REPAIR AND MAINT OF SERVO VOLTAGE STABILIZER, TRANSFORMERS AND IMPROVEMENT TO ELECTRIC SUB STNS AT VARIOUS LOCATIONS UNDER GE (E) MATHURA

Amount

Disconnecting electrical connections of step down transformers 11KV/0.433 KV after taking proper electric shutdown and labour and T&P for opening / stripping of the same, draining out oil in clean barrels, lifting the core & coil assembly, washing and cleaning dust, dirt & sludge deposit from all parts, cleaning and polishing of tapping contact point, making internal connections, providing new cork sheet gasket packing 10 mm thick and pouring in the insulating oil in the transformer, re-assembling the transformer after repair work, checking for any leakages including replacement of any unserviceable parts required to make it serviceable all as directed and placing the transformer at original or any other location and making all electric connections including testing the transformer to the entire satisfaction of Engr-in-Charge of following capacities.

Note: (i) Spares required for replacement of unserviceable parts shall be measured and paid separately under item No 2 to 7 of scheldule as supply only and cost of labour thereof is deemed to be included in unit rate quoted under this BOQ. (ii) Cost of transportation, loading, unloading from sub station to workshop & back including its installation, testing & commissioning complete is deemed to be included in unit rate quoted under this BOQ .

50 KVA to 100 KVA

150 KVA to 250 KVA

300 KVA to 400 KVA

500 KVA to 630 KVA

Supply only LV brass stud full threaded with required nuts & washer suitable for 11KV/433V distribution transformer of following capacites:

50 KVA to 100 KVA.

150 KVA to 250 KVA.

300 KVA to 400 KVA.

500 KVA to 630 KVA

Supply only HV brass stud full threaded with required nuts & washer suitable for 11KV/433V distribution transformer of following capacites:

50 KVA to 100 KVA.

150 KVA to 250 KVA.

300 KVA to 400 KVA.

500 KVA to 630 KVA

Supply only LV bushing with gasket suitable for 11KV/433V distribution transformer of following capacites:-

50 KVA to 100 KVA.

150 KVA to 250 KVA.

300 KVA to 400 KVA.

500 KVA to 630 KVA

Supply only HV bushing with gasket and arcing horn suitable for 11KV/433V distribution transformer of following capacites:-

50 KVA to 100 KVA.

150 KVA to 250 KVA.

300 KVA to 400 KVA.

500 KVA to 630 KVA

Supply only 433 Volts LV coil with super enamelled copper wire winding of same guage including necessary insulating materials and baking the coil in vacuum furnace for transformer 50 KVA to 400 KVA capacity transformers complete all as directed.

Supply only 11 KV HV coil with super enamelled copper wire winding of same guage including necessary insulating materials and baking the coil in vacuum furnace for 50 KVA to 400 KVA capacity transformers complete all as directed.

Cutting wild grass, bushes, creaper, unwanted vegetation from inside / surrounding of E/M sub station (transformers) including cutting creapers from barbed / cattle fencing of the sub stn as when directed and removing of unwanted material from installation fencing/compound and depositing where directed after taking proper electric shutdown form MRS Mathura. (Note : The item shall be operated maximum two times in entire period of contract in the same installations. (Area measured separately each time).

S&F Pre-painted galvalume aluminum zinc coating GI based corrugated steel sheet 0.50mm thick of any colour having tensile strength of 550 Mpa as per IS 15965: 2012 in roof covering fixed with self tapping screws complete.

M&L for framed work as in MS sheet section, hinges, angle iron etc complete confirming to Fe-410-O or Fe 310-0 all as directed incl taking down the existing unserviceable.

S&F Electrical insulation rubber mating as per ISI and size 1mx2mx25mm thick complete all as directed. Make: JAIPURIA Brothers or equivalent.

Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth and getting out in any type of soil for laying cables.

Returning, filling in including spreading, levelling, watering and well ramming in layers not exceeding 25 cm thick complete all as specified and directed by Engr in charge.

Removing surplus excavated material to a distance not exceeding 50m and depositing at a level not exceeding 1.50m above the starting point complete all as directed.

M&L for sand cushioning to under ground cable in trenches in layers of 8 cm deep before laying the cable and 15 cm deep after laying and stretching the cable complete all as specified and directed by Engr in charge. Note:- Measurement shall be taken after gentling puning of sand.

Supplying and laying reinforced precast concrete cable cover class LV type 1 with flat size 250 mm x 150 mm x 40 mm complete all as directed.

Supply, laying, jointing and testing of XLPE insulated, sheathed, armoured, heavy duty LT 1100 volts grade cable with aluminium conductor laid in trenches / pipes, fixed to poles / walls, fixing with suitable saddle/clamps complete all as directed including taking out the old burnt out cables of following sizes:-

70 sqmm 3.5 core.

