Routine Periodical Maintenance including Breakdown Maintenance of Various 220/132kV and 132/33kV Grid Sub Stations and EHV Transmission Lines of TLMD-8 Srinagar falling in District Srinagar, Ganderbal Pulwama and Anantnag.

Amount

220/132/33 kV Grid Station

Power Transformer :-Checking of auto starting of fans/ pumps, hand operation of all taps, including handle interlock switch, local and remote operation of accessories, WTI/OTI indications. Inspection and testing of transformer including drying/ replacement of silica gel,checking of buchhloz relay,surge relay,conservator oil level indicator, temp. sensors, topping of oil, cooling system, alarm / trip circuit. Measurement of IR Values, dielectric strength of transformer oil and BDV of oil, checking of marshalling box of OLTC, reactor, NGR, T.B of PDR, Bucholz relay, surge relay. External cleaning of radiators, bushings etc.

20 MVA to 50 MVA & above

Supply of Silica Gel

Supply and Installation of Aircell Balloon for Transformers

Circuit Breaker

SF6 Breaker :-Checking of autostarting of air compressor,pressure drop during duty cycle,hydraulic pump operation,gas levels.Cleaning of breaker units,checking of protection equipments and replacement of defective ones,I,e.complete inspection and testing of SF6 type circuit breakers inclusive of operating mechanism.Topping of gas levels if required.

33 Kv VCB

Current Transformer:-Checking /cleanliness and tightness of all electrical connections including earthing of marshalling box ,CT secondary terminal ,space heater and illumination ,healthness of secondary terminal bushing .Checking of oil level .Measurement of IR Value and tightning of jumpers and filling of nitrogen gas.

Providing & Fixing of Tripping Coils

Providing & Fixing of 33kV Spring charging motor

C.V. T./ P.T's :-Checking of earthing of HF point, breakage or cracks in HF bushing ,neutral earthing in CVT ,healthiness of all gaskets and oil level .Cleaning of CVT capacitor stacks, marshalling box and junction box ,space heater and illumination .Measurement of IR value and tightening of all connections and droppers ,filling of nitrogen gas etc.

Surge Arrestor:-Checking of leakage current after cleaning of ,procelain surface,cleaning of L.A insulators.Measurement of IR value and tightening of droppers and testing of counter by surge monitor and meters test.

220 Kv Bay

Isolators:-Maintenance of linkages including transmission gears,stopper bolts.Cleaning of auxillary switch contacts and greasing with silica grease, cleaning of support insulators ,termination contacts,checking of electrical /Mechnical interlocks with E/S & CB,mounting bolts,alignment ,nuts,pins, space heater and illumination ,healthness of gaskets, auxillary contacts ,alingment of earthing blades, operation of earth switch, aluminum /copper flexible conductor, earth connections of structures and MB .Lubrication of operating mechanism, hinges,lock joints, levers, bearings ,main contacts,cleaning of post insulators,tightning of clamps etc. Incl Motarized mechanism

132 Kv (80% of 220kV)

33 Kv (50% of 132kV)

Replacement of damaged Post Insulators (PI to be provided by Department

Bus Bar:-Checking / tightening of clamps/ jumpers/ droppers.Replacement of damaged/ burnt dropers or jumpers.Checking / repairing of bus bar conductors, replacement of Disc insulators if needed (Material to be supplied by Department)

Replacement of damaged burntout droppers or jumpers (Emegency work)

Replacement of damaged Disc Insulators

Column and Beams:-Tightening of all Nuts/Bolts and providing of missing nuts/bolts and damaged members

220 kV Bay

132 kV Bay

33 kV Bay

Illumination System:-Checking of healthiness of fittings in Station buildings,out door switch yard, repairing & tightening of terminals.

Battery Bank:-Checking and cleaning of battery cell terminals, application of petrolum gelly,if required,conducting of battery impedance test and discharge test checking voltage,temperature,current ,sp.gravity of individual cells as well as terminal voltage.

Battery charger.:-Checking of control cards, measurement of test point voltage values, testing of D.C earth fault and U/V relays, I.R.measurement of charger transformer checking of earthing etc.Checking of charger pannel /D.C .D.B for electrical connections, cleaniless etc.

Protection System:-Checking of relays and application of CCL4 for cleaning, carrying out relay testing replacement of worn out defunct relays,testing of event logger/disturbance recorder if any, checking and replacement of control wiring if required.

