Tender For Annual Maintenance Contract For The Electrical, Mechanical And Hydromechanical Equipment Of 3 Mw Meenvallom Hydro Electric Project On Contract Basis- 1 SYNCHRONIZING PANELItem Code : SYNP/M/1Monthly Maintanance 2 General inspection and clearing of dust and blowering of panel Item code: (SYNP/M/1.01) 3 Checking tightening of control cable wiring, terminal blocks and its connections Item code : (SYNP/M/1.02) 4 Checking of MCBs ( fuses) and replacing if necessaryItem code : (SYNP/M/1.03) 5 Checking of 110v dc supply at all pointItem code : (SYNP/M/1.04) 6 Checking of 230v ac aux. supply at all points and door/panel lamps.Item code : (SYNP/M/1.05) 7 Checking of Indication lamps and testing it individually and replacing the faulty lamps and its switches.Item code : (SYNP/M/1.06) 8 Testing and tightning of internal wiring and its connections Item code : (SYNP/M/1.07) 9 Checking and tightning of relay connections Item code : (SYNP/M/1.08) 10 Checking the operation of all selector switchesItem code : (SYNP/M/1.09) 11 Checking the terminatins of all metersItem code : (SYNP/M/1.10) 12 UCB PANEL Item code : UCBP/M/2Monthly Maintanance 13 General inspection and clearing of dust and blowering of panelItem code : (UCBP/M/2.01) 14 Checking tightening of control cable wiring, terminal blocks and its connections Item code : (UCBP/M/2.02) 15 Checking of MCBs ( fuses) and replacing if necessoryItem code : (UCBP/M/2.03) 16 checking of 110v dc supply at all pointItem code : (UCBP/M/2.04) 17 Checking of 230v ac aux. supply at all points and door/panel lamps.Item code : (UCBP/M/2.05) 18 Checking of Indication lamps and testing it individually and replacing the faulty lampsItem code : (UCBP/M/2.06) 19 Testing the turbine OPU Pumping CircuitItem code : (UCBP/M/2.07) 20 Testing the turbine OPU Loading/unloading CircuitItem code : (UCBP/M/2.08) 21 Testing of OPU pump selector switch and its operationItem code : (UCBP/M/2.09) 22 Testing of cooling water remote on/off circuitItem code : (UCBP/M/2.10) 23 Testing of all control switches with its operationItem code : (UCBP/M/2.11) 24 Testing of OPU on/off from UCB panelItem code : (UCBP/M/2.12) 25 Testing of open/close of bypass valve from panel in manual modeItem code : (UCBP/M/2.13) 26 Testing MIV operation from UCB panel in manual mode and its sequence of operationItem code : (UCBP/M/2.14) 27 Testing of Defflector open/close circuit from panel in manual mode and its sequenceItem code : (UCBP/M/2.15) 28 Testing the Operation of nozzle-1 and nozzle-2 from panel in manual modeItem code : (UCBP/M/2.16) 29 Testing the Synchronising in manual mode from UCB panel and its tripping sequenceItem code : (UCBP/M/2.17) 30 Testing the governor and its programmeItem code : (UCBP/M/2.18) 31 Testing the governor cards individuallyItem code : (UCBP/M/2.19) 32 Testing the governor in automode with full operation sequenseItem code : (UCBP/M/2.20) 33 Testing the annunciator with each faultItem code : (UCBP/M/2.21) 34 checking, tightening and replacing of relays connection and connections if necessaryItem code : (UCBP/M/2.22) 35 Checking the operation of all selector switchesItem code : (UCBP/M/2.23) 36 Checking the terminations of all metersItem code : (UCBP/M/2.24) 37 SPHERICAL VALVE CONTROL PANEL Item code : SVCP/M/3Monthly Maintanance 38 General inspection and clearing of dust and blowering of panelItem code : SVCP/M/3.01 39 Checking tightening of control cable wiring, terminal blocks and its connections Item code : SVCP/M/3.02 40 Checking of MCBs ( fuses) and replacing if necessoryItem code : SVCP/M/3.03 41 Checking of 110v dc supply at all pointItem code : SVCP/M/3.04 42 