SPECIAL REPAIRS AND UPGRADATION OF EXTERNAL POWER SUPPLY AT NOM VARUNA UNDER GE U ELECT SUPPLY DELHI CANTT 10

Amount

Excavation in trenches in soft and loose soil n.exc 1.5 mtr wide and n.exc. 1.5 mtr depth for laying and taking out of electric power cable and getting out all as specified and directed.

Taking out old damaged HT XLPE underground cable Three core 185 to 300 sqmm from trenches complete all as specified and as directed.

M&L for returing filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm in soft/loose soil complete all as specified and as directed..

M&L for removing of excavated material n exc. 50m and depostiting where directed at a level n exc. 1.5m in soils complete all as specified and as directed.

M & L for sand as in sand cushioning to underground PVC cable incl punning down of sand in layer all as specified. NOTE : Punned thickness shall be measured for payment.

Supply and lay ISI marked unreinforced precast concrete cable covers class HVP Type -1 with peak of size 300 x 180 x 40 mm. compete all as specified and directed

M&L for boring of holes under road/pavement/hard standing by trenchless technology using ultra sound technique and necessary machine including material and labour for HDPE pipe of 160 mm dia suitable for 04 Kg/cm working pressure. Wall thickness of pipe not less than 6.5 mm complete all as specified and as directed.

Supply and lay XLPE armoured power cable (heavy duty) 11 KV earth grade of size 300 sqmm 3 core, stranded compacted circular aluminium conductor as per IS : 7098 (part -2) of 2011, extruded semiconductor compound followed by helically wrapped copper tape, inner and outer sheathed extruded PVC FRLS type as per IS : 5831 armouring single layer galvinised steel strip complete all as specified and as directed.

- ditto - as item No 8 above but of size 185 sqmm 3 core.

Supply and fixing cable route indicator made of RCC with 8 mm TMT size 1.5 M height x 60 cm wide x 10 cm thick tapered on top visible above ground duly painted with synthetic enamel paint of yellow colour base and letters with black paint complete all as specified and directed.

Supply and fixing cable end terminal jointing kit for 11 KV earth grade cable for indoor terminal heat shrink type joint complete with jointing material and end clamp,earth connection and accessories suitable for 3 core XLPE armoured Aluminium conductor cable of size 300 sqmm complete all as specified and as directed..

Supply and fixing straight through jointing kit for 11 KV grade(E) heat shrink type joint complete with jointing material and end clamp,earth connection and accessories suitable for 3 core XLPE armoured Aluminium conductor cable of size 300 sqmm complete all as specified and as directed..

Supply and fix cable end terminal jointing kit for 11 KV earth grade cable for indoor terminal heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Aluminium conductor cable of size 185 sqmm complete all as specified and as directed.

Supply and fix cable jointing kit for 11 KV grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Aluminium conductor cable of size 185 sqmm complete all as specified and as directed.

M&L for plate Earthing complete with galvanized steel earth plate electrode 600x600x6 mm thick buried directly in ground (earth pit not less than 2.25 m deep below normal ground level) with top edge of the plate not less than 1.5 m below normal ground level with alternate layer of common salf and charcoal dust mixed & packed 150 mm thick homogeneous layer all around the GI earth plate and connected to galvanized earth strip 25 x 4 mm by means of bolts and nuts checknuts and washers of galvanized iron electric arc welding all joints all as specified and shown in electrical plate No 3 of SSR part I including necessary excavation and earth work in any type of soil PCC 1:3:6 type C1 chamber with RCC 1:2:4 type B1 40 mm thick cover with MS rod 8mm dia 150mm long reinforcement, watering funnel, 40 mm dia light grade pipe for protection of earth electrode 20 mm dia pipe for watering all as specified and as directed.

M&L for danger notice board of 1.6 mm thick mild steel,vitreous enamelled white with letters,figures and conventional skull and bones in signal red colour and fixed with MS clamps,bolts and nuts of approved size for HT 25 x 20 CM size complete all as specified and as directed.

S &F fire retardant/extinguishing electric insulated synthetic mat Insulatica - 2000 of 2.5 mm thick + 10% confirming to BIS : DOC No ET-02(5440) dated 30 Apr 2004, meeting requirement of IS-3043,IS-5216 (Part -I,II &II), IS-8437 and IEC-479 pub-I,tested for breakdiwn strength, tensile/Elongation ageing properties,insulation resistance , effect of acid, alkaline, diesel and transformer oil leakage current test, fire test etc, having minimum width of 1000mm + 20mm including all allied materials such as PU-Resin, chemical bound (Hasdornor) special PVC adhesive liquid primer etc of required quantity to complete the job as per site requirement of all voltages not exceeding 11 KV system without HT trolley movement complete all as specified and as directed..

