PROVISION OF 5 MVA TRANSFORMER OF 33/11 KV AND CONNECTED SERVICES AT BABINA CANTT UNDER GE BABINA

Amount

Supply, installation, commissioning and testing complete with all accessories of transformer of 33 KV capacity 5 MVA step down, outdoor floor mounted, double copper wound,3 Phase, 50 Hz, AC, Oil immersed, ONAF confirming to IS-2026 and IEC62770 including cooling fans, external cooling tubes/radiator cores type having voltage ratio 33000/11000 volts (corresponding to principal tapping) winding delta connecting on Primary side (HV Side) and star connected on secondary side (LV side) in accordance with vector symbol Dyn11 (vector Group) with neutral brought out on LV side and looping on HV side for contact output so as to alter/vary secondary voltage by (+) 5 to (-) 15% in equal steps of 1.25% to be changed by means of (OLTC) on load Tap Changer with RTCC and AVR. Supply , installation of RTCC panel with AVR and marshaling box . Transformer shall be of BOLTLESS core design. Transformer shall be double wound, core type with low loss, non ageing, high permeability PRIME GRADE, CRGO with m4 grade or Better, Perfectly insulated and clamped to minimize noise and vibrations, core shall be purchased directly from manufacturer of core or from their accredited marketing network and not through any agent. Before placing order for procurement of transformer, the contractor shall submit the credentials in respect of the manufacturer of core and transformer shall be procured only after approval from GE in respect of name of manufacturer of transformer as well as manufacturer of core. The limit of termperature rise after continous full load runs as specified in IS/IEC 60076 shall be suitably adjusted to suit the ambient temperature of maximum 50 degree celsius prevailing at site all as specified and directed including having following characteristics :- Make :- Voltamp limited/Bharat Bijlee Ltd/ Areva T&D Ltd/Cromption Greaves LTD/ Andrew Yule / Urja Techniques India PVT Ltd/Indian Transformers Electricals/ Sankla Udhyog

(a) The transformer shall confirm to the latest edition of applicable standard as follows :- (i) IS-2026 for tests and tolerance of guarnteed Particulars. (ii) IS-3639 for fitting and accessories. (iii) IS-2099 for Bushing >1000V. (iv) IS-7421 for Bushing <1000 V (v) IS-1271 for Electrical insulation classified by Thermal stability. (b) Winding (i) HV Winding -Layer/disc winding (ii) LV Winding-Helical/Disc widing (c) Insulation Level (i) HV-170 (ii) LV-70 (d) Insulation level (Power frequency with Stand KVrms) (i) HV-70 (ii) LV-28 (e) Tapping Range -(+)5% to (-) 15% @1.25% (f) Tape Changer Type -On load Tap Changer +RTCC+AVR. (g) Temperature Rise (Oil/Winding) -50/55 Degree Centigrade (h) Hot spot temperature over a meximum yearly weight average ambient temp of 32 Degree Centigrade-98 Degree Centigrade (i) Termination HV/LV-Cable Box (j) Short Circuit thermal withstand time-02 seconds (k) %impedance at 75 °C clurrent and frequency (Subject to IS Tolrance) at 5 MVA base % 7.15 (l) No load loss at rated voltage and frequency (subject to IS Tolerance) (KW)-10 (m) Load loss at rated current and 75 degree C (KW) (subject to IS Tolerance )at 5 MVA base -70 (n) % load at which Max Efficency occurs %-33.81 (o) Regulation at full load 0.8 PF%.-5.75 (p) Regulation at full load upf %-1.05

