Work of preventive maintenance and break down repair of components of 33/11 KV substations under

Amount

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budfeax iSusy Work involved- 1. Dusting and Cleaning (by Cleaning agent) of panel to obtain desired IR value. 2. Cleaning of Breaker, oiling and Greasing of moving parts, work of Tripping and closing adjustment, contact resistance measurement of Vacuum Interrupter. 3. Checking and testing of closing/tripping machanism of breaker. 4. Replacement of weaker insulation control cables/Wiring. 5. Cleaning of Jaws and its greasing/oiling. 6. Cleaning of Busbar spout and replacement of spout with lesser IR value. 7. Cleaning of PT, CT and CT spout. 8. Cleaning of Relays through suitable solvent. 9. Adjustment of setting of relays, as required, and consequent testing. 10. Tightening of power and control cable connections/Wiring as required. 11. Heating of panel through blower. 12. Miscellaneous petty works. Note- All T & P and Petty Material/Consumables viz oil, grease, cloth, cleaning solvent, nut, bolt, washer, seals etc shall be arranged by the firm.

vkmVxksbax iSusy Work involved- 1. Dusting and Cleaning (by Cleaning agent) of panel to obtain desired IR value. 2. Cleaning of Breaker, oiling and Greasing of moving parts, work of Tripping and closing adjustment, contact resistance measurement of Vacuum Interrupter. 3. Checking and testing of closing/tripping machanism of breaker. 4. Replacement of weaker insulation control cables/Wiring. 5. Cleaning of Jaws and its greasing/oiling. 6. Cleaning of Busbar spout and replacement of spout with lesser IR value. 7. Cleaning of CT and CT spout. 8. Cleaning of Relays through suitable solvent. 9. Adjustment of setting of relays, as required, and consequent testing. 10. Tightening of power and control cable connections/Wiring as required. 11. Heating of panel through blower. 12. Miscellaneous petty works. Note- All T & P and Petty Material/Consumables viz oil, grease, cloth, cleaning solvent, nut, bolt, washer, seals etc shall be arranged by the firm.

33 ds0oh0 fLop;kMZ WWork involved- 1. Meggering of lightening arresters of all 3 phases of all power transformers of the substations. 2. Mechanical adjustment of bus side and line side TPMO/Isolator, oiling and greasing of moving parts to ensure smooth operation. 3. Pole contact testing of CT. 4. Machanical adjustment, as required, of 33 KV breaker. Oiling and greasing of moving parts to ensure smooth operation. 5. Ensuring local and remote operation of 33 KV breaker (Firm will not be responsible for any defect attributable to department). 6. Cleaning of all swithgears, including transformer, lying in switchyard. Note- All T & P and Petty Material/Consumables viz oil, grease, cloth, cleaning solvent, nut, bolt, washer, seals etc shall be arranged by the firm.

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11 ds0oh0 fLopxh;j dk Break down maintenance (Incoming and Outgoing)- 1. Attending flashing caused by any fault or other wise (This includes cleaning through suitable solvent, replacement of damaged CT and PT if required. 2. Work on jaw contact (This includes mechanical adjustment, cleaning and/or replacement of jaws, as required. 3. Work on Vacuum Interrupter Bottle (This includes mechanical adjustment, cleaning and/or replacement of bottles, as required. 4. Work on tripping closing coil (This includes mechanical adjustment, cleaning and/or replacement of coil as required. 5. Work on tripping clutch (This includes mechanical adjustment, cleaning and/or replacement of clutch as required. 6. Replacement of tripping and closing shaft, as required. 7. Removal of flashing in Busbar spout and its replacement, as required. 8. Removal of flashing in CT spout and its replacement, as required. 9. Work on rack out gear and/or jack bush. (This includes greasing, Replacement, as required. 10. Replacement of damaged indoor/outdoor cable box of 11 KV level. 11. Replacement of damaged straight through of 11 KV level. 12. Other works required to attend breakdown. Note- 1- Any one job as per the amount of work description given in the above job will be considered as 1 job. 2- All T & P and Petty Material/Consumables viz oil, grease, cloth, cleaning solvent, nut, bolt, washer, seals etc shall be arranged by the firm.

33 ds0oh0 fLopxh;j dk break down maintenance- 1. Attending breakdown caused by any fault or other wise. This includes A. Cleaning/Repair/replacement of CT, PT LA, B. Repairing/Replacement of damaged line side and/or bus side TPMO. 2. Replacement of damaged indoor/outdoor cable box of 33 KV level. 3. Replacement of damaged straight through of 33 KV level. 4. Miscellaneous works required to be done attend breakdown. 5. Other works required to attend breakdown. Note- 1- Any one job as per the amount of work description given in the above job will be considered as 1 job. 2- All T & P and Petty Material/Consumables viz oil, grease, cloth, cleaning solvent, nut, bolt, washer, seals etc shall be arranged by the firm.

Gupta Traders and Engineering Works (BID ID -5289546)

NATIONAL ENTERPRISES (BID ID -5288191)