REPAIR/ MAINT OF TRANSFORMER, VCB, PANEL AND VOLTAGE STABILIZER INCLUDING ALLIED ITEMS AT ALWAYE UNDER GE(NS) KOCHI

Maintenance, complete overhauling and callibration of 11 KV,3 phase, 630 Amps - 400 Amps, VCB including disassembling of operating mechanism parts, well cleaning with petrol & CRC-226 including reassembling, panel board, main bus bar, de-carbonizing all joints bus bar, CTs, PTs, spouts metal parts and making VCB perfect operating in manual and electric mode including all routine and preventive maintenance complete and replacing unserviceable parts and components complete, all as specified and directed. Make of VCB:- ABB & Crompton Greeves Note:- Spare parts will be measured and paid seperately as supply only under respective items. The labour charges deemed to be included in the unit rate quoted for this item. Contractor to be provide the spare parts suitable for the existing make.

Supply only holding catch assembly compatible with existing 11 KV VCB, all as specified and directed.

Supply only push button Bracket assembly compatible with existing 11 KV VCB, all as specified and directed.

Supply only charged/discharged indicator assembly compatible with existing 11 KV VCB, all as specified and directed.

Supply only big and small gear assembly compatible with existing 11 KV VCB, all as specified and directed.

Supply only closing spring assembly compatiable with existing 11 KV VCB, all as specified and directed.

Supply only triping spring assembly compatible with KV VCB, all as specified and directed.

Supply only trip shaft assembly with spring and trip strips compatible with existing 11 KV VCB, all as specified and directed.

Supply only close shaft assembly with spring and close strips compatiblewith existing 11 KV VCB, all as specified and directed.

Supply only TNC switch compatiblewith existing 11 KV VCB, all as specified and directed.

Supply only trip catch assembly with all linkage compatible with existing 11 KV VCB, all as specified and directed.

Supply only over current/Earth fault relay Numerical 3 Pole,OC/EF Protection Relay complete for 11 KV VCB, all as specified and directed. Model:- ADR 131A Make:- ASHIDA, aux. 24-230 VAC/DC, CT:1A/5A

Supply only trip Coil 110 V, DC compatible with existing 11 KV VCB, all as specified and directed.

Supply only control fuses rating 3A to 8Amp HRC type complete for 11 KV VCB, all as specified and directed.

Supply only indication lamps comparising CB ON, CB OFF, Spring charge, trip cuircuit indicators etc.Capacity 3 V DC complete for 11 KV VCB, all as specified and directed. Note:- Colour code as per existing (R,Y,B,G,W) Make: Siemens/ Kaycee/L&T

Supply only isolating Contact assembly upto 800 Amp compatible with existing 11 KV VCB, all as specified and directed.

Supply only CT unit 100/50/5A, 15 VA 50 Hz suitable for existing 11 KV VCB Make : L&T, Schenider, CG, Kirloskar & ABB

Supply only master trip relay for 11 KV VCB complete, all as specified and directed.

Supply only auxilary relay compatible with existing 11 KV VCB complete, all as specified and directed.

FRLS copper cable 0.75 sqmm 4 core complete, all as specified and directed.

FRLS copper cable 0.75 sqmm 8 core complete, all as specified and directed.

Supply only Ferrules 0 to 9 suitable for 11 KV VCB complete all as specified

Supply only Ferrules A to Z suitable for 11 KV VCB complete all as specified

Supply only digital volt meter suitable for existing 11 KV VCB complete all as specified and directed

Supply only digital Ammeteer suitable for existing 11 KV VCB complete all as specified and directed

Supply only Spring charging motor compatible with existing 11 KV VCB/outdoor breaker switch all asspecified and directed. Make : GEC / Crompton

Supply and fix demand control relay suitable for 415 volt three phase complete all as specified and directed

S&F in replacement of batteries(cell) of 12 volts of capacity 100 AH suitable for battery bank including initial Dry battery complete as per specification including necessary cell connectors, nuts, bolts and washers etc and copper control cable for DC supply complete, all as specified & directed.

Supply, filling and top up with new Transformer Oil of dielectric strength more than 50 KV at 2.5mm gap confirming to IS : 335-1993 complete all as specified and as directed. Make : APAR Oils / Savita

Dehydration of transformer oil by using filtration plant of suitable capacity and removing the moisture / dust till obtaining the oil dielectric strength 45 KV at 2.5mm gap and above for various transformer / voltage stabilizer of any size located at different substations, complete all as specified & directed.

Disconnecting electrical connections, removing of defective transformer, loading and transporting (up and down) to workshop from site and vice versa including disconnecting and rewinding of 11/0.433 KV 100 KVA to 400 KVA, 3 Phase, 4 wire, 50 Hz vector group DYn 11 transformer with paper insulated copper winding wire as per original data on HV (delta connection) and LV(star connection) 7 tapping brought on HV side for tap charger to change (±) 2.5%, 5%, 7.5% by means of manually operated off load tap changing gear complete rewinding of HV on three limbs providing insulation material like spares, wooden blocks, cotton tape etc and reconditioning three limbs complete ovening, replacement of cock sheet packing, vent diafram replacement of LT terminal plate, breather, filling of new transformer oil for top up with existing oil after proper filtration upto level of 45 KV at 2.5mm gap dielectric strength and testing of transformer at factory and site after connecting electrical connection in full load, complete all as specified & directed. Notes : 1. Spares and copper winding wire for coil required will be measured and paid separately under appropriate item as "Supply only'. 2. The quoted rate shall deemed to include shifting and transporting of transformer, electrical connection, testing and commissioning of transformer afterr repair.