The transformer should have following fitting and accessories :- (a) Cable Boxes on 11 KV secondary side for single core XLPE cable 3 Core 185 Sqmm (b) Outdoor 33 KV bushing insulator for connection through openconductor with sleeves. (c) Oil conservator with filling hole and cape drain valve and oil level guage. (d) Dehydrating breather wth connecting pipe first fill of dehydrating agent and oil seal. (e) Explosion relief vent mounted on tank with double diaphragm and equilliser pipe connection to conservator air space (Pressure release device) (f) Air relief plug. (g) Shut off valve between the conservator and buchholz relay. (h) Drain valve with threaded adopter. (j) Filter valve with threaded adopter (Top and bottom). (k) Wheels (l) Rating plate and terminals marking plate. (m) Extra bushing for neutral out side the LV Side (n) Hand hole sufficient size to assess the interior of the tank. (o) First filling of the transformer oil. (p) Cover Lifting eyes. (q) Double float Buchholz relay with trip and alarm contacts. (r) 150mm dial type thermometer for winding temperature indicator having range0-12 centigrade vapor pressure type with maximum reading pointer/Max temperature indicator and resetting device with alarm/trip contact and additional contact for switching on the cooling fan. (s) Dial type thermometer for oil temperature indicator with 02 sets of contacts for alarm and trip having range 0-12 centigrade vapor pressure type with maximum reading pointer/Max temperature indicator and resetting device with alaram/trip contact . (t) Shut off valve between cooling tubes and tank. (u) Pressure Release Valve (PRV) with one set of trip contact. (v) Magnetic Oil gauage (MOLG) with one set of trip contact. (w) Earthing terminal for connecting earthing lead

NOTE:- (a) The oil temperature and winding temperature guages shall be housed in a marshaling box made up of MS sheet as per manufacturer recommendations with hinged door and having glass front side of the box and provision for entry of cables and compression glands. (b) Following documents to be submitted for core during the stage inspection: (i) Invoice of supplier (ii) Factory test certificates (iii) Packing list

Supply, fabrication, fixing RS joists & MS work like, MS channel, cross arms bracings, angle, flat irons, cutting, welding for 33 KV switches yard gantry and other works as per site requirement including Nut, bolts, washers, necessary welding work and two coats of aluminium paint (ready to use) over a coat of red oxide primer complete all as specified and directed.

Supplying , transporting, erectioning, testing and commissiong of 36 KV, 1800MVA, 630 A, 50Hz voltage class outdoor type Vaccum Circuit Breaker for use on system voltage 33 KV. The circuit breaker and accessories shall conform to IEC-62271-100 or IS 13118 and other relevant IEC/IS standard. The circuit breaker shall be complete with terminal connection, operating mechanism, control cabinets, piping, interpole cable accessories like gland, terminal block, lugs, 02 Nos level pressure switch scale. necessary steel support structure for CB and control cabinet The circuit breaker shall be required to performs as per technical parameters given below:-

(a) Installation - Outdoor, 3 pole, Live-Tank, Porcelain Clad, Switchyard Breaker (b) Rated Voltage - 36 KV (c) Rated Current - 630A or higher (d) Power frequency with stand voltage (KV rms)- 70 KV (e) 12/50 microsecond lighting impuls with stand voltage (KV Peak)-170 kVp (f) Rated short circuit current breaking capacity (3 Sec) at rated voltage specified 31.5 KA. (g) Control Voltage incl. trip/close coil - 30V DC (h) Spring Charging Voltage - 230VAC (j) Symmetrical interrupting capacity (KA/RMS) 31.5 KA for 3 sec (k) Rated short circuit Making Current (KAP)-80A (l) Out of phase breaking capacity (KA rms) as per IEC (m) Rated operating duty as per IEC(o) Temp rise over the design ambient temperature -As per IEC 62271-100. (n) Operating Mechanism -Spring (o) Creepage distance as per IEC-900mm (p) No of trip/close coil 30 V DC-02 Nos (q) Tripping system - 30 V DC Note :- (a) Cost of supply and fix of Outdoor type Terminal Kiosk (TK) having terminals/disconnecting-links for termination of CT/PT wiring including PT secondary fuses complete all as required at site are deemed to be included in the quoted rate. (b) Cost of construction of foundation including construction material and necessary earth work as per manufacturer design for breaker TK complete all as required at site are deemed to be included in the quoted rate. Make :- ABB/BHEL/SEIMENS/SCHNEIDER

