PROVN OF NEW TRANSFORMER TO CATER THE ADDL LOADS WRT COMN ARNG EST AT SIGNAL ENCLAVE AT 1 AHQ SIGNAL REGT AND PROVN OF HT CABLE, 11000 VOLT AND RING MAIN UNIT AT DIPAC UNDER GE U ELECTRIC SUPPLY DELHI CANTT10

Amount

Supplying , installation, testing and commissioning of 11 KV, 630 Amps having short circuit capacity 21kA/3-sec, Outdoor (IP54), RMU (Ring main unit) 8 way, comprising of 02 Nos motorized operated Load Break Switch and 06 Nos 630 Amp Fixed-Type motorized spring-charging VCB electrolytic grade copper busbars all inside single, gas-filled, robotically welded stainless steel 304 (Non Ferrite Non Megnetic Grade) tank with min. thickness 3+0.5 mm, IP 67 Degree of Protection , internal-arc classified 21kA/1sec, on-site-repairable with site replacable bushing/coupling/mechanism, gas refilling etc. The enclosure shall have padlockable double-door access with anti-theft higes, fully covering the front facia and cable boxes to ensure fail-safe anti-theft protection. The unit alongwith Bus-connected, fixed-type Auxiliary transformer shall include the following along with all necessary accessories and fittings as required at site.

(A) 02 Nos. Incoming Load Break Switch module each consisting of following accessories :- (i) Each switching-unit is designed as a three position switch. This three function switch combines the functions of switch-disconnector and earthing switch. (ii) 11kV, 630A Load Break Switch with interlocked line-earthing scheme both short circuit current - 21kA/3-sec, Making Capacity - 50kAp -01 No (iii) Auxiliary contacts - 1NO + 1NC-01 No (iv) Spring-assisted snap-action motorized mechanism with un-inhibited operating shaft for emergency manual operation with integrated earthing switch -01 No (v) Cable terminals (site replacable Cable bushings situated not beyond 300mm from cable-cover to allow ease of access for installation/testing/replacement purposes) with double-door arrangement for enhanced safety (IP54+IP3X) interlocked to prevent access upto 11 KV , 300 Sqmm , 3 Core , XLPE AL cable termination in live-condition. Each Set of 03 (vi) Right angle boots (push on type)-Each Set of 03 (vii) Arc proof cable covers having cable entry from bottom , front with Interlocking mechanism including earth switch -01 No (viii) Capacitive voltage indication fixed type system as per IEC61243 with LED - 01 Set (ix) Fault Passage Indicator - It is to be provided for each incomer load break unit, FPI with LED/digital display to be added for detection of cable fault-01 No (x) ON, OFF, EARTH mechanical indication on the front mimic of the panel - 01 No

(B) 06 Nos. Outgoing VCB module each consisting of following accessories :- (i) Each function-unit consists of a vacuum-circuit breaker in combination with a three position-switch.The three-position-switch fulfills the operation of the disconnector-function and earthing function. (ii) 11kV, 630A Fixed-Type VCB module with series disconnector cum earthing switch of short circuit breaking current/withstand - 21kA/3-sec, Making Capacity - 50kAp-01 No (iii) Aux. contacts - 1NO+1NC-01 No (iv) Stored-energy motorized high-endurance spring charging mechanism (M1+), with inbuilt spring-charging lever and mechanically latched ON/OFF push-buttons to allow handle-less and un-inhibited operation -01 No (v) Cable terminals (site replacable Cable bushings situated not beyond 300mm from cable-cover to allow ease of access for installation/testing/replacement purposes) with double-door arrangement for enhanced safety (IP54+IP3X) interlocked to prevent access upto 11 KV , 150 Sqmm , 3 Core, XLPE AL cable termination in live-condition. Each Set of 3 (vi) Right angle boots (push on type)-Each set of 3