Checking of 230v ac aux. supply at all points and door/panel lamps.Item code : SVCP/M/3.05 43 Checking of Indication lamps and testing it individually and replacing the faulty lamps and its switches.Item code : SVCP/M/3.06 44 Testing the MIV OPU Pumping CircuitItem code : SVCP/M/3.07 45 Testing the MIV OPU Loading/unloading CircuitItem code : SVCP/M/3.08 46 Testing of OPU pump selector switch and its operationItem code : SVCP/M/3.09 47 Testing of all control switch with its operationItem code : SVCP/M/3.10 48 Testing of interlocking and its connectionsItem code : SVCP/M/3.11 49 Testing of open close of MIV valve seals from panelItem code : SVCP/M/3.12 50 Testing MIV operation from UCB panel in manual mode and its sequence of operationItem code : SVCP/M/3.13 51 Replacing the relays contactors, if requiredItem code : SVCP/M/3.14 52 Checking the operation of all selector switchItem code : SVCP/M/3.15 53 AVR PANEL Item code : AVRP/M/4Monthly Maintanance 54 General inspection and clearing of dust and blowering of panelItem code : AVRP/M/4.01 55 Checking tightening of control cable wiring, terminal blocks and its connections Item code : AVRP/M/4.02 56 Checking of MCBs ( fuses) and replacing if necessoryItem code : AVRP/M/4.03 57 checking of 110v dc supply at all pointsItem code : AVRP/M/4.04 58 Checking of 230v ac aux. supply at all pointsItem code : AVRP/M/4.05 59 Checking of Indication lamps and testing it individually and replacing the faulty lampsItem code : AVRP/M/4.06 60 Testing and tightning of internal wiring and its connections Item code : AVRP/M/4.07 61 Checking the operation of all selector switchesItem code : AVRP/M/4.08 62 Checking the terminatins of all metersItem code : AVRP/M/4.09 63 GENERATORItem code : GEN/M/5Monthly Maintanance 64 General inspection, cleaning of Generators including generator fansItem code : GEN/M/5.01 65 Check the tightness of Generator cables in both Line and neutral sideItem code : GEN/M/5.02 66 Check the tightness of connections in excitation systemItem code : GEN/M/5.03 67 General cleaning of the excitation systemItem code : GEN/M/5.04 68 TURBINE OPUItem code : TOPU/M/6( Monthly Maintanance ) 69 General inspection, clearing of dust, blowering and external cleaning of OPU and oil pipe lines Item code : TOPU/M/6.01 70 Checking the low pressure and high pressure switch operations Item code : TOPU/M/6.02 71 Checking the low low pressure and high high pressure switch operations Item code : TOPU/M/6.03 72 Checking of tripping pressure and its operationsItem code : TOPU/M/6.04 73 Chcking of loading pressure switchItem code : TOPU/M/6.05 74 Checking of Unloading pressure switchItem code : TOPU/M/6.06 75 checking of motor rotationItem code : TOPU/M/6.07 76 checking of Accumulator pressureItem code : TOPU/M/6.08 77 Checking of any leakage in the OPU and its pipe lineItem code : TOPU/M/6.09 78 Checking the flow control valveItem code : TOPU/M/6.10 79 Checking of Pressure control valveItem code : TOPU/M/6.11 80 Cleaning of filter if requiredItem code : TOPU/M/6.12 81 Checking of termination of all connectionsItem code : TOPU/M/6.13 82 SPHERICAL VALVE OPU Item code : SVOPU/M/7Monthly Maintanance 83 General inspection, clearing of dust, blowering and external cleaning of OPU and oil pipe lines Item code : SVOPU/M/7.01 84 Checking the low pressure and high pressure switch operations Item code : SVOPU/M/7.02 85 Checking the low low pressure and high high pressure switch operations Item code : SVOPU/M/7.03 86 Checking of tripping pressure and its operationsItem code : SVOPU/M/7.04 87 Checking of loading pressure switchItem code : SVOPU/M/7.05 88 Checking of Unloading pressure