PROVISION OF TROLLY MOUNTED TRANSFORMER AT

Amount

Supply, laying, testing and commisioning cable XLPE insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty) with stranded aluminium conductor, 1100 volts (Earthed) grade cross sectional area 240 Sqmm 3.5 core including all electrical connections complete.

Supply, laying & testing cross linked polyethylene insulated (XLPE) galvanised steel strip armoured cable with aluminum conductor, 11 KV `E’, of cross sectional area 95 Sqmm, three core (IS-7098) in trenches/through pipes/ducts or on poles road crossing etc complete all as specified and directed by Engineer-in-Charge.

Material and Labour cable jointing kit for HT cable 11000 volt (earthed) heat shrinkable, out door end termination joint suitable for cross sectional area 50 to 95 sqmm, 3 core aluminium conductor XLPE Cable including jointing material and accessories complete.

Material and labour for fabrication and errecting of MS channel trolly of following size, provided with four Numbers wheel of suitable size including tyre, tube and rim along with towing arrangement with vehicle and capable of sustaining load for 500 KVA transformer complete all as specified and directed by Garrision Engineer / Engineer - in - Charge :- Note :-- (i) Length , width and Height of trolly - 3658mm (Length) x 1829 mm (width) x 2300mm (Height) (ii) Main chassis MC 100 Depth of channel 100mm and width of channel 50 mm (iii) Support channel MC 75 Depth of channel 75mm and width of channel 40 mm (iv) Floor ie. base plate - 6 mm thick MS plate (v) Left, Right and Front Sides - Expended metal weight 4 Kg per square metre welded to steel frame of MC 75. (vi) Rear sides shall be made openable with locking arrangments with Expended metal weight 4 Kg per square metre welded to steel frame with three numbers 150 mm hinges on each side of MC 75. (vii) Vertical member of MC 75 shall be provided at the rate of minimum 1 metre interval or as per requirement. Top of trolly shall be provided MC 75 allaround. (viii) Axel - two numbers 63 square mm (ix) Rim - Four numbers double plated (x) Tyres : Four numbers 7-50:16 (xi) Toe hook - Forged steel (xii) Suspension : Axel will be fitted with leaf spring / suspension. (xiii) Painting - All steel members shall be spray painted with two coat of syenthetic enamel paint over one coat of red oxide primer. (xiv) Trolly shall be fabricated as per above description. Contractor shall submit sketch / line plan of trolly and the same shall be got approved from Garrision Engineer before fabrication (xv) The unit rate quoted by contractor are deemed to include the cost of all component which are required for fabrication of trolly which are not specified.

Supply, installation, testing and commissioning of step down transformer of capacity 500 KVA, outdoor type complete with standard fitting and accessories, HT 11KV, 3 Phase, LT 433 volt, 3 phase 4 wire with off load tap changer on primary side to carry secondary voltage ± 7½ % with tappings at every 2½ % all as per IS 1180-2014 Part I level 1, copper wound, oil cooling with fins vector group : DYN 11, connected to externally hand operated 12 KV off circuit tap changing switch, HT winding connected to delta & LT winding connected in star and the neutral brought out and connected to a seperate terminal for earthing with out door open porcealin bushing on HV side and cable box on LV side with tempreature raise not exceeding 35° by thermometer in oil and 40° by resistance and Ambient Tempreature 40° including initial oil filling complete all as specified including the following accessories :- (a) Three numbers porcelain bushing HT, 11KV with brass bushing rods, nuts, bolts and washers etc inside cable end box. (b) One cable box LT side consisting of 4 Nos porcelain with brass bushing rods complete with nuts and washers suitable for end connection of 3.5 core cable. (c) Oil conservator with filler type drain valve and oil level gauge. (d) Dheydrating breather with fast fill of dehydrating agent. (e) Explosion vents (f) Thermometer pocket on tank cover. (g) One number 100mm dia, dial type thermometer vapour pressure type having range 0 to 120 degree centigrade. (h) Rating plate and terminal marking plate. (j) Earthing arrangement. (k) Oil drain filter valve. (l) Oil drain valve. (m) Lifting hook. (n) Oil conservator with filling hole and cap. (o) Air relief valve plug. (p) Four plate solid cast steel detachable rollers. (q) Earth bushing for neutral outside the cable box for providing independent earthing for neutral. (r) Suitable size of channel on foundation for fixing the transformer with joint and stopper. (s) Silica gel dehydrating breather charged with silica gel. (t) Diagram and rating plate (u) Four bi directional plain roller

R.K.ASSOCIATES