/ duct/ cable tray/ HDPE pipe including fitting required size of lugs at the both end of the cable by using crimping tool and making good damaged done as specified and directed by the deptt. (Nicco/ Havells/ RPG/CCI/Polycab/Gloster/ Finolex make) . *300 sq mm 3 and 1/2 core armoured cable

LT TERMINATION *SUPPLYING FITTING AND FIXING OF (DOWELLS/ COMET make) ALUMINIUM alloy tubular bimetallic terminal. Size: " *ALUMINIUM alloy tubular bimetallic terminal. Size: 185

LT TERMINATION *SUPPLYING FITTING AND FIXING OF (DOWELLS/ COMET make) ALUMINIUM alloy tubular bimetallic terminal. Size: " *ALUMINIUM alloy tubular bimetallic terminal. Size: 300

HT TERMINATION *Supply including fitting and fixing of 11 KV ( SCREENED XLPE cables heat shrink type three core HT cable outdoor termination Kits RAYCHEM RPG including all accessories for the following sizes including testing and commissioning as specified and directed by the Deptt." *300.00 to 500.00 Sq.mm., 1 Core cable.

Supply, installation,testing and commissioning of HT metering cubical panel as approved by DISCOMS fabricated out of 14 SWG CRCA sheet steel in two compartments & ms angle of size 60mmx60mm having provision for following: *(i)Provision for fixing trivector meter to be supplied for DISCOMS *(ii) Provision for fixing of combined CT/PT set( to be supplied by DISCOMS) *(III)TT block *(Iv)6mm thick bakelite shall be on all side *(v) 3/6 core copper cable for interconnection etc as required

Supply installations of 11kv 630A 25 ka/sec SF6/VCB Indoor type panel as incomer to metering panel with all necessary protections in E/F, OL/ SC etc

Supplying installation testing and commissioning of 11KV, 21KA, 4 WAY RMU Type Ringmaster : RE6c+CE6 – 1No. as specified below • RE6c: Single extensible RMU consisting of 2Nos 630A Load break switches and 1 No. 630A Tee-Off with SF6 Circuit Breaker and with O/C + E/F relay type VIP300 with SF6 gas pressure indicator. • CE6: Single extensible RMU consisting of 1 No. 630A SF6 Circuit Breaker and with O/C + E/F relay type VIP300 with SF6 gas pressure indicator. • VIP 300: Self powered Static type Relay with series Tripping Coil suitable for over current and Earth Fault protection • FPI Flair 22D one LBS. Ratings: Rated Voltage: 11kV Rated STR: 21kA/ 1 Sec Rated Busbar Current: 630 A Dimensions:- Length:-1392, Depth:-960, Height:-1630 comprising of the following material:" *Each Load break switch will have the following: - Manually operated 630A Load Break switch and Earthing Switch with making capacity. - Mechanical On/Off/EARTH Indication. - Cable Testing facility without opening the cable compartment and without disconnection (or equivalent as approved by the Deptt.) the cable terminations. - Live Cable “ Indicating LEDS energized thru Capacitive Voltage Dividers. - Cable box suitable for cable termination of 1 no. 3Cx 300 sq.mm. PILC/XLPE cable. - Right angle boots eqvt to TP 300 of MECP make (Push on type). Each Circuit Breaker will have the following: - Manually operated 630A SF6 circuit breaker and Earthing Switch with full making capacity. - Anti reflex operating handle. - Shunt Trip coil (230V AC) for external trip signal. - Self powered O/C + E/F relay type VIP300. - Mechanical On/Off/EARTH Indication. - Live Cable “ Indicating LEDS energized thru Capacitive Voltage Dividers - Cable box suitable for cable termination of 1 no. 3Cx 300 sq.mm. PILC/XLPE cable. - Right angle boots eqvt to TP 300 of MECP make (Push on type).

