HIDCO/GM (Elec)_eNIT-14/2024-25

Amount

11/0.433 KV 630KVA OUTDOOR COMPACT SUBSTATION STRUCTURE Outdoor type enclosure having modular construction of 1.6/2.0 mm CR sheet steel. The enclosure shall have IP54 degree of protection for HT & LT compartment & IP23 degree of protection for Transformer compartment. The enclosure exterior shall be painted with epoxy based powder coated paint ( colour RAL 7032 ). The bottom base frame shall be welded and black painted Channel structure with lifting arrangement for the completely assembled CSS. Each compartment is provided with door and pad locking arrangement. The Compartment illumination lamp with door operated switch shall be provided for each compartment. The Transformer compartment is provided with Limit switch to trip the HT Switchgear, in case the Transformer compartment door is inadvertently opened in LIVE condition. HT SECTION- SF6 Insulated Ring Main Unit RMU (SF6 gas insulated ): Sheet steel enclosed, free standing, indoor mounted, 11 kV,630A, 21kA/3s, 1 WAY Non - extensible RMU, consisting of One no. direct connection of Incoming supply cable upto 300sq mm and one no. VCB( Manually charging & closing), Self Powered Relay 3 O/C +1 E/F Relay type CSPR-V5 C&S Make , mechanical ON/OFF indicator, trip coil , Emergency Trip PB, live cable indicator, mechanical interlocks, pad locking facility, SF6 gas manometer, cable boots, 3 nos. CTs with Ratio - 30/60/1A, Cl: 5P10, 2.5 VA for protection Cable connection arrangement from outgoing of HT section to primary of Transformer by 11kV (E) XLPE unarmored 1C x 95sq.mm. Aluminium cable per phase along with heat shrink cable kit. TRANSFORMER SECTION 630KVA , 11/0.433KV DYn11 Cast resin dry type transformer with Off circuit tap link having tapping range of +5% to -5% in steps of 2.5%, Z% : 4% (IST) with NLL at rated voltage & freq : 1.0 KW (IST) and LL at 75 Deg. C & at Principal tap : 4.0 KW (IST), Class F insulation , temp rise : 90 Deg C , 3nos. Surge Voltage arrestors 9kV 5kA polymeric make Asiatic make/ Eq, 1 no. Digital WTI with Alarm & Trip contacts. LT SECTION 1000A Aluminium PVC sleeved Busbar from transformer Secondary to LT Section ( 100% for phase & 50% for N, Current density - 1A/ sq mm) Main Incoming cum Outgoing 1000A 4Pole ACB, 50 KA Microprocessor based release for o/c and s/c as ICOG 630 KVA,50 Hz.11/0.433 KV. Compact Substation with all accessories complete. MAKE - Siemens/ABB/Schnider *****NOTE: Liason & paper processing & layout diagram & towards testing & supervision of total Electrical installation work & submitting TEST report to D.O.E. & WBSEDCL office. High pressure test of all equipments & cable insulators by the authorised concern of Directorate of Electricity for getting approval from D.O.E for getting installation approval from D.O.E. Govt. of W.B. must be submitted after Execution Above work which cost is included in above BOQ. Make : ABB/Siemens/Schinder

Cost Of RCC foundation aloing with excavation and earth filling

Earthing with 50 mm dia GI pipe 3.64 mm thick x 3.04 Mts. long and 1 x 4 SWG GI (Hot Dip) wire (4 Mts. long), 13 mm dia x 80 mm long GI bolts, double nuts, double washers incl. S & F 15 mm dia GI pipe protection (1 Mts. long) to be filled with bitumen partly under the ground level and partly above ground level driven to an average depth of 3.65 Mts. below the ground level as below: By TATA-Medium GI pip

Connecting the equipments body to earth busbar incl. S & F 50 mm x 6 mm Galvanized (Hot Dip) MS flat on wall/floor with GI saddle as required and connection to equipments with incl. drilling holes, bolts, nuts,washers etc

Earthing with 80 mm dia GI pipe (TATA-Medium)x 3.0 Mts. long and 1 x 19/8 stranded GI (Hot Dip) wire (4 Mts. long), 25 mm dia x 150 mm long galvanized bolt, double nuts, double washers including socketing at both ends of stranded GI (Hot Dip) wire by crimping sockets/ thimbles and S & F 40 mm dia GI pipe (ISI-Medium) protection (3 Mts. long) to be filled with bitumen partly under the ground level and partly above ground level to an average depth of 3.65 Mts

Extra for providing masonery enclosure on the top of the earth electrode of overall size 86.36 cm x 86.36 cm x 46 cm deep (below Ground level) complete with cemented brick work(1:6) of 25 cm width duly plastered with cement morter (inside) CI hinged inspection cover of size 36.56 cm x 35.56 cm with locking arrangement, GI reducer including drilling of 46 nos. 12 mm dia holes on the GI pipe

Extra for treatment of soil by using salt & charcoal or coke for plate electrode

Extra for connecting the neutral of Transformer/Earth busbar to earth electrode including S & F 50 mm x 6 mm Galvanized (Hot Dip) steel strip on wall/floor with GI saddles & insulating the same by one layer of PVC strip over one layer of ampere tape

Earthing with Copper plate (610x610x3mm size) having weight of 9.84 Kg and 1 No. 25x5mm Copper strip (3.20 mt long) & 1 no. 6 sqmm PVC insulated stranded Copper wire (4 Mt long) incl. S & F 15 mm dia GI pipe (ISI-Medium) protection (4 mt. long) to be fillied with bitumen, partly under the ground level & partly above ground level to an average depth of 3.65 Mts. below the ground level and restoring the surface duly rammed incl. providing 3.0 mt long, 25 mm dia GI pipe (ISI-Medium) for periodic treatment.

Supply, Fixing and connecting Copper Strip 50 x 6 mm for Neutral Earthing

ELECTROMECARR

RELIABLE CONSTRUCTION

ANAMICA ENTERPRISE