Augmentation of Old Power House at VSI Airport Sri Vijaya Puram

Amount

SH-I: Supply of Sub-station Equipments

Design, Fabrication and Supply of indoor type panels shall be constructed from CRCA steel sheet of 2 mm thickness, floor mounted metal enclosed, 11 KV VCB panel with 5 nos VCBs (2 INCOMER, 1 Bus Coupler with Riser & 2 OUTGOINGS), totally enclosed and fully interlocked, horizontal draw out, horizontal isolation type breaker as per IEC-62271-1,100,200, as amended up to date and additional specifications, having capacities as mentioned below, single break, trip free mechanism, manually charged and manually closing breaker suitable for use on 11 kV, 3 phase, 50 Hz A.C. supply with short circuit fault level of 26.3kA for 3 sec , Panel shall be full internal arc tested i.e. in all three chambers at 26.3kA for 1 sec for safety purpose (AFLR). complete with self contained, fully interlocked, rack in and rack out mechanism, air insulated HT sleeved (PVC sleeve is not accepted) self supported copper bus bars of 630 amps capacity, breaker featured with mechanical ON/ OFF indicator with hand trip coil and auxiliary switch of 4 NO+4NC and equipped with following switchgears and accessories. Make of Vacuum interrupter, circuit breaker, Panel, relays & meters shall be same. Cable compartment suitable for 2RX3C x 240 sq. mm XLPE 11 kV cable (Cable entry from bottom) end termination with heat shrinkable jointing material etc as reqd. There must be a viewing window on VCB chamber door and same must be as per Internal arc test report. The basic insulation level of entire panel shall be 28KV(RMS) / 75KV(Peak)

Incoming - 2 No- 630 Amp VCB and each shall be consisting of

630 Amp VCB - 1 Nos

Digital type multi function meter and Digital type Ammeter & Voltmeter - 1 No.

Flush mounted type Microprocessor based numercial IDMT relay (VCB Panel manufacturer's own Make) with O/L, E/L and S/C communicable on modbus protocal for protection and Status monitoring with Master trip and Trip Ckt Supervision relay. Relay shall have programable 4 digital Inputs and 6 outputs. -1 No.

Dual core /single core separate sets, dual ratio 3 Nos. CTs 200-100/5+5A of 15 VA burden and accuracy class 1 for metering and class 5P10 for protection comply with IS 2705 - 1 Set

R,Y,B ON, OFF, Trip Indication with Control MCB - 1 Set

Annunciator -8 Window- 1Set

ABT meter for power tarrif - 1 Set.

Provision of power card/converter arrangments for 230V AC supply for feeding of HT panel internal controlling operation with 220 Volt AC input & 110V Volt DC continuous output suitable for closing / tripping / indication etc

Bus Coupler with Riser - 1 No- 630 Amp VCB and each shall be consisting of

630 Amp VCB - 1 Nos

R,Y,B ON, OFF, Trip Indication with Control MCB - 1 Set

Annunciator -8 Window- 1Set

Electrical inter locking with both incomers & bus coupler

Provision of power card/converter arrangments for 230V AC supply for feeding of HT panel internal controlling operation with 220 Volt AC input & 110V Volt DC continuous output suitable for closing / tripping / indication etc

Outgoing - 2 Nos- 630 Amp VCB and each shall be consisting of

630 Amp VCB - 1 Nos

Digital type multi function meter & Digital ammeter-1 Nos.

Flush mounted type Microprocessor based numercial IDMT relay with O/L, E/L and S/C, Arc fault protection communicable on modbus protocal for protection and Status monitoring with Master trip and Trip Ckt Supervision relay. Relay shall have programable 4 digital Inputs and 6 outputs- 1 Nos.

Dual core dual ratio 3 CTs 100-50/5 A of 15 VA burden and accuracy Class-1 for metering and class 5P10 for protection - 3 Nos.

Annunciator -8 Window- 1 Nos

Hooter - 1 Nos

Flash mounted Aux. Relay as required for OTI, WTI & Buchloz Alarm & Trip functions

Trip super vision Relay - 1 Nos.

Provision of power card/converter arrangments for 230V AC supply for feeding of HT panel internal controlling operation with 220 Volt AC input & 110V Volt DC continuous output suitable for closing / tripping / indication etc

COMPLETE ALL AS ABOVE 1.01 to 1.27

Supply of 1000 kVA capacity (continuous loading) BEE 3 Star rated (Corresponding Level as per BIS amended upto date of receipt of tender) , 11/0.433 KV step down Transformer, 3 Phase, 50 Hz, Dyn 11 vector group, ONAN (Oil Natural Air Natural) copper wound transformer (Electrolytic grade 99.9% pure copper, Core made of first grade Cold Rolled Grain Oriented (CRGO) Core grade MOH or better, losses of the transformer shall not be more than 2.62 kW at 50% load and 7.00 kW at 100% load, 5% impedance, suitable for indoor applications with On Load Tap Changer (OLTC) 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%, having cable end boxes on HV side suitable for 3x 185 sqmm XLPE cable of 11 KV grade, including bus trunking arrangement on LV side including supplying and laying of copper conductor multicore control cable from transformer to HT breaker/panel for safety tripping, complete with all accessories and safety provisions as per relevant IS Code . The transformer should have QR code which should contain drawing, test report OEM manual,Geo- Tag of manufacturing location complete etc., as required.

