Annual Maintenance And Routine Maintenance Of Electro Mechanical Equipments Installed At Lower Jehlum Hydro Electric Project-Generator , Excitation System , Excitation Transformer 600Kva, 11Kv / 255V ( Uet ) : , Current Collection System ( Brush Type / Slip Rings ) : , Battery Bank & Charger , Brake, Jack & Hp Lubrication , Guide Bearing ( Combined & Upper Bearings And Allied Coolers I.E. Tgb Cooler, Lgb / Thrust Cooler & Hot Air Coolers ) : , Electrical Protection Panel / Cabinet , Bus Duct , Generator Transformer , Switchgear & Stations ( 132Kv & 33Kv Ljhp S / Y, 33Kv Peernia R / S With 11Kv Line ) : , Mst, Sst, Avr & Uat ( Mst ( 20 Mva, 132Kv / 33Kv At Switchyard ) , Sst ( 1600 Kva, 33Kv / 440V At Outside Store Premises ) , Avr ( 630 Kva, 415 Volt At Outside Store Premises ) , Uat Of Every Unit ( 250 Kva, 11Kv / 415V Inside Power House ) & Step Up Transformer 500 Kva 415V / 11Kv For Spare Transformer At Outside Store Premises ) : , Ac & Dc Board ( Lt Panels ) : , Dg Set ( 250Kva / 125Kva, 415Volt , Penstock , Turbine & Under Water Parts , Governor & Allied Opu With Servomotors , Miv & Allied Opu With Servomotors , Hp & Lp Air Compressors , Cooling System , 150 / 25 Ton Eot Crane , Drainage & Dewatering System , Dt Gates , Penstock Gates , Forebay & Spillway , Barrage & Power Canal, Fire-Fighting System , Part 2 Rmcgenerator ( 39Mva, 50C / S, 0.9Pf, 11Kv, 214.3Rpm, Semi-Umbrella Type ) : , Excitation System , 30 B. Excitation Transformer 600Kva, 11Kv / 255V ( Uet ) : General Upkeepment And Regular Maintenance As Per Oem Guidelines. 31 C. Current Collection System ( Brush Type / Slip Rings ) : Checking For Any Sparking In The Slip Rings And Replacement Of Defective / Worn Out Carbon Brushes. Regular Maintenance As Per Oem Guidelines. 32 Battery Bank & Charger: General Upkeepment Of Battery Room And Allied Chargers. Cleaning Of Battery Terminals And Battery Charger Terminals. Checking And Maintaining Specific Gravity Of The Battery Bank Within The Range Of 1.200 To 1.280. 33 Brake, Jack & Hp Lubrication:Checking The System For Any Oil / Air Leakage And Keeping The System Ready For Any Time Operation. 34 Guide Bearing ( Combined & Upper Bearings And Allied Coolers I.E. Tgb Cooler, Lgb / Thrust Cooler & Hot Air Coolers ) :Checking / Repair The Joints Of Cooling Pipeline For Any Leakage. Changing Of Gaskets / Cooler Damages And Cleaning Of Coolers Whenever Required. 35 Electrical Protection Panel / Cabinet: General Upkeepment And Maintaining The Protection System In Healthy Conditions Throughout The Year. 36 Bus Duct: Visual Inspection And General Upkeepment For Smooth Operation. 37 Generator Transformer ( 14 Mva, 11Kv / 132Kv ) :Regular Maintenance And Testing As Per Oem Guidelines. Cleaning Of Coolers Whenever Required. Removal Of Bird Droppings When Machine Is Under Shutdown. 38 Switchgear & Stations ( 132Kv & 33Kv Ljhp S / Y, 33Kv Peernia R / S With 11Kv Line ) : General Inspection And Rectification Of Any Abnormality Within The System. Regular Checking Of Temperatures Of Both Oil & Winding In Transformers. Visual Inspection Of Sf6 Breakers, Isolators And Check For Loose Connections On Isolators, Jumpers, Etc And Repairs There After Whenever Required. 39 10. Mst, Sst, Avr & Uat ( Mst ( 20 Mva, 132Kv / 33Kv At Switchyard ) , Sst ( 1600 Kva, 33Kv / 440V At Outside Store Premises ) , Avr ( 630 Kva, 415 Volt At Outside Store Premises ) , Uat Of Every Unit ( 250 Kva, 11Kv / 415V Inside Power House ) & Step Up Transformer 500 Kva 415V / 11Kv For Spare Transformer At Outside Store Premises ) : Regular Maintenance As Per Oem Guidelines 40 Ac & Dc Board ( Lt Panels ) : Cleaning Of Panels Inside & Outside, Removal Of Dust. Tightening Of All Internal Control Wiring Joints, Power Circuit Joints And Jumper Connections. Checking Of Earthing Connections, Door Locks And Hinges. Checking Of Inter Locking Circuits & Relays. General Inspection And Cleaning Of The System / Replacing Of The Items For Smooth Operation Of Lt Panels. Maintenance Of Lighting / Illumination System Of Switchyard, Forebay, Store And Barrage. Maintenance Of Lt Room At Switch Yard. 41 Dg Set ( 250Kva / 125Kva, 415Volt ) : General Upkeepment And Regular Maintenance As Per Oem Guidelines 42 Penstock ( Dia=4.5M ) : Visual Inspection For Any Leakages. Tightening Of Bolts At Expansion Joints And Saddle Rockers Of Penstock. Greasing Of Expansion Joints And Rockers For Free Movement Of Rock Ling Parts. Cleaning Of Penstock Saddle And Upper Tubes With Vim And Cotton ( To Be Done Quarterly ) 43 Turbine & Under Water Parts: Checking Of Any Abnormal Behavior Of The System And Any Leakages. 