AMC for various Grids and Lines Under Jurisdiction of TLMD 8

Amount

220/132 KV Grid Station Mirbazar, 132/33 KV Grid Station Wanganpora and 132/33 KV Grid Station Kangan

Power Transformer :-

Checking of Auto starting of fans, External cleaning of radiators, Cleaning of marshalling boxes of transformer/reactor and OLTC, (ii) Tightening of terminations, Checking of OLTC driving mechanism, Electrical checking/ testing of pressure relief device, Buchholz relay, OLTC surge relay/ checking of alarm/ trip and checking of alarm/ trip and checking/ replacement of the gaskets of the terminal box, Checking / Tightning of earthing connections, Checking of earth resistance of Neutral, Replacement of Silca Gel of breathers and oil toping of transformers 50MVA and above including tandelta testing of bushing/ winding & DGA/ BDV testing of transformer oil. checking of oil leakage of the transformer.

Draning/ De-sludging of transformer oil of transformers

Supply of oil, filitration and dehydration of transformer

Reparing of cooling fans of transformers including replacement of damaged winding / wiring, bearing etc.

Lifting of top lid of power transformer for complete physical inspection & replacement of gaskets.

Replacement of damaged core bolts/Earthning strip etc.

Circuit Breaker :- Checking of SF6 gas pressure drop during duty cycle operation check, Checking of auto-starting / stopping of oil pump,pressure switch setting,etc, Checking of healthiness of accumulator by checking the pre-charging pressure when building up pressure from zero, Checking of operation of safety valve, Cleaning of breaker units, checking of protection equipmentsand replacement of defective ones, i.e., complete inspection and testing of SF6 type circuit breakers inclusive of operating mechanism. Maintaning gas levels, venting of circuit breakers, replacement of o-rings , gas kits including circuit breaker anylises by CBA etc.

220KV SF6 Breaker

132KV SF6 Breaker

33KV VCB

Providing and Replacment of tripping coil for both SF6 and Vaccum Circuit breakers as per site requirement

Current Transformers :- Checking of bellow expansion, Checking of oil leakage in terminal box, Checking of primary connection strips, Checking of healthiness of gaskets,Checking the tightness of all connections including earthing of PF terminal, Cleaning of marshalling box and junction box, Checking cleanliness / tightness of all electrical connections including earthing of all marshalling boxes, CT secondary terminal, space heater and illumination, healthiness of secondary terminal bushing, checking of oil level, measurement of IR value tightening of jumpers, CT anylises with the help of CTA etc.

CVT's / PT's :- Visual checking of earthing HF point (in case it is not being used for PLCC,Checking of any breakage or cracks in cementing joint, Cleaning of CVT capacitor stacks and tightness of terminal connections, Checking of space heater and illumination,Checking and tightness of all connections including earth connections Cleaning of marshalling box and junction box, Checking of healthiness of gaskets, Checking of neutral earthing in CVT, healthiness of all gaskets and oil level. Measurement of IR value and tightening of all connections and droppers.

Surge Arrestors :- Checking of leakage current(third harmonic resistive current), Testing of counters and leakage current meters, Cleaning of insulators, Checking of earth connections between surge arrester,surge monitor and earth, Checking of leakage current after cleaning of porcelain surface, cleaning of LA insulators. Measurement of IR value and tightening of droppers and testing of counter and leakage of current meters, Cleaning of insulators, Checking of earth cennections between surge arrester, Surge moniter and Earth.

Isolators :- Maintenance of linkages including transmission gears, stopper bolts. Cleaning of auxiliary switch contacts and greasing with silca grease, cleaning of support insulators, termination contacts, checking of elecctrical / mechanical interlocks with E/S and CB, mounting bolts, alignment, nuts, pins, space heater, illumination, healthiness of gaskets, auxiliary contacts, alignment of earthing blades, operation of earth switch, almunium / copper flexible conductor, earth connections of structures and MB. lubrication of operating mechanism, hinges lock joints, levers, bearings, main contacts, cleaning of post insulators, tightening of clamps.

Reparing of Three phase/single phase motors of isolators including replacement of damaged winding and bearing.

Post Insulators :- Checking of insulators for cracks and cleaning of insulators.

Gantry Columns and Beams :- Tightening of all nuts / bolts and providing of missing nuts / bolts and damaged members

DROPERS/JUMPERS/Clamps :- Replacement of damaged / burnt droppers or jumpers or Clamps of isolators/ breakers/transformers /CT/PT etc. 220/132/33kV Yard including providing of bolts etc for jumpers

Illumination System :- Checking of healthiness of fittings in station buildings, outdoor switch yard, repairing and replacement if required, lighting of panels. Tightening of terminals etc.

Battery Bank: Checking and cleaning of battery cell terminals, application of petroleum gelly, if required, conduction of battery impendence test and discharge test checking voltage temperature, current, sp. Gravity of individual cells as well as terminals voltage, battery dischrge testing etc.

Battery Charger :- Checking of control cards, measurement of test point voltage values, testing of DC earthfault and U/V relays, IR measurement of charger transformer, checking of earthing etc. Checking of charger panel / DCDB for electrical connections, cleanliness etc.

