PROVISION OF TRANSFORMER WITH SUB STATION EQUIPMENT FOR CISR FIRING RANGE AND NEW ARMOURY AT INS DRONACHARYA UNDER GE FORT KOCHI

Supply and lay for XLPE insulated sheathed earthed PVC bedded galvanized steel strip or wire armoured electric power cable heavy duty with aluminium conductor 11000 volt grade cross sectional area 95 sqmm 3 core complete from trenches/poles/surface complete all as specified and directed.

Material and labour for XLPE cable joining kit end termination heat shrinkable type in door type suitable for HT U/G cable 95 sqmm to 120 sqmm 3 core 11000 volt grade complete all as specified and directed by the Engineer-in-charge.

Supply and fixing / laying GI tubing 100mm dia light grade as cable protection in road cutting etc complete all as specified and directed by Engr incharge.

M&L for earthing complete with galvanized steel earth plate electrode 600x600x6mm thick buried directly in ground /earth pit not less than 2.25m deep below the ground level with top edge of the plate not less than 1.5 m below the normal ground level connected to GI strip of 32x6 mm by means of nut, bolts, check nuts and washers of galvanized iron or steel as shown in electrical plate No. 3, including necessary earth work and excavation charcoal dust, common salt, PCC chamber, RCC cover 40mm thick 1:2:4 using 20mm graded stone aggregate reinforced with 6mm dia round bars 75mm C/C both ways, test point and watering pipe complete, including connecting to earthing test point or to DB/Panel complete as directed by Engr in charge and testing resistance etc complete all as specified and as directed. Note: (i) The rate quoted shall be deemed to be included for main earth lead from earth electrode to test point up to 7.5 m only. (ii) On testing after completion if the desired earth resistance not optained as per IE rules the earthing will be redone by the contractor as directed by Engnr in charge with out any extra cost to Govt.

Supply, installation, testing and commissioning of distribution transformer mounted on masonary platform stepdown 11 KV /0.433 KV three phase complying with IS 2026 and 1180 / IEC -76 ( part -1) 2014 with latest amendments, outdoor type, copper wounded suitable for 50 Hz system of capacity 250 KVA oil immerged naturally cooled Delta connected on HT side and Star connected on LT side ,victor group Dyn 11, provided with OFF Load tap changer to vary secondary voltage from ( -) 7.5 % to (+) 7.5% in step of 2.5 % losses should be confined to the limits specified as follows: maximum allowable losses at full load (100%) and half load (50%) shall not be exceeded 1.12 % and .79% respectively asper GRIHA RATING , Percentage impedance 5% losses and impedance are subjected to tolerance as specified in IS 1180. The transformer should be supplied with first filling of oil confirming to IS 335. The transformer should have both side cable end box with neutral brought out complete all as directed by Engineer - in - Charge and installation of transformer shall be carried out as per IS - 10028 and comprising with the following standard fittings / technical specification :- Transformer 250 KVA , Level-2.

(a) Lifting lug for Transformer and Tank. (b) Earthing terminal rating and diagram plate. (c) Air release device. (d) Oil filling inlet pipe with plug. (e) Drain outlet pipe with brass gate valve (f) Conservator tank with oil level indicator (g) Silica jel breather (h) first fill of oil up to level including conservator tank with fresh new oil confirming to IS335. (i) Type of connection delta/star. (j) Type of cooling: Oil and natural Air. (k) Vector group:DYN11. (l) Temperature rise over an ambient of 50 0C maximum. (m) Cable and box on both side of HT/LT cable of suitable size. (n) Provision of thermometer with pocket

Supply and Installation, testing commissionning of 11 KV, 630 Amp, 50 Hz, Load break switch (LBS )system with an earth switch and bus coupler, typically 18.4 kA to 26.3 kA for 3 seconds, utilizing SF 6 gas/vacuum to quench the arc for a one incoming and two outgoing configuation a type of medium voltage switchgear panel designed for safe and flexible power distribution and isolation commonly used in RMU complete all as specified and as directed