44 Governor & Allied Opu With Servomotors: General Upkeepment Of The System Maintaining The Optimum Oil Level In The Sump. Checking And Necessary Maintenance For Any Oil / Air Leakages. Cleaning Of Governor Oil Filters. Replacement Of Servomotor Seals, Whenever Required. Assuring Proper Functioning Of Oil Leakage Collector And Necessary Maintenance To Be Done Whenever Required. Regular Maintenance Of Allied Electrical Connections. 45 Miv & Allied Opu With Servomotors: General Upkeepment Of The System Maintaining The Optimum Oil Level In The Sump. Checking And Necessary Maintenance For Any Oil / Air Leakages. Replacement Of Miv Servomotor Seals, Whenever Required. Regular Maintenance Of Allied Electrical Connections. 46 Hp & Lp Air Compressors: Checking For Any Air Leakage Within The System And Necessary Maintenance Thereof. Regular Maintenance As Per Oem Guidelines. 47 Cooling System: Cleaning Of Strainer Baskets And Repair / Replacement Of Damaged Baskets, If Required. Maintaining The Required Water Flow And Pressure For Smooth Operation Of The Power House. Checking And Arresting The Water Leakage Within The Complete Cooling System. 48 150 / 25 Ton Eot Crane: Cleaning And Removal Of Dirt, Bird Droppings And Other Foreign Materials. Keeping The Crane In Ready And Healthy Condition For Any Time Operation Thought The Year. 49 Drainage & Dewatering System: Day To Day Maintenance Of All Pumps, Motors Installed In Dewatering Stations, Etc. Including Proper Greasing, Replacement Ofbearings, Seals, Gland Packing, Checking Of Electrical Connections, Tightening Of Nuts & Bolts Etc. Required For Satisfactory Operation Of The System. 50 Dt Gates, Penstock Gates, Forebay Gates, Spillway Gates, Escape Gates, Flap Gates, Hr Gates ( Barrage ) : Lubrication Of Gate Rollers, Plumber Blocks, Rope Drums, Pulleys Etc. Quarterly. Checking / Repairs Of Gear Boxes, Steel Wire Ropes For Smooth Operation Of The System. Day To Day Maintenance Of All Motors, Gear Boxes, Etc Present In System Including Proper Greasing, Replacement Ofbearings, Seals, Checking Of Electrical Connections, Tightening Of Nuts & Bolts Etc. Required For Satisfactory Operation. Repairs Of Damaged Motors, Starters, Timers, Contactors, Mcbs Etc, If Required. 51 Fire-Fighting System At Ljhp Power House: General Upkeepment And Regular Maintenance As Per Oem Guidelines. 52 Forebay & Barrage: Regular Clearing Of Trash From Trash Guards From Hr Gates And Forebay Gates. General Upkeepment For Smooth Operation Of The System. 53 Misellaneous: A ) Day To Day Maintenance Of All Pumps, Motors Installed In Various Systems Of Power House, Head Works, Forebay, Dewatering Stations, Etc Including Proper Greasing, Replacement Ofbearings, Seals, Gland Packing, Checking Of Electrical Connections, Tightening Of Nuts & Bolts Etc. Required For Satisfactory Operation Of The System. B ) Checking Of Trash Guards, Gear Boxes, Steel Ropes Of Suspended Gates, Etc., Repairing If Necessary.C ) All Control Panels Including Checking Of Operation Of Relays & Contactors Etc. D ) All Pipe Joints For Any Leaks, Changing Of Gaskets, Tightening Of Nuts & Bolts Etc. E ) Checking Of Functionality Of All Pressure Gauges, Meters, And Temperature Recorders Including Cleaning. F ) Cleaning Of All Control & Relay Panel And Including Checking Of All Electrical Connections & Proper Tightening Etc. Trouble Shooting Of The System, If Required. G ) All Auxiliary & Ancillary Equipment As Per Manufacturer’S Guidelines. H ) Removal Of Day To Day Garbage And General Upkeepmentof Power House And Barrage.I ) Repair / Replacement Of Conductor, Clamps, Spring, Limit Switches, Charging Coil, Tripping Coil, Fuses, Indicators, Meters, Etc. If Required.J ) Rewinding Of 15Hp, 20Hp, 25Hp, 50Hp, 75 Hp Etc Motors If Any Of These Found Damaged During The Rmc Period. K ) Complete Cleaning Of Power House Floors, Walls, Control Room, Service Bay, Cable Trench, Dewatering Trenches, Disc Valve Surface Floor Etc.
