REPAIR AND MAINT OF TRANSFORMERS AND ALLIED WORKS UNDER AGE E and M MH OF GE SATWARI

Amount

Handling, transportation of unserviceable transformer 11 /0.433 KV of capacity 50 KVA to 250 KVA. of any make, model & type including disconnection all electric cable, earth lead, clamps and channels etc & taking down from pole (4 pole structure/2 pole mounted) or plinth mounted by any means of mechanically operated pulley/ mechanical crane, transportation to MES store Yard / workshop and factory for repair/maint with & including transporting back of transformer to existing places to MES store yard or other existing substation after repair & hoisting / lifting and placing in position and securing properly on pole mounted/plinth mounted including connecting all cable, earth lead, clamps and channels etc as per site requirement and testing after installation complete all as directed by Engineer-in-Charge. Notes :-(i) Please note that If any damage to transformer/OH line/cables occur during handling, transportation or during hoisting/lifting, the same will be rectified by the contractor without any extra cost to the department. .......Contd to srl item No-1.01.....

(ii) Transportation to workshop and back to site /and required T&P like crane etc are to be arranged by contractor and rate for which is deemed to be included in the item. (iii) Standby transformer of same capacity will also be provided by the contractor and rate for which is deemed to be included in the item.

Description same as per srl item No 01 above but of capacity 300 KVA to 630 KVA.

Opening the top cover of transformer step down 11 KV to 0.440 KV, of capacity 50 KVA to 250 KVA of any make, model & type out door/ indoor type, draining out oil in clean barrels, dismantling of cover & taking out the defectiv/burnt out HT/LT coils cleaning the tank and getting out the dust particles & replacing old defective coils with new coils, refitting the top cover and other accessories such as providing sundry items & reassembling after repairs to the entire satisfaction of the Engr-in-Charge and heat treatment connecting of all the electrical connections and other accessories and making the transformer absolutely leak proof, pouring oil in the transformer making all electrical connections testing after repair complete all as specified. Notes:- (i) If retrieved transformer oil's di-electric strength is very less, then it will be replaced with new one .as directed by Engineer Incharge and same will be measured & paid under relevent item. ......Contd to item No-3.01.....

(ii) If any items like winding of HT coil, reconditioning of LT coil, spares like breather, silica jel to be replaced for smooth functioning of transformer shall be measured in relevent items. (iii) Any minor item like nut, bolt are included in this item rate.

Description same as per srl item No 03 above but transformer of capacity exceeding 300 KVA and n.exc 500 KVA

Winding of HT coils of transformers with super enamelled copper winding wire of appropriate gauge along with allied insulating material of capacity 50KVA to 630KVA complete all as specified & directed by Engr-in-Charge.

Winding of LT coils of transformer with cotton braided copper wire /strip of appropriate size along with allied insulating materials of capacity 50KVA to 630KVA of transformers complete all as specified and directed by Engr-in-Charge.

Taking out LV coils from its position for reconditioning by replacing worn out insulation including supplying and providing new insulation, making the LV coils to its original shape and fixing to its position after insulation, testing and commissioning complete all as specified and directed by Engr-in-Charge.

Taking out existing worn out bush rod with accessories & replacement of HT bushes (11 KVA) with rod assembly complete of metallic alloy (brass gun metal) of suitable dia & length including nuts, washers, insulator, packing oil sealing bushes for transformer of capacity 50 KVA to 500 KVA, complete all as specified and directed by Engr-in-Charge.

Taking out existing worn out bush rod with accessories & replacement of LT bush (440 volt) with rod assembly complete of metallic alloy (brass gun metal) of suitable dia & length including nuts, washers, packing oil sealing bushes suitable for transformer of capacity 50 KVA to 500 KVA, complete all as specified and directed by Engr-in-Charge.

Cork sheet gasket (for top cover) of transformers of various capacities including taking out existing perished gasket, complete all as directed by Engr-in-Charge.

Filtration, heating & dehydration of old transformer oil for increasing dielectric strength not less than 45 KV, if the results below 45 KV, the oil shall be replaced with new oil, complete all as directed by Engr-in-Charge. Notes :- New oil required for toping oil levels or for replacement maint shall be measured and paid separately.

Supply, heating and filling new transformer oil in transformers for toping up levels or for replacement of unfit oil (New oil shall be confirming to IS-335) dielectric strength not less than 65 KV, complete all as directed by Engr-in-Charge.