Main Non Essential L. T. Panel

Design, Fabrication and Supply of Totally Type Tested Panels (Form -4B Construction) complying to IEC: 61439- 1/2 cubicle type LT panel, Panel shall be single tire ACB design to ensure easy maintenance & enough termination space, with minimum impact resistance IK09/IK10 as per IEC : 62262, Active Arc protection shall be considered with Arc Flash relays along with required sensores, Minimum IP42, suitable for 415V+/- 10%, 3 Phase, 4 wire 50 Hz AC supply system. Panel fabricated in compartmentalized modular design from CRCA sheet steel of 2 mm thick for frame work and covers, 3 mm thick for gland, plates i/c cleaning & finishing complete with 7 tank process for powder coating in approved shade, having TPN Aluminium alloy bus bars for high conductivity, SMC bus bar supports, with short circuit withstand capacity of 50 KA for 1 sec , bottom base channel of MS section not less than 100 mm x 50 mm x 5 mm thick, fabrication shall be done in transportable sections, entire panel shall have a common Copper earth bar of size 50 mm x 6 mm at the rear with 2 Nos. earth stud, solid / flexible connections from main bus bar to switchgears and from switchgear output to cable termination in cable alley with required size of AL conductors / bus bars with necessary over head bus trunking terminations and control wiring with 2.5 sqmm PVC insulated copper conductor cable (FRLSH), cable alleys, cable gland plates in two half, i/c providing following switchgears / accessories as per specifications. (Cable Entry for the panel shall be as decided by E-I-C during drawing approval)

Incomer from Transformer 1 & Transformer 2

2 Nos. ACB, 2000 Amps, 50 kA, 4 Pole, Microprocessor release Horizontal draw out type of fault breaking capacity 50KA (Ics=lcu=Icw for 1.0 secs) Electrical Draw Out Motorized operated, fitted with interlocked door, automatic safety shutters, mechanical ON/OFF and service/ test/isolated position indicators and frame earthing contact, conforming to IS-60947-2 2003 as amended up-to- date complete with inbuilt LCD/LED display, Independent Electrical & manual spring closing mechanism, Microprocessor release (EMI & EMC certified) for over current (Phase & neutral), earth fault & short circuit protection, LSIG protection, Shunt trip coil 24V D.C / 220V A.C, Breaker Control Switch - 16A, Test terminal block set, circuits as per standard practice, auxiliary contactors with suitable contacts ( but minimum 4NO+4NC) for positive interlocking of the breakers, necessary interlocking with PLC auto controls with all protection i/e Earth fault, Under/Over Voltage, Under/Over Frequency, Current & Voltage Unbalance, etc. GF settings shall be from minimum 10% of the rated current of the ACB otherwise Electromechanical relay shall be used for Achiving minimum 10% setting.ACB LED/LCD display shall be with Current metering.ACB ON OFF TRIP status shall be provided through potential free contacts to BMS.

All ACBs shall be provided with Mechanical Operation Counter, Door Interlock with Panel door

Each Incomer shall have one set of the following items:

1 set- Intelligent multi function digital meter to read V,A,kVA, KW, kVAR, PF, Hz etc with communication facility (RS485 port), THD and Individual order harmonics upto 31st Order & maximum demand. LED display with required Nos CTs, 1000/5,15 VA, class 1.0 and control circuit wiring with 2 Amp MCB for controlling.

1 Set of Indication Lamps, LED type, R,Y,B Phase indicating lamp with 2 Amp MCB for controlling.

1 Set of Indication Lamps, LED type for breaker 'ON' , 'OFF', 'TRIP' & spring charged lamps with 2 Amp MCB for controlling.

240 V AC Shunt trip coil. - 1 Set

Accessories for Electrical Interlocking

64R relay with Class PS CT

Bus Coupler

1 No.2000 Amps, 50 kA, 4 Pole, (EDO) Air Circuit Breaker Horizontal draw out type (without release) of fault breaking capacity 50KA (Ics=lcu =Icw) upto 433V) Electrical Draw Out Motorized operated, Independent Electrical / manual spring closing mechanism 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 necessary Auxiliary contact & MCB.

4 Sets Indication Lamps, LED type, for RYB with 2 Amp control MCB.& breaker 'ON' , 'OFF', 'TRIP' & spring charged lamps with 2 Amp MCB for controlling.

Bus Bars

TPN aluminium extensible type main bus bars of Suitable capacity with heat shrinkable coloured 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 50kA capacity for 1 sec.

Outgoing

4 Nos. 1250 Amps ACB's with 50 kA, 4 Pole, Microprocessor release Horizontal draw out type of fault breaking capacity 50KA (Ics=lcu=Icw for 1.0 secs) Electrical Draw Out Motorized operated, fitted with interlocked door, automatic safety shutters, mechanical ON/OFF and service/ test/isolated position indicators and frame earthing contact, conforming to IS-60947-2 2003 as amended up-to- date complete with inbuilt LCD/LED display, Independent Electrical & manual spring closing mechanism, Microprocessor release (EMI & EMC certified) for over current (Phase & neutral), earth fault & short circuit protection, LSIG protection, Shunt trip coil 24V D.C / 220V A.C, Breaker Control Switch - 16A, Test terminal block set, circuits as per standard practice, auxiliary contactors with suitable contacts ( but minimum 4NO+4NC) for positive interlocking of the breakers, necessary interlocking with PLC auto controls with all protection i/e Earth fault, Under/Over Voltage, Under/Over Frequency, Current & Voltage Unbalance, etc. GF settings shall be from minimum 10% of the rated current of the ACB otherwise Electromechanical relay shall be used for Achiving minimum 10% setting.ACB LED/LCD display shall be with Current metering.ACB ON OFF TRIP status shall be provided through potential free contacts to BMS.

All ACBs shall be provided with Mechanical Operation Counter, Door Interlock with Panel door

Each outgoing ACB shall have one set of the following items:

1 set- Intelligent multi function digital meter to read V,A,kVA, KW, kVAR, PF, Hz etc with communication facility (RS485 port), THD and Individual order harmonics upto 31st Order & maximum demand. LED display with required Nos CTs,15 VA, class 1.0 and control circuit wiring with 2 Amp MCB for controlling.

1 Set of Indication Lamps, LED type, R,Y,B Phase indicating lamp with 2 Amp MCB for controlling.

1 Set of Indication Lamps, LED type for breaker 'ON' , 'OFF', 'TRIP' & spring charged lamps with 2 Amp MCB for controlling.

240 V AC Shunt trip coil. - 1 Set

4 Nos. 400 Amps, MCCB's , 6 Nos. 250 Amps, MCCB's & 4 Nos. 125A mps , MCCBS.

Above MCCB'S with 4 Pole, 35 kA with adjustable setting , microprocessor release with O/C, S/C & E/F protection, Digital Muilti Function Meter with maximum demand load and current display RS485 module of class- 1 accuracy with suitable range of cast resin CT including connections etc as required.