Rewinding of HT/LT coil conforming to the original size of winding wire of the transformer of any make / any capacity with supper enamel copper winding wire/strip of appropriate gauge and turns including allied materials all as specified.

Supply only Gasket suitable for 100 to 400 KVA transformer complete all as specified and as directed.

Supply and replacement LT bush with rod of brass complete cork waher with nuts bolts and washers of brass of suitable size for 100 to 400 KVA Transformer.

Supply and replacement HT bush with rod of brass complete cork waher with nuts bolts and washers of brass of suitable size for 100 to 400 KVA Transformer.

Supply only of only Silica Gel icluding breather container suitable for breather of 100 to 400 KVA distribution transformer complete all as specified and as directed.

Supply and laying inreplacement of HT insulation mat suitable for 11 KV power house with size of 2X1 mtr.

M& L for Spray painting of complete transformer with one coat of weather proof gray synthetic enamel paint after cleaning / removing dust, rust , existing paint and carbon etc including writing MES / SM No as directed by the Engr-in-Charge of transformer 100 to 250 KVA complete.

S& F inreplacement of XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured electric power cable (heavy duty), with aluminium conductor, 1100 volts grade cross sectional area 185 sqmm 3 core complete including removal of u/s cable all as specified and as directed. Make : Havells/Glostar/Polycab/Nicco Note:- Excavation, sand coushioning and bricks protections shall be measured and paid separately under relevent items.

S& F in replacement of XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured electric power cable (heavy duty), with aluminium conductor, 1100 volts grade cross sectional area 240 sqmm 3 core complete including removal of u/s cable all as specified and as directed. Make : Havells/Glostar/Polycab/Nicco Note:- Excavation, sand coushioning and bricks protections shall be measured and paid separately under relevent items.

Material & Labour for earthing with galvanised steel earth plate electrode of size 60cmx60cmx6mm 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 1.5m below normal ground level, connected to the galvanised earth lead by means of bolts, nuts check nuts and washers of galvanised iron wire of size 4 mm dia as earthing lead as shown in electrical plate No. 3 of SSR Part-I connected to earthing test point all as specified or indicated including testing on completion including necessary excavation and earth work in soft/loose soil, returning filling, disposal of surplus soil, earth pit in PCC 1:3:6 type C-1 using 20mm graded stone aggregate pit, funnel, 20mm dia GI medium grade watering pipe, 40mm dia GI medium grade earth lead protection pipe and pre-cast earth pit cover made of RCC (1:1.5:3) type A1 duly reinforced with 8mm dia TMT bar @150 c/c both ways, one lifting handle made of 10mm dia TMT bar embedded in cover slab and cover, wire, copper lugs etc mesh, chorcoal and common salt in alternate layer of 15cm thick complete all as specified and directed.

M & L steel tubular swaged pole 11 metre long complete with 6mm cast iron base plate finial taper plug ,bolts, nuts and secrew all as specified type 410, SP-55 (11.0 metres long) includuing painting up to 1.5 M above PCC coping in black and white strips 5 Nos each 30 CM high staring from bottom of pole and two coats of epoxy based paint alumimium grade finish to remaining external surface over one coat of suitable primer complete all as specified and as directed. Note: excavation and foundation concrete will be measuredand piad for sepearetly.

M&L 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 XLPE armoured Aluminium conductor cable of size 240 Sqmm

M&L 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 XLPE armoured Aluminium conductor cable of size 185 Sqmm

M&L 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 XLPE armoured Aluminium conductor cable of size 240 Sqmm

M&L 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 XLPE armoured Aluminium conductor cable of size 185 Sqmm

Supply and fixing in replacement of straight through cable jointing kit suitable for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Aluminium conductor cable of size120 to 185 Sqmm

supply and fixing in replacement of straight through cable jointing kit suitable for 11 KV ( Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Aluminium conductor cable of size 240 Sqmm

Exc in trenches not exc. 1.5 m wide and not exc. 1.5 in depth and getting out in soft soil for taking up or laying of cable/errecting of pole /stay complete all as specified and directed

Returning filling in including spreading levelling watering and well ramming in layers not exc. 25 cm thick each complete all as specified and directed

Removing excavated material to a distance not exc. 50 mtr and depositing where directed at a level not exc. 1.5 mtr above the starting point of any type of soil complete all as specified and directed

Supply and laying Sand cushioning for the purpose of floors and laying of cables including watering and consiolidation.

Supplying and laying reinforced precast concrete cable cover, class HVP, type 1 with peak, size size 300 mm x 180mm x 40mm in trenches flat complete all as specified and directed.

Triple pole, mechanically operated, mounted on insulator and steel frame, with operating mechanism worked from ground level, for current rating upto 400 amps complete all as specified and directed Note : suitable T&P deemed in quoted rate and no extra cost paid for providing suitable T&P.

M& Labour for servicing of GOD switch by scraping of contact point for removal of dust carbon and rust by means of suitable T&P and greasing all movable parts and making proper functioning complete all as directed. Note : suitable T&P and greese deemed in quoted rate and no extra cost paid for providing suitable T&P.

Material and Labour for PCC 1:2:4 type B-2 using 40 mm graded crushed stone aggregate all as specified and directed.

Material and Labour for PCC 1:2:4 type B-1 using 10 mm graded crushed stone aggregate copping of pole all as specified and directed.