Up gradation of Existing Electrical Substation equipments including replacement of old Transformers and associated HT Switchgears at CSIR-IICB, Jadavpur Campus.

Amount

Sub Head I: HT Panel

Supply, Installation, Testing and commissioning of floor mounted indoor cubicle type, factory assembled, dust and vermin proof, fully segrigated and compartmentalized, 11KV, 50Hz, VCB panel (1 No. Incoming and 3 Nos. Outgoing) with single panel VCBs, totally enclosed , trolley mounted, horizontal type breaker having capacities mentioned below. It should be single break , trip free mechanism , Electrically charged and Electrically closed breaker suitable for use on 11KV,3 phase, 50Hz AC supply with short circuit fault level 26.3KA for 3 seconds and internal arc capacity of full STC for 1 sec complete with self contained , fully interlocked , rack in and rack out mechanism with 630A @ 40°C ambient. Silver Plated / Tinned, High conductivity electrolytic Copper Rectangulr Bus Bar with Heat shrinkabale PVC Sleeve with joints having full voltage soft PVC shroude Short time rating for 1 sec. :26.3kA. The breaker featured with contrl wiring (Control Voltage 110 VDC), mechanical On/Off indicator, spring release coil, shunt trip coil and auxiliary contacts 5NO+5NC, and equipt with following switchgear accessories complete as required.

Circuit Breaker (for incomer and Outgoings) : 630A, 3P, Vaccum Circuit Breaker Trolley mounted fully drawout, SC Breaking capacity-26.3KA for 1 Sec. System Voltage - 11KV, Rated Voltage - 12 KV, Closing Coil- 110V DC , Triping Coil- 110V DC, Spring Charging Motor- 230V AC, Contact- 5NO+5NC. With Test and Service limit Switch Actuator

Bus Bar: Rated Current : 630A @ 40°C ambient. Material : Silver Plated / Tinned, High conductivity electrolytic Copper Rectangulr Bus Bar sleeve: Heat shrinkabale PVC Sleeve etc. complete as required.

Current Transformer : Single phase, Cast resin, Dual core , CTR- 630/1+1A; Core-1: 15VA Class-0.5 for Metering ; Core-2: 15VA Class-5P20 for Protection

Potential Transformer: Three phase, Draw Out type, Dual Core with Fuse , PTR: -11KV/√3 / 110V/√3, Cl-0.5, 100VA , Core 1 - Class - 1 for Metering , Core -2 - Class PS for Protection

Relays: (a) Incomer- (i) Flush mounted, Drawout, Numerical and multifunctional (with 3:O/C , 1:E/F & 3:VT I/P) with self & remote monitoring features Communication port : RS232 for local pc and RS485 for remote operation Comm. Protocol : MODBUS Memory : Inbuilt memory capable of registering relay fault and disturbance (at least 25 fault records and 75 events records each with 1 mSec accuracy) with waveform during fault. RTC : in-built. Display : LCD type , Relay Auxiliary Supply - 110VDC . (ii) Master Trip Relay, Aux Supply- 110V DC. Flush mounted. 2NO+2NC, Hand Reseting Type. (iii) Trip Circuit Supervision Relay, Aux Supply- 110V DC. (b) Outgoings- (i) Flush mounted, Numerical 3 Phase O/C & E/F Relay with RS485 for remote operation Comm. Protocol : MODBUS , Relay Auxiliary Supply - 110VDC . (ii) Master Trip Relay, Aux Supply- 110V DC. Flush mounted. 2NO+2NC, Hand Reseting Type (iii)Trip Circuit Supervision Relay, Aux Supply- 110V DC (iv) Auxiliary Relays for Transformer Faults , Aux Supply- 110V DC

Power Pack with battery back up , Input voltage - 110VAC from PT , output voltage - 110VDC , VA burden - 100Watt with 10 mints battery back up for operating close-trip coil of VCB and other essential loads like protective relays, alarm annunciator complete as required.

