PROVISION OF 315 KVA TRANSFORMER FOR MIRC AHMEDNAGAR UNDER GE (SOUTH) AHMEDNAGAR

Amount

Supply, laying, testing & commissioning of HT 11 KV (Earthed) XLPE insulated screened PVC bedded, electric power cable (heavy duty) with aluminium conductor 11000 volts grade,circular screened with extruded semi conducting compound in combination with copper tape , inner sheath of PVC tape galvanized steel strip flat , around and overall PVC sheathed, armoured conforming to IS 7098 Part II, 1985 amended upto date, of size 3 core 95 Sqmm, ISI marked, laid in trenches or passing through pipes/ducts all as specified and as directed. Note :- 1. Cable shall be tested at high voltage test before & after laying. 2. No straight through joint will be permitted inside pipe or duct. Cost of straight through if any deemed to be included in cost of cable.

M & L cable jointing kit end termination for HT 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm 3 core.

Supply, laying,testing and comissioning LT underground cable XLPE insulated screened PVC bedded, galvanised steel strip or wire armoured , electric power cable (heavy duty) 1100 volt grade with stranded aluminium conductor of size 300 sqmm 3.5 core

Supply, installation, testing and commissioning of outdoor, AC three phase , 50 HZ, 315 KVA capacity transformer step down , out door type 11000/433 Volt (at No Load) copper wound , oil immersed , naturally cooled with external cooling tubes, core type delta connected on primary (HV) side and star connected on secondary (LV) side in accordance with vector symbol DYN-11(vector groound-4) with neutral brought on secondary (LV ) Side & having tapping in equal steps of 2.5% from (+) 5% to (-) 7.5% on primary side by means of hand operated off load tap change /correct LT voltage on secondary side including provision of all necessary / standard fittings mainly comprising of:-

(a) Primary HT side having HT porcelain bushing 3 Nos with brass gun metal bushing rods complete with nuts and washers. (b) One cable box on secondary LT side consisting of 4 Nos porcelain bushing with GM bushing rods complete with GM nuts and washers with one No cable gland suitable for reception of outgoing LT PVC sheathing armoured cables of size 95 Sqmm 3.5 core. (c ) Oil conservator with filter type , drain valve and oil level gauge. (d) Dehydrating breather with first fill of dehydrating agent. (e ) Explosive Vents (f) Thermometer pocket on tank cover. (g) One No 100mm dia dial type thermometer vapour pressure type having range 0-120 degree centegrade with temp reading pointer, max temp indicator and resetting device.

(h) Rating plate with terminal markings.(j) Two earthing terminals on tank/tank cover to facilitate fixing of 32x6 mm GI Earth strip. (k) Oil Level gauge. (l) Oil Drain and filter valve (m) Oil filter hole with cap/plug with connections complete. (n) Lifting Lugs (o) Air Relief valve plug (p) Four plain solid cast steel detachable rollers. (q) First fill of fresh oil conforming to relevant IS and tested upto 40 KV dielectric strength. (r) Extra bushing for neutral outside the LT cable box for providing independant earthing for neutral. (s) Provision of 02 Nos of danger board 250x200mm size made out of 1.6 mm thick MS Plate, vitreous enameled white with letters, figures in marathi, Hindi and english of voltage and conventional skull and bones in signal red colour , one at HT side and other on LT side.

(t) Any other fittings /accessories so as to conform the whole transformer to IS-2026. (u) Buccholz Relay.

M&L for factory made trolly of size 2 m x 4m made of angle iron /chanel sections of suitable sizes, mild steel plate not less than 5 mm thick, duly welded and mounted on front and rear axle suitable to carry 1 ton (transformer 315 KVA) with accessories including toing arrangement four wheels duly supported by double leaf spring, eye on axle with braking arrangement,manual retractable jacks on all four sides,covered upto 75cms from all sides complete with pully, MS rod toing hook, 04 Nos wheel tyre of CEAT/MRF/Dunlop having size 6.oox16, 8 ply ratingtubeless with MS disc, MS platform of suitable size for mounting 315 KVA transformer, two nos of wheel drum with rotating arrangement on either side of transformer to roll HT and LT cables on drum as per requirement of transformer, lockable space for keeping tools and cables complete all as specified and as directed by Engineer-in-charge. Note- the cost of mounting transformer on base of platform with nuts, bolts and washers of adequate size, installation of cable both HT and LT side and rolling on wheel drum shall be included in the cost quoted by bidder.

Pritam Electro Mechanical Services

Mahindra Electric Stores

Mayur Enterprises