28853126
oil filled service transformer as per nit documents , main supply ( refer notes ) , 5.0mva, 11kv / 6.9kv, 3 phase, 2 winding, outdoor, onan, z=9%, dyn1, off circuit taps ±5% in steps of 2.5% ( with cable box type hv, with bus duct type lv ) , 6.3mva, 11kv / 6.9kv, 3 phase, 2 winding, outdoor, onan, z=6%, dyn1, off circuit taps ±5% in steps of 2.5% ( with cable box type hv, with bus duct type lv ) , list of mandatory spares ( refer notes for spares ) , hv bushings with metal parts for each rating 11kv / 6.9kv, 5000kva , hv bushings with metal parts for each rating 11 / 6.9kv, 6300kva , lv bushings with metal parts for each rating 11kv / 6.9kv, 5000kva , lv bushings with metal parts for each rating 11 / 6.9kv, 6300kva , lvn bushings with metal parts for each rating 11kv / 6.9kv, 5000kva , lvn bushings with metal parts for each rating 11 / 6.9kv, 6300kva , oil temperature indicator 11kv / 6.9kv, 5000kva , oil temperature indicator 11 / 6.9kv, 6300kva , magnetic oil level gauge 11kv / 6.9kv, 5000kva , magnetic oil level gauge 11 / 6.9kv, 6300kva , silica gel breather 11kv / 6.9kv, 5000kva , silica gel breather 11 / 6.9kv, 6300kva , winding temperature indicator with all accessories 11kv / 6.9kv, 5000kva , winding temperature indicator with all accessories 11 / 6.9kv, 6300kva , buchholz relay 11kv / 6.9kv, 5000kva , buchholz relay 11 / 6.9kv, 6300kva , pressure relief valve 11kv / 6.9kv, 5000kva , pressure relief valve 11 / 6.9kv, 6300kva , set of valves 11kv / 6.9kv, 5000kva , set of valves 11 / 6.9kv, 6300kva , gaskets 11kv / 6.9kv, 5000kva , gaskets 11 / 6.9kv, 6300kva , radiator bank 11kv / 6.9kv, 5000kva , radiator bank 11 / 6.9kv, 6300kva , mccb / mpcb / mcb of each type and rating 11kv / 6.9kv, 5000kva , mccb / mpcb / mcb of each type and rating 11 / 6.9kv, 6300kva , extra oil ( 10% ) in sealed non returnable standard drums ( type & no. of transformers, as below ) , 5.0mva, 11kv / 6.9kv, 3 phase, 2 winding, outdoor, onan, z=9%, dyn1, off circuit taps ±5% in steps of 2.5% ( with cable box type hv, with bus duct type lv ) , 6.3mva, 11kv / 6.9kv, 3 phase, 2 winding, outdoor, onan, z=6%, dyn1, off circuit taps ±5% in steps of 2.5% ( with cable box type hv, with bus duct type lv ) , type test ( refer notes ) , 5.0mva, 11kv / 6.9kv, 3 phase, 2 winding, outdoor, onan, z=9%, dyn1, off circuit taps ±5% in steps of 2.5% ( with cable box type hv, with bus duct type lv ) temperature rise test with dissolved gas analysis test before & after , 5.0mva, 11kv / 6.9kv, 3 phase, 2 winding, outdoor, onan, z=9%, dyn1, off circuit taps ±5% in steps of 2.5% ( with cable box type hv, with bus duct type lv ) lightning impulse on hv & lv & neutral ( where neutral is resistance grounded ) full wave & chopped wave , 5.0mva, 11kv / 6.9kv, 3 phase, 2 winding, outdoor, onan, z=9%, dyn1, off circuit taps ±5% in steps of 2.5% ( with cable box type hv, with bus duct type lv ) vacuum test during tank fabrication , 5.0mva, 11kv / 6.9kv, 3 phase, 2 winding, outdoor, onan, z=9%, dyn1, off circuit taps ±5% in steps of 2.5% ( with cable box type hv, with bus duct type lv ) pressure test on transformer , 5.0mva, 11kv / 6.9kv, 3 phase, 2 winding, outdoor, onan, z=9%, dyn1, off circuit taps ±5% in steps of 2.5% ( with cable box type hv, with bus duct type lv ) degree of protection for m.box & cable box , 5.0mva, 11kv / 6.9kv, 3 phase, 2 winding, outdoor, onan, z=9%, dyn1, off circuit taps ±5% in steps of 2.5% ( with cable box type hv, with bus duct type lv ) noise level test as per nema tr1 , 5.0mva, 11kv / 6.9kv, 3 phase, 2 winding, outdoor, onan, z=9%, dyn1, off circuit taps ±5% in steps of 2.5% ( with cable box type hv, with bus duct type lv ) short circuit test ( special test ) as per iec 60076 5**, as per note 1 for type test. , 6.3mva, 11kv / 6.9kv, 3 phase, 2 winding, outdoor, onan, z=6%, dyn1, off circuit taps ±5% in steps of 2.5% ( with cable box type hv, with bus duct type lv ) temperature rise test with dissolved gas analysis test before & after , 6.3mva, 11kv / 6.9kv, 3 phase, 2 winding, outdoor, onan, z=6%, dyn1, off circuit taps ±5% in steps of 2.5% ( with cable box type hv, with bus duct type lv ) lightning impulse on hv & lv & neutral ( where neutral is resistance grounded ) full wave & chopped wave , 6.3mva, 11kv / 6.9kv, 3 phase, 2 winding, outdoor, onan, z=6%, dyn1, off circuit taps ±5% in steps of 2.5% ( with cable box type hv, with bus duct type lv ) vacuum test during tank fabrication , 6.3mva, 11kv / 6.9kv, 3 phase, 2 winding, outdoor, onan, z=6%, dyn1, off circuit taps ±5% in steps of 2.5% ( with cable box type hv, with bus duct type lv ) pressure test on transformer , 6.3mva, 11kv / 6.9kv, 3 phase, 2 winding, outdoor, onan, z=6%, dyn1, off circuit taps ±5% in steps of 2.5% ( with cable box type hv, with bus duct type lv ) degree of protection for m.box & cable box , 6.3mva, 11kv / 6.9kv, 3 phase, 2 winding, outdoor, onan, z=6%, dyn1, off circuit taps ±5% in steps of 2.5% ( with cable box type hv, with bus duct type lv ) noise level test as per nema tr1 , 6.3mva, 11kv / 6.9kv, 3 phase, 2 winding, outdoor, onan, z=6%, dyn1, off circuit taps ±5% in steps of 2.5% ( with cable box type hv, with bus duct type lv ) short circuit test ( special test ) as per iec 60076 5**, as per note 1 for type test....
Due Date : November 23, 2021
Tender Value : ₹ Ref. Documents