(vii) 3O/C + 1E/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. Relay shall be communicable with RS 485 Port on MODBUS Protocol-01 No (viii) Associated ring-core cast-resin insulated CTs 100/1 Amp , 2.5 VA, 10P10 for protection (Each Set of 3)-01 Nos and CTs 50/1 Amp , 2.5 VA, 10P10 for protection (Each Set of 3)-05 Nos (ix) Arc proof cable covers with self Interlocking mechanism with earth switch -01 No (x) Capacitive voltage indication fixed type system as per IEC61243 with LED -01 No (xi) Push button for breaker trip (xii) Shunt trip coil 24V DC - 01 (xiii) ON, OFF, TRIP mechanical indication on the front mimic of the panel - 01. (xiv) Emergency Trip Push Button - 01.

(C) 01 No. Bus-connected, fixed-type Auxiliary transformer to provide required aux. supply and metering consisting of following accessories :- (i) 1-Ph (11kV/rt3):230VAC, 500VA Auxiliary transformer-01 No (ii) 2x12 Volt DC battery-01 Set (iii) Battery charger-01 No (iv) HRC fuse-links for primary side isolation and AC/DC MCBs for secondary isolation-01 Set (v) Voltmeter & RYB LED Indications to confirm AC/DC supply availability-01 Set (vi) Anti-condensation space-heater-01 No (vii) CFL lamp for illumination and 3-pin socket with switch -01 No

(D) Additional equipment deliverd separately or mounted seperately :- (i) Operationg Handle for Manual Isolator/Disconnector/Earthing Operation-02 Nos (ii) Standard Manometer -01 No (iii) Operation and Maintenance Manual -01 No (iv) Installation & Commissioning Manual -01 No (v) Cable clamping provision (standard) -01No

Note:- (i) It is preferable to have all feeder-switches inside single stainless steel compartment with incomer feeders at the extremities to prevent chances of failure due to plug-in coupling arrangement. (ii) Necessay interclocking arrangement shall be provided for safety and operations (iii) Above switchgear shall confirm to relevant IEC (62271-200) for design, manufacturing and internal arc compliance. Any claims towards internal arc compliance, number of mechanical/electrical/short-circuit operations, gas-leakage rates etc. shall not be accepted unless proven via type-test reports of model being offered. (iv) Cost of provn of plinth for RMU as per OEM drawing is deemed to be included in the cost.

Earthing complete with galvanised steel earth plate electrode 60 cm x60 cm x 6 mm thick buried directly in ground ,Earth pit not less than 2.25 meter deep below ground level) with top edge of plate not less than 1.5 meter below normal ground level ,connected to and including galvanised iron earth wire 32 X 6 mm by means of nut, bolts, check nuts and washers of galvanised iron or steel and provision of charcoal dust and common salt packed all around the earth plate including necessary excavation and earth work in soft/loose soil and testing complete all as specified and directed and shown in electrical plate number 5 of MES SSR part-I(1991) (a) Excavation and earth work for drilling hole for electrode in soft/loose Soil. (b) PCC pit in cement concrete 1:2:4 type B-1, Pre cast RCC cover with suitable handle 40 mm thick in PCC 1:2:4 type B-1, reinforced with welded steel wire fabric weighing not less than1.87 Kg/ Sq meter. (c) Funnel with watering pipe of GI 20 mm nominal bore light grade and lugs etc complete all as specified and directed (d) 40 mm nominal bore medium grade GI protection pipe for protection of earthing lead complete all as specified and directed. (e) Requisite quantity of common salt and charcoal. (f) Testing of earthing.

Supplying, laying, testing and connecting XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable (heavy duty) with multistranded aluminum conductors, 11 KV grade, IS 7098 marked, suitable for HT 11 KV(E) system, laid in trenches / ducts / encased in GI pipe / fixed to pole, including jointing & testing complete all as specified and directed of size 150 sqmm 3 core.

Supply and fix Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 to 185 sqmm 3 core.

Excavation in trenches not exc. 1.5 m wide and not exc 1.5 mtr deep in soft/losse soil) for laying of cables or GI pipe and getting out and levelling of bottom suface to required level all as specified and directed by Engineer- in- Charge.