1 No ON' (Red) ,OFF & TRIP indication lamp (LED type) with 2 Amp SP MCB for each outgoing.

1 Set Rotary operating mechanism and terminal extension spreaders for all the ACBs/MCCB's.

2 Sets Surge protection device Type 1 ( Class B) 4 Mode, MOV type suitable for 10/ 350µs surge, Voltage Protection level Phase : 3 NPE, Iimp = 100KA(L-N), 100KA (N-PE), UN = 230 V AC,UC = 320 V, Up = 1.5 KV Including with inbuilt fuse and all necessary accessories and wire connections.

COMPLETE ALL AS ABOVE 3.01 to 3.31

Supply of 500 KVA Prime Duty DG Set comprising of following (Location: Old Substation VSI Airport, Sri Vijaya Puram):

01 No. Alternator suitable for generating 400 KW/500 KVA at 415 V, 3 Phase, 50 Hz, 0.8 PF, 1500 RPM, Self Ventilated, Self Regulated and Self Excited with Brushless Type conforming to IS 4722 with suitable size cable termination box including provision of suitable size and length control cable for alternator scanner etc. as specified and as required.

01 No. Multi Cylinder, 4 Stroke, Turbo Charged Diesel Engine developing suitable BHP at 1500 RPM suitable for above Alternato, Specific fuel consumption shall be more than 220 g/kWh and Complete with all accessories such as Base Frame, AVM Pads, Batteries 2 Nos. [12 Volts,180 AH], All Types of Filters, Coupling, Starter, Residential Silencer, Lightning arrestor spike with 20 x 3 mm GI tape up to DG set foundation, Automatic Electronic Speed Governing Mechanism, Compact Radiator etc. and conforming to relevant IS with up to date amendments including provision of suitable size and length control cable for engine control panel and battery charger as specified and as required.

1 No. Daily Service Fuel Tank of Capacity as per manufacturers standard having minimum capacity of 990 litre, fabricated out of 3 mm thick M.S sheet complete with all standard accessories and fuel piping between fuel tank and diesel engine with MS class 'C' pipes of suitable dia. complete with valves, level indications and accessories as required as per specification.

Customised Compact Modular Type Tested Acoustic Enclosure suitable for the above DG Set to limit the Noise Level to 75 dB (A) at a distance of 1 Mtr., from the Enclosure, made out of CRCA sheet of 1.6 mm thickness for the Outside Cover and Doors and for Inside Cover with 0.8 mm thick perforated GI Sheet, Louvers of thickness 1.6 mm CRCA Sheet for Fresh Air and Hot Air, Powder coated after Seven Tank Process, Neoprene Rubber Gasket and heavy duty SS locks with SS Hinges, Acoustic made up of high quality rock wool/glass wool/ mineral wool as per OEM design, Base Frame of suitable Size Channel, provision to accommodate Batteries, Support for Silencers, provided with 4 Nos. LED Tube light Fittings of 2 feet and Switches as required.

Exhaust gas piping upto maximum of 10 Mtr. for above DG of suitable dia. welded black MS, B class pipe confirming to IS:1239 cut to required lengths and installed with necessary bends, clamps, bellows, residential silenser, insulation of exhaust system with mineral wool/Rockwool 50 mm thick, wire mesh & aluminium cladding of minimum thickness of 0.6 mm, Required size lattice type MS supporting structure with suitable foundation etc., as required as per specifications and as per relevant CPCB Norms.

G.S.S square/rectangular duct maximum of 20 Sq. Mtr. for dissipation of hot air to outside for above DG set made out of GI sheet thichness as specified in technical specification complete with gaskets, elbows, splitters, vanes, MS angle iron supports with threaded rod hanging arrangement, end cowl, bird mesh, etc. as per specifications to meet site requirement etc. as required.

DG set Shall comply to CPCB IV + Emission Norms Compliance to Revised Emission Standards dated 03.11.2022 and upto date amendments. Performing 13 Hrs Load test for the DG set at factory arranged with suitable load equipment at the time of predelivery inspection along with other routine tests as mentioned in the DG set specifications.

COMPLETE ALL AS ABOVE 4.01 to 4.07

AMF LT Panel

Design, Fabrication and Supply of Totally Type Tested Panels (Form -4B Construction) complying to IEC: 61439- 1/2 cubicle type LT panel, Panel shall be single tire ACB design to ensure easy maintenance & enough termination space, with minimum impact resistance IK09/IK10 as per IEC : 62262, Active Arc protection shall be considered with Arc Flash relays along with required sensores, Minimum IP42, suitable for 415V+/- 10%, 3 Phase, 4 wire 50 Hz AC supply system. Panel fabricated in compartmentalized modular design from CRCA sheet steel of 2 mm thick for frame work and covers, 3 mm thick for gland, plates i/c cleaning & finishing complete with 7 tank process for powder coating in approved shade, having TPN Aluminium alloy bus bars for high conductivity, SMC bus bar supports, with short circuit withstand capacity of 50 KA for 1 sec , bottom base channel of MS section not less than 100 mm x 50 mm x 5 mm thick, fabrication shall be done in transportable sections, entire panel shall have a common Copper earth bar of size 50 mm x 6 mm at the rear with 2 Nos. earth stud, solid / flexible connections from main bus bar to switchgears and from switchgear output to cable termination in cable alley with required size of AL conductors / bus bars with necessary over head bus trunking terminations and control wiring with 2.5 sqmm PVC insulated copper conductor cable (FRLSH), cable alleys, cable gland plates in two half, i/c providing following switchgears / accessories as per specifications. (Cable Entry for the panel shall be as decided by E-I-C during drawing approval)

