PROVISION OF TROLLY MOUNTED 400 KVA STEP DOWN TRANSFORMER AT CDM SECUNDERABAD UNDER AGE EM NO I OF GE UTILITY SECUNDERABAD

Amount

Supply, installation, Testing and commissioning of double wound copper transformer step down, outdoor type complete with standard fittings, primary voltage of HT 11000 Volts and secondary LT 433 volts, 3 Phase 4 wire with frequency 50 c/s. Provided with 7 No of off load tappings on HT side to vary secondary voltage within range of +5% to - 10% (in steps of 2.5%), star delta connections with vector group of Dyn 11, Impedance of 4.5% and including first filling of transformer oil as per IS:335 and colour coating with one coat of primer and two coats of BS grey colour. Losses all as per IS:1180 (Level - ii) of capacity of 400 KVA with all standerd accessiories required proper functioning of Transformer including the following :

(a) Rating and Terminal marking plate- one b) Earthing Terminal- Two (c ) Lifting Lugs- Two (d) Drain valve with Blanking plate - One (e) Filter Valve with blanking plate- One (f) Conservator-One (g) Oil Level indicator with minimum marking (h) Dyhydrating breather-One (j) Air Release devise - One (k) Thermometer Pocket-One (l) Pressure relief valve - One (m) Roller unidirectional-Four (n) Both side (HV and LV) cable Box (o) Separate Brought out Neutral Terminal p) Off Circuit Tap Changer (q) 100 MM dia stem type Thermometer Make: Essenor/HIT/ABB/Schneider/BHEL Note: Commissioning of the transformer to be done by SEI/EI as detailed . Contractor should intimate one month in advance for commissioning of the same. Necessary arrangement for testing to be done by the contractor . Rates for the same deemed to be included in the quoted rate.

Supply of Trolley size of 3658mm Length X 1829mm Width X 2300mm Height with main chassis of size 100mm X 50mm MS channel of 6 mm thick, support channel of size 75mm X 40mm MS channel of 6 mm thick and floor with 6mm thick chequred plate. Side walls made up with welded wire mesh and Rear door fixed by hinges & lock. Axle 02 Nos of 63mm square, rim double plated 04 Nos. Tyres 04 Nos of size 7-50:16. Toe hook shall be made of forged steel, suspension system axle will be fitted with leaf spring and roof covered with GI sheet. Isolator and fuse mountings are of 63X63X40cm Box Pipe including connection between transformer and switch fuse box , 500 amps main switch 4 pole with HRC fuse protection , 50x50x5mm MS Angle and 75x38 mm " C" Channel clamp 2 nos for transformer. Carrying capacity of 5 Ton for mounting of 400 KVA Transformer. (Drawing of trolly attached). rate quoted by the contractor inclusive of the following : i) connection with flexible single core copper cable 1100 volt grade of size suitable for full load current ratings of transformer from transformer to Mainswitch. ii) Main switch 500 amps 4 pole with and incl HRC fuse including necessary fixing arrangement with its closed enclosure. Make : Narain Trolly Udhoyg / New India equipments/ Indotech engineers / as approved by GE

Supply, lay, connect, testing and commissioning of HT cable XLPE insulated screened PVC bedded galvanised steel strip armoured electric power cable heavy duty with aluminium conductor 11000 volts(E) grade corss sectional area of 95 Sqmm 3 Core confirming to IS:7098 Part-II laid in trenches/floors complete including lugs all as directed. Make : Havells/Gloster/Polycab

Supply, lay, connect test and commissioning of solid copper conductor cable XLPE insulated screened PVC tape innersheathed, unarmoured electric power cable heavy duty with aluminium conductor 1100 volts grade corss sectional area of 240 Sqmm single Core confirming to IS:7098 Part-I laid in trenches/floors complete including lugs all as directed. Make :- KEI Industries Ltd or equivalent in Havells/ Polycab/Plaza/Gloster

Supply ,Fixing and testing of cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm complete all as specified and directed. Make :- M Seal/Raychem or equivalent in Denson/3M

SANJEEV CONSTRUCTIONS

omsai thermax engineers

L and S ENTERPRISES

Mavee Syndicate