Supply, installation laying & testing of 33KV control & relay panel indoor type for Vaccum Circuit Breaker. The panel shall be with back access double door arrangement, dust and vermin proof, IP-4X class protection and made 2mm , CRCA MS sheet powder coated finsh over one coat of red oxide primer both side operating type, including internal wiring using 1.1kV FRLS insulated multistrand cable (2.5sqmm for CT/PT and control circuit, numbered and colour coded as per IS-5578/1984 having suitable entry for cable consisting of the following:- (a) Main, Numerical Protection Relay with LCD displaying mimic bay for ON/OFF control and monitoring of feeder current. Built in as of 11 KV VCB panel relay disturbance recorder and event logger to monitor the Sequence of Events (SoE) using upto 800 event codes. The relay shall be communicable SCADA system. Make : ABB/BHEL/SCIMENS/SCHNEIDER (i) Over current and earth fault protection with minimum pickup at low set of 5% and 1% respectively (ii) Transient/intermittent earth fault protection (iii) Phase discontinuity protection

(b) Flush mounted auxillary relays for:- (i) Trip Circuit Supervision (ii) Master Trip (iii) Fuse fail (PT) supervision operated (iv) DC supervision scheme (v) Overvoltage/ undervoltage reay within max value settings with reset (c) Metering (i) Metering Equipment incl. 01 x Digital Voltmeter (Acc.Cl.0.5), 01 x Digital Ammeter (Acc.Cl.0.5), 01 x Tri-Vector-Meter (Acc.Cl.0.5). (ii) 01 No 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. (d) Indicating Lamp. (i) Bus-01 Isolator ON/OFF. (ii) Bus-02 Isolator ON/OFF. (iii) Line Isolator ON/OFF/EARTH (iv) CB auto trip. (v) CB ON. (vi) CB OFF. (vii) CB Spring Charge. ( (viii) Trip circuit healthy. ( (ix) DC Available LED with push-button (x) R-Y-B Phase LED Indication (e) Semaphore indicator. (i) Circuit Breaker ON, OFF. (ii) Bus-01 Isolator ON, OFF. (iii) Bus-02 Isolator ON, OFF. (iv) Line Isolator ON, OFF, EARTH

(e) Semaphore indicator. (i) Circuit Breaker ON, OFF. (ii) Bus-01 Isolator ON, OFF. (iii) Bus-02 Isolator ON, OFF. (iv) Line Isolator ON, OFF, EARTH (f) Control switches/Push Buttons (i) Trip-Neutral-Close Switch for Circuit Breaker Control - 01 No (ii) MCB for AC isolation - 01 No. (iii) MCB for DC isolation - 01 No. (iv) Heater switch with thermostat - 01 No (v) 3-pin socket with ON/OFF switch - 01 No. (vi) CFL Lamp with ON/OFF switch - 01 No. (g) 08-Window Annunciator with hooter and Mute, Acknowledge, Reset and Test buttons for:- (i) OC Trip Alarm (ii) EF Trip Alarm (iii) Line Differential Trip Alarm (iv) PT Fuse Failure Alarm. (v) Trip Circuit Failure. (vi) Spare. (h) Test Terminal Block for CT. (j) The cost of construction of foundation as per manufacturer design,necessary PCC work, demolition of floors/walls of substation including foundation frame (supplied by OEM) for control panel as required at site are deemed to be included in the quoted rate. Make :- L&T / Crompton Greaves / ABB / Siemens

Supplying, laying, jointing & testing of cable XLPE insulated screened PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminum conductor, 11000 volts grade, (Earthed) cross sectional area 185 sqmm 3 core as per IS 7098 Pt-II complete all as specified. Make: M/s KEI INDUSTRIES/HAVELLS INDIA LTD/POLYCAB/UNIVERSAL CABLES

Supply,laying and testing of cable XLPE insulated,screened,PVC bedded galvanized steel strip or wire armoured electric power cable (heavy duty) 1100 V grade with multi stranded aluminium conductor of size 10 sqmm 2 core as per IS 7092 Pt-I complete all as specified and as directed. Make: M/s KEI INDUSTRIES/HAVELLS INDIA LTD/POLYCAB/UNIVERSAL CABLES