Auxillaries: (i) Space Heater with Thermostat. (ii) Panel Illumination Lamp 5W CFL / LED, 230V AC (iii) Buzzer , 110VDC ( For fault alarm) (iv) Buzzer , 230VAC ( For DC Fail) (v) Programmable 12 Window Alarm Annunciator for Transformer WTI Alarm & Trip, OTI Alarm & Trip Bucholz Alarm & Trip , MOG Alarm , PRV Trip complete as required.

Sub Head II: Transformer :

Supply , Inatallation , Testing and Commissioning of Outdoor type, 1000KVA, 11/0.415KV , 3Ph, 50Hz, Vector Group- Dyn11, AN - Air Natural Cooled ( Cast Resin Dry Type ) , Copper Wound Transformer as per IS 11171, IEC 60076-11 and comprising of the followings- (i) Off Circuit Tap Changer having voltage variation range of +5% to -5% in steps of 2.5% (ii) Class of Insulation : Class F - Allowable Temperature Rise 90 Deg.C. over an ambient of 50 Deg. C as per IS. (iii) Coil shall be casted with Resin (iv) Core Material : C.R.G.O. M-4 with Full Mitred Joint Construction. (v) Winding : Material shall be E.C. Grade Copper and HV & LV winding shall be foil type (vi) Impedance : 5% (vii) Effeciency: > 98% at UPF. (viii) Losses: as per ECBC 2009 Guide line. (ix) Suitable Cable Entry Box at primary and suitable Box for Bus Trunking at Secondary. (x) Diagram and Rating Plate (xi) Digital temperature Scanner with Alarm & trip with RTD Type Sensor (xii) Suitable for Outdoor Installation. (xiii) Test: Routine Test as per I.S 11171-1985 ( At Manufacturer's site) The job is inclusive of making of the foundation suitable for the abvove mentioned Transsformers as per Standard Engineering Practice and as per site condition.

Sub Head III: HT Cabling:

Supplying of 3 Core x 240sqmm, Unearthed (UE), Round armoured, aluminium conductor 11kV HT XLPE cable.

Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 11 KV grade of following size direct in ground including excavation, sand cushioning, protective covering and refilling the trench etc as required.

Above 120 sq. mm and upto 400 sq. mm

Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 11 KV grade of following size in the existing RCC/ HUME/ METAL pipe as required.

Above 120 sq. mm and upto 400 sq. mm

supplying and making indoor cable end termination with heat shrinkable jointing kit complete with all accessories including lugs suitable for following size of 3 core, XLPE aluminium conductor cable of 11 KV grade as required :

Sub Head IV: Bus Trunking

Supply , Inatallation , Testing and Commissioning of 1600A , 415V AC (± 10%) , 3 Phase , 50 HZ, TPN, with Short Circuit Capacity 50KA for 1 second, Air Insulated type , Phase Non Segregated Bus Bar Trunking having aluminium alloy bus bars of high conductivity electrolytic grade maintaining the gaps between the conductors as per IS standard followed by DMC/SMC bus bar supports of suitable size and quantities consisting enclosure of 2 mm Thick CRCA sheet steel complete with 7 tank process for powder coating in approved shade, IP 55 for indoor installation and IP 67 with canopy for outdoor part as required. The temperature rise of the busbars and main bus link including all power draw out contacts should not exceed 50⁰C when carrying 90% of the rated current. The Bus Trrunking shall be completed with following features and accessories

a)Silica gel breathers at appropriate locations shall be provided. b)Supply and erection of Painted MS supporting structure with necessary hardwares complete as required. c)Rubber Bellows of suitable thickness as per standard shall be provided at one end or both ends as per requirement to take care of vibrations. d) Braided Copper Flexible of suitable size maintaining rated current of the bus duct as per standard shall be provided at one end or both ends as per requirement. e) Phase Crossover Chamber shall be provided if required. f) Wall frame assembly shall be provided. g) Adaptor Box at both the ends or at single end shall be provided as per necessasity.

