Short Term E Tender No. 02 / ETD / (B) / 2023-24

Amount

Complete evacuation of 100 MVA Transformer Main Tank and filling of dry air of dew point 50°C or better in vacuum and then pressure upto 0.25 kg/Cm2 and again evacuation of the Transformer tank after required time interval (Approx. 12 to 24 Hrs) using centrifuging machine. The work shall include connecting pipes of machine as required, measuring dew point value of Dry Air during every cycle (1 Job is defined as complete cycle of evacuation, filling and maintaining of dry air in the T/F main tank), till the required value is achieved under supervision of Supervising Engineer.

Offline Testing : Routine Test (i) Turns Ratio Test (ii) Magnetic Balance (iii) Magnetizing Current (iv) Short Circuit Impedance Measurement (v) Insulation Resistance Measurement

Special Test

(i) Tan delta and Capacitance measurement of Bushings (ii) Tan delta and Capacitance Measurement of Winding (iii) Sweep Frequency Response Analysis (iv) Frequency Response Stray Loss Measurement (v) Frequency Domain spectroscopy

Oil Testing (i) Sample Collection and Routine Test as per IS : 1866 including Dissolve Gas Analysis and Furan Test.

Travel Charges per visit

Technocrat Electrical

M/s S.S. Refregeration