PROVN OF SEPARATE UG POWER CABLE AND TRANSFORMER FROM NEAREST 33 KVA KESCO SUB STATION AT JAJMAU TO 7 AFH KANPUR

Amount

(d) Potential Transformer draw out type (Top mounted only) shall be provided in incoming Panel separately with 3 Phase having following particulars :- (i) Ratio - 11KV/1.732, 110V/1.732 (ii) Vector group - Star/star (iii) Accuracy class - 0.5 (iv) VA Burden - 50 VA/phase (v) Protection of HV & LV - HRC fuse of suitable capacity Note :- PT should be 3 Phase , 5 Limb or 3 single phase with star connection made to form 3 phase . (e) CT shall be resin-cast and shall be free from absorption of moisture and be connected at outgoing side ,shall be provided with 3(three) nos dual core dual ratio current transformer having following particulars :- (i) Ratio - 200-100/5-5A (ii) No of core - Two (for metering and protection) (iii) Accuracy class 5P 15 for protection core and 0.5 for metering core . (iv) VA Burden - 15VA for protection core and 10VA for metering core. (v) Short time - 18.4 KA for 1 second (f)Self powered microprocessor based electronic relay comprising of three over current , one earth fault protection relay with high set for both phase & earth and with fault memory, universal auxliary supply. Make CGI 14N (g) Trip circuit supervision relay (h) Master trip relay .

(B) Compact Air Insulated bus bar trunking system with copper busbar 630Amps, 50KA breaking capacity, IP54 protection for VCB to be coupled with existing VCB panel - 02 No (C) Bus coupler Vacuum Circuit Breaker 630A, HT, 11KV three phase, AC supply, 350MVA ,18.4KA breaking capacity, short circuit ratings 1 second, complete:- with out any protection and metering-01No Note : Both the buscoupler should be electrical and mechanical interlocked so as to avoid turning on of both VCBs simultaneously

VCB PANEL SHOULD COMPRISE OF THE FOLLOWING FEATURES :- (a) Push buttons for accepting faults and reset. (b) LED indicating lamps for (duly control wired up) (i) Auto strip (ii) Spring charge (iii) Fault Alarm (iv) Trip Circuit Healthy (v) Trip circuit Unhealthy (vi) Breaker ON (vii) Breaker OFF (c) RS 485 communication (d) Motor operated spring stored energy trip for closing and opening of the breaker. (e) Manual charging / operating arrangement. (f) HRC fuses for metering and protection system (g) One No. internal bus earthing with flat GI strip of size 50x 6mm (h) one No. of space heater with thermostat (i) One No. of inside lamp with door switch ( 40W 230V) (j) One No. of plug point with switch( 5A, 230V) (k) Copper bus bar common for out going feeders with PVC 11KV heat shrink insulation sleeves (l) Complete control panel wiring with copper wire of size not less than 2.5 sqmm (m) Civil design for foundation should be done all as per instructions manual of manufacturer.

(d) Potential Transformer draw out type (Top mounted only) shall be provided in incoming Panel separately with 3 Phase having following particulars :- (i) Ratio - 11KV/1.732, 110V/1.732 (ii) Vector group - Star/star (iii) Accuracy class - 0.5 (iv) VA Burden - 50 VA/phase (v) Protection of HV & LV - HRC fuse of suitable capacity Note :- PT shoud be 3 Phase , 5 Limb or 3 single phase with star connection made to form 3 phase . (e) CT shall be resin-cast and shall be free from absorption of moisture and be connected at outgoing side ,shall be provided with 3(three) nos dual core dual ratio current transformer having following particulars :- (i) Ratio - 200-100/5-5A (ii) No of core - Two (for metering and protection) (iii) Accuracy class 5P 15 for protection core and 0.5 for metering core . (iv) VA Burden - 15VA for protection core and 10VA for metering core. (v) Short time - 18.4 KA for 1 second (f)Self powered microprocessor based electronic relay comprising of three over current , one earth fault protection relay with high set for both phase & earth and with fault memory, universal auxliary supply. Make CGI 14N (g) Trip circuit supervision relay (h) Master trip relay .

VCB PANEL SHOULD COMPRISE OF THE FOLLOWING FEATURES :- (a) Push buttons for accepting faults and reset. (b) LED indicating lamps for (duly control wired up) (i) Auto strip (ii) Spring charge (iii) Fault Alarm (iv) Trip Circuit Healthy (v) Trip circuit Unhealthy (vi) Breaker ON (vii) Breaker OFF (c) RS 485 communication (d) Motor operated spring stored energy trip for closing and opening of the breaker. (e) Manual charging / operating arrangement. (f) HRC fuses for metering and protection system (g) One No. internal bus earthing with flat GI strip of size 50x 6mm (h) one No. of space heater with thermostat (i) One No. of inside lamp with switch ( 40W 230V) (j) One No. of plug point with switch( 5A, 230V) (k) Copper bus bar common for out going feeders with PVC 11KV heat shrink insulation sleeves (l) Complete control panel wiring with copper wire of size not less than 2.5 sqmm (m) Civil work for foundation should be done by contractor all as per instructions manual of manufacturer.