Two Nos. of 1000 A, 50KA, Four Pole, Microprocessor release Horizontal draw out type of fault breaking capacity 50KA (Ics=lcu=Icw for 1.0 secs) , One ACB for EB incomer and another for DG incomer ,Electrical Draw Out Motorized operated, fitted with interlocked door, automatic safety shutters, mechanical ON/OFF and service/ test/isolated position indicators and frame earthing contact, conforming to IS-60947-2 2003 as amended up-to- date complete with inbuilt LCD/LED display, Independent Electrical & manual spring closing mechanism, Microprocessor release (EMI & EMC certified) for over current (Phase & neutral), earth fault & short circuit protection, LSIG protection, Shunt trip coil 24V D.C / 220V A.C, Breaker Control Switch - 16A, Test terminal block set, circuits as per standard practice, auxiliary contactors with suitable contacts ( but minimum 4NO+4NC) for positive interlocking of the breakers, necessary interlocking for EB & DG incomers with PLC auto controls with all protection i/e Earth fault, Under/Over Voltage, Under/Over Frequency, Current & Voltage Unbalance, etc. GF settings shall be from minimum 10% of the rated current of the ACB otherwise Electromechanical relay shall be used for Achiving minimum 10% setting.ACB LED/LCD display shall be with Current metering.ACB ON OFF TRIP status shall be provided through potential free contacts to BMS.

Two Nos. 1000 A, 4P On Load Change Over Switch each one for above ACBs for Bye-pass arrangement with bus bar/link arrangements and auxillary contacts & LED lamps for indicating position of Change Over Switch [AMF/BYEPASS/OFF]

One No. 8 Display Temperatue Scanner for BTD and RTD

One Set of LVM

One Set of Push Button for Start/Stop/Reset etc.

One Set of LED Display for Performance of DG Set

One Hooter to alarm the abnormality of DG Set and Annunciation Windows for Performance and Operation of DG Set etc.

One Set of Contactors for Auto/ Manual/ Interlock/ Time Delay Operation

One Set of AMF Module and Engine Protection PCB and Accessories.

Four Set of Space Heater, Heating Thermostat, wiring, etc. and Accessories.

Four Set of Cooling fan, Cooling Thermostat, wiring, etc. and Accessories.

One Set of 1200 Amps Al. Bus Bar for 3 Phases and Neutral

All accessories such as fuses, auxillary contactors, auxillary switches, Panel illumination LED lamps, etc. as required.

COMPLETE ALL AS ABOVE 5.01 to 5.17

Main Essential L. T. Panel

Design, Fabrication and Supply of Totally Type Tested Panels (Form -4B Construction) complying to IEC: 61439- 1/2 cubicle type LT panel, Panel shall be single tire ACB design to ensure easy maintenance & enough termination space, with minimum impact resistance IK09/IK10 as per IEC : 62262, Active Arc protection shall be considered with Arc Flash relays along with required sensores, Minimum IP42, suitable for 415V+/- 10%, 3 Phase, 4 wire 50 Hz AC supply system. Panel fabricated in compartmentalized modular design from CRCA sheet steel of 2 mm thick for frame work and covers, 3 mm thick for gland, plates i/c cleaning & finishing complete with 7 tank process for powder coating in approved shade, having TPN Aluminium alloy bus bars for high conductivity, SMC bus bar supports, with short circuit withstand capacity of 50 KA for 1 sec , bottom base channel of MS section not less than 100 mm x 50 mm x 5 mm thick, fabrication shall be done in transportable sections, entire panel shall have a common Copper earth bar of size 50 mm x 6 mm at the rear with 2 Nos. earth stud, solid / flexible connections from main bus bar to switchgears and from switchgear output to cable termination in cable alley with required size of AL conductors / bus bars with necessary over head bus trunking terminations and control wiring with 2.5 sqmm PVC insulated copper conductor cable (FRLSH), cable alleys, cable gland plates in two half, i/c providing following switchgears / accessories as per specifications. (Cable Entry for the panel shall be as decided by E-I-C during drawing approval)

Incomer from AMF Panel 1 & AMF Panel 2

2 Nos. of ACB, 1000 Amps, 50 kA, 4 Pole, Microprocessor release Horizontal draw out type of fault breaking capacity 50KA (Ics=lcu=Icw for 1.0 secs) Electrical Draw Out Motorized operated, fitted with interlocked door, automatic safety shutters, mechanical ON/OFF and service/ test/isolated position indicators and frame earthing contact, conforming to IS-60947-2 2003 as amended up-to- date complete with inbuilt LCD/LED display, Independent Electrical & manual spring closing mechanism, Microprocessor release (EMI & EMC certified) for over current (Phase & neutral), earth fault & short circuit protection, LSIG protection, Shunt trip coil 24V D.C / 220V A.C, Breaker Control Switch - 16A, Test terminal block set, circuits as per standard practice, auxiliary contactors with suitable contacts ( but minimum 4NO+4NC) for positive interlocking of the breakers, necessary interlocking with PLC auto controls with all protection i/e Earth fault, Under/Over Voltage, Under/Over Frequency, Current & Voltage Unbalance, etc. GF settings shall be from minimum 10% of the rated current of the ACB otherwise Electromechanical relay shall be used for Achiving minimum 10% setting.ACB LED/LCD display shall be with Current metering.ACB ON OFF TRIP status shall be provided through potential free contacts to BMS.

All ACBs shall be provided with Mechanical Operation Counter, Door Interlock with Panel door

Each Incomer shall have one set of the following items:

1 set- Intelligent multi function digital meter to read V,A,kVA, KW, kVAR, PF, Hz etc with communication facility (RS485 port), THD and Individual order harmonics upto 31st Order & maximum demand. LED display with required Nos CTs, 1000/5,15 VA, class 1.0 and control circuit wiring with 2 Amp MCB for controlling.

1 Set of Indication Lamps, LED type, R,Y,B Phase indicating lamp with 2 Amp MCB for controlling.

1 Set of Indication Lamps, LED type for breaker 'ON' , 'OFF', 'TRIP' & spring charged lamps with 2 Amp MCB for controlling.

240 V AC Shunt trip coil. - 1 Set

Accessories for Electrical Interlocking

Bus Coupler

1 Nos. 1000 Amps, 50 kA, 4 Pole, (EDO) Air Circuit Breaker Horizontal draw out type (without release) of fault breaking capacity 50KA (Ics=lcu =Icw) upto 433V) Electrical Draw Out Motorized operated, Independent Electrical / manual spring closing mechanism 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 necessary Auxiliary contact & MCB.