Supplying, installing, testing and commissioning of Indoor arc flash protected Draw-Out with roll on floor type Vacuum Circuit Breaker Panel , rated for 11kV, 1250Amp, 26.3kA/3-sec, comprising of 2 No. Incomer, 01 No. Bus Coupler and 04 Nos. Outgoing VCB Panels and floor-mounted Bus PTs for each bus section, confirming to IEC 62271-200, Internal Arc Classified IAC AFLR – 26.3kA for 1sec, Accessibility Class LSC2B-PM Class, comprising of 1250Amp, continuous rated Copper busbars and droppers, 02nos. Rack-In-Rack-Out Handles, structure made from AluZinc/GI sheets to prevent corrosion and rusting. The complete panel incl. HT and LT chamber with FRLS wiring shall be manufactured by approved OEM at its own facility, and same will be verified via stage/final inspection. The panel shall consist of following panels.

(A) 02 x Incomer Panel, each comprising of :- (i) 11kV, 1250Amp, 26.3kA/3-sec, Draw-Out Vacuum Circuit Breaker as per IEC-62271-100 with roll on floor type Vacuum Circuit Breaker having 03 Nos. vacuum bottles of same make as of circuit breaker and panel, motorized spring charging mechanism (230VAC) with integral spring charging handle for manual charging, associated push-buttons, anti-pumping feature, and associated Shunt Trip/Close Coils (24 VDC). (ii) Current Transformers 11kV, 300-150/1-1-1, Core1: Class 5P10, 5VA, Core2: Class 0.5, 5VA, Core3: Class PS-X - Set of 03 Nos. (iii) Potential Transformers, Draw-out type for easy maintenance, 11kV/rt3:110V/rt3, 50VA, Cl.0.5 with associated gun-type HRC fuses and MCBs for HT/LT isolation - Set of 03 Nos. (iv) Main Protection Relay shall be numerical IED Relay confirming to IEC60255, having 04CT+05PT Inputs with microprocessor based protection scheme for tripping the breaker on various faults like (a) Directional over-current or earth-fault in any of the three phases,

(b) Synchronism and Energizing Check before breaker closing to prevent un-syncronized mixing of supplies (c) circuit-breaker-failure alarm, (d) interpanel tripping/blocking signals via GOOSE based peer-to-peer communication, on IEC61850 protocol. (e) Integrted arc flash protection with current and light sensing The relay shall be communicable on IEC 61850 GOOSE platform over RJ-45/USB/FO port, and fully integrated with the feeder, internally capturing feeder statuses incl. various status, Line-Current, Line-Voltage, Breaker On/Off/Spring.Chrgd, Trip Circuit Failure (from TCS relay), AC Supply Fail, PT Fuse failure relay, Local-Remote etc. and display locally on a built-in back-lit LCD screen with mimic as a Single-Line-Diagram with power & frequency measurements and suitably labelled status LEDs. Relay setting should be possible through inbuilt software or through addtional software supplied by the relay manufacturer. (v) Metering Equipment including:- (a) 01 x Digital Voltmeter (Acc.Cl.0.5), 01 x Digital Ammeter

(Acc.Cl.0.5), (b) 01no. Multi-Function-Meter (Acc.Cl.0.5) shall be provided with LCD display for measuring current, voltage, power, power-factor and energy-parameters, Total Harmonic Distortion and Max. Demand Indication, HV KWH meter multifunction energy meters %A OR 1 A AC input HV networks AC auxillary supply with CT . Measurement : V,I,P,Q,S,PF,F,Ea,Er and Es, THD for V&I and individual odd harmonics V&I upto row 25 with pulse output module,communication module,analague module,control module, memory module,ethernet module and temperature module the same shall be communicable on ModBus via RS485 port all as specified and directed. Make : HPL/L&T. (vi) LED Indications :- (a) Breaker ON/OFF/TRIP/Spring-Charged, (b) R-Y-B, (c) DC Available LED with push-button (d) AC Supply Fail (e) Trip Circuit Healthy

(vii) 08-Window Annunciator with Hooter to indicate following alarms :- (a) OC Trip, (b) EF Trip (c) Trip Circuit Failure, (d) Inter-Tripping Fault, (e) Synchro-Check. (f) PT Fuse Failure The Annunciator will be complete with required Acknowledge/Test buttons as required (viii) Control Equipment incl. :- (a) 01 x TNC Switch, (b) 01 x Local/Remote Switch, (c) 01 x Emergency Trip Push Button, (d) MCBs for AC (e) MCBs for DC (f) Heater Switch with Thermostat - 01no. (g) 3-pin socket with ON/OFF switch - 01no. (h) LED Lamp with ON/OFF switch - 01no.

