REPAIR AND MAINTENANCE TO TRANSFORMER, VCB, HT PROTECTION SYSTEM AND HT CABLES AT AIR FORCESTATION UTARLAI

Amount

M&L for disconnecting of 150 KVA to 250 KVA capacity defective transformer (indoor/outdoor type ) 11 KV/433 volts copper/ wound from power mains and dismantling the same from 2/4 pole structure/ platform mounted and transporting the same to authorised workshop and opening the transformer cover, draining out of tranformer oil and keep safely for reuse after filtration, assembling, removing of the burnt parts i.e tape, paper insulating strings etc gently and carefully, washing of the dust, rust and dirt from all parts incluiding taking out HT/LT leg coil core tank and cooling tubes, painting the inner side tank by zinc chromate paint and preparing the same for re-assembling after carrying out required repair and installation on existing 2/4 pole structure/ platform with neccessary fixing arrangment including connecting up electrically, commissioning and testing all as directed and specified. Note : (i) Unit rate quoted by the contractor shall be deemed to include for taking out and reinstalling after repair of transformer with the help of crane, including transportation to workshop and back incluiding handling. (ii) Unserviceable wornout items required replacement shall be measured and paid separately under respective items of BoQ.

All as per Item No. 1.0 here-in-before but of 315 KVA to 400 KVA capacity.

Supply only LT leg coil with insulation for copper wound transformer of any capacity for indoor /out door transformer complete all as specified and directed.

Supply only HT leg coil with insulation for copper wound transformer of any capacity for indoor /out door transformer complete all as specified and directed.

Supply only HT porecelain bushing complete with brass/tinned copper rod with nuts and gasket set complete for 50 KVA to 100 KVA capacity transformer complete all as specified and directed.

All as per Item No. 5.0 here-in-before but for 150 KVA to 250 KVA capacity transformer.

All as per Item No. 5.0 here-in-before but for 315 KVA to 400 KVA capacity transformer.

Supply only LT porecelain bushing complete with brass/tinned copper rod with nuts and gasket set complete for 50 KVA to 100 KVA capacity transformer complete all as specified and directed.

All as per Item No. 8.0 here-in-before but for 150 KVA to 250 KVA capacity transformer.

All as per Item No. 8.0 here-in-before but for 315 KVA to 400 KVA capacity transformer.

Supply only tap changer switch 11 KV complete with rod and gasket for 150 KVA to 250 KVA capacity transformer complete all as specified and directed.

All as per Item No. 11.0 here-in-before but for 315 KVA to 400 KVA capacity transformer.

M&L for opening of transformer cover at site for carrying out repairs such as replacment of bushing rods gasket etc and re-assembling after carrying out required repair in the transformers (Note :- Bushing rods shall be measured and paid separately in respective item of BoQ)

M&L for checking the condition of Silicate and packing the same to bring it to required blueish colour and refilling the new Silicate in to the breather complete all as specified and directed.

M&L for disconnection of defective transformer and shifting of trolly mounted transformer of 315 KVA capacity at required site and connecting to HT 11000 volt in coming from existing two pole structure and LT cable to LT panel and transporting the defective transformer to AGE E/M store yard complete all as specified and directed.

M&L for disconnecting LT conections of defective voltage stabiliser, taking out with the help of crane and transporting voltage stabiliser to factory for repair & back after repairing to site including connecting, LT connection earth connecting leads, testing and commissioning at site all as directed by Engineer-in-Charge for 10 KVA to 30 KVA capacity capacity transformer. Note : (i) Unit rate quoted by the contractor shall be deemed to include for taking out and reinstalling after repair of voltage stabiliser with the help of crane, including transportation to workshop and back incluiding handling. (ii) U/S wornout items required replacement shall be measured and paid separately under respective item of BoQ.

All as per Item No. 16.0 here-in-before but for 50 KVA to 100 KVA capacity transformer.

All as per Item No. 16.0 here-in-before but for 200 KVA to 315 KVA capacity transformer.

S&F in replacement Micro Switch of existing stabilizer of any make and capacity complete all as specified and directed.

S&F in replacement Carbon Brushes of existing stabilizer of any make and capacity complete all as specified and directed.

S&F in replacement Control Panel Switch complete all as specified and directed.

S&F in replacement Indicator Lamp suitable for stabilizer complete all as specified and directed.

S&F in replacement Control Card suitable for existing stabilizer of any capacity complete all as specified and directed.

S&F in replacement CM Torque Motor for rotating of dimmer as per existing capacity and make for servo voltage stabiliser complete all as specified and directed.

S&F in replacement Relay of voltage stabilizer as per existing capacity and make complete all as specified and directed.