Silica gel assembly complete with silica gel in transformer breather of various capacities i.e. 50 KVA to 500 KVA including taking out existing unserviceable, complete all as directed by Engr-in-Charge.

Taking out existing unserviceable temp gauge & Supply and fixing commissioning and testing of dial type temperature gauge 110mm dia temperature range 0-100 degree C with thermostat built in switch, complete all as directed by Engr-in-Charge.

Taking out unserviceable tap changing gear of transformer including supply and fixing, making connection testing and commissioning new tap changing gear of transformer of any description and make complete all as specified and as directed by Engr-in-Charge.

Painting to steel and iron surfaces of transformer indoor/outdoor type of any description by preparation of old painted surfaces with two coat of synthetic enamelled grey paint with spray gun painting process capacity of transformer 63 KVA to 250 KVA and writing SM/MES No. with white paint, complete all as directed by Engr-in-Charge.

Painting to steel and iron surfaces of transformer indoor/outdoor type of any description by preparation of old painted surfaces with two coat of synthetic enamelled grey paint with spray gun painting process capacity of transformer 300 KVA to 500 KVA and writing SM/MES No. with white paint, complete all as directed by Engr-in-Charge.

Cleaning , scraping out old rubbed paint / rust & Painting of Servo Voltage Stabiliser complete of any capacity outdoor / Indoor type with one coat of spray painting with synthetic enamelled gray paint (first grade) by spray painting & Marking SM No. on surface of stabiliser, complete all as specified and directed.

Painting of steel tubular/ rail pole with cross arms, clamp of any length and shape for HT overhead line with single coat of aluminium paint including preparation of the existing surface including marking pole numbers in a 20 cm dia black circle with white colour numbering with synthetic enamelled paint from bottom of pole to 90 cm height, complete all as specified and directed.

Painting of HT 2-Pole structure with cross arms, clamp of any length and shape for HT overhead line with single coat of aluminium paint including preparation of the existing surface including marking pole numbers in a 20 cm dia black circle with white colour numbering with synthetic enamelled paint from bottom of pole to 90 cm height, complete all as specified and directed.

Painting of HT 4-Pole structure with cross arms, clamp of any length and shape for HT overhead line with single coat of aluminium paint including preparation of the existing surface including marking pole numbers in a 20 cm dia black circle with white colour numbering with synthetic enamelled paint from bottom of pole to 90 cm height, complete all as specified and directed.

Prepration of old painted surfaces steel/iron of structure of any description in 33/11 KV MRS for 33KV incomer line complete (one incomming 4 pole structure with cross arms and 1 way 33 KV line structure with 33 KV post busbar structure to complete 11KV isolator with fuse post structure) with two coat of aluminium paint including preparation of the existing surface complete all as specified and directed

Cleaning prepration of old painted surfaces of transformer of 3.15 MVA 33/11 KV with spray paint single coat of existing colour, complete all as specified and directed

Cleaning of bushing and terminal of HT potential transformer 33000 / 11000 volts (outdoor type) by CTC liquid and checking of oil level and oil dielectric strength (BD test) and proper connection checking and testing with following :- (i) Meggar testing between phase to phase & phase to earth (ii)Output voltage checking

Cleaning & Servicing of HT 33 KV control panel indoor type, checking of each moving parts, spring, charging system, closing & trip coil assembly and proper oiling, greasing and proper adjustment of trip bars, closing bar complete with the following testing :- (i) ON/OFF testing in local and remote position. (ii) Spring charge system testing shall be carried out. (iii) Tripping test in over and earth fault position by external current injecting Kit on Primary&Secondary side. (iv) Meggar testing between phase to phase and phase to earth in ON / OFF position both

Cleaning of bushing and terminal by CTC solution of Current Transformer (CT) rating 100 / 5 + 5 + 1 Amp rating, 33 KV and checking of oil level and oil strength (BD voltage test) and proper connection checking and testing with following :- (i) Meggar testing between phase to phase & phase to earth

Cleaning of HT insulators D.O. Fuse & checking the incoming & outgoing joint connection and testing with the following :- (i) Meggar testing between phase to phase & phase to earth.