switchItem code : SVOPU/M/7.06 89 checking of motor rotationItem code : SVOPU/M/7.07 90 checking of Accumulator pressureItem code : SVOPU/M/7.08 91 Checking of any leakage in the OPU and its pipe lineItem code : SVOPU/M/7.09 92 Checking the flow control valveItem code : SVOPU/M/7.10 93 Checking of Pressure control valveItem code : SVOPU/M/7.11 94 Cleaning of filter if requiredItem code : SVOPU/M/7.12 95 Checking of termination of all connectionsItem code : SVOPU/M/7.13 96 BYPASS VALVE Item code : BPV/M/8Monthly Maintanance 97 Checking of limit switch connectionsItem code : BPV/M/8.01 98 Arresting leakage of bypass valves if anyItem code : BPV/M/8.02 99 Opening and clossing time settingItem code : BPV/M/8.03 100 Setting of limit switch if changed and pressure testingItem code : BPV/M/8.04 101 DEFLECTOR Item code : DEF/M/9( Monthly Maintanance ) 102 Checking of limit switch connectionsItem code : DEF/M/9.01 103 Arresting leakage if anyItem code : DEF/M/9.02 104 Opening and clossing the time settingItem code : DEF/M/9.03 105 Setting of limit switch if changed and pressure testingItem code : DEF/M/9.04 106 Checking length of link rod of deflector 1 and 2Item code : DEF/M/9.05 107 NOZZLE Item code : NOZ/M/10( Monthly Maintanance ) 108 Checking of Transducer and its Zero settingsItem code : NOZ/M/10.01 109 Checking of limit switch connectionsItem code : NOZ/M/10.02 110 Arresting leakage if any for oil and water.Item code : NOZ/M/10.03 111 Setting of limit switch if changed and pressure testingItem code : NOZ/M/10.04 112 Checking and adjusting its open close time setting Item code : NOZ/M/10.05 113 SPHERICAL VALVEItem code : SV/M/11 Monthly Maintanance 114 Checking of limit switch connectionsItem code : SV/M/11.01 115 Arresting leakage if any for oil and water.Item code : SV/M/11.02 116 Setting of limit switch if changed and pressure testingItem code : SV/M/11.03 117 Checking ofoperations of seals and record its moving distance. (Maintenance seal and service seal )Item code : SV/M/11.04 118 Checking and adjesting its open close pressure setting and pressure testing.Item code : SV/M/11.05 119 COOLING WATER SYSTEMItem code : CWS/M/12Monthly maintenance 120 Cleaning of cooling water tubes where ever necessary, cleaning and checking of duplex filter, cleaning of cooling water tanks, checking and rectification if necessary of LPM and pressure reduceres. checking the motors for ensuring for proper workingItem code : CWS/M/12.01 121 UCB PANEL Item code : UCBP/Q/13( QUARTERLY MAINTENANCE ) 122 checking of closing and tripping circuit in test modeItem code : UCBP/Q/13.01 123 Applying Gel in all fuse linkItem code : UCBP/Q/13.02 124 Testing of Status monitorItem code : UCBP/Q/13.03 125 Replacing fuses of cardsinside the governor, if neccessoryItem code : UCBP/Q/13.04 126 Checking the water level sensor and connectionItem code : UCBP/Q/13.05 127 Checking the KW transducer and its circuitsItem code : UCBP/Q/13.06 128 Testing the speed sensor and speed monitorItem code : UCBP/Q/13.07 129 Testing the governor operation in individually from governorItem code : UCBP/Q/13.08 130 Testing the tripping circuit with ,50%,75%,100% and over load by Pressing emergency PBItem code : UCBP/Q/13.09 131 TURBINE OPU Item code : TOPU/Q/14( QUARTERLY MAINTENANCE ) 132 Testing of solenoid valve through manual operationItem code : TOPU/Q/14.01 133 Testing of Pressure switch settingstem code : TOPU/Q/14.02 134 Testing of accumulator pressuretem code : TOPU/Q/14.03 135 Testing of pressure gaugetem code : TOPU/Q/14.04 136 Testing of MOOG valvetem code : TOPU/Q/14.05 137 Testing of Loading/unloading control valve and its settingtem