Supply,laying and testing of cable XLPE insulated,screened,PVC bedded galvanized steel strip or wire armoured electric power cable (heavy duty) 1100 V grade with multi stranded aluminium conductor of size 16 sqmm 4 core as per IS 7092 Pt-I complete all as specified and as directed. Make: M/s KEI INDUSTRIES/HAVELLS INDIA LTD/POLYCAB/UNIVERSAL CABLES

S & F cable jointing kit for 11 KV grade cable for indoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Al conductor cable of size 185 sqmm complete all as specified and as directed. Make :- RAYCHEM / DENSON/ CCI / BIRLA-3M

S & F cable jointing kit for 11 KV grade cable for outdoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Al conductor cable of size 185 sqmm complete all as specified and as directed. Make : RAYCHEM/DENSON/CCI/ BIRLA-3M

M&L SMX type surge arrester (lightning arrestors) confirming to IS-3070 (Part-1) having voltage rating 36 KV, rated frequency 50 Hz, nominal discharge current 65 KA (heavy duty) expulsion type transmission class complete with all fittings suitable for 33 KV, 3 phase earthed distribution system complete all as specified and directed. Make : OBLUM/BHEL/GEC-ELPRO/ATLAS/PACTIL

Supply, installation, testing and commissioning of air brake off load line /Bus isolator switch rotating type manually gear box operated vertical highest system voltage 36 KV rated current 1250 Amps triple pole ,each pole consist of insulating pedestals 03Nos. on galvanized steel base as per BSS/IS including rotating blade of HDE copper and fixed contacts of same material , spring loaded arcing horns of adequate section to brake magnetizing current of transformer with earthing device with size of 50 mm dia GI mediun grade pipe for operating for operation from ground level and operating handle (handle shall be covered with insulating material) complete with both off and on positions complete all as specified and directed. Note : The isolator shall be operated through gear mechanism. Make : Jaipuria Brothers/HEI/Southern Switch gear/PACTIL/MULL & CO

M&L for earthing complete with galvanised steel earth plate electrode of size 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 1.50 mtr below the ground level connected to galvanised iron strip of 32x6 mm as earth lead by means of bolts nuts check nuts & washers of galvanised iron or steel, surrounded by charcoal of coke and salt, protected by GI pipe 40 mm bore (light grade), water pipe 20mm bore GI medium grade with funnel and wire mesh,and making chamber of PCC (1:4:8) type D-2 using 40 mm graded stone aggregate and coping shall be in PCC(1:3:6) type C-1 using 20 mm graded stone aggregate, 50 mm thick cover of RCC (1:2:4) type B-1 using 20 mm graded stone aggregate, reinforced with 8 mm dia TMT bars @ 80 mm c/c boath ways including excavation and earth work and removal of surplus soil to distance n exc 50 m complete all shown in electrical plate No 3 of SSR part- 2010 and also including making test point for testing of earthing made out of gun metal or phosphorous bronge size 75x75x25 mm complete all as specified and directed. (i) The cost of GI earth lead & G I pipe of 7.50 mtr length for protection of GI wire and excavation work for pit shall deemed to be included in this item. (ii) RCC pit cover shall be pre-cast of RCC (1:2:4) type B-I, 80mm thick reinforced with XPM weighting not less than 4 KG/sqmm in lieu of CI cover. (iii) Charcoal dust and common salt upto 1.5 meter depth shall be filled in layers of 15 centimeters all around the earth plate. 3. On testing after completion of earthing if desired earth resistance is not achieved, the earthing will be redone at no extra cost to obtain the desired earth values. Note : Earthing test will be carried out and if desired result item not achieved the earthing will be redone to achieve desired result without any extra payment.