Material and labour for river washed and screened, dry sand for filling in trenches below and around underground cables for cushioning of cables etc, complete all as specified. Note : Measurement shall be taken after punning down.

Supplying and laying un-reinforced precast concrete cable cover, class HVP,type 1 with peak, size 300mm x 180mm x 40mm

Returning filling in, Including spreading, levelling,. Watering and well ramming soil in layers not exceeding 25 cm thick all as specified and directed.

Removing excavated material (ie soil) from site to a distance n. exc 50 mtrs away and depositing where directed at a level n. exc. 1.5 mtr above the starting point all as specified and directed by Engineer-in-Charge.

M/L for Demolition of road/path /concrete in ground floors and pavings n exc 15 cm thickness (below or above ground level) .complete all as specified and as directed.

M/L for cement concrete type B-1, 1:2:4 (20mm graded aggregate) 150 mm thick complete all as specified and as directed.

Dismantling of HT Steel pole safely by dismantling of PCC and depositing to MES store complete all as specified and directed by Engineer-in-charge.

Dismantling of cross Arms of MS channel or Angle iron or flat iron sections from steel pole and deposited to MES store complete all as specified and directed by Engineer-in-charge.

Dismantling air break gang operated switches vertical/horizontal mounted including insulators and operating mechanism and deposited to MES store complete all as specified and directed by Engineer-in-charge.

Supply & Lay & testing cable under ground XLPE insulated screened PVC bedded, galvanised strip or wire armoured, electric power cables (heavy duty) 120 Sqmm 3 core 11 KV grade with starnded aluminium conductor complete all as specified and directed by Engineer in charge.

Supply & fix cable end jointing kit for 11 KV grade cable for outdoor type termination heat shrinkable joint complete with jointing material and accessoies suitable for 3 core XLPE armoured aluminium conductor cable of size 120 Sqmm complete all as specified and directed

Supply & fix cable end jointing kit for 11 KV grade cable for indoor type termination heat shrinkable joint complete with jointing material and accessoies suitable for 3 core XLPE armoured aluminium conductor cable of size 120 Sqmm complete all as specified and directed

Supply & install ,testing and commissioning of transformer as per IS : 1180 part - I, EEL-2 step down, copper Cu 99.9% purity, electrolytic grade wound 11KV/433 Volts (at no load) AC 3 phase 50 Hz 200 KVA capacity, core type, oil immersed naturally air cooled, oil natural air natural (ON/AN) , with external cooling tubes, delta connected on primary side (HV) and star connected on secondary side (LV) in accordance with vector group DYn-11 with neutral brought out on secondry side (LV) and having taping at +5% to -10% in steps of 2.5% on HV side to be changed by means of hand operated off load tap changer gear. The maximum temperature rise should not exceed 50 degree celsius in oil and 55 degree celsius in HV/LV winding when measured by resistance method after continuous full load run on an ambient temp of 40 degree celsius transformer shall be of BOLTLESS core design.

Transformer shall be double wound, core type with low loss, non ageing, high permeability CRGO prime core grade M-4 or better grade, perfectly insulated and clamped to minimize noise and vibrations. The transformer shall be IS/IEC 60076 and as per IS-1180 part - I of 2014 marked. Flux Density at rated voltage and rated frequency should be 1.688 T the transformer shall be designed as per CBIP manual 317 for over-fluxing witstand capacity of 110% continuous, 125% for 1 minute and 140% for 5 seconds. and over loading capacity of transformer shall be as per 6600 , Noise level as per NEMA TR1, with class A insulation, Tank pressure, Vaccum witstand capability & minimum clearances as per CBIP manual, No Load Current within 1% to 2% of Full load current, Tranformer losses shall not exceed the loses mentioned in Table 6 of IS: 1180 of 2014 Part - I with Energy Effeciency Level - 2 and shall comprise of the following accessories :-

(a) One cable box on HT side (Primary side) consisting of three no. porcelain bushing with copper rods, complete with nuts and washer , with cable glands suitable for reception/taking out 3 core 120 Sq mm, HT 11000 volts grade, XLPE insulated and PVC sheathed, heavy duty , armoured cables including jointing materials complete.