Supply, installation & testing of G.I. Plate earth station with 600 mmx600 mmx6 mm heavy duty G.I. earth plate with necessary 40 mm dia. G.I. watering pipe with G.I. Fittings such as Socket, Tee, elbow, nipple and 50 mmx40 mm G.I. reducing socket for funnel including locking arrangement with 300 mmx300 mmx6 mm hinged cover C.I. cover plate complete with digging of earth pit, construction of brick chamber and plastering of both inner & outer surface of wall as specified and directed by the deptt .

Extra for using salt (5 K and Charcoal (96 K in G.I./Copper plate Earth Station pit to provide low impedance ground in location of high soil resistivity as and when required and specified by the deptt .

Supplying & laying of following size G.I. strips drawn on surface from earth electrode to Electrical switch gears, machineries etc complete with supply of G.I. nuts & bolts, screws etc including riveting, soldering & making necessary connection as approved, specified and directed by the deptt.

Supplying including installation, testing and commissioning of Vermin and dust proof totally enclosed cubical type compartmentalize floor mounting panel board (IP 43) of size 2.00 M(B) x 2.00 Mx 0.80 M made of 16 SWG (1.66mm) thick C.R/ G.I. sheet and 100mm x 50mm x 5mm size channel at the bottom and C.R. sheet/ G. I. sheet roofing on the top with powder coated paint. The panel board is to be erected in 1:3:6 PCC foundation including excavation of trench and brick soiling etc. complete & neatly wiring done and provision for one no 4 pole Air Circuit Breaker type (MDO/EDO) with guide frame as incomer and 8 Nos. TPN SDFU/MCCB as out going as specified and directed by the deptt. comprising of the followings. *1. 40mm x 10mm 4 strip copper Bus - Bar 1.30 M length each *2. 30mm x 5mm 4 strip copper Bus-Bar 0.5 M each 8 sets *3. Panel mounted multifunction meter with 3 lines LCD display = 1 No. (HPL basis) *4.Poilt Lamp with integral lead 110- 230 V = 3no. (Red, Yellow,& Blue) (GE make Cat No.PL) *(Incoming and outgoing Switch Gear of reqd. rating will be measured and paid separately)

Supplying including installation, testing and commissioning of Vermin and dust proof totally enclosed cubical type compartmentalize floor mounting panel board (IP 43) of size 2.00 M(B) x 2.00 Mx 0.80 M made of 16 SWG (1.66mm) thick C.R/ G.I. sheet and 100mm x 50mm x 5mm size channel at the bottom and C.R. sheet/ G. I. sheet roofing on the top with powder coated paint. The panel board is to be erected in 1:3:6 PCC foundation including excavation of trench and brick soiling etc. complete & neatly wiring done and provision for one no 4 pole Air Circuit Breaker type (MDO/EDO) with guide frame as incomer and 8 Nos. TPN SDFU/MCCB as out going as specified and directed by the deptt. comprising of the followings. *1. 50mm x 10mm 4 strip copper Bus - Bar 1.30 M length each *2. 30mm x 5mm 4 strip copper Bus-Bar 0.5 M each 8 sets *3. Panel mounted multifunction meter with 3 lines LCD display = 1 No. (HPL basis) *4.Poilt Lamp with integral lead 110- 230 V = 3no. (Red, Yellow,& Blue) (GE make Cat No.PL) *(Incoming and outgoing Switch Gear of reqd. rating will be measured and paid separately)