M&L earthing complete with copper earth plate electrode 600mmx600mmx3.15mm thick,thick burried directly in ground vertically to a depth not less than 3.0 mtr deep below GL with top edge of the plate not less than 2.5 mtr below normal GL and connected to earth plate . Earth plate surrounded by 15 cm thick packed layers of charcoal dust and common salt upto 1.5 meter depth all around the earth plate and connected to earth lead of copper strip 20x3.15 mm by means of bolts, nuts, check nuts and washers of GI or steel and thimbles and other end of the earth wire connected to DB and protected by galvanized iron or steel pipe light grade 40 mm bore and water pipe 20mm bore GI medium grade with funnel and wire mesh, including all necessary excavation and earth work PCC chamber in cement concrete 1:3:6 type C-2 and RCC cover and all as shown in electrical plate No 3 of MES schedule Pt I of 2009 and also including making test point for testing of earthing made out of gun metal or phosphorous bronge size 75x75x25 mm complete .Note : 1. RCC pit cover shall be pre-cast of RCC (1:2:4) type B-I , 80mm thick reinforced with XPM weighting not less than 4 KG/sqmm in lieu of CI cover.2. Charcoal dust and common salt upto 1.5 meter depth shall be filled in layers of 15 centimeters all around the earth plate. 3. On testing after completion of earthing if desired earth resistance is not achieved , the earthing will be redone at no extra cost to obtain the desired earth values.(3) The cost of GI earth lead & G I pipe of 7.50 mtr length for protection of GI wire and excavation work for pit shall deemed to be included in this item.Note:- Earthing test will be carried out and if desired result item not achieved the earthing will be redone to achieve desired result without any extra payment.

Supply and fixing of GI strip 32 x 6 mm fixed in ducts / on wall / in trenches / floors etc for earthing complete fixed to equipment / test point / earth electrode complete all as specified and directed

Supply and fixing of copper strip 20 x 3.15 mm fixed in ducts / on wall / in trenches / floors etc for earthing complete fixed to equipment / test point / earth electrode complete all as specified and directed

S&F danger notice plate of 1.6 mm thick mild steel sheet vitreous enamaled white, with letters, figures and conventional skull and bones in signal red colour fixed with and including MS clamps, bolts and nuts of approved size for HT, 33 KV 25x20 cm size complete all as specified and 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, 630Amp, 20kA/3-sec, comprising of 01 Nos Bus coupler with riser + 01 Nos Incoming VCB Panels, confirming to IEC 62271-200, Internal Arc Classified IAC AFLR – 20kA for 1 sec, Accessibility Class LSC2B-PM Class, comprising of 630 Amp, continuous rated Copper busbars and droppers, 01 Nos. Rack-In-Rack-Out Handles, The complete panel incl. HT and LT chamber with wiring shall be manufactured by approved OEM at its own facility. The Board shall consist of following panels:- (a) 01 x Incomer Panel, each comprising of :- (i) 11 KV, 630Amp, 20kA/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, motorized spring charging mechanism (230V AC) with integral spring charging handle for manual charging, associated push-buttons, anti-pumping feature, and associated Shunt Trip/Close Coils (30 V DC). (ii) Current transformers (CT) (1x2 core or 2x1 core type) dual ratio, resin cast 400/200/1+1 Amps rating, class 5 P10 for protection & class 0.5 for metering , 15 VA burden, short time rating not less than 18.4 KA for 3 sec, having IS :2705 marked suitable for 11 KV HT panel = 03 Nos.” (iii) Potential transformer (PT unit) three phase three limb, 11 KV draw out type, resin cast dry type, single ratio having primary 11 KV & secondary voltage 110 volts, 50 VA class-0.5, IS :3156, marked, with HRC fuses including necessary bus bar connection & wiring for metering etc