Prepration of old painted surfaces steel/iron of structure of any description in 33 KV MRS for 33KV incomer line complete (one incomming 4 pole structure with cross arms and 33 KV post busbar structure to complete 11KV isolator with fuse post structure) with two coat of aluminium paint including preparation of the existing surface, complete all as specified and directed

Cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primer coat, one under coat and one finishing coat of paint, complete all as specified and directed

HT side M.S cable termination box for transformer fabricated out of 3mm thick CRCA sheet including one coat of synthetic paint over a coat of red oxide primer for 100 KVA to 500 KVA transformer with necessary nuts and bolts including disconnection of HT cables and reconnect the same after fixing the box, complete all as specified and directed

LT side cable end box for transformer fabricated out of 3mm thick CRCA sheet including one coat of synthetic paint over a coat of red oxide primer for 100 KVA to 500 KVA transformer with necessary nuts and bolts inclding disconnection of LTcables and reconnect the same after fixing the box, complete all as specified and directed

Painting of 33/11 KV guard (XPM) fencing, chanels, post etc mounted on plinth with one coat of silver aluminium paint including preparation of the existing surface, complete all as specified and directed

Shifting of transformer of any capacity from 2 pole structure / PCC foundation / sub station after disconnecting HT / LT connections, earthing leads etc and reinstallation the same at new location upto a distance of 8 Km, complete all as specified and directed

Supply, laying, testing and commissioning cable XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable 1100 Volts grade with standard aluminium conductor of size 150 sqmm 3.5 core, complete all as specified and directed

Supply & fixing cable jointing kit 11 KV (earthed) grade for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured cable of size95 sqmm, complete all as specified and directed

Supply, laying & testing HT cable XLPE insulated, screened PVC bedded, galvanized steel strip or wire armoured electric power cables (heavy duty) with aluminum conductor, 11000 volts grade cross sectional area of size 95 SQMM 3 core, complete all as specified and directed

Excavation in trenches n.exc 1.5 m wide and n.exc 1.5 m in depth for laying of pipes etc not exc 10 Sqm on plan and not exc 1.5m in depth and getting out in soft loose soil, complete all as specified and directed

Returning filling in, trenches including spreading, levelling, watering and well ramming in layers not exc 25 cm thick in any type of soil, complete all as specified and directed

Removing excavated surplus materials to a distance n.exc 50 m and depositing where directed at a level n.exc 1.5 m above the starting point, complete all as specified and directed

Supply and spreading sand Dry cushioning to cable providing with a layer of sand 8cm deep before laying the cable and 15cm deep after laying and stretching the cable in trenches complete all as specified and as directed by the Engineer-in-Charge.

Supply and laying sub class `B` bricks laid dry flat transversely along the length of cable with width equal to the length of bricks over sand cushioning as protection cover of cable laid.

Supply and fix cable jointing kit for 11 KV 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 95 Sqmm including taking down old joint, complete all as specified and directed

Earth continuty conductor or main earthing lead fixed to wall on batten or recess or cheses or buried in groung or drawn in conduit/ pipe or fixed to pole or any other indicated situation for looping earthing etc. as required by 32 X 6 mm GI strip, complete all as specified and directed

Test point terminal block made of gun metal or phosphorus bronze size 75 X 75 X 25 mm drilled and screwed including 3 Nos 8 mm dia 25 mm long hexagoanl head screw, complete all as specified and directed

Earthing complete with galvanised steel earth plate electrode 600 x 600 x 6mm thick, burried directly in ground (earth pit not less than 2.25m deep below ground level) with top edge of the plate not less than 1.5m below normal ground level, connected ot galvanised iron strip of size 32 x 6 mm earth lead by means of bolt, nuts, washers of galvanised iron or steel, earth strip protected by and including GI pipe 40mm dia bore (light grade) and connected to main test point as directed including concrete pit in PCC (1:3:6) type C-1, precast RCC (1:1½:3) type A-1 cover slab of size 54 x 54 x 5 cm reinforced with 8mm dia TMT bars @ 150 mm C/C both ways with one handle for lifting, made out of 8mm dia TMT bar embedded in precast cover slab, funnel, wire mesh, 20mm bore GI pipe (medium grade) for watering, charcoal and salt in alternate layers, including necessary excavation and earth work in any type of soil complete all as shown on electrical plate No 5 of SSR Part-I and testing complete all as specified and as directed.

BMMJ TRADERS AND ENGINEERS

DARVESH ENGINEERING WORKS

M/S ASHOK KUMAR SURI

R K BUILDERS

M G ASSOCIATES

bamral builder