Note for item No 01 & 02 :- (a) The VCB shall be tested for High Voltage test, Primary Injection test & Secondary Injection test individually at site after erection before commissioning and the same is deemed to be to included in the quoted rate. (b) VCB shall be drawout type and their should be provision of extendable. (c) Whole scheme shall be as per schematic line diagram arranged by the contractor from manufacture and shall be approved by the GE before executed. (d) Unit rate shall include the cost of danger notice board, 11KV grade 25 cm CRCA ISI Marked, 11 KV grade, chequreed type rubber mat 1 meter width and length equivalent to the width of the panel, Two sets of operating and maintenence manual, spares list, periodical mainenance chart / manual, lay out of panel / wiring shall be included in the rate quoted, (e) Cost of any civil work required to install the panels shall be deemed to be included in the rate of panel. (f) VCB to be coupled with existing VCB with addition alteration including bus bar existing size. Rate for which is deemed to be included in the unit rate.

Supply, installation, testing and commissioning of constant current, constant voltage (CCCV) battery charging (Float cum boost) unit to charge 24 to 30 volts DC battery bank having 02 Nos 12 volts 200 AH dry type maintenance free batteries (Make-Exide) with batteries with connecting lead, SRC controlled and consisting of double wound transformer (provided with best quality CRGO laminations for high efficiency), an SRC/diode bridge, smoothing chock, capacitors and electronic circuits for controlling the voltage and current housed in a power coated sheathed steel cabinet not less than 2.0mm thick suitable for 50x50x5mm thick angle iron frame and 45cm height standing legs for fixing and fitted with a digital voltmeter & ammeter. The charge should have indications for mains supply, mode of charging (float or boost), polarity batter reverse & over load conditions. It shall have protection for over load, short circuit, reverse polarity & surge/transient. The charger have to alarm on fuse blowing & short circuit. All protections to charger & its meters shall be provided with suitable rating MCB only including 08 line DC distribution board, copper busbar with threating ends, MCB & fuse for protection and protection back plate should be made of isolated material (MCB incoming 01 No & outgoing - 08). The output voltage regulation have to be better than 1% and load regulation better than 2%. The other technical specifications shall be as under :-

(a) Input working voltage - 180 - 270 volts. (b) Nominal input voltage - 240 volts AC, 50 Hz, single phase. (c) On load input power - > 80 (d) On load unit watt efficiencies - > 80% (e) No load losses of complete charger - < 10% (f) Ripple contents on load (rms) - 1% to 5% (g) Over load - 110% for 30 minutes and should give visual indication for over load condition. (h) Boost charging - 2.4 volts/cell (j) Float charging - 2.5 volts/cell (k) Float cum boost charging - Automatically changes from one state to another state as per battery condition and should give visual indication for either float or boost based on charging mode. (l) Reverse polarity - No damage should be caused. A visual indication should appear with an audio alarm.

M&L for wiring by qualified & experienced electrician of battery charger to all connected 11KV VCB with 2.5 sqmm multi strand flexible copper conductor and shall be properly bunched, tied, ferruled for proper indication and crimped with adequate size/types of lugs including testing complete all as specified and directed. Note:- Each VCB should be provided with separate circuit from battery charger.

Excavation in trenches in soft/loose soil not exc. 1.5 meter wide and not exc. 1.5 mtr depth and getting out, including trimming the sides and forming bottom surface to required levels for laying of cables complete all as specified and directed.

Returning filling in including spreading, leveling, watering and well ramming in layers not exceeding 25 CM complete all as specified and directed.

Removing excavated material not exceeding 50mtr and depositing where directed at a level not exceeding 1.5 Mtr above the starting point complete.

M&L for sand cushioning (dry sand) to under ground cable for cable 8 cm below cable and 15 cm above cable including punning down to 10 cm by mechanical roller complete protection all as specified and directed. (Note : Punned thickness of sand shall be measured and paid to contractor).

Supply and laying unreinforced precast concrete cable cover, class HVP, type 2 with peak size 300 mm x 180 mm x 40 mm thick suitable for 11 KV cable complete all as specified and directed.