S&F for servicing, calibration, testing and setting of fault tripping relays as mentioned in maintance and operation manual of 33 KV HT VCBs as per OEM instructions complete all as specified and directed.

S&F for servicing, calibration, testing and setting of fault tripping relays as mentioned in maintance and operation manual of 11 KV HT VCBs as per OEM instructions complete all as specified and directed.

M&L for servicing, calibration, testing and setting of fault tripping relays as mentioned in maintance and operation manual of 11 KV HT RMU SF6 breaker 1 incomer 2 outgoing as per OEM instructions complete all as specified and directed.

M&L for servicing, calibration, testing and setting of fault tripping relays as mentioned in maintance and operation manual of 11 KV HT RMU SF6 breaker 1 incomer 3 outgoing as per OEM instructions complete all as specified and directed.

M&L for servicing, calibration, testing and setting of fault tripping relays as mentioned in maintance and operation manual of 11 KV HT RMU SF6 breaker 1 incomer 4 outgoing as per OEM instructions complete all as specified and directed.

M&L for servicing, calibration, testing and setting of fault tripping relays as mentioned in maintance and operation manual of 11 KV HT RMU SF6 breaker 1 incomer 5 outgoing as per OEM instructions complete all as specified and directed.

S&F in replacement Tripping Coil 24/110 Volts DC supply complete as per existing make and type complete all as specified and directed.

S&F in replacement Cable End Termination Jointing Kit, HT 11 KV grade, heat shrinkable, indoor type complete with jointing materials and accessories suitable for HT XLPE cable 3 core 11 KV grade of size 70 Sqmm to 120 Sqmm x 3 core armoured alumuinium conductor cable complete all as specified and directed. Note- Unit rate quoted by the contractor shall be deemed to inclusive of excavation and earth work, T&P and labour etc.

S&F in replacement Cable End Termination Jointing Kit, HT 11 KV grade, heat shrinkable, outdoor type complete with jointing materials and accessories suitable for HT XLPE cable 3 core 11 KV grade of size 70 Sqmm to 120 Sqmm x 3 core armoured alumuinium conductor cable complete all as specified and directed. Note- Unit rate quoted by the contractor shall be deemed to inclusive of excavation and earth work, T&P and labour etc.

S&F in replacement of Cable straight through Jointing Kit, HT 11 KV grade, heat shrinkable, straight through type complete with jointing materials and accessories suitable for HT XLPE cable 3 core 11 KV grade of size 70 Sqmm to 120 Sqmm x 3 core armoured alumuinium conductor cablecomplete all as specified and directed. Note- Unit rate quoted by the contractor shall be deemed to inclusive of excavation and earth work, T&P and labour etc.

Supply, lay, test, joint and commission in replacement XLPE insulated , screened, PVC bedded, galvanised steel strip or wire armoured electric powercable heavy duty with aluminium conductor of size cross sectional area 95 sqmm 3 core, 11000 Volts grade (11 KV earthed system); laid in trenches/under floor/through ducts, on Hill / fixed on pole complete all as specified and directed. Note : Excavation & Earth work, sand cushioning, cable protection cover, pipe and joint shall be measured and paid separately under respective items of BoQ

Relay, test, joint and commission old retrieved serviceable XLPE insulated , screened, PVC bedded, galvanised steel strip or wire armoured electric powercable heavy duty with aluminium conductor of size cross sectional area 70 Sqmm to 120 Sqmm x 3 core, 11000 Volts grade (11 KV earthed system); laid in trenches/under floor/through ducts, on Hill / fixed on pole; after rectificationof defects complete all as specified and directed. Note : Excavation & Earth work, sand cushioning, cable protection cover, pipe and joint shall be measured and paid separately under respective items of BoQ

Supply and lay in replacement 100mm bore galvanised iron light grade pipes in treanches for road/ path and fixing alongwith pole/wall for protection of underground cable complete all as specified and directed.

M&L for disconnection of HT and earthing connections from existing VCB carefully and taking out the VCB and shifting by using crane and making HT/Earthing connections complete all as specified and directed.

S&F in replacement Ampere-meter 3 phase, suitable for VCB complete all as specified and directed.

S&F in replacement Battery Backed Power Pack, input 230 volts AC supply and output 110 volt DC supply suitable for HT VCB complete all as specified and directed.

S&F in replacement Neon Indicating Lamp suitable for VCB/RMU (Red, Yellow, Blue) panel mounting type complete all as specified and directed.

S&F in replacement voltage pressure Indicator Detector suitable for HT 11 KV of make Areva for RMU complete all as specified and directed.

S&F Rubber Boot for indoor terminal protection of 11 KV cable complete all as specified and directed.