code : TOPU/Q/14.06 138 SPHERICAL VALVE OPU Item code : SVOPU/Q/15( QUARTERLY MAINTENANCE ) 139 Testing of solenoid valve through manual operationItem code : SVOPU/Q/15.01 140 Testing of Pressure switch settingsItem code : SVOPU/Q/15.02 141 Testing of accumulator pressureItem code : SVOPU/Q/15.03 142 Testing of pressure gaugeItem code : SVOPU/Q/15.04 143 Testing of Loading/unloading control valve and its settingItem code : SVOPU/Q/15.05 144 SYNCHRONIZING PANEL Item Code : SYNP/H/16(HALF YEARLY MAINTENANCE ) 145 checking of closing and tripping circuit in test modeItem Code : SYNP/H/16.01 146 Applying Gel in all fuse linkItem Code : SYNP/H/16.02 147 UCB PANEL Item code : UCBP/H/17(HALF YEARLY MAINTENANCE ) 148 Testing the display of governorIItem code : UCBP/H/17.01 149 Checking the supply cards healthiness and its tightnessItem code : UCBP/H/17.02 150 Testing the tripping of turbine with creating all fault in annunciator mentionedIItem code : UCBP/H/17.03 151 Testing governor with water level sensorIItem code : UCBP/H/17.04 152 Testing governor with KW transducerItem code : UCBP/H/17.05 153 SPHERICAL VALVE CONTROL PANEL Item code : SVCP/H/18(HALF YEARLY MAINTENANCE ) 154 checking of closing and closing of maintenance and seal and record its movementsItem code : SVCP/H/18.01 155 Applying Gel in all fuse linkItem code : SVCP/H/18.02 156 Checking the field sensors and its connectionsItem code : SVCP/H/18.03 157 Checking all selector switches and its operationsItem code : SVCP/H/18.04 158 TURBINE OPU Item code : TOPU/H/19(HALF YEARLY MAINTENANCE ) 159 Nitrogen pressure testing in accumulatortem code : TOPU/H/19.01 160 Testing of Nitrogen control valvetem code : TOPU/H/19.02 161 Pressure setting at various pointstem code : TOPU/H/19.03 162 SPERICAL VALVE OPU Item code : SVOPU/H/20(HALF YEARLY MAINTENANCE ) 163 Nitrogen pressure testing in accumulatorItem code : SVOPU/H/20.01 164 Testing of Nitrogen control valveItem code : SVOPU/H/20.02 165 Pressure setting at various pointsItem code : SVOPU/H/20.03 166 BYPASS VALVE Item code : BPV/H/21(HALF YEARLY MAINTENANCE ) 167 Tightening of oil hydraulic connectionItem code : BPV/H/21.01 168 Pressure switch settingItem code : BPV/H/21.02 169 DEFLECTOR Item code : DEF/H/22(HALF YEARLY MAINTENANCE ) 170 Tightening of oil hydraulic connectionItem code : DEF/H/22.01 171 Ensure full clausre of both deflectors.Item code : DEF/H/22.02 172 Greasing the rotaing bush and checking its smoothness of operationItem code : DEF/H/22.03 173 NOZZLE Item code : NOZ/H/23(HALF YEARLY MAINTENANCE ) 174 Tightening of oil hydraulic connectionItem code : NOZ/H/23.01 175 Pressure switch settingItem code : NOZ/H/23.02 176 Greasing the rotaing bush and checking its smoothness of operationItem code : NOZ/H/23.03 177 SPHERICAL VALVEItem code : SV/H/24(HALF YEARLY MAINTENANCE ) 178 Greasing the rotaing bush and checking its smoothness of operationItem code : SV/H/24.01 179 GENERATORItem code : GEN/H/25HALF YEARLY MAINTENANCE 180 Tightening all generator foundation bolts as per torqueItem code : GEN/H/25.01 181 AVR PANEL Item code : AVRP/Y/26( YEARLY MAINTENANCE) 182 Checking of closing and tripping circuit in test modeItem code : AVRP/Y/26.01 183 TURBINE OPU Item code : TOPU/Y/27( YEARLY MAINTENANCE) 184 Filtering of oil of OPU tank. Cleaning of OPU tank and filling with new oil if necessaryItem code : TOPU/Y/27.01 185 Filling of nitrogen if requiredItem code : TOPU/Y/27.02 186 MIV clossing/opening time settingItem code : TOPU/Y/27.03 187 Setting of all pressure switches after dismantling and cleaningItem code : TOPU/Y/27.04 188 Testing and cleaning of MOOG valve if necessaryItem code : TOPU/Y/27.05 189 Changing of main and return line pressure filter dismantling the ptressure switch and cleaning with diesel supplied by dept and resesetting to actual pressure settingsItem code : TOPU/Y/27.06 190 SPHERICAL VALVE OPU Item code : SVOPU/Y/28( YEARLY MAINTENANCE) 191 Filtering of oil of OPU tank. Cleaning of OPU tank and filling with new oil if necessaryItem code : SVOPU/Y/28.01 192 Filling of nytrogen if requiredItem code : SVOPU/Y/28.02 193 Setting of all pressure switches after dismantling and cleaningItem code : SVOPU/Y/28.03 194 Changing of main and return pressure line filters dismantling the ptressure switch and cleaning with diesel supplied by dept and resesetting to actual pressure settingsItem code : SVOPU/Y/28.04 195 BYPASS VALVE Item code : BPV/Y/29( YEARLY MAINTENANCE) 196 Checking of manual valve and hydraulic valves and rectify if found defective.Item code : BPV/Y/29.01 197 Tightening of all joints if necessasryItem code : BPV/Y/29.02 198 DEFLECTORItem code : DEF/Y/30 ( YEARLY MAINTENANCE) 199 Cleaning of cylinder and arrest leakage of oil if necessasry.Item code : DEF/Y/30.01 200 Tightening of all jointsItem code : DEF/Y/30.02 201 Tightening of all internal and external fittings of both defflectorItem code : DEF/Y/30.03 202 NOZZLEItem code : NOZ/Y/31 ( YEARLY MAINTENANCE) 203 Cleaning of cylinder Cleaning of cylinder and arrest leakage of oil if necessasry.Item code : NOZ/Y/31.01 204 Tightening of all jointsItem code : NOZ/Y/31.02 205 Tightening of all internal and external fittings of nozzleItem code : NOZ/Y/31.03 206 RUNNER Item code : RUNNER/Y/32( YEARLY MAINTENANCE) 207 Apply Dye Penitration Test (DPT) to check the cracking/Cavity /pitching in RunnerItem code : RUNNER/Y/32.01 208 SPHERICAL VALVEItem code : SV/Y/33( YEARLY MAINTENANCE) 209 Tightening of all jointsItem code : SV/Y/33.01 210 Tightening of all internal and external fittings of MIVItem code : SV/Y/33.02 211 PIN BUSH COUPLING Item code : PBC/Y/34( YEARLY MAINTENANCE) 212 Inspect the tightness of coupling and its bushings. Check the gap and clearance to be maintained between the coupling and record the values. Change the bushings if necessary.Item code : PBC/Y/34.01 213 INTAKE GATE & STOP LOG GATES,SCOUR GATESItem code : GATES/Y/35( YEARLY MAINTENANCE) 214 Inspect the gates and its rubber seals after lifting.Remove the rubbish and cleaning it. Tighten the nuts and bolts and replace it if necessasy. Greasing of lifting arrangement and chain pulley etc.Item code : GATES/Y/35.01 215 GENERATOR Item code : GEN/Y/36(YEARLY MAINTENANCE) 216 Taking the IR & PI values of the GeneratorsItem code : GEN/Y/36.01 217 Complete cleaning of the Generators. Inside stator and outside of rotors by opening the generator side covers using air drier and clothItem code : GEN/Y/36.02 218 Both end conections of rotor has to be cleaned and tightened properlyItem code : GEN/Y/36.03 219 The healthiness of excitation thyristor Shall be verifiedItem code : GEN/Y/36.04 220 The DC cable shall be Properly monitored for any DC leakageItem code : GEN/Y/36.05 221 The Rortor pole key Throtlessness shall be ascertainedItem code : GEN/Y/36.06 222 Check all space heaters. Rectify if requiredItem code : GEN/Y/36.07 223 BEARINGS Item code : BRGNS/Y/37(YEARLY MAINTENANCE) 224 Inspection, cleaning and oil replacement of turbine and generator bearings. Inspect thrust pads, journal pads for damage if any. Replace pads if necessary. Change gland ropes if required.Item code : BRGNS/Y/37.01 225 EXPANSION JOINTS Item code : EXP/Y/38 (YEARLY MAINTENANCE) 226 Ensure the tightness of expansion joints to avoid leakage. Change bolts if necessary.Item