Protection System :- Checking of relays and application of CCl4 for cleaning, replacement of worn out / defunct relays, checking and replacement of control wiring, if required, primary & secondery injection testing and other necessary test etc.

L.T. Transformer :- Testing of oil BDV, IR measurement, Testing /checking of OTI,WTI and Buchholz (if provided, Checking of healthiness of Pressure relief diaphragm, Checking healthiness of Buchholz relay, Checking tightness of earthing connections L.T Pannel: Cleaning of panels,bus bar insulators etc. Relays Testing, Tightning of all electrical connections,Checking of indicating meters ,Check for change-over facility, if provided,Check operation /indications in OFF Load condition of MCCB,

Earthing Mat :- Measurment of earth resistivity, checking of electrical continuity of equipment earthings, tightening of earthing connectors, removal of rust from bolted earth connectors and tightening. 220/132kV

DC Distribution Board :- Checking of connections, wiring, replacement of wiring if needed and checking of healthiness of all D/C lights.

125/63kV DG set: Checking of DG set incl battery ,charger , MCCB's overloading, filling of M-OIL and replacement of same, change of filters if required, grazing and tightening of Nuts and bolts and electrical connections at all Grid Sub Staions.

Fire Protection System:- Refilling of fire fighting CO2 and dry chemical powder gas cylinders, providing of Nosels etc.

Upkeep of Control rooms ( 3 No.) including painting , repairing of damaged ceiling if any etc and replacement of sofa covers inside the cabin

Repairing and maintenance of AC system including repai of necessary items for their proper functioning including checking of stabilizers and necessary service at Grid Sub Stations Wanganpora and Kangan

Repairing and maintenance of Hot and Cold AC system including repair of necessary items for their proper functioning including checking of stabilizers and necessary service at Grid Sub Stations Mirbazar

Providing and fixing of LED Bulbs / conceal lights 9W in the Grid Sub Stations

Deweeding of peripheral areas of all Grid Stations and Div Stores including removal of thorny bushes , wild vegetation etc

Sweeper arrangement of Control Room Buildings (3 Nos) entire building Disintefects, Cleaning clothes .(Rate per Month).

Plumbing work, repairing, fitting pipes, joints, repairing of exaust fans and geysers etc .(Rate per Grid Station).

Cleaning of trenches (septic/Cable trenches) Water Tanks at various Grid Stations.(Rate to be quoted per Grid Station).

Colouring of Yard fencing including repair of damaged fencing if any in all 3 grid stations

Filling of sand buckets with sand for fire extinguishing system at 4 no Grid Stations.

Providing and printing of Log Books for various Grid Stations(rate per log book)

Maintainance of road lights , gate lights at grid stations including replacment of damaged lights and wires ( rate to be quoted per grid)

General inspection, cleaning, tightening of electrical connections of C &R pannels, D C /AC Distrbution pannels etc

Renovation of Washrooms including setting rights of Tiles, pipes and accessories at all Grid Stations (Rate to be quoted/washroom)

Painting of outdoor equipments (Transformers, MK's, CT/PT/CVT, Circuit breaker, isolatores, poles etc.

Maintainance of lawns/ beautification and landscaping for 3 No grid stations ( rate to be quited per grid)

Maintainance of Grid Station Gate for all 3 Grid Stations including painting, changing of bearing , wheels etc and lubrication of moving parts including repair of gate pillars as per requirement ( Rate per Grid)

Providing /fixing of Mechanism box of 132 Kv SF6 breaker (ABB Make) complete.

Maintainance of CCTV cameras installed in various Grid Stations ( rate to be quoted per grid)

Payment of Annual Mobile bills and Internet services at 3 No Grid Stations

Providing of fixing of MCCBs 32 amp of reputed make

Providing/ Fixing of 2 V Battery

Providing and Fixing of Sign Boards of various sizes with reflective type lettering

Providing / fixing of clamps / connectors/ botls of various sizes and types as mentioned below:

0.7 - 0.2 T Clamp

0.2 - 0.1 T Clamp

0.7 - 0.7 T Clamp

0.7 - 0.7 T Clamp ( Bimetallic)

0.7 clamp with pad

4” collar - 0.7 clamp for tubular bus

I clamp 0.7-0.7 ( Bimetallic)

0.7 PG Clamp

0.7 Breaker Pad clamp

Transformer Bush Clamp - 0.7 - Pad type ( All copper)

Transformer Bush Clamp - 0.5 - T type ( All copper)

0.5 -0.5 T clamp

0.2 - 0.5 T clamp

0.5 -0.5 T clamp ( Bi metallic)

0.5 clamp with pad

0.5 Breaker Pad clamp

0.7 - 0.5 T Clamp

0.7 - 0.5 L Clamp ( Bi metallic)

PG Clamp - 0.5

PG Clamp 0.2

Bolts of various sizes

Providing and Fixing including testing and commissioning of damaged 33 KV VCB pole CGL make for grid station wanganpora

Rewiring , ferruling and stablisation of different protection system of 53.3 MVA transformers at Grid station Mirbazar including replacement of MCCBs, Contactors, Relays, Led Lights and cabling etc. ( details attached with SBD)

Providing and Fixing including testing and commissioning of damaged 1 pole along with mechanisim box SF6 gas filled 245 KV, 2500 A Areva Make for grod station Mirbazar

Providing and laying of 12 core cable including ferruling and termination.