Sub Head V: LT Panel

Supply, erection, testing and commissioning of Floor Mounted cubicle type factory assembled, dust and vermin proof, fully segrgated and compartmentalized LT Panel suitable for 415 V, 50 Hz. AC having protection of IP 42 or above. The Cubicle shall be made of fixed type bolted steel structure of heavy gauge pressed sheet steel (CRCA) and having minimum thickness of 2 mm for frame work and covers, 3 mm for gland plates with rubber gaskets at all joints and openings, including doors. The Panel shall be finished with powder coating paint ( Siemense Gray Shade) after 7 tank process. The Panel shall be competed with all necessary accessories ( like control Relays, MCBs, Terminals etc.) complete as required. The Panel shall be comprising of the followigs- (Please refer Single Line Diagram and other Tender Documents)

1. Incoming Section : (A) For Transformers (To be connected with Air insulated Bus Trunking): (i) 2 Nos. 2000 Amps ,Four Poles (all poles rated100% at Ambient Temperature of 50 Deg. C), EDO Type Air Circuit Breakers ( ACB) of fault breaking capacity 65KA (Ics=Icu), Electrically operated, fitted with interlocked door, automatic safety shutters, mechanical ON/OFF and service/test/isolated position indicators and frame earthing contact, conforming to IS-13947- 2 1993 as amended up-to-date complete with following accessories complete as required. (a) Under Voltage Release. (b) Independent Automatic and Manual spring closing mechanism. (c) Microprocessor release (EMI & EMC certified) for Over Current, Short Circuit, Earth Fault & Neutral Current protection with adjustable time delay. (ii) Digital type Multifunctional Meter for each breaker (Schneider Make, Model- PM5320 or its equivalent) with RS232/485 / Modbus TCP / IP and control MCBs. (iii) CT’s of ratio 2000/5 A,15 VA burden,Cl-1, Resin Casted. (iv) Mechanical and Electrical On, Off, Trip indication and R,Y,B Phase indication (LED with L with back up HRC fuse / MCB etc.)

(B) For DG Sets (To be connected through Cables): (i) 2 Nos. 800 Amps ,Four Poles (all poles rated100% at Ambient Temperature of 50 Deg. C), EDO Type Air Circuit Breakers ( ACB) of fault breaking capacity 65KA (Ics=Icu), Electrically operated, fitted with interlocked door, automatic safety shutters, mechanical ON/OFF and service/test/isolated position indicators and frame earthing contact, conforming to IS-13947- 2 1993 as amended up-to-date complete with following accessories complete as required. (a) Under Voltage Release. (b) Independent Automatic and Manual spring closing mechanism. (c) Microprocessor release (EMI & EMC certified) for Over Current, Short Circuit, Earth Fault & Neutral Current protection with adjustable time delay. (ii) Digital type Multifunctional Meter for each breaker (Schneider Make, Model- PM5320 or its equivalent) with RS232/485 / Modbus TCP / IP and control MCBs. (iii) CT’s of ratio 800/5 A,15 VA burden, Cl-1, Resin Casted. (iv)Mechanical and Electrical On, Off, Trip indication and R,Y,B Phase indication (LED with L with back up HRC fuse / MCB etc.)

(C) For Solar Power (To be connected through Cables): : (i) 2 Nos. 400 Amps ,four pole, Microprocessor Release MCCB with Over Current, Earth Fault & Short Circuit protection, fault breaking capacity 50KA, complete with Motor Mechanism Module with SDE adapter, Shunt Trip Coil , Under Voltage Release etc. compete as required. (ii) Digital type Multifunctional Meter for each breaker (Schneider Make, Model- PM5320 or its equivalent) with RS232/485 and control MCBs for each Incomings. (iii) CT’s of ratio 400/5 A,15 VA burden,Cl-1, Resin Casted. (iv) R,Y,B, On, Off, Trip indication LED lamps with 2 Amp back up HRC fuse / MCB etc.

