Work

1- Online Testing to be conducted on Transformer :- (A) 1- On line Partial Discharge Measurement. 2- Thermographic Measurement. 3- Noise Level Measurement. 4- Vobration Level Measurement. 5- Oil Test (NABL Approved Lab): (i)- General oil test as per IS 1866:2000 (Resistivity, Tan delta, BDV. Water PPM. IFT. Acidity, Flash point & Sludge content) (ii)- DGA as per relevant IEC (iii)- Furan analysis

2- Online Testing to be conducted on Transformer:- (1)- Capacitance & ten Delta of Bushing & Windings. (ii)- Turn Ratio at each taps. (iii)- Vector Group test. (iv)- Short Circuit Impedance test. (v)- Megnetizing current on each tap. (vi)- Magnetic balance test. (vii)- Winding resistance at all taps. (viii)- IR & PI Test. (ix)- Sweep frequency response analysis test & Mechanical assessment. (x)- Frequency response on stray loss test (FRSL) (xi)- Leakage Reactance & Impendance measurement. (xii)- Dynamic Contact resistance test for OLTC performance check. (xiii)- Moisture assessment & Dielectric analysis of winding insulation (FDS measurement).

NOTE- 1. All testing equipment (with latest calibration from NABL lab) will be provided by the contractor. 2. Cost of transportation for Oil samples & shifting of all testing equipment will be in the scope of the contractor. No extra payment will be done. 3. Petty or sub-contracting will not be allowed. 4. Contractor should have their own NABL Approved lab. 5. Recommendation to be given by firm as per test results..

100 MVA Transformer at 220KV S/S Nighasan (BHEL make Mfg- Year- 1985)

100 MVA Transformer at 220KV S/S Sitapur (Alstom make Mfg- Year- 2000)