code : EXP/Y/38.01 227 COOLING WATER SYSTEMItem code : CWS/Y/39 (YEARLY MAINTENANCE) 228 cleaning the lines with solvent applicable of complete lines after dismantling and assembling after completion of work. Cleaning the cooling water system inside all bearingsItem code : CWS/Y/39.01 229 11 KV VCB Panel Item code : VCBP/M/1( Monthly Maintanance ) 230 Dust clearing and blowering of panelsItem code : VCBP/M/40.01 231 Checking of control cable wiring and its connection. Checking of terminal blocks and tightening, replacing it if neccessoryItem code : VCBP/M/40.02 232 Checking of MCBs ( fuses) and replacing if necessaryItem code : VCBP/M/40.03 233 Checking of 110v dc supply at all pointsItem code : VCBP/M/40.04 234 Checking of 230v ac aux. supply at all pointsItem code : VCBP/M/40.05 235 Checking of Indication lamps, panel lamps and testing it individually and replacing the faulty lampsItem code : VCBP/M/40.06 236 Testing of internal wiring and its connections Item code : VCBP/M/40.07 237 checking of Trip circuit healthiness in manual mode and remote modeItem code : VCBP/M/40.08 238 checking of all relay connections Item code : VCBP/M/40.09 239 Checking of annunciator healthiness and its operationItem code : VCBP/M/40.10 240 checking of Tripping and VCB closing coil healthinessItem code : VCBP/M/40.11 241 checking the operation of TNC switch and replacing it if neccessoryItem code : VCBP/M/40.12 242 BUS PT Panel Item code : BPTP/M/41( Monthly Maintanance ) 243 Dust clearing and blowering of panelItem code : BPTP/M/41.01 244 Checking of control cable wiring and its connection. Checking of terminal blocks and tightening, replacing it if neccessoryItem code : BPTP/M/41.02 245 Checking of MCBs ( fuses) and replacing if necessoryItem code : BPTP/M/41.03 246 checking of 110v dc supply at all pointsItem code : BPTP/M/41.04 247 checking of 230v ac aux. supply at all points. Checking the panel lamp circut and changing the lamp, switch if nessessoryItem code : BPTP/M/2.05 248 Checking of Indication lamps and testing it individually and replacing the faulty lampsItem code : BPTP/M/41.06 249 Testing of internal wiring and its connections Item code : BPTP/M/41.07 250 Checking of Bus PT fuse holder and tightning itItem code : BPTP/M/41.08 251 checking of all meter connections Item code : BPTP/M/41.09 252 Checking the external termination and its tightness.Item code : BPTP/M/41.10 253 Replacing HT fuse if neccessoryItem code : BPTP/M/41.11 254 CONTROL & RELAY Panel Item code : CRP/M/42( Monthly Maintanance ) 255 Cleaning of dust and blowering of panelItem code : CRP/M/42.01 256 Checking of control cable wiring and its connection. Checking of terminal blocks and tightening, replacing it if necessaryItem code : CRP/M/42.02 257 Checking of MCBs ( fuses) and replacing if necessaryItem code : CRP/M/42..03 258 checking of 110v dc supply at all pointsItem code : CRP/M/42.04 259 checking of 230v ac aux. supply at all points. Checking the panel lamp circut and changing the lamp, switch if necessaryItem code : CRP/M/42.05 260 Checking of Indication lamps and testing it individually and replacing the faulty lampsItem code : CRP/M/42.06 261 Testing of internal wiring and its connections Item code : CRP/M/42.07 262 checking of all meter connections, KWH transducers, Annunciators, Temp. scanners and associated RTDs etc.. Item code : CRP/M/42.08 263 LTAC PANEL Item code : LTP/M/43( Monthly Maintanance ) 264 Dust clearing and blowering of panelItem code : LTP/M/43.01 265 Checking of control cable wiring and its connectionItem code : LTP/M/43.02 266 Checking of MCBs ( fuses) and replacing if necessaryItem code : LTP/M/43.03 