SPECIAL REAPIR FOR COMPREHENSIVE E / M MAINT OF 33 KV SUBSTATION AT BAIRAGARH UNDER GE BHOPAL

Amount

Taking down old unserviceable HT 33 KV VCB 350 MVA along with the existing accessories incl CT & PT and removing the same from site & deposited to AGE E/M Yard and making good the disturbed surfaces of wall / floor etc complete , all as specified and directed .

Supply, install, testing and commisioning in repair of Outdoor type HT 33 KV 3 phase 50 cycles totally enclosed metal clad SF6 circuit breaker switchgear Outdoor type having Rupturing capacity 350 MVA overload and earth fault protection, Outdoor type CTs & PTs, ammeter, Voltmeter and of rating upto 630 Amps including indoor type Control panel and relay and digital meter as comprising of following items of (a) to (q) (all as specified and directed by the Engr-in Charge). Location :- Existing 33 KV MRS Bairagarh Mil Stn.

(a) SF6 breaker with 3 Nos single pressure puffer type interrupters with supporting porcelain, of rating 33KV, 3 Phase 50 Hz, 350 MVA, 630 Amps mounted on common base housing, comprising a pnuematic operating mechanism and a compressor and motor, air reservoir and a horizontal rod assembly complete with all accessories reqd for smooth operation of breaker along with mannual closing and tripping push buttons, emergency trip push bottons mechanical indication for circuit breaker close / open, mechanical operation counter,auxiliary switch, breaker service/test position indicator complete all as specifed.

(b) Microprocessor based numeric relay consisting of two over current and one earth fault relay - 01 No. including master trip relay - 01 No.

(d) Oil cooled single phase outdoor type current transformer 33 KV dual ratio 200-100/5/5 Amps, 15 VA burden class I, accuracy for metering and 15 VA/5p-10 for protection -03 Nos.

(e) Potential transformer oil cooled type outdoor type, 50 VA burden, ration 33KV/110 V with HT and LT fuse - 03 Nos.

(f) Set of indicating lamps LED type for emergency tripping, braker on/off, breaker services position, trip circuit/Healthy with push button-01 set.

(g) Copper conductor control cables of solid single core 4 sqmm for CT wiring and 2.5 sqmm for other control wiring.

(h) Alarm system, common alarm with reset system to be provided on panel board for circuit breaker trip, DC auxilliary supply failure and AC auxiliary supply failure 230V.

(j) 2 core 10 sqmm copper conductor armoured cable 1100 volts from battery bank to SF6 panel board.

(k) Electrical closing coil 30 volt DC operation-01 set.

(I) Electrical shunt trip coil 30 volt DC operation - 01 set.

(m) Local control switch with locking arrangement-01 set.

(n) Structural steel frame work including PCC foundation and earth work as per manufacturer specifications.

(o) An indoor control panel incorporating all the controls as per OEM specifications including necessary control cable from the breaker to the panel 01 No. Make :- SF6 CB:- ABB, Areva T&D, Schneider, CG CT &PT:- Pragathi, ABB, Kappa Battery :- Exide or equivalent make as approved by GE.

(p) Battery charger with maintenance free type Battery bank for auxiliary supply, having battery bank 32 volts 100AH consisting of 16 Nos, 2 volts tubular cells, maintenance free Dry type Battery inter connected in series with suitable size of copper strips alongwith MS racks and connection with suitable rating of Automatic float cum boost battery charger of rating 230 volts AC input, protection for input and output, incoming and outgoing supply connection with 10 Sqmm copper conductor unarmoured cable from LT panel to charger for 230volts AC supply and battery charger to SF6 Indoor panel.

(q) Any other accessories required as per the specifications of OEM.

Addition /alteration such as to PCC foundation, angle iron frame, welding, providing holes and making good of disturbed flooring, wall etc complete all as specified and directed.

Supply and providing rubber insulation mat one side checked of size 2 x 1 mtr and 25 mm thick suitable for 33 KV, ISI mark.

