1) Replacement of existing Sub- Station equipments 2) Replacement of LT Panels 3) SITC of Retro Fit Emission Control Device for Diesel Generators and necessary electrical work at IGDTUW, Govt of NCT of Delhi.

Emergency Stop Push Button = 1 No. Phase indicating lamps = 3 Nos. Digital Voltmeter with selector switch. = 1 No. MFM (Multifunction Meter) with RS 485 port = 1 No. Control MCB SP/DP = 1 No. Inbuilt DC Power Pack = 1 No. Aux. relays for Anti Pumping & indication. = 1 No. Master trip relay. = 1 No. Over current and Earth fault based relay = 1 No. Cast resin CTs of dual ratio 200/100/5/ 5 Amps 5VA burden, CL:1.0 for Metering & 5P 10 for protection. = 3 Nos. Cast resin fixed type PTs 11 kV/ √3/ 110 √3, class 1, 100 VA. = 3 Nos. TNC Switch = 1 No. Anti- Condensation space heaters = 1 No. Outgoing 2 Nos. 11 kV HT Vacuum Circuit Breaker - 800 A, 3 pole = 2 Nos. ON/ OFF/TRIP/SPRING CHARGE/TRIP CIRCUIT HEALTHY indicating lamps. = 10 Nos. Emergency Stop Push Button = 2 Nos. Digital Ammeter with selector switch. = 2 Nos. Control MCB SP/DP = 2 Nos. Inbuilt DC Power Pack = 2 Nos. Aux. relays for Anti Pumping & indication. = 2 Nos. Master trip relay. = 2 Nos. Over current and Earth fault based relay = 2 Nos. Aux relay 3c/o 24DC for TRF. fault. = 4 Nos. Cast resin CTs of dual ratio 100/50/5/ 5 Amps 5VA burden, CL:1.0 for Metering & 5P10 for protection. = 2 Nos. Cast resin fixed type PTs 11 kV/ √3/ 110 √3, class 1, 100 VA. = 2 Nos. 8 window annunciator with Common hooter = 2 Nos. TNC Switch = 2 Nos. Anti- Condensation space heaters = 2 Nos. BUS Bar Aluminium.

TRANSFORMER Supply, installation, testing and commissioning of following capacity (continuous loading) 11/0.433 KV Delta/Star,step down, 3 Phase, 50 Hz, Dyn 11 vector group, Cast Resin / VPI (vacuum pressure impregnated) Dry Type, copper wound transformer (Electrolytic grade 99.9% pure copper, Core made of first grade Cold Rolled Grain Oriented (CRGO) Core grade MOH or better) AN (air natural) cooled transformer suitable for indoor applications with Offload Tap Changer/ On Load Tap Changer (OLTC) ( upto 500 KVA offload and above 500 KVA On Load Tap Changer) on HV side having AVR relay and Remote Tap Changer Control (RTCC) for automatic sensing of incoming voltage, automatic operation of OLTC and facility for remote and manual operation of OLTC HV side in range of +5% to -15% in steps of 2.5%, insulation class F (minimum), suitable for environment conditions class E4, suitable for fire behaviour class F1,climate class-C1, having cable end boxes on HV side suitable for 3x300 sqmm XLPE cable of 11 KV grade with necessary hardware, clamps, lugs etc. for termination on HV/MV etc. for all transformers, bus trunking arrangement on LV side complete with all accessories and safety provisions as per relevant IS Code ,The transformer shall be provided with standard fittings/accessories as per relevant IS and mentioned below, protection alarm/trip protection, 3 nos. of Polymeric Zinc Oxide surge Arrestors on HV Side. Winding Temperature scanner (Digital) with alarm/Trip contacts with RTD Sensors per LV winding and space for mounting differential protection CT's in LV chamber with neutral brought out separately including supplying and laying of copper conductor multicore control cable from transformer to HT breaker/HT Panel for safety tripping, complete as confirming to IS-2026 Part-11, i/c supplying and grouting of suitable M.S. Channel with all accessories ,complete in all respects as required at site as per CPWD specifications . Design ambient condition : a) air temperature 50 0C, b) Relative Humidity 90 % Max, c) Seismic Zone as per location of site, d) Altitude as per location/site. The transformer should have QR code which should contain drawing, test report OEM manual,Geo- Tag of manufacturing location, rating plate as per relevant IS Code etc. All testing shall as per relevant IS Code. Noise level Shall not exceed limits as per NEMA TR-1 with all accessories running measured as per IEC 551/ NEMA Standard. Fitting and Accessories : The following fittings shall be provided:- a) Two earthing terminals with the earthing symbol b) Rating and terminal marking plates; c) Thermometer pocket with cap; d) Lifting lugs for the complete transformer as well as for core and winding assembly; e) Bi-directional flat rollers (for transformers above 200 kVA); f) HV side neutral grounding strip (where one of the HV bushing terminal is connected to earth); g) Arcing horns or suitable rating lightning arrestors for HT side – 3 Nos. for transformers up to 200 kVA; h) Bird guard; i) Jacking pads (for transformer above 1 600 kVA); j) Name Rating & Diagram Plate. k) Monogram Plate.i) Additional neutral separately brought out on bushing for earthing. Level 3 1250 KVA (losses at 50% loading < 3600watt, losses at 100% loading < 10750watt)