4 Sets Indication Lamps, LED type, for RYB with 2 Amp control MCB.& breaker 'ON' , 'OFF', 'TRIP' & spring charged lamps with 2 Amp MCB for controlling.

Bus Bars

TPN aluminium extensible type main bus bars of Suitable capacity with heat shrinkable coloured 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 50kA capacity for 1 sec.

Outgoing

4 Nos. 400 Amps, MCCB's , 8 Nos. 250 Amps, MCCB's & 4 Nos. 125A mps , MCCBS.

Above MCCB'S with 4 Pole, 35 kA with adjustable setting , microprocessor release with O/C, S/C & E/F protection, Digital Muilti Function Meter with maximum demand load and current display RS485 module of class- 1 accuracy with suitable range of cast resin CT including connections etc as required.

1 No ON' (Red) ,OFF & TRIP indication lamp (LED type) with 2 Amp SP MCB for each outgoing.

1 Set Rotary operating mechanism and terminal extension spreaders for all the ACBs/MCCB's.

2 Sets Surge protection device Type 1 ( Class B) 4 Mode, MOV type suitable for 10/ 350µs surge, Voltage Protection level Phase : 3 NPE, Iimp = 100KA(L-N), 100KA (N-PE), UN = 230 V AC,UC = 320 V, Up = 1.5 KV Including with inbuilt fuse and all necessary accessories and wire connections.

COMPLETE ALL AS ABOVE 6.01 to 6.22

Incomer

1000 Amps ACB, 50 KA (Ics) 4 Pole

1 Set of R Y B LED Type Indicating Lamps with HRC fuses and toggle switches

1 No Automatic Power factor correction relay for automatic correction of Power factor.

Instrument & Indication

For Passive Section :

3-Phase current sensing APFC microprocessor relay/controller , advance 12 stages for over all capacity of panel (active + passive) and having display of Phase wise V, A, PF, Cos-Phi, KW, KVA, KVAR, THD-V , THD-I, harmonics up to 31 level.

Digital Multi function meter with LED Display for V, A, PF, KW, KVA, KVAR, THD-V & I, Frequency.

Suitable rating control transformer shall be provided for control and indication circuit.

All components like control transformer, meter, relay and indicating lamp shall be protected by using suitable rating individual MCB's.

Wiring of the control circuit shall be done by using 2.5 sq mm, FRLSH 1100 V grade, PVC insulated multi stranded copper control wire.

Communication Ethernet/RS485/SNMP port open protocol for BMS integration as per approved by Engineering in charge.

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, THD-V , THD-I, harmonics up to 50th level. Communication Ethernet/RS485/SNMP port open protocol for BMS integration as per approved by Engineering in charge.

COMPLETE ALL AS ABOVE 7.00 to 7.16

Fabrication and Supply of 2000 Amps, 50 KA for 1 sec, Indoor IP 55 Sandwich Type Bus Trucking complying to IEC 61439-1 & 6 (Interconnetion from Transformer to Non- Essential LT Panel), for use on 3 Phase 4 Wire, 415 Volts, 50 Hz AC supply with metal clad enclosure made of 1.6mm thick GI Sheet duly powder coated in convenient sections complete with 4 Nos. of Aluminium Bus Bars with Class F Insulation, necessary joints, elbow joints, expansion joints and bends, offsets, adopter box and Copper Flexible for Joints, external Aluminium earth strip 50x6mm, aluminium interconnection busbars, threaded rod for suspenders, angle iron bracket, fasteners, nuts and bolts, connecting to existing earthing system etc. complete as required. Note : Bus Trunking Shall be measured along the length of enclosure of Straigh Run/T Section/Bend. The aluminum strips which will go inside L.T Panels & end termination boxes of transformers shall not be taken in to measurement of bus truncking quantity. (Quantity has to be supplied as per site requirement after finalizing of approval drawing)

Straight Run Bus Duct

End Flange i/c Making Cost

90 Degree Bend i/c Making Cost

Horizontal Offset /Vertical Offset / Combination Elbow / T Elbow i/c Making Cost

Phase Cross Over i/c Making Cost

Adopter Box

Tinned Copper Braided Flexibles for End Termination

Fabrication and Supply of 1250 Amps, 50 KA for 1 sec, Indoor IP 55 Sandwich Type Bus Trucking complying to IEC 61439-1 & 6 (Interconnetion from NE LT Panel to Hybrid PFC Panel & NE LT Panel to AMF Panel ), for use on 3 Phase 4 Wire, 415 Volts, 50 Hz AC supply with metal clad enclosure made of 1.6mm thick GI Sheet duly powder coated in convenient sections complete with 4 Nos. of Aluminium Bus Bars with Class F Insulation, necessary joints, elbow joints, expansion joints and bends, offsets, adopter box and Copper Flexible for Joints, external Aluminium earth strip 50x6mm, aluminium interconnection busbars, threaded rod for suspenders, angle iron bracket, fasteners, nuts and bolts, connecting to existing earthing system etc. complete as required. Note : Bus Trunking Shall be measured along the length of enclosure of Straigh Run/T Section/Bend. The aluminum strips which will go inside L.T Panels & end termination boxes of transformers shall not be taken in to measurement of bus truncking quantity. (Quantity has to be supplied as per site requirement after finalizing of approval drawing)