(ix) Flush mounted Auxillary Protection Relays incl:- (a) Trip Circuit Supervision Relay, (b) Master trip Relay, (c) PT Fuse failure relay. (d) DC Supervision Scheme (x) Suitable Disconnecting Link type terminal arrangement shall be provided for interfacing PS-Class CTs installed in the panel for achieving the required protection. (B) 01 x Bus Coupler Panel, each comprising of :- (i) 11kV, 1250Amp, 26.3KA/3-sec, Draw-Out Vacuum Circuit Breaker as per IEC-62271-100 with roll on floor type Vacuum Circuit Breaker having 03nos. vacuum bottles of same make as of circuit breaker and panel, motorized spring charging mechanism (230VAC) with integral spring charging handle for manual charging, associated push-buttons, anti-pumping feature, and associated Shunt Trip/Close Coils (24 VDC). (ii) Current Transformers 11kV, 300-150/1-1-1, Core1: Class 5P10, 5VA, Core2: Class 0.5, 5VA, Core3: Class PS-X - Set of 03 Nos.

(iii) Main Protection Relay shall be numerical IED Relay confirming to IEC60255, having 04PT Inputs with microprocessor based protection scheme for tripping the breaker on various faults like (a) Synchronism and Energizing Check before bus-coupler closing to prevent un-syncronized mixing of supplies (b) circuit-breaker-failure alarm. (c) circuit-breaker-failures and interpanel tripping/blocking signals via GOOSE based peer-to-peer communication, on IEC61850 protocol. The relay shall be fully integrated with the feeder, internally capturing feeder statuses incl. various status, Bus-Voltage and display the same locally on a built-in back-lit LCD screen with mimic as a Single-Line-Diagram with power & frequency measurements and suitably labelled status LEDs. Relay setting should be possible through inbuilt software or through addtional software supplied by the relay manufacturer.

(iv) LED Indications - (a) Breaker ON/OFF/TRIP/Spring-Charged (b) Trip Circuit Healthy (v) Control Equipment incl. :- (a) 01 x TNC Switch, (b) 01 x Local/Remote Switch, (c) 01 x Emergency Trip Push Button, (d) MCBs for AC (e) MCBs for DC (f) Heater Switch with Thermostat - 01 No. (g) 3-pin socket with ON/OFF switch - 01 No. (h) LED Lamp with ON/OFF switch - 01 No. (vi) Flush mounted Auxillary Protection Relays incl. (a) Trip Circuit Supervision Relay, (b) Master trip Relay,

(vii) 08-Window Annunciator with Hooter to indicate following alarms :- (a) Trip Circuit Failure, (b) Inter-Tripping Fault, (c) Synchro-Check. (d) PT Fuse Failure The Annunciator will be complete with required Acknowledge/Test buttons as required (C) 04 x Outgoing Panel, each comprising of :- (i) 11kV, 630Amp, 26.3KA/3-sec, Draw-Out Vacuum Circuit Breaker as per IEC-62271-100. Vacuum Circuit Breaker having 03nos. vacuum bottles of same make as of circuit breaker and panel, motorized spring charging mechanism (230VAC) with integral spring charging handle for manual charging, associated push-buttons, anti-pumping feature, and associated Shunt Trip/Close Coils (24 VDC). (ii) Current Transformers 11kV, 100/1-1, Core1: Class 5P10, 10VA, Core2: Class 0.5, 10VA - Set of 09 Nos and 11kV, 200/1-1, Core1: Class 5P10, 10VA, Core2: Class 0.5, 10VA - Set of 03 Nos

(iii) Main Protection Relay shall be numerical IED Relay confirming to IEC60255, having 04CT Inputs with microprocessor based protection scheme for tripping the breaker on various faults like (a) over-current or earth-fault in any of the three phases, (b) circuit-breaker-failure alarm, (c) interpanel tripping/blocking signals via GOOSE based peer-to-peer communication, on IEC61850 protocol. (d) Integrted arc flash protection with current and light sensing. (e ) Tranformer protection (Marshalling Box and Buchhloz relay). The relay shall be communicable on IEC 61850 GOOSE platform over RJ-45/USB/FO port, and fully integrated with the feeder, internally capturing feeder statuses incl. various status, Line-Current, Breaker On/Off/Spring.Chrgd, Trip Circuit Failure (from TCS relay), Local-Remote etc. and display locally on a built-in back-lit LCD screen with mimic as a Single-Line-Diagram with current measurements and suitably labelled status LEDs. Relay setting should be possible through inbuilt software or through addtional software supplied by the relay manufacturer.