267 checking of 110v dc supply at all pointsItem code : LTP/M/43.04 268 checking of 230v ac aux. supply at all pointsItem code : LTP/M/43.05 269 Checking of Indication lamps and testing it individually and replacing the faulty lampsItem code : LTP/M/43.06 270 Testing of internal wiring and its connections Item code : LTP/M/43.07 271 checking healthiness in manual mode and remote mode of cooling water pumps from UCB Panels.Item code : LTP/M/43.08 272 checking the operation of mechanical interlock for DG set and KSEB Supply. Rectify if necessary.Item code : LTP/M/43.09 273 LAVT PANEL Item code : LAVT/M/44 ( Monthly Maintanance ) 274 General Cleaning of LAVTpanelsItem code : LAVT/M/44 .01 275 CT/PT circuit tightness checkItem code : LAVT/M/44.02 276 check PT Circuit fuse and TB( HT<). Replace if any found faulty and apply gelItem code : LAVT/M/44 .03 277 NG PANELItem code : NGP/M/45 ( Monthly Maintanance ) 278 General Cleaning of NGT panelsItem code : NGP/M/45.01 279 Check CT/PT circuit tightness. check PT Circuit fuse and TB( HT<). Replace if any found faulty and apply gel.Item code : NGP/M/45.02 280 Check neutral grounding transformer and grounding resistance including earth switch.Item code : NGP/M/45.03 281 POWER TRANSFORMERSItem code : PTRF/M/46( Monthly Maintanance ) 282 General cleaning of transformers and the 11KV switch yardItem code : PTRF/M/46.01 283 Check all the external connections of thetransformers (Neutral CT bushes,earth connections)and top up oil in all transformers if requiredItem code : PTRF/M/46.02 284 Verify the operation of WTI,OTI and Bucholtz relay circuits of Power taransformersItem code : PTRF/M/46.03 285 Checking control cable wirings of marshalling box and its connection. Checking of terminal blocks and tightening, replacing it if neccessory. Apply gell on fuses.Item code : PTRF/M/46.04 286 Check 110Vdc and 230V ac supply to marshalling box. Check space heaters and rectify if necessasry.Item code : PTRF/M/46.05 287 TWO POLE STRUCTURE Item code : TPS/M/47( Monthly Maintanance ) 288 Check the tightness of all cables of two pole structure, AB switch, Lightning arrestors and CT PT Unit.Item code : TPS/M/47.01 289 Inspect contacts of AB Switch. Repair if necessaryItem code : TPS/M/47.02 290 STREET LIGHTS & STATION LIGHTINGItem code : STL/M/48( Monthly maintenance ) 291 Check the complete lighting arrangement of powerhouse including all street lights, YARD lights and station lighting arrangements.including ceiling fans. Tighten the cables of junction boxes of street lights. Replace faulty bulbs and tubes. Repair to the installations if requiredItem code : STL/M/48.01 292 BATTERY BANK & BATTERY CHARGER Item code : B&C/M/49( Monthly Maintanance ) 293 Checking of the healthiness of battery by switching off the battery charger and measurement of voltage of each and every battery cell .Replace faulty battery if anyItem code : B&C/M/49.01 294 Checking of the tightness of battery terminals in battery charger and battery bank. Apply petroleum gelly.Item code : B&C/M/49.02 295 Check of DC circuits and its healthinessItem code : B&C/M/49.03 296 check the operation of MCBs in ACDB and DCDB panelsItem code : B&C/M/49.04 297 11 KV VCB PanelItem code : VCBP/Q/50 ( QUARTERLY MAINTENANCE ) 298 Checking of Power Cable Terminaton and tighteningItem code : VCBP/Q/50.01 299 cable holding bracket tighteningItem code : VCBP/Q/50.02 300 BUS PT PanelItem code : BPTP/Q/51 ( QUARTERLY MAINTENANCE ) 301 Checking drawout and insert mechanism of PT trolliesItem code : BPTP/Q/51.01 302 POWER TRANSFORMERS Item code : PTRF/H/52( HALF YEARLY MAINTENANCE) 303 Check all connections of thetransformers (Neutral CT bushes,earth connections, bushes of HV/LV phases) by opening side covers. Arrest oil leakage if necessary.Item code : PTRF/H/52.01 304 Checking power cable wirings of HV and LV sides by opening the side covers. Ensure the tighteness of cable and its bushings. Item code : PTRF/H/52.02 305 Change silica gel if necessasry. check pressure release valves. Item code : PTRF/H/52.03 306 11 KV VCB PanelItem code : VCBP/H/53 (HALF YEARLY MAINTENANCE ) 307 Greasing the all Movable parts in VCBItem code : VCBP/H/53.01 308 Applying Gel in all Power termination and moving contactsItem code : VCBP/H/53.02 309 checking the operation of safety shutter operationItem code : VCBP/H/53.03 310 Checking drawout and insert mechanism of trolliesItem code : VCBP/H/53.04 311 checking of closing and tripping circuit in test modeItem code : VCBP/H/53.05 312 LTAC PANEL Item code : LTP/H/54(HALF YEARLY MAINTENANCE) 313 Checking of Power Cable Terminaton and tighteningItem code : LTP/H/54.01 314 Checking of terminal blocks and tightening, replacing it if neccessoryItem code : LTP/H/54.02 315 cable holding bracket tighteningItem code : LTP/H/54.03 316 Checking the indication lamp circuit and changing the lamp, switch if nessessoryItem code : LTP/H/54.04 317 Applying Gel in all fuse linkItem code : LTP/H/54.05 318 DG set cable termination check and its interlockingItem code : LTP/H/54.06 319 Applying Gel in all Power termination and moving contactsItem code : LTP/H/54.07 320 POWER CABLESItem code : POC/Y/55(YEARLY MAINTENANCE) 321 check all power cables ofpower house both HT and LT and Sensor cable and power cable to Weir site etc. Meggar all 11KV and 3.3 KV cables and record values.Item code : POC/Y/55.01 322 11 KV VCB Panel Item code : VCBP/Y/56( YEARLY MAINTENANCE) 323 Tightening of all busbar joints Item code : VCBP/Y/56.01 324 Cleaning the busbar and busbar chamber by opening of all cover and tightening of busbars.Item code : VCBP/Y/56.02 325 Meggering ofbus barsItem code : VCBP/Y/56.03 326 Meggering of all VCB TrolliesItem code : VCBP/Y/56.04 327 BUS PT Panel Item code : BPTP/Y/57( YEARLY MAINTENANCE) 328 Greasing of all Movable parts in PT truckItem code : BPTP/Y/57.01 329 Tightening of all busbar joints Item code : BPTP/Y/57.02 330 Applying Gel in all Power termination and moving contactsItem code : BPTP/Y/57.03 331 Cleaning the busbar and busbar chamber by opening of all cover and tightening of busbars.Item code : BPTP/Y/57.04 332 Meggering of all BUS PTTrolliesItem code : BPTP/Y/57.05 333 checking the operation of safety shutter operationItem code : BPTP/Y/57.06 334 LTAC PANEL Item code : LTP/Y/58( YEARLY MAINTENANCE) 335 Tightening of all busbar joints Item code : LTP/Y/58.01 336 Cleaning the whole panel, busbar with opening of all coverItem code : LTP/Y/58.02 337 BATTERY & CHARGER Item code : B&C/Y/59(YEARLY MAINTENANCE) 338 All the battery Voltage shall be monitored after switching off the Battery Charger continuosly for 6 hours .The faulty cellhas to be replaced if anyItem code : B&C/Y/59.01 339 The boosting and trickling charge of the battery charger has to be verified Item code : B&C/Y/59.02 340 The batteries and battery room has to be cleanedItem code : B&C/Y/59.03 341 AUXILIARY TRANSFORMERS Item Code: ATRF/Y/60( YEARLY MAINTENANCE) 342 Check all the internal connections of thetransformers (Neutral, phases and earth connections)and top up oil in all transformers if requiredItem Code: ATRF/Y/60.01 343 Checking power cables of HV and LV sides by opening the side covers. Ensure the tighteness of cable and its bushings. Item Code: ATRF/Y/60.02 344 Change silica gel if necessasry.Item Code: ATRF/Y/60.03
