AUGMENTATION OF HT SUPPLY ALONG WITH RMU AND CONNECTED ACCESSORIES FOR CG ENCLAVE CHICOLNA GOA UNDER GE (I) CG GOA

Supply, installation, testing and commissioning of 11KV, 630 Amps having short circuit capacity 21kA/3-sec, outdoor (IP-54 type). RMU (Ring main unit) 3 x way outdoor, extensible motorised SCADA compatible RMU consisting of two incoming with load break switch and 2 Nos feeder with VCB (LBS 2 Nos + 02 VCB), outdoor use self powered relay Air Insulated metering PT module, copper bus bar of suitable capacity all inside single, gas filled, robotically welded stainless steel 304 (Non ferrite Non Magnetic Grade) tank with minimum thickness 2mm, IP67 Degree of protection, internal arc classified 21kA/1 sec as per IEC62271-200. The enclosure shall have pad lockable with anti theft hinges, fully covering the front facia and cable boxes to ensure fail-safe anti theft protection complete all as specified and as directed with following specifications :-

(a) Two No. 630 Amps capacity triple pole metal clad HT control panel totally enclosed extended pattern air insulated metal clad housing, floor mounting vertically isolated, vermin proof, fully interlocked horizontal draw out type having double isolation features & control devices with grounded neutral system and equipped with the following equipment :- (i) One set of 3 phase 630 Amps air insulated, tinned copper bus bar with insulated colour coating (ii) One set of side frame for housing for circuit breaker carriage. (iii) 3 Nos 630 amps isolators plugs (iv) One Set of mechanical interlock and automatic shutter system. (v) Three 630 Amp triple pole 350 MVA rupturing capacity VCB with automatic drop out and manually charged and motor operated spring closed mechanism complete with auxiliary switches, track mounted draw out, vacuum circuit breaker, incorporating mechanical as well as electrical ON/OFF indication, mechanical indication "ON" push button for emergency trip and 30 Volts DC trip coil. (vi) One cable box suitable for reception for 95/185/300 sqmm HT XLPE 3 core under ground cable 11000 volts pressure. vii) 03 Nos double wound current transformer dual ration 150/100 5-5 amps for protection and metering having adequate VA burden and accuracy (viii) One Set of 4 Nos LED lamp for indicates ON/OFF/Trip/Charging.

(ix) One 3 phase horizontal draw out type voltage transformer 100 VA burden and accuracy mounted on the draw able housing for 11000 volts/110 volts with protection fuse. (x) 144mm square type CT operated flush pattern digitals amps meter scaled with dual range 0-200 amps with there way on/off rotary selectors switch (xi) Scada compatible, one set of 3 pole micro process relay 3 phase over current, earth fault relay with high set & RS 485 Port (xii) One 144mmm square PT operated flush pattern analog volt meter 0-15 KV scaled operated with and including three way rotary type selector switch (xiii) One No volt coil to trip the VCB on failure of electric supply (xiv) One set of mechanical interlock and automatic shutter gear (xv) 230 volts AC single phase 80 watt rated strip heater with switch and thermostat space heating. (xvi) Provision of 30 volts DC tripping system with suitable power pack including, siren/horn alarm and accept switch and over voltage protecting relay (xvii) Provision of motor charging with AC motor operated on 230 V (xviii) Inbuilt Power pack 30V DC to be provided with panel at least for 30 minute Back up.

(xix) Annunciator complete with showing type of fault, accept/reset button with minimum 12 windows and suitable for auxiliary supply voltage 30 volt-1No (xx) Under voltage single phase/over voltage relay - 5 No. (xxi) Trip Circuit supervision Relay (VAX) - 1 No

Supply and laying in trenches/ duct of HT under ground XLPE insulated screened PVC bedded galvanized steel strip or wire armoured, electric power cable (heavy duty) with aluminium conductor suitable for 11 KV grade (Earthed) cross sectional area 95 sqmm, 3 core complete all as specified and as directed. Note : Necessary earthwork, cable protection items shall be measured & paid separately.

Supply and laying un re-inforced precast concrete cable cover, class HV, type-I, flat size 300 mm x 180 mm x 50 mm in trenches over and across the cable complete all as specified and as directed.

Material and labour for 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 11 KV UG aluminium conductor armoured XLPE cable of size 50 to 95 sqmm 3 core complete all as specified and as directed.

Material and labour for cable jointing kit for 11 KV (earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core 11 KV UG aluminium conductor armoured XLPE cable of size 50 to 95 sqmm 3 core complete all as specified and as directed.

Material and labour for cable jointing kit for 11 KV grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core 11 KV UG aluminium conductor armoured XLPE cable of size 70 to 95 sqmm 3 core complete all as specified and as directed.

Supply, lay and testing cable XLPE Insulated screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 95 sq mm 3.5 core complete all as specified and as directed. Note : Necessary earthwork, cable protection items shall be measured & paid separately.