95 Sqmm 3.5 core.

120 Sqmm 3.5 core.

150 Sqmm 3.5 core.

Supply only new transformer oil, clear, transparent and free from all type of suspended matter or sediment, ISI marked as per IS:335/93 with amdt. No.1 (Reaffirmed: 2005) dehydrated to give BDV value not less than 60 KV when tested with 2.5 mm gap electrode for topping up complete all as directed. Make :- Savita / Powerlink / Power oil as approved.

S&F in repair transformer breather assembly oil seal type made of transparant PVC body heavy duty filled with good quality silica gel blue colour of capacity 800 grams complete all as specified and directed.

S&F in repair transformer breather assembly oil seal type made of transparant PVC body heavy duty filled with good quality silica gel blue colour of capacity 1200 grams complete all as specified and directed.

M&L for filtration / dehydration of insulating oil of transformer in position to achieve dielectric strength 50 KV or above (when tested with 2.5 mm gap electrode) complete all as directed.

M&L for preparation of old painted external surface of transformer by removing the scrap, rust, washing including cleaning & spray painting with two coats of synthetic enameled grey paint over a primer coat for the following capacities:-

50 KVA to 100 KVA.

150 KVA to 250 KVA.

315 KVA to 400 KVA.

Demolition of brick masonary platform and material and labour for construction of brick masonary platform 3m x 2.5m x 1.2m with XPM fencing with weight not less than 4 Kgs/sqm and angle iron 50x50x6 mm for support gate with locking arrangement, PCC floor including excavation and earth work, platform white washing, painting of fencing and frame work complete all as directed. Note : Rate is inclusive of taking down transformer from foundation/ two pole structure, fixing on suitable trolley, making all electrical connections and restoring power supply and refixing the transformer after civil works all as directed.

S&F in replacement of old unserviceable/ damaged temperature gauge with new temperature gauge suitable for transformer of any capacity and any type including all necessary accessories i.e. nipple, socket, complete all as specified and as directed by Engineer-In-Charge.

S&F cable tray suitable for supporting and carrying out LT cable upto transformer of size upto 240 sqmm complete all as directed.

Disconnecting electrical connections of Servo voltage stabilizer by taking out transformer oil and storing for reuse after cleaning and removing moisture, taking all the assembly of voltage stabilizer and removing / repairing the unserviceable parts, reassembling it after repair testing and commissioning the voltage stabilizer of following capacities:- Note: (i) Spares required for replacement of unserviceable parts shall be measured and paid separately under item of this BOQ of scheldule as supply only and cost shall be deemed to be included in unit rate for this item. (ii) Cost of transportation, loading, unloading from site to workshop & back including its installation, testing & commissioning complete is included in the quoted item rate.

40 KVA to 50 KVA .

Supply only PCB control card for automatic voltage correction suitable for voltage stabilizer of following capacities:

40 KVA to 50 KVA

Supply only carbon bushes for voltage stabilizer of following capacities:

Supply only servo motor for voltage stabilizer of following capacities:

40 KVA to 50 KVA

Supply only Cast Iron dimmer gear set for automatic voltage correction for servo voltage stabilizer of capacities:

40 KVA to 50 KVA

Supply only Servo Dimmer Booster coil for automatic voltage correction suitable for servo stabilizer of following capacities:

40 KVA to 50 KVA

Supply only super enamelled copper conductor winding wire of same guage including necessary insulating materials for servo voltage stabilizer of capacities 40 KVA to 250 KVA.

Taking down old unserviceable control wiring and replacement of control wiring using suitable gauge copper conductor as per existing winding for stabilizer of capacity 15 KVA to 250 KVA complete all as specified and directed.

Supply and fixing in replacement voltmeter 0 to 500 volts 96x96mm flush type in stabilizers incl taking out the old unserviceable complete.

Supply and fixing in replacement ammeter 0-100 square shape 96 mm or as per sample. Make :- AE or equivalent as approved.

S&F double legged informatory sign board of size 1.5m x1.0mx3mm fixed on single frame, both side and meeting back to back on the square pipe. The boards are of high intesity grade reto-reflective sheeting of AVERY DENNISOX made out of 2mm thick Alcoband sheet/ aluminium sheet confirming to IS 736, colour as approved by Engr-in-Charge on SS square/round pipe of size 45x45x3.65/50mm square pipe with nut and bolt. The lettering will be computerised cut of high intensity grade white sheeting (AVERY DENNISON) and machanically fixed on board over vertical post on 50mm square/round pipe, 3.65mm thick. Total height of sign board shall not less than 2.5m. Pipe shall be embedded in PCC M-15 grade (Nominal mix) using 20mm graded stone aggregate of size not less than 200x200x350mm in post holes incl dismantling of old board complete.