Providing and laying of 4 core cable including ferruling and termination.

Providing of MK box with change over links for spare transformer at grid station wanganpora.

Providing and fixing of 14 No WTI and 7 No OTI digital meteres to be retro fitted on existing RTCC Pannles along with cabling from individual transformers to rtcc pannel with average cable length of 200m including laying of cables, ferruling , termination etc.

Providing of mercury based 3 No OTI and 4 No. WTI intruments

Providing Printer/copier/scanner of reputed brand for grid stations

Providing of all in one PC of reputed brand with 1 Tb of storage and minimum 8 gb of RAM running on genuine windows 10 version

Providing and fixing of transformer fan contacter ( 2.5 amps) and relay set ( Rate to be quoted per set)

Providing and fixing of damaged Terminal Boxes inside MKs and Pannels

Replacement of damaged TNC Switch by new one for control pannel

Providing of Universal SF6 gas filling kit device

Cleaning and repairing of drinking water tank including painting at grid Station Mirbazar

Providing of Safety Helmets

Providing of Safety Belts

Providing of Insulation Gloves

Providing and fixing of wire mesh for windows and doors of control room building

Providing motorised Almunium ladder (15 feet) of reputed make

Providing and installation of data logger along with PC ( Industrial) for grid Stations

Repair of damaged boundary / fencing wall at Grid Stations

Supply, installation, testing and commissioning of CT incl dismantelling (Approved Make)

Supply, installation, testing and commissioning of PT/ CVT inc dismantelling (Approved Make)

Supply, installation, testing and commissioning of Surge Arrester incl dismantelling (Approved Make)

Supply/ Fixing of moving/fixed contacts of isolators (Approved Make)

Supply, installation, testing and commissioning of Post insulator incl dismantelling (Approved Make)

220KV/132 KV Transmission Lines under the jurisdiction of TLMD-8

Checking and tightening of jumpers

Replacing/Fixing of Damaged Jumpers including all material-( only conductor will be supplied by the department.)

Replacement of damaged disc insulators by way of Supply, installation of insulator string For 220kV Transmission Line

Tension string (comprises of 15 No 120KN Discs) any number of Disc per string

Suspension string (comprising of 15 no 70KN Discs)any number of Disc per string

Replacement of damaged disc insulators by way of Supply, installation of insulator string For 132kV Transmission Line

Tension string (comprises of 11 No 90KN Discs)any number of Disc per string

Suspension string (comprising of 10 no 70KN Discs)any number of Disc per string

Repairing of power conductor when lowering of conductor is necessary. Complete job including laying of conductor, making of compression joint, if any, rough sagging tensioning of conductor and supply,Fixing of all hardware items (complete Job), only conductor will be supplied by the department.

Stringing and saging of ACSR zebra conductor including saiging, tensioning,Fixing of all hardware items (complete Job)only conductor will be supplied by the department.

Stringing and saging of ACSR Panther conductor including saiging, tensioning,Fixing of all hardware items c(complete Job) only conductor will be supplied by the department.

Tightening of nuts and bolts of tower superstructures replacement of missing ones.( Nuts & Bolts with washers will be supplied by the department

a) Tower weight more than 4 tonnes to 7.5 tonnes

b) Tower weight more than 7.5 tonnes

Checking / tightening of tower footing earthing bolts and measuring tower footing resistance.

Branch cutting: In a corridor width of 30 meter for 220KV

Branch cutting: In a corridor width of 26 meter for 132KV

felling of trees in the vicinity of corridor of the line

Fixing of missing tower members to various tower structures with nuts, bolts and washers including sorting, fabrication viz cutting and drilling as per drawings and requirement at site along with carraige (mechanical & Manual) The unfabricated galvanised material along with nuts, bolts and washers shall be provided by the Department.

Replace of burnt/damaged jumpers and tightning of remaning jumpers on the same tower

Repairing of earthwire when lowering of earthwire is necessary (complete job) including compression joint if required. Laying of earthwire, tensioning, dead end assembly etc. tension to tension point.

Reparing damaged conductor by using halikal sleve or Bolted or by shorting methode with out lowering. the conductor including all material only conductor will be supplied by the department.

Fitting of repair slevees comperssion type for over ACSR conductor

Handling of material in Divisional Stores eg. Conductor, tower material including sorting, carriage , loading and unloading for issue to various sites including dragging, loading and unloading

Backfilling /Overburdening Of Towers

Loading of ERS at Divisional stores,Unloading of ERS at site,Errection of ERS (Emergency Restoration System) at site,Dismentalling of ERS at site,Laoding of ERS at site,Unloading of ERS including staking of items of ERS in respective containers at divisional stores

UMAR ELECTRICALS

M/S Q POWER

M/S YASEEN ELECTRONICS

M/S BARKAT ELECTRICALS

M/s B. L. TRADERS

Ess Bee Electricals