2. Outgoing Section : (i) ,1 No. 2000 Amps, 3 Nos. 800 Amps and 1No. 1000 A ,Four Poles (all poles rated100% at Ambient Temperature of 50 Deg. C), EDO Type Air Circuit Breakers ( ACB) of fault breaking capacity 65KA (Ics=Icu), Electrically operated, fitted with interlocked door, automatic safety shutters, mechanical ON/OFF and service/test/isolated position indicators and frame earthing contact, conforming to IS-13947- 2 1993 as amended up-to-date complete with following accessories complete as required. (a) Under Voltage Release. (b) Independent Automatic and Manual spring closing mechanism. (c) Microprocessor release (EMI & EMC certified) for Over Current, Short Circuit, Earth Fault & Neutral Current protection with adjustable time delay. (ii) Digital type Multifunctional Meter for each breaker (Schneider Make, Model- PM5320 or its equivalent) with RS232/485 / Modbus TCP / IP and control MCBs. (iii) CT’s of ratio 800/5 A and 2000/5 A,15 VA burden, Cl-1, Resin Casted. (iv) Mechanical and Electrical On, Off, Trip indication and R,Y,B Phase indication (LED with L with back up HRC fuse / MCB etc.)

3. Bus Coupling Section : (i) 1 No. 2000 Amps, Four Poles (all poles rated100% at Ambient Temperature of 50 Deg. C), EDO Type Air Circuit Breakers ( ACB) of fault breaking capacity 65KA (Ics=Icu), Electrically operated, fitted with interlocked door, automatic safety shutters, mechanical ON/OFF and service/test/isolated position indicators and frame earthing contact, conforming to IS-13947- 2 1993 as amended up-to-date complete with following accessories complete as required. (a) Under Voltage Release. (b) Independent Automatic and Manual spring closing mechanism. (c) Microprocessor release (EMI & EMC certified) for Over Current, Short Circuit, Earth Fault & Neutral Current protection with adjustable time delay. (ii) Digital type Multifunctional Meter for each breaker (Schneider Make, Model- PM5320 or its equivalent) with RS232/485 / Modbus TCP / IP and control MCBs. (iii) CT’s of ratio 2000/5 A,15 VA burden,Cl-1, Resin Casted. (iv) Mechanical and Electrical On, Off, Trip indication and R,Y,B Phase indication (LED with L with back up HRC fuse / MCB etc.)

4. Bus Bars : TPN copper bus bars of minimum of 2000 Amps, 50 KA capacity with heat shrinkable coloured sleeves including DMC/SMC bus bar cross section, supports & their spacing etc. Necessary provisions are to be kept in Bus Bar for connection of the Existing Capacitor Banks (2 Nos 600 KVAR)

5. Interlocking : Electrical through advance contacts in ACB’s (incomers & Bus couplers) should be provided to ensure that only DG supply or Transformer plus Solar Power Supply is available at a time on each section of bus and to eliminate any possibility of accidentally approaching two supplies at one bus section.

6. Automatic Operation of ACBs and MCCBs: Necessary arrangement are to be provided for automatic change over the load (from Transformer and Solar power Supply to DG Supply and vice versa). Necessary Components like PLC / Power Scheduling Devices are to be supplied, installed and programmed for Power scheduling (Different for Working Hours and Non Working Hours of the Institute) / as per the instruction of the Engineer in Charge. For operational detail please refer attached Scope of work.

7. Communication and Monitoring: Necessary devices and cables shall be provided for integration of the Meters with existing Power Monitoring System ( Schneider Make PME, Ver 8.0) of the Institute.

Sub Head VI:LT Cabling

Supply of following sizes of 1.1 kV grade multicore aluminium conductor PVC sheathed / XLPE armoured cable.

4 C X 300 Sq. mm

4 C X 400 Sq. mm

Laying and fixing of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size on cable tray as required.