Straight Run Bus Duct

End Flange i/c Making Cost

90 Degree Bend i/c Making Cost

Horizontal Offset /Vertical Offset / Combination Elbow / T Elbow i/c Making Cost

Phase Cross Over i/c Making Cost

Adopter Box

Tinned Copper Braided Flexibles for End Termination

Fabrication and Supply of 1000 Amps, 50 KA for 1 sec, Indoor IP 55 Sandwich Type Bus Trucking complying to IEC 61439-1 & 6 (Interconnetion from DG Set to AMF Panel & AMF Panel to Essential LT Panel), for use on 3 Phase 4 Wire, 415 Volts, 50 Hz AC supply with metal clad enclosure made of 1.6mm thick GI Sheet duly powder coated in convenient sections complete with 4 Nos. of Aluminium Bus Bars with Class F Insulation, necessary joints, elbow joints, expansion joints and bends, offsets, adopter box and Copper Flexible for Joints, external Aluminium earth strip 50x6mm, aluminium interconnection busbars, threaded rod for suspenders, angle iron bracket, fasteners, nuts and bolts, connecting to existing earthing system etc. complete as required. Note : Bus Trunking Shall be measured along the length of enclosure of Straigh Run/T Section/Bend. The aluminum strips which will go inside L.T Panels & end termination boxes of transformers shall not be taken in to measurement of bus truncking quantity. (Quantity has to be supplied as per site requirement after finalizing of approval drawing)

Straight Run Bus Duct

End Flange i/c Making Cost

90 Degree Bend i/c Making Cost

Horizontal Offset /Vertical Offset / Combination Elbow / T Elbow i/c Making Cost

Phase Cross Over i/c Making Cost

Adopter Box

Tinned Copper Braided Flexibles for End Termination

Supply of 3 Core 185 Sq.mm sizes of XLPE insulated PVC sheathed aluminium conductor armoured power cable of 11 kV grade (11kV- earthed) conforming to IS: 7098 (Part-II) amended upto date.

Supply of XLPE insulated and PVC sheathed Copper armoured control cable of 1.1 KV grade conforming to IS 7098 (Part-I) 1988 as amended upto date and of following size as required:

4C x 2.5 Sq.mm

16C x 2.5 Sq.mm

Supply of XLPE insulated and PVC sheathed aluminum conductor armoured power cable of 1.1 KV grade conforming to IS 7098 (Part-I) 1988 as amended upto date and of following size as required:

4C x 25 Sq.mm

3.5C x 120 sq.mm

3.5C x 240 sq.mm

Supply of industrial type First Aid Box (suitable for min 10 persons) as approved by St. John Ambulance Brigade/ Indian Red Cross with metal cabinet conforming to IS 2217-1963 as required.

Supply of wall mountable portable Rechargable minimum of 15w Emergency LED light with minimum 6 hours backup battery, operating supply of 230V AC, auto ON & OFF etc as required.

Supply of 450 mm sweep, Heavy duty exhaust fan of 250 Watt with 2 years warranty, suitable for 1-Phase, 230V, 50Hz, with air delivery of minimun 6120 CMH, 1400 RPM including provision of louver shutter,powder coated metalic body,motor with copper winding etc., complete as required.

SH-II: Installation, Testing, Commissioning of Substation Equipments, Earthing, Dismantling, Laying of Cables and Other Associated Works

Installation, Testing & Commissioning of indoor type HT panels (mentioned at SH-I/item no. 1.01) shall be constructed from CRCA/ Aluminium Zinc coated steel sheet of 2 mm thickness, floor mounted metal enclosed, 11 KV VCB panel with 5 nos VCBs (2 INCOMER, 1 Bus Coupler with Riser & 2 OUTGOINGS), totally enclosed and fully interlocked, horizontal draw out, horizontal isolation type breaker as per IEC-62271-1,100,200, as amended up to date ,including provision of necessary "C" Channel arrangement of size 100x50x6 mm, earthing connections , interconnections and adjustment in the chequered plate for cable termination and panel positioning at site etc.,complete as required. (Location: Old Sub Station, VSI Airport, Sri Vijaya Puram)

Installation, Testing and Commissioning of 1000 kVA, 11/0.433 kV 3 Phase, 50Hz, Dyn 11 vector group copper wound transformer (mentioned at SH-I/ item no. 1.02) with OLTC, class F insulation, having impedance as per ECBC - 2017, associated with winding temperature indicator / digital controller temperature detector indoor type along with Surge arrestor on H.T. side, including provision of 150mm height RCC foundation from floor level for positioning of transformer , necessary "C" Channel arrangement of size 100x50x6 mm, railing, stopper, earthing connections, interconnections, control cabling for HT panel, adjustment in the chequered plate at site for cabling and necessary modifications for sandwich bus trunk termination etc., complete as required. (Location: Old Sub Station, VSI Airport, Sri Vijaya Puram)

Installation, Testing and Commissioning of Totally Type Tested Non-Essential Panel (Form -4B Construction) complying to IEC: 61439- 1/2 cubicle type LT panel ( mentioned at SH-I/Item No.1.03 ) , including provision of necessary "C" Channel arrangement of size 100x50x6 mm, earthing connections, interconnections and adjustment in the chequered plate for cable termination, panel positioning at site and necessary modifications for sandwich bus duct termination etc., complete as required. (Location: Old Sub Station, VSI Airport, Sri Vijaya Puram).

Installation, Testing and Commissioning of 500 KVA Prime Duty DG Set (mentioned at SH-I/Item No.1.04) including laying of fuel pipe lines, fixing of exaust piping, GSS duct, including provision of 150 mm high RCC foundation from floor level for positioning of DG set, including supply and laying of control cable from panel to DG set, earthing connections, interconnections and adjustment in the chequered plate for cable termination, necessary modifications for sandwich bus trunk termination and panel positioning at site etc., complete as required., necessary civil work opening in the existing wall to fix GSS duct, performing 06 Hrs Load test for the DG set at site with available load, laying and termination of control cables for engine control panel, batteries, etc. complete as required. (Location: Old Sub Station, VSI Airport, Sri Vijaya Puram)

Installation, Testing and Commissioning of Totally Type Tested AMF Panel (Form -4B Construction) complying to IEC: 61439- 1/2 cubicle type LT panel (mentioned at SH-I/Item No.1.05 ) , including provision of necessary "C" Channel arrangement of size 100x50x6 mm, earthing connections, interconnections and adjustment in the chequered plate for cable termination, panel positioning at site and necessary modifications for sandwich bus duct termination etc., complete as required. (Location: Old Sub Station, VSI Airport, Sri Vijaya Puram).