S&F in replacement MiCOM range of relays offers varying levels of functionality and hardware options to best suit the potection requirements,Voltage 100-230 V AC,48-250 V DC Current 3 or 5 Amp Number Of Poles 3 Frequency 50 Hz Operating Temperature -10 to +80 Deg C Suitable for 11 KV VCB installed at site complete all as specified and directed.

S&F in replacement Numerical Over Current And Earth Fault Protection Relay,Current 1A/5A Display Flush Frequency 50 Hz IP Rating IP 55 Suitable for 11 KV VCB installed at site complete all as specified and directed.

S&F in replacement Master trip relays having multiple NO & NC contact for extending tripping command to circuit breaker trip coils, Size 1/4 DIN Type DC Phase Single Material Copper Supply 24VDC Suitable for 11 KV VCB installed at sitecomplete all as specified and directed.

S&F in replacement 11KV VCB Spring Charging Mechanism No. of Poles 3 Rated Current 1600 A Voltage 230 V Frequency 50 Hz complete all as specified and directed.

S&F in replacement Vacuum Interrupter 12kV Rated Voltage [kV] : 12 Rated Normal Current [A]:1250 Rated Short Circuit Breaking Current[kA] :26.3 Rated Frequency [Hz]:50-60 Rated Insulation Level -Power Fequency Voltage [kV] :28 Rated insulation Level -Impulse Lightning Voltage [kVp] :75 Mechanical Operating Cycles: 30000 CO Make:Crompton Greaves Ltd. or equivalent as per site requirement complete all as specified and directed.

S&F in replacement One Phase Outdoor Oil Potential Transformer Cooling Type Oil cooled Phase One Phase Power Rating -11KV Make: EREVA /ABB /Crompton Greaves/ Siemens/ Sehneider or equivalent as per site requirement complete all as specified and directed.

S&F in replacement Rated Secondary Voltage 70 kvp Ring Core Type CT 33KV Dead Tank Current Transformer, Ring Core Type CT, CT Ratio 200-100/5-5A ,Rated Voltage 33KV Material Mild Steel,Rated Power Rated secondary voltage 70KVP complete all as specified and directed.

S&F in replacement Single 33 KV Outdoor Potential Transformer Phase Single Accuracy Class 0.2,0.5 Primary Voltage 33 KV Secondary Voltage 63.5 Volt Frequency 50 Hz Color Grey complete all as specified and directed.

S&F in replacement Primary Voltage 11KV Power (VA) 100, Core Type POTENTIAL TRANSFORMER, Phase One Phase, Secondary Voltage 110V/220V, Accuracy Class 10, 3P, 0.5, 0.2, Rated Voltage 12KV, Material 11KV INDOOR TYPE PT, cooling Type Dry Type, CT Ratio 11KV/RT3/110V/RT3, Color 12KV HSV,Coil Structure Toroidal complete all as specified and directed.

S&F in replacement CT Ratio- Different ratio Rated Voltage 11kV, Rated Power (VA) 15VA 20VA 30VA 40VA 50VA, Phase Single Phase, Power (VA) 15VA 30VA, Input Voltage 11KV 22kV 33kV, Output Voltage 1A 5A, Accuracy Class 0.2, 20, 10, 0.5, Core Type Indoor type ct, Wound CT, Rated Burden 15VA 30KV 40KV 50KV 100KV,Material INDOOR complete all as specified and directed.

S&F in replacement VRLA Battery 2 Volts, Capacity 240 AH,Type Flat Plate Battery Warranty 2 years, Usage/Application online UPS Make: Exide/Amaron/Microtech or equivalent as per site requirement complete all as specified and directed.

S&F in replacement Tubular Gel VRLA 12 Volt Monoblock Battery, Capacity: 120 Ah, Warranty: 1 year Usage/Application online UPS Make: Exide/Amaron/Microtech or equivalent as per site requirement complete all as specified and directed.

S&F in replacement 1100 VA Inverter pure sine wave with 150 Ah Tubular Battery and Trolley Application online UPS with inbuilt AC to DC converter & Output of 110 DC supply. Make: Exide/Amaron/Microtech or equivalent as per site requirement complete all as specified and directed.

S&F in replacement 33 KV Anti Skid Electrical Insulation Mat IS15652/2006 Pattern ANTI SKID Material ELASTOMER Rated Voltage 33KV Color BLACK/ BLUE/ RED, Flame Retardance, Make:ISI approved ,size as per site requirement complete all as specified and directed.

S&F in replacement Limb of VCB existing make and model 11 KV outdoor type complete all as specified and directed.

S&F in replacement Copper Bus Bar for HT 11 KV VCB as per required thickness, width and length , size and mould dimension will be as per site requirement complete all as specified and directed.

S&F in replacement Earth fault & Over Current Self Power Relay suitable for 1 Amp, complete all as specified and directed.