Above 185 sq. mm and upto 400 sq. mm (clamped with 40x3mm MS flat clamp)

Supplying and making straight through joint with heat shrinkable kit including ferrules and other jointing materials for following size of PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 kV grade as required.

3½ X 300 sq. mm

3½X 400 sq. mm

Supplying and making end termination with brass compression gland and Al. lugs for following size of PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 KV grade as required :

4 C X 300 sq. mm

4 C X 400 sq. mm

Supplying and installing following size of perforated Hot Dipped Galvanised Iron cable tray (Galvanisation thickness not less than 50 microns) with perforation not more than 17.5%, in convenient sections, joined with connectors, suspended from the ceiling with G.I. suspenders including G.I. bolts & nuts, etc. as required.

300 mm width X 62.5 mm depth X 2.0 mm thickness

600 mm width X 62.5 mm depth X 2.0 mm thickness

Sub Head VII: Earthing

Earthing with G.I. earth plate 600 mm X 600 mm X 6 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metre long etc. with charcoal/ coke and salt as required.

Earthing with copper earth plate 600 mm X 600 mm X 3 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metre long etc. with charcoal/ coke and salt as required.

Providing and fixing 25 mm X 5 mm copper strip in 40 mm dia G.I. pipe from earth electrode including connection with brass nut, bolt, pring, washer excavation and re-filling etc. as required.

Providing and fixing 25 mm X 5 mm G.I. strip in 40 mm dia G.I. pipe from earth electrode including connection with G.I. nut, bolt, spring, washer excavation and re-filling etc. as required.

Providing and fixing 25 mm X 5 mm copper strip on surface or in recess for connections etc. as required.

Providing and fixing 25 mm X 5 mm G.I. strip on surface or in recess for connections etc. as required.

Providing and fixing earth bus of 50 mm X 5 mm copper strip on surface for connections etc. as required.

Sub Head VIII: Safety Equipment:

Providing First Aid Box as approved by St. John Ambulance Brigade/Indian Red Cross conforming to IS 2217 : 1963.

Supply & fixing shock treatment chart duly mounted on a wooden frame with 5 mm thickglass as reqd. (approximate front area 1.20 sq. metre)

Providing of rubber mat 1 mtr. wide and 12 mm thick to withstand 15 KV dielectric strength as per IS 5424 : 1969

Providing of rubber mat 1 mtr. wide to withstand 1.1 KV dielectric strength as per IS rule.

Providing Gas Mask suitable for Electrical Substation.

Supply and fixing of Sand Bucket filled with sand and complete with metalic bracket / Stand for outdoor location.

Sub Head IX: Miscellaneous :

Wiring for light point/ fan point/ exhaust fan point/ call bell point with 1.5 sq.mm FRLS PVC insulated copper conductor single core cable in surface / recessed steel conduit, with piano type switch, phenolic laminated sheet, suitable size MS box and earthing the point with 1.5 sq.mm FRLS PVC insulated copper conductor single core cable etc. as required.

Wiring for circuit/ submain wiring alongwith earth wire with the following sizes of FRLS PVC insulated copper conductor, single core cable in surface/ recessed steel conduit as required.

2 X 2.5 sq. mm + 1 X 2.5 sq. mm earth wire

2 X 4 sq. mm + 1 X 4 sq. mm earth wire

Supplying and fixing metal box of following sizes (nominal size) on surface or in recess with suitable size of phenolic laminated sheet cover in front including painting etc. as required.

200 mm X 250 mm X 60 mm deep

Supplying and fixing following piano type switch/ socket on the existing switch box/ cover including connections etc. as required.

15/16 A switch

6 pin 15/16 A socket outlet

5/6 amps switch

5 pin 5/6 A socket outlet

Supplying and fixing metal box of 180mm X 100mm X 60mm deep (nominal size) on surface or in recess with suitable size of phenolic laminated sheet cover in front including providing and fixing 6 pin 5/6 & 15/16 A socket outlet and 15/16 A piano type switch, connections, painting etc. as required.