Supplying including installation, testing and commissioning of Vermin and dust proof totally enclosed cubical type compartmentalize floor mounting panel board (IP 43) of size 2.00 M(B) x 2.00 Mx 0.80 M made of 16 SWG (1.66mm) thick C.R/ G.I. sheet and 100mm x 50mm x 5mm size channel at the bottom and C.R. sheet/ G. I. sheet roofing on the top with powder coated paint. The panel board is to be erected in 1:3:6 PCC foundation including excavation of trench and brick soiling etc. complete & neatly wiring done and provision for one no 4 pole Air Circuit Breaker type (MDO/EDO) with guide frame as incomer and 8 Nos. TPN SDFU/MCCB as out going as specified and directed by the deptt. comprising of the followings. *1. 100mm x 5mm 4 strip copper Bus - Bar 1.30 M length each *2. 30mm x 5mm 4 strip copper Bus-Bar 0.5 M each 8 sets *3. Panel mounted multifunction meter with 3 lines LCD display = 1 No. (HPL basis) *4.Poilt Lamp with integral lead 110- 230 V = 3no. (Red, Yellow,& Blue) (GE make Cat No.PL) *(Incoming and outgoing Switch Gear of reqd. rating will be measured and paid separately)

Supplying with fitting and fixing panel mounting open execution 4 pole Air Circuit Breaker type (MDO/EDO) with guide frame and 4 standard auxiliary contacts in the existing cubical panel board of the following capacity complete with making necessary connection as specified and directed by the deptt. (ABB Emax/L & T U Power/ Siemens 3 WL/ Schneider Master pact NW) *800A Breaking capacity @ Ics = 50 KA (EDO)

Supplying with fitting and fixing panel mounting open execution 4 pole Air Circuit Breaker type (MDO/EDO) with guide frame and 4 standard auxiliary contacts in the existing cubical panel board of the following capacity complete with making necessary connection as specified and directed by the deptt. (ABB Emax/L & T U Power/ Siemens 3 WL/ Schneider Master pact NW) *1000A Breaking capacity @ Ics = 50 KA (EDO)

Supplying with fitting and fixing panel mounting open execution 50KA 415V 50Hz 4P MCCB (Ics=Icu, adjustable Ir setting 0.5-1, neutral adjustable with earth fault protection and with rotary handle Without enclosure of the following capacity complete with making necessary connection as approved, specified and directed by the deptt. *50 KA 415V 50 Hz 4P MCCB (Schneider, legrand, Siemens make) *400A

Supplying with fitting and fixing panel mounting open execution 50KA 415V 50Hz 4P MCCB (Ics=Icu, adjustable Ir setting 0.5-1, neutral adjustable with earth fault protection and with rotary handle Without enclosure of the following capacity complete with making necessary connection as approved, specified and directed by the deptt. *50 KA 415V 50 Hz 4P MCCB (Schneider, legrand, Siemens make)" *630A

Supplying with fitting and fixing panel mounting open execution 50KA 415V 50Hz 4P MCCB (Ics=Icu, adjustable Ir setting 0.5-1, neutral adjustable with earth fault protection and with rotary handle Without enclosure of the following capacity complete with making necessary connection as approved, specified and directed by the deptt. *50 KA 415V 50 Hz 4P MCCB (Schneider, legrand, Siemens make) *800A

Supplying with fitting and fixing panel mounting open execution 50KA 415V 50Hz 4P MCCB (Ics=Icu, adjustable Ir setting 0.5-1, neutral adjustable with earth fault protection and with rotary handle Without enclosure of the following capacity complete with making necessary connection as approved, specified and directed by the deptt. *50 KA 415V 50 Hz 4P MCCB (Schneider, legrand, Siemens make) *1000A

Supplying, laying of HDPE Pipe /DUCT IS 4984: 1995 as required in the existing trench, through micro tunneling, as directed and specified by the department. *110 mm PE100 GRADE PN10

Perforated HT 76 mm SIDE WALL HEIGHT HEAVY DUTY cable TRAYS HOT DIP GALVANIZED WITH SPLICE, HT 76 SET UPTO 304 mm WIDE, SPLICE, HT 76 SET UPTO 457 mm AND 609 mm WIDE *Size of Tray *457

M38 AND HT76 cable TRAY COVERS HOT DIP GALVANIZED 19mm SIDE WALL HEIGHT WITH COVER FASTENER U NUT AND SCREW. *Size of Tray cover *457

Nabin Chandra Hatimuria