Installation, Testing and Commissioning of Totally Type Tested Essential Panel (Form -4B Construction) complying to IEC: 61439- 1/2 cubicle type LT panel ( mentioned at SH-I/Item No.1.06 ) , including provision of necessary "C" Channel arrangement of size 100x50x6 mm, earthing connections, interconnections and adjustment in the chequered plate for cable termination, panel positioning at site and necessary modifications for sandwich bus duct termination etc., complete as required. (Location: Old Sub Station, VSI Airport, Sri Vijaya Puram).

Installation, Testing and Commissioning of Totally Type Tested 400 kVAR Hybrid APFC Panel (Form -4B Construction) complying to IEC: 61439- 1/2 cubicle type LT panel ( mentioned at SH-I/Item No.1.07 ) , including provision of necessary "C" Channel arrangement of size 100x50x6 mm, earthing connections, interconnections and adjustment in the chequered plate for cable termination, panel positioning at site and necessary modifications for sandwich bus duct termination etc., complete as required. (Location: Old Sub Station, VSI Airport, Sri Vijaya Puram).

Installation, Testing and Commissioning of 2000 Amps Indoor Sandwich type Bus trunking system for following items by suspension on ceiling consist of straight Run bus duct, End Flange, 90 Degree bend, Offset, T section, phase cross over, Adaptor Box & Copper flexible for End Termination item mentioned at SH-I/Item No.1.08 including required aluminium interconnection busbars, aluminium external earthing strip including providing suitable size threaded rod & MS angle, nuts & bolts , suspender, angle iron bracket, steel fastners, connecting to earthing system etc. complete as required. (Location: Interconnetion from Transformer to Non- Essential LT Panel)

Straight Run Bus Duct

End Flange i/c Making Cost

90 Degree Bend i/c Making Cost

Horizontal Offset /Vertical Offset / Combination Elbow / T Elbow i/c Making Cost

Phase Cross Over i/c Making Cost

Adopter Box

Tinned Copper Braided Flexibles for End Termination

Installation, Testing and Commissioning of 1250 Amps Indoor Sandwich type Bus trunking system for following items by suspension on ceiling consist of straight Run bus duct, End Flange, 90 Degree bend, Offset, T section, phase cross over, Adaptor Box & Copper flexible for End Termination item mentioned at SH-I/Item No.1.09 including required aluminium interconnection busbars, aluminium external earthing strip including providing suitable size threaded rod & MS angle, nuts & bolts, suspender, angle iron bracket, steel fastners, connecting to earthing system etc. complete as required. (Interconnetion from NE LT Panel to Hybrid PFC Panel & NE LT Panel to AMF Panel)

Straight Run Bus Duct

End Flange i/c Making Cost

90 Degree Bend i/c Making Cost

Horizontal Offset /Vertical Offset / Combination Elbow / T Elbow i/c Making Cost

Phase Cross Over i/c Making Cost

Adopter Box

Tinned Copper Braided Flexibles for End Termination

Installation, Testing and Commissioning of 1000 Amps Indoor & outdoor Sandwich type Bus trunking system for following items by suspension on ceiling consist of straight Run bus duct, End Flange, 90 Degree bend, Offset, T section, phase cross over, Adaptor Box & Copper flexible for End Termination item mentioned at SH-I/Item No.1.10 including required aluminium interconnection busbars, aluminium external earthing strip including providing suitable size threaded rod & MS angle, nuts & bolts , suspender, angle iron bracket, steel fastners, connecting to earthing system etc. complete as required. (Interconnetion from DG Set to AMF Panel & AMF Panel to Essential LT Panel)

Straight Run Bus Duct

End Flange i/c Making Cost

90 Degree Bend i/c Making Cost

Horizontal Offset /Vertical Offset / Combination Elbow / T Elbow i/c Making Cost

Phase Cross Over i/c Making Cost

Adopter Box

Tinned Copper Braided Flexibles for End Termination

Supplying and installing following size of perforated painting with powder coating M.S. cable trays with perforation not more than 17.5%, in convenient sections, joined with connectors, suspended from the ceiling with M.S. suspenders including bolts & nuts, painting suspenders etc., as required.

300 mm width X 62.5 mm depth X 2 mm thickness

450 mm width X 62.5 mm depth X 2 mm thickness

600 mm width X 62.5 mm depth X 2 mm thickness

Supplying and installing following size of perferated painted with powder coating M.S cable trays bend with perferation not more than 17.5%, joined with connector, suspended from the celling with M.S . Suspenders including bolts & nuts, painting suspenders etc as required.

300 mm width X 62.5 mm depth X 2 mm thickness

450 mm width X 62.5 mm depth X 2 mm thickness

600 mm width X 62.5 mm depth X 2 mm thickness

Supplying and installing following size of perforated painted with powder coating M.S cable trays Tee with perforation not more than 17.5%, joined with connector, suspended from the celling with M.S . Suspenders including bolts & nuts, painting suspenders etc as required.

300 mm width X 62.5 mm depth X 2 mm thickness

450 mm width X 62.5 mm depth X 2 mm thickness

600 mm width X 62.5 mm depth X 2 mm thickness

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

Supplying and laying 25mm X 5mm G.I strip at 0.50 meter below ground as strip earth electrode , including connection / terminating with G.I nut, bolt, spring, washer etc as required. Jointing shall be done by overlaping and with 2 sets of brass nut bolt and spring washer spaced at 50 mm)

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

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

Earthing with copper earth plate 600 mm x 600 mm x 3 mm thick including accessories and proving masonary enclosure with cover plate having locking arragement and watering pipe of 2.7 meter long etc. with charcoal/ coke and salt as required.

Supplying and laying 25mm X 5mm copper strip at 0.50 meter below ground as strip earth electrode , including connection / terminating with nut, bolt, spring, washer etc as required. Jointing shall be done by overlaping and with 2 sets of brass nut bolt and spring washer spaced at 50 mm)

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 bold spring washer excavation and re- filling etc as required.

Providing and fixing of 25mmX 5 mm copper strip on surface or in recess for connection etc as required.