(iv) Metering Equipment including:- (aa) 01 x Analoge Voltmeter (Acc.Cl.0.5), 01 x Digital Ammeter (Acc.Cl.0.5) (v) LED Indications :- (aa) Breaker ON/OFF/TRIP/Spring-Charged, (ab) R-Y-B, (ac) DC Available LED with push-button (ad) AC Supply Fail (ae) Trip Circuit Healthy (vi) Control Equipment including :- (aa) 01 x TNC Switch, (ab) 01 x Local/Remote Switch, (ac) 01 x Emergency Trip Push Button, (ad) MCBs for AC and DC (af) Heater Switch with Thermostat - 01 No (ag) 3-pin socket with ON/OFF switch - 01 No (vii) Flush mounted Auxillary Protection Relays incl:- (aa) Trip Circuit Supervision Relay, (ab) Master trip Relay, (ac) PT Fuse failure relay. (ad) Numerical EF/OC Relay draw out type indicating and tripping the breaker on faults over-current and earth-fault in any of the three phases. Make : ABB/Siernens/Schenider/BHEL (ae) Trip circuit supervision relay.

(b) 01 x Bus Coupler Panel, each comprising of :- (i) 11 KV, 630Amp, 20KA/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, 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) LED Indications - (aa) Breaker ON/OFF/Spring-Charged. (iii) Control Equipment incl. :- (aa) 01 x TNC Switch, (ab) 01 x Emergency Trip Push Button, (ac) MCBs for AC , (ad) MCBs for DC , (ae) Heater Switch with Thermostat - 01 No. (af) 3-pin socket with ON/OFF switch - 01 No. (ag) LED Lamp with ON/OFF switch - 01 No.

(ah) Bus-riser panel with matching busbar to connect with the remaining bus-section comprising of: (i) Heater Switch with Thermostat - 01 No. (ii) The Bus coupler shall be complete with all allied items and accessories, including :- (a) Fabrication of adaptor panel incl alteration/couple and matching bus bar required at site with existing panel is deemed to be included in quoted rate. (b) Inter locking of two incoming supply electrically as well as mechanically. Note : (a) Vacuum circuit breaker against item No. 1.00 shall be installed in combination with existing VCB as required on site & directed by GE . The cost of Bus Bars for interconnection of VCBs, which shall be made of copper, electrolytic grade, and of suitable rating as existing , is deemed to be included herein. (b) HT bus trunking chamber /Adopter panel of capacity 11 KV, 630 Amps rating copper bus bars totally enclosed, sheet metal matching with HT panel OR totally enclosed sheet metal side entry box made out of MS CRCA sheet 16 gauge thick duly painted matching with VCB , will be provided along with the VCB where ever required according to the site conditions as directed by Engr -in -charge. The cost of material, T&P and labour for dismantling existing HT panels taking out and re fixing with new HT panel is deemed to be included in quoted rate. Make :- ABB/Siemens/Schneider/BHEL

Supply, installation, testing and commissioning 33 KV current transformer oil cooled out door single phase, oil immersed and self cooled type of ratio 400-200/1-1-1-1 Amp and class suitable for metering and protection equipment installed on control panels terminal block as specified below :- ( For 33 KV Vaccum Circuit Breaker) (a) Normal System Voltage-33 KV (b) Highest System Voltage-36 KV (c) Rated Primary current- 630 Amp (d) Rated secondary current- 1 Amp (e) Nos of Core - 4 (f) Core01: Accuracy class 5P10, 10VA, ALF ≥10 (g) Core02: Accuracy Class 1.0, 10VA, ISF ≤ 5 (h) Core 03 Protection core accuracy class -PS,Protection knee point voltage- 300 Volt at lower ratio (j) Core 04-Spare (k) Continuous thermal current rating 120 % of rated primary current (l) Temp rise at rated contineous thermal current over ambient at site - Less than or equal to 45 degree C (m) Insulation Level- 36/70 KV.170 KVP (n) 1.2/50 Micro second impulse withstand test voltage- 170 KV (peak) (o) Short time thermal current rating for one second - 25 KA/1 Second (p) Dynamic Current Rating - 62.5 KA ( peak) (q) Porcelain Bushing type - Hollow Cylinder (r) Creepage distance of HV bushing - 900 mm (min) (s) Primary & Secondary winding material - Copper. Make :- Automatic electrical/Jyothi/Laxmi/Pragati Electricals Pvt Ltd

