supply of oil filled service transformer for ntpc singrauli tpp oil filled service transformer for ntpc singrauli tpp as per nit documents , 1600kva, 11kv/0.433kv, 3 phase, 2 winding, outdoor, onan, z=6.25%, dyn1, off circuit taps ±5% in steps of 2.5% (with cable box type hv, with bus-duct type lv and with solidly grounded lvn termination) , tank pressure test , tank vacuum test , measurement of acoustic noise level as per nema tr-1 (special test) , temperature rise test at a tap corresponding to maximum losses. (gas chromatography shall be conducted on oil sample taken before & immediately after temp. rise test. gas analysis shall be as per is: 9434 (based on iec: 60567), results will be interpreted as per is: 10593 (based on iec: 60599).result shall be recorded for future reference). , lightning impulse (full & chopped wave) test on windings (as per iec 60076-3) , short circuit test (special test) as per iec 60076-5** , 2000kva, 11kv/0.433kv, 3 phase, 2 winding, outdoor, onan, z=10.0%, dyn1, off circuit taps ±5% in steps of 2.5% (with cable box type hv, with bus-duct type lv and with solidly grounded lvn termination) , tank pressure test , tank vacuum test , measurement of acoustic noise level as per nema tr-1 (special test) , temperature rise test at a tap corresponding to maximum losses. (gas chromatography shall be conducted on oil sample taken before & immediately after temp. rise test. gas analysis shall be as per is: 9434 (based on iec: 60567), results will be interpreted as per is: 10593 (based on iec: 60599).result shall be recorded for future reference). , lightning impulse (full & chopped wave) test on windings (as per iec 60076-3) , short circuit test (special test) as per iec 60076-5** , 2500kva, 11kv/0.433kv, 3 phase, 2 winding, outdoor, onan, z=10.0%, dyn1, off circuit taps ±5% in steps of 2.5% (with cable box type hv, with bus-duct type lv and with solidly grounded lvn termination) , tank pressure test , tank vacuum test , measurement of acoustic noise level as per nema tr-1 (special test) , temperature rise test at a tap corresponding to maximum losses. (gas chromatography shall be conducted on oil sample taken before & immediately after temp. rise test. gas analysis shall be as per is: 9434 (based on iec: 60567), results will be interpreted as per is: 10593 (based on iec: 60599).result shall be recorded for future reference). , lightning impulse (full & chopped wave) test on windings (as per iec 60076-3) , short circuit test (special test) as per iec 60076-5** , 2500kva, 11kv/3.45kv, 3 phase, 2 winding, outdoor, onan, z=6.0%, dyn1, off circuit taps ±5% in steps of 2.5% (with cable box type hv, with bus-duct type lv and with resistance grounded busbar type lvn termination) , tank pressure test , tank vacuum test , measurement of acoustic noise level as per nema tr-1 (special test) , temperature rise test at a tap corresponding to maximum losses. (gas chromatography shall be conducted on oil sample taken before & immediately after temp. rise test. gas analysis shall be as per is: 9434 (based on iec: 60567), results will be interpreted as per is: 10593 (based on iec: 60599).result shall be recorded for future reference). , lightning impulse (full & chopped wave) test on windings (as per iec 60076-3) , lightning impulse on neutral , short circuit test (special test) as per iec 60076-5** , **charges for carrying out short circuit test shall be payable based on actual invoice from designated laboratories (cpri, bhopal/ cpri, banglore / erda, vadodara) with an additional lump sum amount of 5% of ex-works price of transformer being tested to cover handling costs (transportation, insurance etc.). , in case type/ special tests are waived, the type/ special test charges shall not be payable to the bidder , charges for all type/ special tests except short circuit test shall be considered for price comparisons purpose. , in case any of the type/ special tests are required to be repeated the same shall be carried out by the vendor without any commercial / delivery implication to bhel.