220/132kV Grid Sub Station

132/33kV Grid Sub Station

L.T.Switchgear/Auxilary Transformer:-Checking of all connections, tightining ,and replacement of wiring of required,testing of BDV oil of aux.transformer,I.R measurement .Functional checks ( Trip/ Close) and operating time measurement of MCB's checking of all motors for normal functioning with cleaning and replacement of worn out wiring etc

Earthing Mat:-Measurement of earth resistivity ,checking of electrical continuity of equipment earthings, tightening of earthing connectors, removal of rust from botled earth connectors and tightening (220/132/33 KV yards) incl. strengthening of E.mat by way of insertion of 3 meter long 40mm dia round iron spikes if needed. (Material to be supplied by Department)

220kV Switch Yard

132kV Switch Yard

33kV Switch Yard

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

Upkeep of Yard lights which include replacement of flood lights/MCBs/Cables etc

Upkeep of Control Room by way of Painting, replacement of broken window panes, providing of curtains and periodical cleaning arrangement of Hall and water supply system including making of Sweeping arrangements.

Renovation of attached washroom of the Control Room incl. replacement of blocked sewage & water pipes

PVC penalling of Conference Hall incl. fixing of locking beading at top and bottom.

Maintenance of Split Type AC units of Control Room incl. service.

Providing and replacement of LED Bulbs 9W, Holders & damaged wire in the Grid Sub Station/Divisional /Sub Divisional offices / Stores

Deweeding of peripheral areas of all Grid Stations and Div Stores

Repairs of fitting pipes, joints, repairing of geasers, replacement of ozing water taps.

DG Set manitannace, changning of M Oil, Filters, change of pipes hosing etc

Cleaning of Cable Trenches Septic Tanks, water tanks at various Grid Stations inluding removing and refixing of Trench Covers

Replacement/filling of iron buckets for dosing of flame, providing of stands at various Grid Stations

Providing and printing of Log Books for various Grid Stations

Earth filling of Divisional Stores to avoid water stagnation incl carriage and levelling

Refilling of Fire extinguishers (Co2 & Dry Chemical Powder Gas Providing of Nosals etc

220kV & 132kV D/C Transmission Lines

Checking and Tightening of Jumpers .

Replacement of Burnt/Damaged Jumpers (material to be supplied by the Deptt.)

Replacement of damaged Disc Insulator (material to be supplied by the Deptt.)

Tension String for 220kV & 132kV

Suspension String for 220kV & 132kV

Repairing of Power Conductor when lowering of conductor is necessary.Complete job including laying of condcutor, making of compression joint, if any, rough sagging,tensioning of conductor,fixing dead-end assembly. Per conductor tension to tension.(one conductor per span)

Repairing of earth wire when lowering of Earthwire is necessary (Complete job) including compression joint if required.Laying of earthwire,tensioning,dead-end asembly etc.upto span length 500 meter tension to tension point.

Tightening of Nuts and Bolts of Tower Superstructures Replacement of missing members Upto 4.0Tonnes

Tower weight more than 4 tonnes upto 7.5 tonnes.

Tower weight more than 7.5 tonnes

Fixining of Missing Members of various Towers including Fabrication,drilling and carriage of all materials from Divisional stores to various sites( material will be issued from Divisional Stores)

Checking/ Tightening of Tower footing earthing Bolts and Measuring Tower footing resistance.

Branch cutting for a Corridor width of 27 meter for 132 kV D/C Trans. Line

Branch cutting for a Corridor width of 35 meter for 220kV D/C Trans. Line

Felling of trees in the Corridor

Providing of Rain Coats for Line Patrolling Staff.

Hiring of Private Vehicle for Emergencies including all charges

EMERGENT/BREAK DOWN WORKS

Dismantelling of Tower Superstructure incl. its Manual/Mechanical carriages upto Divisional Store and Stacking thereof.

Erection of Tower Super Structure incl. Manual/Mechanical carriages from available Source

Erection of ERS incl Transportation from Pampore Stores, manual carriage upto site, providing of backstays , shifting of conductor after fixing of extra conductor, insulators & hardwares. Dismantelling of conductor, De-erection of ERS, return carriage to loading site, loading & transportation upto Pampore stores (Complete Job).

De-stringing of ACSR conductor 0.2/0.4 incl. Discs, Fittings etc and its shifting to Divisional Stores incl. Manual/Mechanical carriages (Complete Job)

Stringing of ACSR Conductor alongwith fixing of Disc Insulators, Hardware fittings incl. Manual/Mechanical carriages (Complete Job)

Supply of PG Clamps

0.4 ACSR Conductor

0.2 ACSR Conductor

M/S Q POWER

M/S YASEEN ELECTRONICS