S&F in replacement Pin type Insulator, Porcelain, vitreous 150mm height and 150mm dia white, brown or green colour, including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut , Frequency 50 Hz Surface Finish Polished Working Voltage 11000 Volts complete all as specified and directed.

S&F in replacement Disc type Insulator, Porcelain, vitreous 145mm high and 255mm dia ball and socket type white,brown or green colour, two-in series asembly for tension with tension clamps for conductors, working pressure 11000 Volts complete all as specified and directed.

S&F in replacement Switching Mode Power suply (SMPS) of existing make and specifications complete all as specified and directed.

M&L for disconnecting all electrical and mechanical connections and dismantling HT 11KV VCBs (clubbed unit of 6 VCBs 11KV each), disconnecting of existing busbar copper including all nuts and bolts for disintegration of club Cleaning of entire inner surface of VCBs, shifting of disintegrated VCBs to a place not more than 10m from previous place, reclubbing and reassembling of entire system and ensure makingconnections of all electrical and mechanical assets as per site requirement complete all as specified and directed. Note:-If any material required during reconnection of electrical acessories/items, will be paid separately under respective item of BoQ).

M&L for disconnecting all electrical and mechanical connections and dismantling HT 11KV VCB disconnecting of existing busbar copper including all nuts and bolts for disintegration of club Cleaning of entire inner surface of VCBs, shifting of disintegrated VCBs to a place not more than 10m from previous place, reclubbing and reassembling of entire system and ensure makingconnections of all electrical and mechanical assets as per site requirement complete all as specified and directed. Note:-If any material required during reconnection of electrical acessories/items, will be paid separately under respective item of BoQ).

M&L for disconnecting all electrical and mechanical connections and dismantling HT 33KV C&R panel, disconnecting of existing network including all nuts and bolts for disintegration of club Cleaning of entire inner surface , shifting of disintegrated VCBs to a place not more than 10m from previous place, reclubbing and reassembling of entire system and ensure makingconnections of all electrical and mechanical assets as per site requirement complete all as specified and directed. Note:-If any material required during reconnection of electrical acessories/items, will be paid separately under respective item of BoQ).

M&L for disconnecting all electrical and mechanical connections and dismantling LT panel, disconnecting of existing network including all nuts and bolts for disintegration of club Cleaning of entire inner surface , shifting of disintegrated VCBs to a place not more than 10m from previous place, reclubbing and reassembling of entire system and ensure makingconnections of all electrical and mechanical assets as per site requirement complete all as specified and directed. Note:-If any material required during reconnection of electrical acessories/items, will be paid separately under respective item of BoQ).

S&F in replacement Connection Box made out of 3.15mm thickness CRCA sheet suitable for 11 KV VCB for connecting 11KV HT cable upto size300 sqmm making necessary connections including cable glands complete all as specified and directed.

S&F in replacement Metal Powder coated Cable trays, size 600mm, material: metal, tray type: ladder type cable tray, Coating: -Galvanised PowderCcoating , corrision Resistance with and including all necessary crosses, bends, nuts, bolts, mounting and fixing materials and T&P used during installation, Make; ISI approved, length as required in portions as per site requirement complete all as specified and directed.

S&F in replacement Lightning arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 Kilo Amperes for 11000 Volts complete all as specified and directed.

S&F in replacement Lightning arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 Kilo Amperes for 33000 Volts complete all as specified and directed.

S&F in replacement Horizontal type triple pole, mechanically operated, Gang Operated switch (GOD), mounted on insulator and steel frame, with operating mechanism worked from ground level, for current rating upto 200 amps for 33000 Volts complete all as specified and directed.

Excavating in trenches in soft/loose soil, not exceeding 1.5 m wide and not exceeding 1.5 m in depth; for foundation, etc. or for shafts, cesspits,manholes, pier holes, water/sewer pipe line, electric cable line etc not exceeding 10 Sqm area on plan and not exceeding 1.5 m in depth and getting out ,including taking out defective cable, sand cushion and protection cover and stacking serviceable materials for reuse and removing unserviceable from complete all as specified and directed.

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

Removing excavated material n exc. 50m and depositing where directed at a level n exc. 1.5 m above the starting point for soil complete all as specified and directed.

M&L for providing dry tibba sand in trenches as sand cushioning to underground cable including punning down of sand in layer all as speciied. (Note :- 18 cm Punned thickness shall only be measured and paid).

Lay in repairs Old Stone Patti complete all as specified and directed.

M&L for 40 to 50 mm thick rough dressed Jodhpur type stone slab cover 25 to 30 cm wide and 30 to 40 cm in length laid dry abutting each other or under ground protection complete all as specified and directed.

National Rewinding Works