Supply installation, testing and commissioning Potential Transformer (PT) oil cooled out door single phase ( Earthed type) of voltage ratio 33 KV/110 V class 3P - 0.5-3, burden 50 VA insulation level of 70/170 KV as specified below:- (a) Normal System Voltage-33 KV (b) Highest System Voltage-36 KV (c) Rated Primary voltage- 33 KV/√3 (d) Rated secondary voltage- 110 V/√3 (e) Nos of Lt winding 2 (f) Metering Core Accuracy class - 0.5 (g) Metering Core Rated Burden- 50 VA (h) Nos of Phase- Single (Earthed Type) (j) Protection core accuracy class - 3P (k) Protection core rated Burden - 50 VA (l) Rated Voltage Factor - 1.2 continuous & 1.5 for 30 Sec (m) Insulation Level- 36/70 KV.170 KVP (n) Temp rise at rated contineous thermal current over ambient at site - 45 0C (o) Porcelain Bushing type - Hollow Cylinder (p) 1.2/50 micro second impulse with stand test Vol-170 KV (Peak) (q) Creepage distance of HV bushing - 900 mm (min) (r) Primary & Secondary winding material - Copper. Make :- Automatic electrical/Jyothi/Laxmi/Pragati Electricals Pvt Ltd

Supply and laying and testing of PVC insulated PVC sheathed cable galvanized steel strip or wire armoured electric control cables (Heavy duty) with stranded Copper conductor of size 2.5 sq mm 10 core 1100 Volts grade complete all as specified and directed. Make :- Havells/polycab/KEI

Description all as per item No 21 here-in -bove but of size 2.5 Sqmm 6 core complete all as specified and directed. Make : Havells/polycab/KEI

S&F disc insulator with hardware fittings 33 KV grade 70KN to be used for power lines The Insulators covered by this specification should conform to the latest editions of Indian Standard Specification IS:731, IS:2544 and IS:5350.The Porcelain shall be sound, free from defect, thoroughly vitrified and Smoothly glazed. The Insulators shall be brown in colour. Note : (a) Nominal system Voltage -33 KV (b) Highest system Voltage -36 KV (c) Minimum failing load -10 KN (d) P.F Visible Discharge Voltage - 27 KV rms. (e) P.F Minimum flash over voltage (Dry) - 130 KV rms (f) P.F Minimum flash over voltage (wet) - 90 KV rms (g) Power Frequency puncture withstand voltage on single unit - 150 KV rms Make :- BHEL/JAYSHREE/AREVA/ABB/PACTIL.

All as per item 23 here-in-above but pin/Support insulator with hardware fittings 33 KV grade complete all as specified and directed. Note : (a) Nominal system Voltage -33 KV (b) Highest system Voltage -36 KV (c) Minimum failing load -10 KN (d) P.F Visible Discharge Voltage - 27 KV rms. (e) P.F Minimum flash over voltage (Dry) - 130 KV rms (f) P.F Minimum flash over voltage (wet) - 90 KV rms (g) Power Frequency puncture withstand voltage on single unit - 150 KV rms Make :- BHEL/JAYSHREE/AREVA/ABB/PACTIL.

Supply and laying galvanised tube medium grade of size 100 mm dia ISI marked incl all fittings in trenches/fixed on pole/wall/floor or laid under culvert complete all as specified and directed. Make :- Prakash Surya/Jindal/TATA

Excavation in trenches in any type of soil not exc 1.5 mtrs wide and not exc 1.5 mtr in depth for laying of pipe/ cables/ poles/ foundation of transformer etc and getting out complete all as specified and as directed.

Returning fitting in any type of soil including spreading leveling watering and well ramming in layers n.exc 25 cm complete all as specified and as directed.

Removing excavated soils to a distance n.exc. 50 mtr and depositing where directed at a level not exc 1.5 m above the starting point complete all as specified and as directed.

M & L for laying of fine, clean sand (river sand) free from sharp materials in trenches for cushioning of cable 8 cm thick under cable and 15 cm thick over the cable including gently punning for cable in trenches/cable ducts complete all as specified and directed. Note:- The total thickness of sand shall be measured 18 cm after punning.