(b) One cable box on LT side(secondary side) consisting of four no. porcelain bushing with copper rods, complete with nuts and washers, with cable glands suitable for reception/taking out single core /3.5 core of rated size/ runs of secondary currents, LT 1100 volts grade, PVC/XLPE insulated and PVC sheathed, heavy duty, armoured cables including jointing materials complete. with Bi metallic flexible connectors and copper bus bars of rated capacity with insulators support to be provided (c) Conservator with filter type drain valve and oil level gauge. (d) De-hydrating breather with first fill of dehydrating agent (Silica Gel) (e) Explosive vent, Thermometer pocket on tank cover, oil level gauge, Oil drain filter valve, Jacking / Lifting lugs, Marshalling Box, IP 55, with oil filling hole with cap/plug with connection plate complete, Air release valve plug and four no. plain solid cast steel detachable rollers. (f) One no 100 mm dia, dial type thermometer, vapour pressure type, having range 0-120 degree Celsius with metal guard having maximum perimeter temperature reading indicator with re-setting device. (g) Two earthing terminals on tank cover to facilitate fixing of 50x6mm galvanised iron earth strip for earthing of body. (h) Rating plate and terminal marking plate. (j) Extra bushing for neutral in the LT cable box for providing independent set of earthing for neutral.

(k) First fill of new and unused transformer oil, IS-335 of 1986 marked, filtered and tested up to 50 KV dielectric strength at 2.5 mm air gap between testing electrodes, specific resistance at 27 Degree Celsius Ohm-ohm 500 x 10 the power12, water content 50 PPM, Dielectric dissipation factor (tan Delta at 90 degree Celsius) 0.005, Neutralisation value mg of KOH/gm of oil 0.03, Inter facial tension N/M at 27 Degree Celsius - 0.04, flash point 140 Degree Celsius and sludge 0.1 % by weight. (l) Detachable Rollers of adequate load capacity and no. of channels, embedded in floor, for movement of transformer. (m) Top and Bottom Filter cum drain Valves with Dummy (n) 6" Oil temperature indicator and winding temperature indicator with alarm and Trip contacts (o) Radiators shall be of Detachable type with proper butter fly valves

Note for Item 18 (i) Cost of controll cable from transformer to VCB panel and construction of foundation as per manufacturer design, including foundation frame (supplied by OEM), channels etc. as required at site are deemed to be included in the quoted rate.

Supplying, installing, testing and commissioning of Indoor arc flash protected Draw-Out with roll on floor type Vacuum Circuit Breaker Panel , rated for 11kV, 630 Amp, 25kA/3-sec, comprising of Out Going VCB Panels confirming to IEC 62271-200, and IS 13118, Accessibility Class LSC2B-PM Class, comprising of 630 Amp, continuous rated Insulated Copper busbars and droppers in all bus / breaker/ adaptor and cable chambers, 02nos. Rack-In-Rack-Out Handles, structure made from AluZinc/GI/ Powder Coated CRCA sheets to prevent corrosion and rusting.The complete panel incl. HT and LT chamber with FRLS wiring and acessories shall be manufactured by approved OEM at its own mancufacturing in house facility, and same will be verified via stage/final inspection. system house integrator / channel partner products are not accepted .The Make of the VCB, Panel And Relay Shall be of the Same Make/OEM The panel shall consist the cost of adaptor panel with Rated bus bars and supporting insulators for connecting to the existing VCB panel of siemens make of upper signal substation

(A) (i) 11kV, 630Amp, 25KA/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 (24VDC). (ii) Current Transformers 11kV, 50-25/1-1, Core3: Class 5P10, 5VA, Core2: Class 0.5, 5VA - Set of 03 Nos.( for measuring, relaying ). (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 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

(b) All Multi-function-meters shall be connected in a ModBus loop terminating into 01 No. ModBus-to-TCP/IP converter to be provided for sending data to SCADA console via networking switch.