Supply and fixing gang operated air brake switch double break rotating type, double stack type triple pole mechanically operated mounted on HT insulators(09 insulators type - 03 insulator in each pole) and MS galvanised steel frame with operating mechanision worked from ground level including operating rod for current rating upto 200 Amps 33000 volts complete with locking arrangement and, MS clamps, bolt and washers of required size to suit the load at site including two coats of aluminium paint over a coat of red oxide primer on MS work complete all as specified. Make:-Jaipuriya Brother / Areva / Atlas / Pactile (Metro)

Supply and replace for 33 KV Drop out fuse assembly, double stack channel type , triple pole mounted on porcelain HT insulator 6 Nos and MS galvanised steel frame rating upto 200 Amp, 33000 Volt complete with DO fuze and electrical connections, jumpering by ACSR conductor and connectors complete all as specified and directed. Make : Jaipuriya Brothers / Areva / Atlas / Pactile (Metro)

M&L for earthing complete with copper earth plate 60cmx60cmx3.15 mm thick burried directly in ground (earth pit not less than 2.25 mtrs deep below ground level) with top edge of the plate not less than 1.5 meters below normal ground level connected to galvanized iron earth strip 20X3mm by means of bolts nuts check-nuts and washers of galvanized iron or steel as shown in electrical plate No 3 of MES schedule Part-I connecting to earthing test point and testing on completion with including 15mm bore light grade GI protection pipe, RCC 1:2:4 type B1 20mm thick cover reinforced with 6mm thick dia MS bars 3 Nos both ways with lifting hook made out of 6mm dia MS bar, watering arrangement with funnel and wire mesh and 20mm bore light grade GI watering pipe, earthing lead from earth plate to eqipment to point (up to 7.5M long) common salt and charcoal filling, necessary excavation and earth work complete all as specified and directed.

Supply & fixing for copper strip 20 x 3mm on wall / batten or recessed or buried in ground complete all as specified and directed.

S&F for providing aluminium conductor steel reinforced for busbar 33 KV MRS including stringing properly on insulators and binding with aluminium binding wire suitable size lugs fitted with nuts & bolts complete all as specified of sizes Dog/Wolf. Make:- Indian Aluminium Co / Bharat Conductor / ICC

Taking down unserviceable LA and S&F lightening arrestor non linear metal oxide type having voltage rating 33 KV, rated frequency -50 HZ, Norminal Discharge current 65 KA (Heavy duty) complete with all fittings, transmission class suitable for 33 KV, 3 Phase earthed distribution system complete all as specified and directed. (Note: Each set comprising of three LA) Make:- BHEL / Areva T&D / Oblum

Supply, install, testing and commisioning in repair of Outdoor type Current Transformer 33 KV, single phase, oil cooled type CT of ratio 200/100 - 5/5 Amp, class 1.0 / 5P10, burden 15 VA complete all as specified and directed. Make : Pragati /Automatic /Jyoti

Supply, install, testing and commisioning in repair of Outdoor type 33 KV, single phase, oil cooled type Potential Transformer 50 VA burden, ration 33KV/110 V with HT and LT fuse -03 Nos Make : Pragati /Automatic /Jyoti

S&F in replacement Galvanised steel wire 4 mm dia on pole for continuous earth wire.

S&F in replacement Cradle guard hexagonal / rectangular, fabricated with galvanised steel wire 3.15 mm dia.

Supply, fabricating , fixing structural mild steel channel, angle iron,flat iron and brackets, etc for fabrications of cross arms, bracings, supports, D-clamps, stiffeners,eye hooks, bolts,pole clamps and back plates including nuts, bolts and washers, welding banding cold , or hot drilling holes for insulators bolts in any shape or size as indicated or directed and inclusive of one red oxide primer coat ,one under coat and one finishing coat of aluminium paint complete all as specified and directed.

M&L for plain cement concrete 1:4:8 type D-2 using 40mm graded stone aggregate in foundtion of PCC for Transformer plateform/ poles/struts as specified including necessary form work all as specified and directed.

M&L for plain cement concrete 1:3:6 type C-2 using 40mm graded stone aggregate in foundtion of plateform of Transformer/stay assembly etc including necessary form work , all as specified and directed.

M&L for plain cement concrete 1:2:4 type B-1 using 20mm graded stone aggregate for coping around poles / transformer plateform top surface , including necessary form work finishing even and smooth without using extra cement , all as specified and directed.

M&L for Brickwork with subclass‘B’ bricks, with cement motor 1:6 straight or curved on plan to any radius in half brick thick walls / plateform of Transformer built in as per per site requirement.

M&L for rendering work 10mm thick with cement plaster 1:6 on fair faces of brick work or concrete surfaces

M/S RAKESH TRADERS

Oasis Infosystem Private Limited

M/s SCHOLASTIC ENTERPRISES

Pioneer Enterprises