(iv) Metering Equipment including:- (a) 01 x Digital Voltmeter (Acc.Cl.0.5), 01 x Digital Ammeter (Acc.Cl.0.5), (b) 01no. Multi-Function-Meter (Acc.Cl.0.5) shall be provided with LCD display for measuring current, voltage, power, power-factor and energy-parameters, Total Harmonic Distortion and Max. Demand Indication, same shall be communicable on ModBus via RS485 port. (v) LED Indications - (a) Breaker ON/OFF/TRIP/Spring-Charged, (b) Trip Circuit Healthy (vi) 08-Window Annunciator with Hooter to indicate following alarms :- (a) OC Trip, (b) EF Trip (c) Trip Circuit Failure, (d) Inter-Tripping Fault, The Annunciator will be complete with required Acknowledge/Test buttons as required (vii) Control Equipment incl.

(a) 01 x TNC Switch, (b) 01 x Emergency Trip Push Button, (c) 01 x Local/Remote Switch, (d) MCBs for AC/DC isolation (e) Heater Switch with Thermostat - 01no. (f) 3-pin socket with ON/OFF switch - 01no. (g) LEDLamp with ON/OFF switch - 01no. (viii) Flush mounted Auxillary Protection Relays incl. (a) Trip Circuit Supervision Relay, (b) Master trip Relay, (ix) Transformer protection each comprising of :- (a) Oil Temperature high. (b) Winding Temperature high. (c ) Tank oil level low. (d) OLTC oil level low. (e) Buchhloz relay trip or sudden gas and sudden oil pressure relay trip. (f) Pressure relief.

(D) All the Incoming ,outgoing VCBs and coupler shall be complete with all allied items and accessories, including:- (i) Cost of construction of foundation as per manufacturer design, including foundation frame (supplied by OEM), channels etc. for HT Panel as required at site are deemed to be included in the quoted rate. (ii) Each VCB panel being floor-mounted, air-insulated, fully-compartmentalizeds The OEM shall supervise and certify the commissioning/charging of equipment. (iii) Foundation frames shall be inclusive in the scope of supply of OEM. (iv) Suitable Disconnecting cum Shorting Link type terminal arrangement in Incomer panels shall be provided for interfacing PS-Class CTs installed in the panel with upstream Transformer buchholz relay situated in the 11 kV CRP for achieving the required protection. Knee point voltage, CT-Ratio and other details to be submitted by manufacturer. NOTE :- The cost Bus riser/Dummy panel as required at site deemed to be included in quoted rates.

Supply and installation , testing and commissioning of 11 KV, 630 Amps, 21 KA/3 sec outdoor type Ring main unit IP 54 protection plug in type extensible on one side SF 6 gas insulated two incoming and three outgoing (5 way ) with metering plate form mounted compact switch gear consisting of 02 Nos load break switch as incommer and 03 Nos outgoing VCBs , all live parts, bus bars VCB will be enclosed in robotically/manual welded minimum 2 mm thick stainless steel tank filled with SF 6 gas IP 67 Degree of protection and tested for internal arc 20 KA/1 sec as per latest IEC 62271-200 complete installed on plateform as recommended by OEM, including the cost of PCC foundation for placing of RMU on plinth complete all as specified and directed. The unit shall include the following with all necessary standard fitting required at site: -

(A) Incoming Load Break Module - 02 Nos each switching unit shall be designed as a three position switch. This three function switch combines the functions of switch disconnector and earthing switch cables switch 12 KV, 630 Amp, 21 KA - 01 Set. Snap action mechanism for motorised and manual(Both) operation with integrated earthing switch - 01 Nos. Cable bushing 630 Amp standard C bushing - 01. Fault passage indicator, On(N-1) load break switch where n= no of load break switch >>s/c & E/F FPI with digital display to be added for detection of cable fault. ON, OFF, TRIP, EARTH mechanical indication on the front mimic of the panel - 01. Capacitive voltage indication fixed type LED display - 01. Cable box for termination of cable up to 1 No. x 300 sq.mm - 01. Cable cover standard - 01. Set of 12kV Cable Termination Boots - 01 set of three. Cable entry bottom, front - 01.