Bus Coupler (i) 1 Nos - 2000 Ampers four pole horizontal drawout type electrically operated air circuit breaker of fault breaking capacity 50 kA breaking capacity (Ics = Icu = Icw=100%) for 1 second suitable upto 690V with LSIG release, fitted with interlocked door, automatic safety shutters, mechanical ON/OFF and service/test/isolated position indicators and frame earthing contact, auxilary contacts, shunt trip, interlocking features etc. (ii) 1 Sets- RYB Phase indication LED lamps with 6A, 10KA, "C" Curve back up MCB, breaker ON/OFF/TRIP indicating light with 6A, 10KA, "C" Curve backup MCB BUS BARS: FP aluminium bus bars of minimum of 2500 A capacity with heat shrinkable colored sleeves and i/c DMC/SMC bus bars supports at required intervals complete, for cross section, size supports & their spacing etc. for withstanding fault level of 31 MVA for 1 Sec. Interlocking (i) INTERLOCKING Electrical Interlocking through advance contacts in ACBs (Incomers) and mechanical (Castel key) Interlocking should be provided to ensure that only one supply is available at a time on each section of BUS and to eliminate any possible of accidently approaching two supplies at one BUS section with FRLS flexible copper wire. = 1 Job

Outgoing (i) 4 Nos.-800 Ampers four pole horizontal drawout type electrically operated air circuit breaker of fault breaking capacity 50 kA breaking capacity (Ics = Icu = Icw=100%) for 1 second suitable upto 690V, fitted with interlocked door, automatic safety shutters, mechanical ON/OFF and service/test/isolated position indicators and frame earthing contact, auxiliary contacts, shunt trip, interlocking features etc. complete with self powered Microprocessor based release for adjustable setting for over current, earth fault & short circuit protection with LCD display with current power & harmonic metering& pre overload and over temperature protection indication along with USB port for communication & all other standard features conforming to IS 1397-2 : 1993 as amended up-to-date (ii) 4 Sets- RYB Phase indication LED lamps with 6A, 10KA, "C" Curve back up MCB, breaker ON/OFF/TRIP indicating light with 6A, 10KA, "C" Curve backup MCB (iii) 4 Nos.- 3 phase Intelligent multifunction digital meter to read V, A, KVA, KWH, PF Hz etc. with 3 Nos. resin cast CTs of 800/5 A class 1.0 accuracy and 15 VA burden and with 3 Nos 6A, 10KA, "C" Curve back up MCB. (ii) 4 Set- 630A, FP, 36KA MCCB (Ics=Icu =100%) with Microprocessor based release with adjustable setting having O/L & S/C protection with Rotary handle and spreader terminal. (iii)16 Set- 400A, FP, 36KA MCCB (Ics=Icu =100%) with Microprocessor based release with adjustable setting having O/L & S/C protection with Rotary handle and spreader terminal. (iv) 8 Set- 250A, FP, 36KA MCCB (Ics=Icu =100%) with Microprocessor based release with adjustable setting having O/L & S/C protection with Rotary handle and spreader terminal. (v) 6 Set- 125A, FP, 36KA MCCB (Ics=Icu =100%) with Thermal based release with adjustable setting having O/L & S/C protection with Rotary handle and spreader terminal. (vi) 34 sets- 3 phase Intelligent multifunction digital meter to read V, A, KVA, KWH, PF Hz etc. with 3 Nos. resin cast CTs along with ON/OFF indicating light with 6A, 10KA, "C" Curve backup MCB, auxiliary contacts with MCCB

PHASE SEQUENCE CORRECTION PANEL Supply, installation, testing and commissioning of Microprocessor Based Automatic Phase Sequence Corrector Panel for non stop smooth functioning of 3 phase critical equipments with built in protection like short circuit, over load, high/low voltage cut off of load from source in cubical type compartmentalized and fabricated from minimum 2 mm thick CRCA sheet having necessary cable alleys, powder coated including connection and interconnection as required as per specifications complete with 2000 Amp capacity, features and specifications:- Suitable for correcting the RYB phase sequence, whenever the sequence is changed or reversed Avoid damages during phase sequence changed or reversed It should be:- 1) Fully automatic. 2) No manual intervention. 3) Single phase prevention. 4) Voltage imbalance protection between phases. output in the right sequence (R,Y,B) ON delay and OFF delay selectable and adjustable. Protects against phase unbalancing/phase loss/under and over voltages. Indications of R Y B Phase. 2000 Amp 4 pole EDO type ACB- 2 Nos.

BUS TRUNKING Supplying, installing on wall, testing and commissioning of following capacity Air Insulated Compact Type Bus Trunking for use on 3 phase 4 wire 415 volts, 50Hz A.C. supply with metal clad enclosure made of 1.6mm thick steel sheet duly powder coated in convenient sections complete with 4 Nos aluminium bus bars, necessary joints, elbow joints & expansion joints, fire barrier at each floor, provision of tapping at every metre, continuous earthing with 2 Nos aluminium strip of suitable size (one on each side) including, G.I. clamping brackets, angle iron bracket, steel fasteners, connecting to earthing system etc. as required 2500 A Isc = 50kA for 1 second

ii) Auto Manual Selector switch, auxiliary contactors with timer for delay in manual mode. iii) Digital Multi function meter with LED Display for V, A, PF, KW, KVA, KVAR, THD-V & I, Frequency. iv) Suitable rating control transformer shall be provided for control and indication circuit. v) All components like control transformer, meter, relay and indicating lamp shall be protected by using suitable rating individual MCB's. vi) Wiring of the control circuit shall be done by using 2.5 sq mm, FRLS/HFFR 1100 V grade, PVC insulated multi stranded copper control wire. vii) Communication Ethernet/RS485/SNMP port open protocol for BMS integration as per approved by Engineering in charge. b) For Active Section: Dedicated HMI (Human Machine Interface) (Minimum 7 inch display) for controlling and communication and having display of Phase wise V, A, PF, Cos-Phi, KW, KVA, KVAR, THDV , THD-I, harmonics up to 50th level. CommunicationEthernet/RS485/SNMP port open protocol for BMS integration as per approved by Engineering in charge. (a) 400 KVAR