Supply, laying in trenches/ fixed with surface of wall / roof etc, jointing, thembling and glanding in suitable size , testing of HT XLPE cable insulated, screened, PVC bedded galvanised steel strip or wire armoured electric power cable (heavy duty) with alumunium conductor 11 KV, grade cross section area 240 Sqmm of 3 core complete all as specified and directed. Note : Excavation, earth work, cable cover, sand cushioning etc shall be measured and paid separately under respective items)

S&F galvanised steel tubing 100mm bore light grade (ISI marked) for protection of under ground cable on poles/ walls including suitable size of iron clamps with nuts, bolts & washers under road crossing etc complete all as specified and directed.

M&L for cutting of PCC/Hard standing/WBM road not exceeding 20 cm in width not exceeding 90 cm in depth for passing of LT cable and making good of disturbed surface to match with the existing surfaces by using old and new material i.e bitumen/ PCC (1:3:6) type C-1 complete all as specified and directed .

S&F HT PCC cable route indicator of size 175mm x 150mm thick, 75 cm long and upper front side each indicator shall be embracing 4mm deep with words "HT CABLE" and two coats of synthetic enamel yellow and red paint along HT cable trenches at interval of 50 Mtr and corner & on any turning, road crossing etc including planting in ground with PCC (1:3:6) type C-1 complete all as specified and directed.

S&F cable jointing kit for 11KV (Earthed) grade cable for indoor termination, heat shrink type, joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 240 to 300 Sqmm complete all as specified and directed.

S&F cable jointing kit for 11 KV (earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 240 sqmm to 400 sqmm complete all as specified and directed.

Supply and installation of 11KV pilfer resistance metering cubical panel complete with MRI equipment and accuracy class (CT) 0.2s0.2, rated burden 2.5VA to 50VA and primary voltage upto 33KV, secondary voltage 110V as per latest IS complete all as specified and directed.

Supply and installation of 33KV, single phase outdoor, oil filled & hermetically sealed CT of ratio 400/5-5Amp, class 1.0/5P10, burden 15VA complete all as specified and directed. Note:- CT/PT should be suitable for upright mounting on steel structure in outdoor switch yard.

Supply and installation of 33KV, single phase outdoor, oil cooled PT of ratio 33KV/rt3/110 V/rt3/110V/rt3, Class 0.5-3, burden 50VA - 50VA complete all as specified and directed. Note:- CT/PT should be suitable for upright mounting on steel structure in outdoor switch yard.

S&F Danger notice plate of 1.6mm thick mild steel sheet vitreous enamelled white with letters figures and conventional skull and bones in signal red colour and fixed with MS clamps bolts and nuts of approved size for HT 25cmX20cm complete all as specified and directed.

Supply, laying & testing PVC insulated, PVC sheathed cable galvanised steel strip or wire armoured, electric control cables (Heavy duty) with stranded copper conductor of size 1.5 Sqmm 4 core complete all as specified and directed.

Supply, laying & testing PVC insulated, PVC sheathed cable galvanised steel strip or wire armoured, electric control cables (Heavy duty) with stranded copper conductor of size 1.5 Sqmm 8 core complete all as specified and directed.

M&L earthing with galvanised cast iron earth plate of size 600 x 600 x 6 mm thick burred directly in ground not less than 2.25 Mtr below normal ground level, earth plate packed on all side with charcoal mixed wih salt to a thickness of 150 MM connected by GI earth strip of size 32 x 6mm thick soldered and rivetted to earth plate. GI earth strip will be protected by using 50 mm bore light grade GI pipe earth plate to steel tubular pole including flat iron clamp 25 x 3 mm including bolts nut and washers complete including watering GI pipe 20 mm dia light grade 2.5 Mtr long the earthing include PCC pit including necessary earth work and disposal of surplus soil to a distance not less than 50 Mtrs, chamber of PCC (1:4:8) type D 2 using 40 MM graded stone aggregate, coping shall be PCC(1:3:6) type C1 using 20 MM graded stone aggregate, RCC pit cover 50 MM thick (1:2:4) type B1 using 20 MM graded stone aggregate, reinforced with 8 MM MS bar at 80 MM C/C both way in lieu of CI pit cover and angle iron frame including flame funnel, wire mess, GI earth wire, 8 SWG under the earth and on the pole upto height of 1.5 Mtr shall be protected by 15 MM dia GI pipe (Light grade) GI pipe to be fixed with pole by means of 2 Nos flat iron clamp 25 x 3 MM size complete with bolts with nuts washers etc complete all as specified and shown in Electrical plate No 3 of MES SSR part -I 2009. (NOTE: 1. GI earth strip upto & including 7.5RM from the earth test point shall be deemed included in quoted unit rate. 2. GI earth strip beyond 7.5RM shall be measured and paid separately under respective items).

S&F GI strip 32 x 6 mm earth strip inside hanger, fixing with proper clamp, saddles, nut bolts , washers etc properly and connected to equipment or panel complete all as specified and directed.