PROVISIONING AND INSTALLATION OF 02 NOs 100 KVA STABILIZERS AND ISOLATION TRANSFORMERS FOR LLTR AND SUBSYSTEM AT 41WG AT AF STN JAISALMER

Amount

Supply, installation, testing and commissioning of servo voltage stabilizer (Conforming to BIS 9815 : 1994) for automatic operation, three phase, naturally oil cooled, copper wound, metallic body duly powder coated with lifting hooks 2 Nos, digital display type realy free smooth and silent operation indoor type of capacity 100 KVA complete all as specified and directed. (i) Applicable standard - IS 9815 : 1994 (ii) Input voltage range -300-480 Volts 3 Phase, 50 Hz, 4 wire & earth. (iii) Output Voltage - 415 +-1% VAC accuracy, 3 phase, 50 Hz 4 wire & earth. (iv) Line regulation - Line to load regulation 1%. (v) Type of load - Three phase unbalanced type. (vi) No distribution in wave form. (vii) Correction range - 8V/Sec for single phase and 13 V/Sec for phase to phase. (viii) Efficiency - Above 95% (ix) Response time not to be exceed 20 mili second. (x) Noise level - <55db at a distance of 1 mtr (xi) Monitoring and Electronic circuit - Microcontroller and DSP base electronic card with inbuilt LCD Display, Input L/L and L/N voltage monitoring, output L/L and L/N voltage monitoring, Load current phase wise monitoring, Input line indication. (xii) Protection- Input 3 pole MCCB with shunt release coil for high/low voltage protection and oveload and short circuit protection, output 4 pole change over switch for by pass, 10 Sec on time delay, RF filter, spike booster reverse phase protection, single phasing protection, Earth protection & Neutral protection circuit, spike & surgeprotection. Note :- 1. Amount for 1st filling of transformer oil up to level deemed to be included in quoted rates.

Supply, installation, testing and commissioning of indoor type oil cooled isolation transformer 100 KVA, three phase, metalic body, unbalanced type copper wound with standard fittings and accessories, input voltage of 415 volt + 5% output voltage 415 volt+ 5% of frequency 50Hz and with following description including first fill of transformer oil:- (a) Method of cooling - Oil cooled. (b) Ratio - 1: 1 (c ) Insulation class -Class -E (d) Winding Temperature - Less than 55* C (e) Full load lossess- Less than 5% (f) No load lossess - Less than 0.5% (g) Mounting - On wheel detachable type (h) Earth to Neutral voltage - Less than 01 volt. (j) Common mode noise rejection over 100 db. (k) Coupling capacitance :- Less than 1PF (l) Insulation level : More than 100meg ohms. (m) Breakdown strength :- 2500V AC for 2 miniutes. (n) Load regulation : About 3.5% (o) Line leakage current : Less than 50 mirco amps upto 1 KVA.

Supply, laying & testing cable XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heay duty) with aluminium conductor, 11000 volts grade, of size 3 core 95 Sqmm complete all as specified and directed.

Supply, laying & testing XLPE insulated, screened,heavy duty electric cable with aluminium conductor, 1100 volts grade, cross-sectional area 95 Sqmm 3.5 Core complete all as specified and directed.

Supply, laying & testing XLPE insulated, screened,heavy duty electric cable with aluminium conductor, 1100 volts grade, cross-sectional area 70 Sqmm 3.5 Core complete all as specified and directed.

Supply, laying & testing XLPE insulated, screened,heavy duty electric cable with aluminium conductor, 1100 volts grade, cross-sectional area 50 Sqmm 3.5 Core complete all as specified and directed.

Supply and replace Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core 95 sqmm XLPE armoured aluminium conductor cable including cutting and removing existing unserviceable joint, excavation near 2/4 pole structure / HT Panel board / Transformer and taking out loop cable from trench and refilling the trench with excavated material acomplete all as specified and directed.

Supply installation , commissioning and testing of chemical gel earthing system with single pipe technology to construct earthing of resistance not more than 01 ohm mainly consisting of 250 micron pure copper high tensile low carbon steel rod earth electrode of minimum 3.0 m length , 50 mm dia with copper strip of size 20 x 3.15mm for inter connection to earth electrode and for connected to equipment as per required length, with set of steel nut and bolts, earth enhancement material of mainly consisting of Jamfill compound 50 kg (25 x 2 bags in each pit) jam fill to provide maximum contact between the electrode and jam fill compound. Back fill compound. Jam fill compound shall be eco friendly having CPRI certification, Earthing shall be maintenance free and does not require regular manual addition of water and PCC (1:3:6) type C1 (using 20 mm graded stone aggregate) earth chamber and Earth Pit cover 300 x 300mm . Earth continuity conductor beyond 7.5 mtr shall be measured and paid separately. Note No.1 :- Copper strip of size 20 x 3.15mm required to connect the electrode shall be passed through GI pipe of suitable size. Note No.2 :- Quoted rate deemed to include the cost of excavation and earth work, PCC pit, funnel and cover etc. Note No.3:- Copper strip beyond earth test point shall be mearued and paid seperately.

Supply and fix Copper strip 20 x 3.15mm with saddles and fixing screws etc for roof conductors and down conductors above ground complete all as specified and directed.

S& F Pipes galvanised medium grade supplied & laid complete incl. fittings complete of dia 40 mm all as specified and directed.

Supply & install, test commission of LT panel outdoor type size 1800mmx1400mmx300mm cubical type made out of 3.15mm thick CRCA sheet over a angle iron frame size of 40mm x 40mm x 6mm grouted in PCC (1:2:4) type B-1 20mm graded crushed stone aggregate thimble and cable entry boxes with cable glands, panel should covered from all side with front and back lockable door & higes, prewired comprising of copper bus bar of rating 400 Amps including multi-functional digital meters to read Voltage, Current, Frequency and power factor, painting with two coats synthetic enamelled paint over a coat of red oxide primer and consisting following complete :- (a) MCCB 415V, 4 pole ,250Amps, 36 KA )- 01 No.(in coming) (b) MCCB 415V, 4 pole ,160 Amps, 25 KA - 02 No. (Out going) (c) MCCB 415V, 4 pole 100 Amps, 25 KA - 02 Nos. (Out going) (d) MCCB 415V, 4 pole 63 Amps, 25 KA - 01 Nos. (Spare) (e) Set of Indicating lamps(RYB) -01 set (f) Space to accommodate 50(25x2) KVAR capacitor

Excavating in trenches not exceeding 1.5 mtr wide and not exceeding 1.5 mtr deep for foundation etc for laying of cables, erection of poles, struts/stays etc not exceeding 10 sqm on plan area in soft/loose soil complete all as specified and directed.

Returning, filling in, including, spreading, leveling, watering and well ramming in layers n.exc. 25 cm in soils complete all as specified and directed.

Removing excavated soil n. exc 50 m and depositing where directed at a level n.exc. 1.5 mtr above the starting point complete all as specified and directed.

M & L for providing 40 to 50 mm thick rough dressed Jodhpur type stone slab 25 to 35 cm in width and length not less than 80 cm laid dry abutting each other for protection of underground cable complete all as specified and directed.

M & L for sand cushioning to underground cable in trench complete all as specified and directed.

SANJOLI CONSTRUCTION COMPANY

S.G.ENGINEERING COMPANY

M/s Ramesh & Company

CHIME ELECTRONICS

star electricals

M/S AUTOMATION AND SWITCHGEAR CONTROL

M/s Yash Electrical and Maintenance

Nvimal Engineer and Contractor

Pioneer Enterprises

M/S JAGDAMBA ENTERPRISES