Municipal Corporation Tender

Service of oil type Transfer(with all parameter) Dielectric strength, meter content, acidity sludge contact, flash point, DDA, IFT and resistivity for transformer oil, before maintenace drain some of the transfer of oil with a clean and dry container.Including Re-filling of Silica Zel checking of transformer. All parameter are given below:- A) Items that need to be inspected hourly:- 1. Winding temperature 2. Ambient Temperature. 3. Oil Temperature 4. Load in amps. 5. Voltage B) Items that needs to be inspected daily:- 1. Oil level in the transformer (if it low, you should add in more oil and also discover whether there is a leak). 2. Oil level in the bushing. 3. Oil level in teh OLTC conservator (either a guage or sight window will show you the level. If it is low, simply top it up with new oil). 4. Dehydrating breather (you must check both that the air passages are free and the color of the active agent. Pink means the charge need to be changed). 5. Relief diaphagram. 6. Cool fan. 7. Bearing motor (lubricate it and check the contacts. If the contacts have worn, they should be replaced. 8. Operating mechanism C) Items that need to be checked quarterly or every four month:- 1. Bushing (clean them and replace if they have cracked). 2. Oil in transformer (Not just the level this time. Quarterly you should check the dielectric strength and water content of the oil. The quality may need to be restored). D) Items that need to be checked quarterly or every four month:- 1. Oil in the diverter swithch of OLTC. E) Items that needs to be yearly:- 1. OIl in transformer (this time check the acidity resistivity, tan delta and sludge. It may need to be filtered or repalced entierly. 2. Oil filled condenser bushing. 3. Gasket joints (may needs to be tightened to avoid uneven pressure. 4. Cable boxes. 5. Relays alarm and other circuits. 6. Painting 7. Earth Resistance

Service/Minor repair repaiaring/replacement of Main Lt panel. All parameter are given below:- 1. Cabling of all incoming and outgoing Termination. 2. Termination. 3. Thimbles 4. Greasing 5. Main Bus bar/auxition Bus bar 6. Defective Relay. 7. Meter panel. (All wire to be meggered and the defective/short wire will be replaced

Re/Filling of Transformer Oil if required to do the job The work shall be executed to the entire satisfaction of Engineer-in-Charge.