M&L for PCC cable cover class HV type 1 flat size 300 mm x 180 mm x 40 mm, ISI marked across the cable for protection of cable after sand cushioning complete all as specified & directed.

M&L for PCC cable cover class LV type 1 flat size 250 mm x 150 mm x 40 mm, ISI marked across the cable for protection of cable after sand cushioning complete all as specified & directed.

M&L for road cutting any type incl excavation in trenches for laying HT UG cable in pipe not exc 45 cm wide and n.exc 90 cm depth or as per site requirement including making good the disturbed surfaces with cement concrete (1:3:6) type C-1 and top surface neatly finished as per existing to match with the existing complete all as specified and directed.

M&L for pre-cast RCC (1:2:4) type B-1 using 20 mm graded stone aggregate as in pre-cast posts, fencing posts, struts,transformer platform, duct cover etc , average sectional area exceeding 100 and not exceeding 250 sqmm, with or without chamfered angles and flat, splayed, rounded or mitred tops as directed and fixed.

M&L, MS TMT bars 10mm dia and over as in reinforcement cut to length bent to shape required including bending cranking and hooking ends and binding with and including MS wire not less than 0.9 mm dia complete all as specified and directed.

M&L, TMT bars 5 mm dia and over up to including 10 mm dia cut to length, bent to shape required as in stirrups as in stirrups, spacers, binders etc including bending cranking and hooking end and binding with and including mild steel wire not less than 0.9 mm dia complete all as specified.

M&L PCC (1:3:6) type C-1 using 20 mm aggregate as in foundation or mass concrete all as specified and directed.

Supply & fixing of main bus bar on bus bar gantries with ACSR panther conductor including laying, stringing & binding of conductors and fixing of disc fitting with disc sets with all types of PG clamps & connectors as per site requirements complete all as specified and directed.

M&L for demolition of protective wall of 33 kv transformer yard in part as required at site for expansion of protective wall including removing of old bricks, cement mix and other demolished items etc. The complete work will be carried as desired and directed by Engineer-in-Charge.

M&L for brick work with fly ash bricks, straight or curved on plan exc 6 m mean radius built in CM (1:4) as in foundation of equipment, platform, ramp, cable ducts, supporting pillars of pipes/cables, proecting wall complete all as specified and directed.

M&L for plastering in CM (1:4) 10 mm thick on fair faces of brick work or concrete surface/cable duct/floor complete all as specified and directed.

M&L for laying 40 mm graded stone aggregate in substations/main sitching yard insuch a way that after removing of unwanted grass from substations and then levelling at zero level and laying of stone dust of 50 mm thick at an initial layer and then laying of 20 mm gaded stone aggregate 100 mm thick over the stone dust. . The complete work shall be as decided and directed by Engr-in-Charge.

M&L two coats of distempering of walls with distemper dry, white including preparing new plastered or unplastered wall surface & also complete removal of existing treatment of walls and match old surface with new all as specified and directed.

Note for items No 1, 3, 4, 5, 6, 7, 8, 11, 18, 19, 20, 23 & 24 :- (a) License parter, system integrator, panel builder, half-panel is not allowed for 11kV/33kV VCB, Vaccum Circuit Breaker, VCB Panels, Transformers. All works shall be done at manufacturer own works premises. (b) All items will be transported in wooden packaging to avoid any damage. Acceptance of material will be discretion of GE. Contractor has to remove the material in case of rejection of material at no extra cost. (c) Factory acceptance test shall be carried out for following :- (i) 11 KV HT VCB Panels (ii) 33 KV HT VCB Panels (iii) 5 MVA Transformer (d) Testing before dispatch of Transformer & VCB will be done by rep of Accepting Officer at factory premises. All necessary arrangements for lesting will be done by contractor without any extra cost.

PARAS BROTHERS

Sant Construction Co.

KB PROJECTS

GEPS PROJECTS

M/S Kumar Contractors