(B) (i) Out going VCBs - 03 No consisting of following - The unit consist of vaccum circuit breaker in combination with a three position switch. The three position switch fulfills the operation of the disconnector function and earthing function circuits breaker unit is equipped with an over current transformer for the protection of distribution Transformer/circuit vaccum circuit breaker 12 KV, not less than 630 A, 21 KA - 01. Spring assisted closing with stored Energy triping mechanism for motorised operation with integrated earthing switch - 01. live cable LED indicators thrugh capacitor voltage dividers mounted on the bushings push button for breaker trip - 01 sec O/C + E/F self powered numerical protection relay with low and High set for Over current and earth fault Relay should have facility to display the maximum loaded phase current also relay shall record minimum 5 fault records with time stamping - 01 Alaram trip indication 6 window annunciator for transformer faults Mechanical ON/OFF/EARTH indication -01. Auxliary contacts on load switch are 1 No+2NC. Self powered electronic numerical protection relay providing 3 over-currents & 1 E/F protection - 01, shunt trip coil 24 V DC-01 capactive voltage indication fixed type LED display -01 ON/OFF/Trip mechanical indication on the front mimic of panel-01 cable box for termination boots-01. Metering Equipment incl. 01 x Digital Voltmeter (Acc.Cl.0.5), 01 x Digital Ammeter (Acc.Cl.0.5), 01 x Tri-VectorMeter (Acc.Cl.0.5) Auxliary relay for transformer protection -06 Nos. (ii) Out going VCBs - 03 No, One consisting of CT 300-150/1-1-1 -5p10.2.5VA- 09.

(C ) Additional equipment deliverd separately or mounted seperatly, Bus connected with battery charger and inbuilt battries for motor power supply-01 (i) PT ratio 11KV/3/110/v3, 100 va, 0.5 class for measurement with volts meter(ii) Auxliary transformer of 11KV/230V, 1 KVA for powering the motors and battery charger (iii ) 24 V DC battery charger and battries for motor power supply. Standard mano meter -01, Operating handle - 02 , cable clamping provision(standard)-01 Operation and maintance manual - o1, installation and commissioning manual - 01, cost of PCC works for placing RMU on plinth is deemed to be included in the cost, Height of plinth shouldnot be less than 0.45 mtrs from ground level.

NOTE :- (a)The above module consisting of two Load break Switch and 03 VCBs shall be alligned appropriately and must have electrical and mechanical interlocking as per latest electrical safety norms including installation on plateform as recommended by OEM complete.

M&L for PCC in foundation filling and mass concrete type C2 (1:4:8) using 40 mm grded aggregate for foundation complete all as specified

M& L for PCC type B1 (1:2:4) using 20 mm graded aggregate for pedestal/coping etc including use and waste of formwork complete all as specified

M&L for brick work with Sub Class 'B bricks straight OR curved on plan exc 6 M mean radius built in cement morter 1:6 complete all as specified and directed.

M &L for plastering hacking for keyscrubbing down with water etc and rendering 10 mm thick in cement plaster 1 : 4, finishing the surfaces fair and even, complete all as specified and directed.

S&F of angle/Flat iron of any size for fencing to sub station/RMU fixed as vertical/horizontal member for frame to wire mesh including cutting to shape, drilled and countersunk for screw including welding and grouted in ground with PCC type B1 (1:2:4) using 20 mm graded aggregate for pedestal of angle at site and hinged for gate complete , confirming to Fe290.Gde-E-165 complete all as specified and directed

NOTE :- The cost of Excavation and earth work , Brick work and PCC for item No 24 above shall be paid seperatly under respective items of this BOQ.

S&F 4 to 5 mm thick mild steel wire 80x40 mm mesh up into mattressess or cages, lapped wired and fixed in position including welded for fencing to sub Station all as specified and directed.

Disconnecting of all HT/LT connection electrically and machanically of Indoor OCB/VCB panel any size/capacity, taking out from Sub- Station carefully including transportation to MES yard, complete all as specified and directed.

Vijay Electricals

MV Engineers And Contractors

Ridhi engineers and builders

mayur enterprises

M P TYAGI ENGINEERS AND CONTRACTORS

Commercial Traders

DS CONSTRUCTION