PROVN OF 100 KVA ISOLATION TRANSFORMER AND 100 KVA AUTOMATIC SERVO STABILIZER AT AFS KUMBHIRGRAM

Supply install, testing and commissioning of Isolation transformer of 100 KVA capacity 3 phase, 50 HZ, Outdoor, copper wound, oil cooled, class of insulation A, metallic body duly powder coated designed for input voltage range 415 (+/-5%) and output voltage range 415 (+/- 5%), Ratio 1:1, vector group: Dyn 11, Delta-Star with first filling of transformer oil of requisite dielectric strength uo to level, efficiency more than 95%, separate neutral bushing shall be brought out for earthing potential difference between neutral to earth less than one volt with all standard fittings like digital temperature meter, adequate number of cooling radiators, lifting hooks one set, Earthing terminal two nos complete along with necessary bypass arrangement in case of emergency. Testing as per BIS 9815 and 2026. Note: Factory inspection and testing (Physical examination, IR value, HV test, leakage current test, E-N voltage test, no load current test, measurement of no load losses, induced voltage test, measurement of full load losses and efficiency) to be carried out by rep of accepting Officer. Quoted rate inclusive of all arrangement required for the same.

Supply, Install, testing and commissioning of 100 kVA Servo Voltage Stabilizer (confirming to BIS 9815: part-1:1994 reaffirmation 2019 latest version), 3 Phase, 50HZ, Naturally oil cooled, Indoor, unbalanced type, copper wound, metallic body duly powder coated with lifting hooks four nos, digital display type relay free smooth and silent operation with 1st filling of transformer oil (ISI marked) up to level having following specification: Make: Volina, (a) Input voltage: 360V - 480V (a) Output voltage stabilizer at any design/desired voltage 415V (+) or (-) 1% (c) Rated frequency 50HZ (d) No distortion in wave form. (e) Response time not to exceed 20 milli seconds (f) Sensitivity (+) or (-) 1% (g) Rate of correction 8Volts / Seconds for single phase and 13V / Seconds for phase to phase (h) Efficiency more than 95% (i) Type of load: 3Phase, unbalanced type. (j) Digital display voltmeter / Ammeter (k) Insulation class - 'F' (l) P.F not less than 0.95 (m) Operating temperature:- for indoor use upto maximum ambient temparature +55° C. (n) Mode of operation:- Automatic/ manual. Protection:- (a) Overload & Short circuit protection. (b) High & Low voltage cut off (c) By pass arrangement in case of emergency (d) Single phase sequence change protection/phase fail protection. (e) Earth fault protection. Note: Factory inspection and testing (Physical examination, IR value, HV test, leakage current test, E-N voltage test, no load current test, measurement of no load losses, induced voltage test, measurement of full load losses and efficiency) to be carried out by rep of accepting Officer. Quoted rate inclusive of all arrangement required for the same.

Supply, installation, testing & commissioning of powder coated compartmentalized cubical LV panel indoor type fabricated out of 2.00 mm thick CRCA sheet steel weather proof vermin proof and suitable for operation on 415 volts, 50 Hz, 3 phase, 4 wire AC supply complete with gland plates, cable glands, lifting hooks, ventilating louvers, bus bars, inter connections, earthing, labeling electrical interlocking, suitable for termination of cables, mounted/fixed on and including MS angle iron stand /frame 40 cm height from FFL ,fabricated out of 50x50x6 mm thick MS angles duly grouted in PCC 1:3:6 foundation, including supply and fixing of following switch gear and accessories in the panel, complete as required. The panel should be manufactured by CPRI approved panel maker and having protection IP-43. Make: L&T (LK), Schneider, ABB INCOMER (i) 01 No MCCB, 415 Volts, 4 Pole, 200 Amps, Thermal magnetic release rating with rupturing capacity 25 KA with variable overload / Short ciruit / Earth fault. (ii) Spreader links 4 pole for above MCCB (Set of 8) (ii) 01 No digital type Ammeter, Voltmeter to show 0-500 V voltmeter with selector switch, 0-500 A ammeter with selector switch and set of cast resin C.T's 250/5A. (iii) 01 set of Phase Indicating lamp with MCB. BUSBARS :- (i) Aluminium bus bars (1*25*10) PVC colour sleeved 250 Amps capacity TPN mounted on hygroscopic insulator duly colour coded RYB & Green sleeves. OUTGOING :- (i) Onload Change over switch 160 Amps - 03 Nos

Supply, laying and testing cable XLPE insulated, un-armoured heavy duty electric cable with aluminium conductor, 1100 volts grade, cross-sectional area 95 sq mm 3.5 core including all necessary components/accessories/cable lugs (climping type) jointing materials and consumables to make a complete connection complete all as specified and directed. Make: KEI, Polycab, Havells

Supply and fixing the C-Line Manual Changeover Switch 150A, 4P, 415V, AC, (Conforms to IEC 60947-3, IS/IEC 60947-3) SS Enclosure Extended Handle soft change over switch with Terminal Shrouds, Source Separator and Phase Barriers included Staggered Terminals make cable termination easy Suitable for horizontal as well as vertical mounting. Make: L&T, Havells, Schneider, ABB

Excavation in trenches not exc. 1.5 Mtr wide and not exc 1.50 Mtr in depth for foundation etc. and getting out in hard/dense soil complete all as specified and as directed.

Returning filling in hard/dense soil, including spreading, levelling, watering and well ramming in layers not exceeding 25 Cms complete all as specified and as directed.

Removing excavated soils to a distance not exc 50 Mtr and depositing where directed at a level not exceeding 1.5 Mtr above the starting point complete all as specified and as directed.

Supply and spread fine dry river sand 23 cm thick layer for cushioning of cables laid in trenches, leveling, watering, punning to 18 cm from 23 cm by compacting all as directed. (Punned depth shall be measured and paid)

Supplying and laying unreinforced precast concrete cable cover, Class LV, type I, flat size 250mm x 150mm x 40mm complete all as specified and as directed by Engr-in-charge.