(viii) 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) LED Lamp with ON/OFF switch - 01no.

(ix) Flush mounted Auxillary Protection Relays incl. (a) Trip Circuit Supervision Relay, (b) Master trip Relay,

(x) Suitable Disconnecting Link type terminal arrangement shall be provided for interfacing PS-Class CTs installed in the panel with existing VCB panel relay suituated in the 11 KV CRP for achieving the required protection.

Note for Item 19 (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-compartmentalized The OEM shall supervise and certify the commissioning/charging of equipment. (iii) Foundation frames shall be inclusive in the scope of supply of OEM.

Supply and laying or fixing or passing through pipe XLPE insulated 1100 volts grade underground cable with aluminum conductor armoured with steel strip or wire cross sectional area 300 sqmm 3.5 core

Supply and laying or fixing or passing through pipe XLPE insulated 1100 volts grade underground cable with aluminum conductor armoured with steel strip or wire cross sectional area 120 sqmm 3.5 core

S&Laying sub class B bricks size 230x115x75 mm having minimum compressive strenth 75mm Kg/sqcm laid in trenches for cable protection etc complete all as directed by Engineer-in-Charge.

Supply, installing, testing and commissioning in replacement outdoor type stainless steel (SS 316) cubical enclosure compartmentalized exterior and interior mirror type brushed suitable for highly corrosive environment, high creep resistance, better mechanical properties like ductility, yield strength, hardness etc.The enclosure shall be made of 2 mm thick SS 316 sheet. The fixing of double doors shall be on SS hinges with anti-theft provision (the door can’t be removed from enclosure without cutting enclosure). All fabrication/welding shall be done with TIG/MIG or as approved by Engineer in charge suitable for SS 316. Sliding handle and locking arrangement front and rear both side . Enclosure shall be suitable for AC supply system 415 volts, 3 phase, 4 wire, 50 Hz. IP-55 class protection and mounted on channel 75 mm welded with panel of SS 316. The enclosure shall have provision of cable alley . Cable entry from bottom side including internal wiring with PVC insulated solid, copper conductor FRLS cable, IS-694 marked, 1100 volts grade of appropriate size (but not less than 2.5 sqmm). Platform for the panel with PCC 1:4:8 type D-2 with 40 mm graded crushed stone, 15 cm thick in foundation, brick work in CM 1:6 with sub class 'B', old size bricks, rendering 15 mm thick in CM 1:6 on exposed surfaces and 100 mm thick PCC padding 1:3:6, type C-1 using 20 mm graded crushed stone aggregate on top and grouting bolts etc for panel. The platform shall be such that it is of a height 45 cm above the nearest road level.

Material and labour for providing galvanised chain linkfencing of height 2 metre around the 11KV 2 Pole structure/transformers structures/DG sets with MS angle of size 60x60x6 mm thick duly painted with a coat of redoxide primer and two coats of synthetic enamel paint grouted with post holes and PCC at span of every one metre distance around along with 1mts width hinged gate fabricated from angle iron 40x40x5 mm frame and 12x12mm square bar guard bars and providing of slag brickwork of 2 feet height from Ground level with proper basement alongwith perimeter of the fencing and plastering the surface with cement mortar 1:6 ratio around the the fencing complete all as specified by the engineer in charge. Note:- Fencing wire dia should be minimum 3.15mm,Maximum SWM(Shortway of mesh) should be 100mm and Maximum LWM (LongWAY OF mESH) should be 250mm

NOTE :-(i)contractor should provide 50 % of the material as listed above within 15 days of the placing of work order and shall be verified by the Eng-in-charge.

M P TYAGI ENGINEERS AND CONTRACTORS

Vijay Electricals

MV Engineers And Contractors

Buddham Builders

Ridhi engineers and builders