Supply, installation, testing and comissioning of weather and vermin proof outdoor type Panel box factory made, single door type, CPRI approved, fabricated out of 3.0 mm thick CRCA sheet compartmentalized design including mild steel channel frame of ISMC 75 at the base of panel only for grouted wiht PCC using 20 mm graded stone aggregate, duly epoxy powder coated, complete with heat shrink insulated aluminium bus bar of 600 Amps rating 4 Nos, including all connections with aluminium strips, Pillar box shall be provided with danger notice plate with skull & bone sign, PVC gasketed and sealed, making all incoming and out going electrical cable connecetions with new lugs, glands to be provided at cable entries, including angle iron support 50x50x6 mm with 50 CM height from ground level at the base of panel complete all as specified and as directed. The panel shall be comprising of following accessories:

Incommer :- (a) ON LOAD change over switch, 415V, hand operated , 4 pole of capacity 400 Amps.- 1 Nos Make - L/T, Havells, Schneider. (b) MCCB, 400 Volts, 50Hz, 0 Amps, 36 kA, thermal magnetic release, front face isolataion with positive break indication with double break contacts with spreader and phase barrier - 01 Each incommer. (c) Multi function digital energy meter with RS 485 communication port with CTs -01 set (d) Phase Indicator lamp assy RYB - 06 Set. Out going :- (a) MCCB, TPN 415 Volts, 50Hz, 250 Amps, 25 kA, thermal magnetic release, front face isolataion with positive break indication with double break contacts with spreader and phase barrier - 01 Each. (b) MCCB, TPN 415 Volts, 50Hz, 200 Amps, 25 kA, thermal magnetic release, front face isolataion with positive break indication with double break contacts with spreader and phase barrier - 01 Each. (c) MCCB, TPN 415 Volts, 50Hz,160 Amps, 25 kA, thermal magnetic release, front face isolataion with positive break indication with double break contacts with spreader and phase barrier - 01 Each. (d) MCCB, TPN 415 Volts, 50Hz, 63 Amps, 16 kA, thermal magnetic release, front face isolataion with positive break indication with double break contacts with spreader and phase barrier - 01 Each (e) Stencelling of panel board including marking distributions -01 job. (f) Spare Compartment for future expension -02 Nos

Supply & installation of APFC Panel, fixing, connecting and commissioning and testing of power factor improvement static condenser ( capacitor banks ) of capacity 150 KVAR, outdoor type panel made out through factory fabricated, factory assembled and pre connected, weather, dust and vermin proof suitable for 1100 V grade 03 Phase 50 Hz AC supply floor mounted, fabricated out of 3.0 mm thickness CRCA sheet, CPRI approved with front door and back opening having locking arrangement pre-wired with copper conductor PVC insulated cable / Extension strips and connected with suitable size thimbles / lugs duly painted with darken grey epoxy power coating after suitable chemical treatment, legs duly imbedded in floors above ducts in PCC 1:3: 6 of suitable size including locking arrangement suitable for mounting, with required sheet metal enclosures, thimbles, complete all as specified and directed by Engr – in – Charge and all other electric incoming and outgoing connections with PVC insulated multi stranded copper wire of suitable size and PVC flexible conduit medium quality as required comprising of following :- (i) (a) Bus bar of Aluminium of 600 Amps Capacity 04 Nos for 3 phase and neutral mounted on Insulators with heat shrinkable insulated sleeves with colour code. (b) Incoming MCCB 250 Amp, 36 KA, 03 pole- 01 No (c) Capacitor 150 KVAR ( 05 KVAR X 2+ 10 KVAR X 04 + 15 KVAR X 04 + 20 KVAR X 02), MDXL type, IP set dry type capacitor non toxic and ecological polyurethane resin with self healing film, 03 phase 50 Hz with out put tolerance -5 % to 10 % having discharge device, THD should be 30%, heavy duty, Square or Round type , Make : L&T / ABB /CROMPTON/SEIMENS (d) Programmable APFC relay having following features, display of Current, Voltage , P.F, KW .12 Step ( 144 mm X 144 mm ) of Make : L&T / ABB /CROMPTON/SEIMENS - 01 No (e) Ammeter 0 – 5 Amp , 230 Volts , AC with selector switch , Make :- AE / L&T - 01 No (f) Volt meter ( 0 – 500 Volts ) , AC with selector switch Make :- AE / L&T - 01 No (g) 63 Amps TP Control MCB / Cam lock fuse, Make :- L&T / ABB /CROMPTON/SEIMENS -- 04 No’s