Providing and Fixing of 25 mm X 5 mm Copper strip in 40mm dia 'B' Class G.I. pipe from earth electrode including connection with G.I nut bolt, spray, washer, i/c excavation of bituminous/ concrete / pavement & excavation of Soil to the depth of 0.30 Mtrs from ground, refilling the Soil and with 1:2:4 concrete on top for 0.15 Mtrs after laying Pipe and making good the same to original surface etc. complete as required.

Supply and Fixing of nominal 2.5 mm thick (Width 1 Mtr),Class: B, for working voltage upto 11.0KV, PVC synthetic, electric insulated mats conforming to IS 15652-2006 having Dielectric strength of 45 KV, no adverse effect of mineral oil, high insulation resistance (Minimum 1,00,000 M Ω on wet condition with 5 KV meggar) with yellow coloured bordered reflective Adhesive sticker of width 50mm at borders etc., as required.

Supply and Fixing of nominal 2.0 mm thick (Width 1 Mtr) , Class: A, for working voltage upto 3.3 KV, PVC synthetic, electric insulated mats conforming to IS 15652-2006 having Dielectric strength of 30 KV, no adverse effect of mineral oil, high insulation resistance (Minimum 1,00,000 M Ω on wet condition with 5 KV meggar) with yellow coloured bordered reflective Adhesive sticker of width 50mm at borders etc., as required.

Providing & Laying of following size 'B' class G.I pipe with GI fittings i/c Bituminous road cutting excavation, laying the G. I Pipe in depth of 30cm, re-filling with cement concrete 1:2:4 and making good the same etc., as required.

50mm dia

100mm dia

Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size in the existing RCC/HUME/METAL pipe as required.

upto 35 Sq.mm

Above 35 sq mm and upto 95 sq mm

Above 95 sq mm and upto 185 sq mm

Above 185 sq mm and upto 400 sq mm

Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size in the existing masonry open duct as required.

upto 35 Sq.mm

Above 35 sq mm and upto 95 sq mm

Above 95 sq mm and upto 185 sq mm

Above 185 sq mm and upto 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 wall surface as required.

upto 35 Sq.mm

Above 35 sq mm and upto 95 sq mm

Above 95 sq mm and upto 185 sq mm

Above 185 sq mm and upto 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.

upto 35 Sq.mm

Above 35 sq mm and upto 95 sq mm

Above 95 sq mm and upto 185 sq mm

Above 185 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

Laying of one number PVC insulated and PVC sheathed/ XLPE power cable of 11 KV grade of following size in the existing masonary open duct as required.

above 120 sq.mm and upto 400 sq mm

Supplyind and making indoor end termination with brass compression gland and aluminium lugs for following size of XLPE insulated and PVC sheathed aluminum conductor armoured power cable of 1.1 KV grade as required.

4 X 25 Sq.mm

3.5 X 50 Sq.mm

3.5 X 95 Sq.mm

3.5X120 sq.mm

3.5X185 sq.mm

3.5X240 sq.mm

3.5X300 sq.mm

Supplyind 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 aluminum conductor cable of 1.1 KV grade as required.

4 X 25 Sq.mm

3.5 X 50 Sq.mm

3.5 X 95 Sq.mm

3.5X120 sq.mm

3.5X185 sq.mm

3.5X240 sq.mm

3.5X300 sq.mm

Supplyind 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 aluminum conductor cable of 11 KV grade as required.

Supplyind and making outdoor cable end termination with heat Shrinkable jointing Kit complete with all accessories including lugs suitable for following size of 3 core , XLPE aluminum conductor cable of 11 KV grade as required.

Dismantling of existing 250 KVA DG Set without acoustic enclosure alongwith AMF Panel from Old Power House including dismantling of fuel piping, exhaust piping, fuel tank, control cabling, Power cabling, earthing etc. and Handing Over of dismantled materials to AAI Store etc complete as required and as per the instructions of the Engineer-In-Charge.

Dismantling of existing 1000 KVA Oil Transformer from Old Power House including dismantling of existing busduct from Transformers to Non Essential Panel , earthing etc. and Handing Over of dismantled materials to AAI Store etc complete as required and as per the instructions of the Engineer-In-Charge.

Dismantling of existing 11 KV VCB HT Panel from Old Power House including dismantling of existing . and Handing Over of dismantled materials to AAI Store etc complete as required and as per the instructions of the Engineer-In-Charge.

Dismantling of existing LT Panels as detailed below including dismantling of Power cabling, earthing etc. and Handing Over of dismantled materials to AAI Store etc. complete as required and as per the instructions of the Engineer-In-Charge. (Location : Old Power House, VSI Airport) i) AMF Panel - 3 Nos ii) Change over Panel - 1 No

Dismantling of existing LT Panels as detailed below including dismantling of Power cabling, earthing etc. and Handing Over of dismantled materials to AAI Store etc. complete as required and as per the instructions of the Engineer-In-Charge. (Location : Old Power House, VSI Airport) i) Main Non Essential Panel - 1 No. ii) Main Essential Panel - 1 No .

Retrieval of HT/LT cables of different sizes from existing sub-station, including transportation to AAI store, stacking etc., as per the direction of Engineer in Charge complete as required.

Supply and Fixing of 10 mm thick SMC chequered plates on MS Channel of cable trench as per the instruction of Engineer-In-Charge etc. complete as required.

Supply, fabrication, Transportation and installation of the MS channel of size 50 x 50 x 5 mm thick on cable trench including civil works for altration, cutting, welding, drilling, fixing, grinding, applying redoxide primer of two coats and two coat of enamel paint of Black colour etc. complete as required. and as per the instructions of Engineer-In-Charge.

Supply and fixing of Galvanised mild steel Fire Bucket Stand with 4 Nos. of Galvanised mild steel fire buckets of 10 litre nominal capacity filled with dry sand conforming IS 2546 etc., complete as required.

Supply of Shock treatment chart of standared size in Two languages (English & Hindi) with aluminium frame and transparent polycarbonate cover sheet as required.

K B CONTRACT (P) LTD (BID ID -911291)

Surendra Infrastructure Pvt. Ltd. (BID ID -911084)

PRAGYA ELECTRIC AND ELECTRONICS CORPORATION (BID ID -911031)