Installation, testing and commissioning of pre-wired, fluorescent fitting / compact fluorescent fitting of all types, complete with all accessories and tube / lamp etc., including supplying and fixing ball and socket arrangement, 2 Nos. down rods of 20 mm dia X 1.6 mm thick steel conduit upto 30 cm length, painting and wiring the down rods and connections with 1.5 sq. mm FRLS PVC insulated, copper conductor, single core cable and earthing etc. as required.

Removal of LT Power Cables above 185 sq. mm and upto 400 sq. mm from existing cable trench / Cable Tray / underground. The work is inclusive of poviding necessary manpower for keeping the cables in proper manner at the location as per instuction of the Engineer In charge.

Supplying and making cable route marker with cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size ) of size 60 cm X 60 cm at the bottom and 50 cm X 50 cm at the top with a thickness of 10cm including inscription duly engraved as required.

Excavation for cable trenches in soft soil, depth upto 1.2 m including dressing of sides lift upto 1.5 m, including getting out the excavated soil, refilling with sand and or good soil after laying of cable/ pipe etc in layers of 20 cm, ramming, watering and disposal of surplus excavated soil as directed, within a lead of 50 metres.

Supplying and laying of following size DWC HDPE pipe ISI marked along with all accessories like socket, bend, couplers etc. conforming to IS 14930, Part II complete with fitting and cutting, jointing etc..direct in ground (75 cm below ground level) including excavation and refilling the trench but excluding sand cushioning and protective covering etc., complete as required.

160 mm dia (OD-160 mm & ID-135 mm nominal)

Integration of existing power monitoring system (Schneider, PME8.0) with existing Auto Mains Failure Panel means for 2 Nos. 500KVA DG Sets, and all multifunctional meters of the above mentioned LT Panel ( for Transformers, DG and Solar Power Source) etc. The job is inclusive of supply, installation, testing and commissioning of all necessary Communication devices, Lisences (Suitable for existing Schneider make power monitoring Expert software - for 15 devices), cables / wires etc. to complete the communication system for Power monitoring.

Supply, installation, testing and commissioning of mimic Panel for monitoring of the status (ON, OFF, Trip) of out going feeders (32 Nos. MCCB of Schneider make) of existing 4 nos. LT Distribution Panel. The Panel shall be comprised of the followings complete as required- a) Sutable enclosure (Floor mounted type) b) Necessary compnents Like Auxiliary contact / Relays suitable for existing MCCBs of the feeders , PLC, SIM module for notification through SMS / Call etc. c) Suitable Indication Lamps for indication of status of 32 Nos feeders. d) Necessry wires / Cables etc. complete as required.

Sub Head X: Buy Back :

Cost for buying back of the following Items. ( Equipments of existing functional 6.0 KV of the Institute.) as it is and where it is basis. The dismantled materials will be available only after commissioning of the proposed Substation)

1000 KVA, 6.0 KV / 410 V, Indoor type Transformer installed at CSIR-IICB, Jadavpur Campus.

1000 KVA, 6.0 KV / 410 V, Outdoor type Transformer installed at CSIR-IICB, Jadavpur Campus.

HT OCB, 6 KV, 400A

6.0 KV, 2MVA, HT AVR Unit (Brentford Transformer and Onload Voltage Controller) installed at CSIR-IICB, Jadavpur Campus.

6.0 KV HT panels of 3 Nos 400 A VCB and 3 Nos. 630 A Isolator installed at CSIR-IICB, Jadavpur Campus.

XLPE Underground HT power cable of 6.0 KV grade 3C X 240 Sq mm laid at CSIR-IICB, Jadavpur Campus.

Rahul Electricals

Mars Developments

RASH ELECTRICAL WORKS

PRAYAAS AUTOMATION PVT.LTD