Jodhpur Vidyut Vitaran Nigam Limited - Rajasthan
37438623 repair of damaged failed 33_11 kv 3.15 mva, 5.0 mva and 8.0 mva 33_11 kv power transformers , 1.0 ) opening of transformer cover, draining oil, de tanking core coil assembly, assessment and estimation for repair and replacement of part, providing locking arrangement on all valves & plugs as per requirement of specification, cleaning & washing of dust / rust & dirt from all other parts including core tanks & cooling tubes, re tank , variable with base date 01.03.2023 , 1.1 ) for 3.15 mva rating , 1.2 ) for 5.0mva rating , 1.3 ) for 8.0 mva rating , 2.0 ) supply of following damaged parts requiring replacement complete in all respect, variable with base date 01.03.2022 , 2.1 ) hv leg coil with insulation, varnish & baking of coil assembly ( vacuum impregnation ) ( the burn leg is to be retained by contractor ) , 2.2 ) lv leg coil with insulation, varnish & baking of coil assembly ( vacuum impregnation ) ( the burn leg is to be retained by contractor ) , 3 ) ht bushing ( 33 kv ) as per relevant iss. , 4 ) lt bushing ( 11 kv ) & neutral bushing as per relevant iss. , 5 ) bushing rod & other metal parts including nuts ( material & size of bushing / rods / nuts as per is specidfication ) , 5.1 ) for hv , 5.2 ) for lv , 6.0 ) set of gaskets ( rubberized cork neoprene material & size is to be needed ) , 6.1 ) for 3.15 mva rating , 6.2 ) for 5.0mva rating , 6.3 ) for 8.0 mva rating , 7.0 ) breather dehydrator ( silicagel type with fresh silicagel ) , 7.1 ) for 3.15 mva rating , 7.2 ) for 5.0mva rating , 7.3 ) for 8.0 mva rating , 8.0 ) glass for oil level gauge , 9 ) taping switch handel only , 9.1 ) for 3.15 mva rating , 9.2 ) for 5.0mva rating , 9.3 ) for 8.0 mva rating , 10 ) off loading taping switch without handle , 10.1 ) for 3.15 mva rating , 10.2 ) for 5.0mva rating , 10.3 ) for 8.0 mva rating , 11 ) oil drain / filter valve of gun metal , 12 ) lt terminal plate with terminals if required , 13 ) fresh transformer oil of standard qualityof isi mark, variable with base date 01.03.2023 , 14 ) filtration charges if transformer oil supplied by the nigam / repairer of the transformer , 15 ) sundry itemsviz cover bolts, plug cap screws, washers, insulation material etc. with minorrepairs of tank and other parts if any ( denting and welding etc. if required ) , 15.1 ) for 3.15 mva rating , 15.2 ) for 5.0mva rating , 15.3 ) for 8.0 mva rating , 16 ) cooling tubes / fins , 17 ) conservative tank with detachable end plates. , 18 ) dial type thermometer 100 mm size , 19 ) dial type thermometer 150 mm size with a set of alarm contact for 3.15 mva and above transformer rating. , 20 ) double float buchholz relay , 21 ) rating plate made of stainless steel or brass or alumunium engraved with details as per specification including date of despatch of transformer after repair , 22 ) earthing terminals , 23 ) air release valve , 24 ) arcing horns for ht bushing and lt bushing non adjustable type , 25 ) winding temperature indicator with alarm , 26 ) plain capaliary type oil level guage to be provided on the oil conservator with low level indicator , 27 ) magnetic type oil level gauge , 28 ) marshalling box for transformers , 29 ) shut off valve ( gun metal ) 1 1 / 2 , 30 ) painting inside with two coat of zinc chromate best paint and outside of transformer with two coat of grey paint and marking after derusting , 30.1 ) for 3.15 mva rating , 30.2 ) for 5.0mva rating , 30.3 ) for 8.0 mva rating , 31 ) to and fro transportation charges from any of the circle store / sub store to the work of the firm and back , 31 ) a ) loading & unloading charges at firms works and nigams stores ( both sides ) . , 31.a.1 ) for 3.15 mva rating , 31.a.2 ) for 5.0mva rating , 31.a.3 ) for 8.0 mva rating , 31. b ) transportation charges per km. , 31.b.1 ) for 3.15 mva rating , 31.b.2 ) for 5.0mva rating , 31.b.3 ) for 8.0 mva rating , 32 ) charges for minor repair where replacement of coil is not involved , 32.1 ) for 3.15 mva rating , 32.2 ) for 5.0mva rating , 32.3 ) for 8.0 mva rating , 33 ) labour charges for opening the transformer tank top cover ( if required to facilitate maintenance of transformer ) after removing required accessories.including all required t&p up to 5 mva transformer. , 34 ) preventing oil leakage by changing main gasket with material after removing cover. , 34.1 ) upto 1.6 mva transformer , 34.2 ) above 1.6 mva & upto 3.15 mva transformer. , 34.3 ) above 3.15 mva & upto 5 mva transformer. , 35 ) a ) change of hv / lv bushing gasket ring and rubber washers including supply of required material & draining / re filling of oil as required. , 35 ) b ) for additional hv / lv bushing work. * this amount will not be payable incase the work of removing of top cover gasket is also awarded in the same order. , 36 ) change of gaskets of valves / radiator / buchhlozes relay including cost of gaskets etc. , 36.1 ) valves / buchhlozes relay , 36.2 ) radiator valves. , 37 ) providing & fixing ( including replacement ) of hv / lv bushing ofreputed make& bushing rod of brass matel including cost of gasket & rubber rings .gasket makes are tabross, tiger, zebra and any other reputed make. , 37.a ) hv side , 37.a.1 ) upto 1.6 mva transformer , 37.a.2 ) above 1.6 mva & upto 3.15 mva transformer. , 37.a.3 ) above 3.15 mva & upto 5 mva transformer. , 37.b ) lv side , 37.b.1 ) upto 1.6 mva transformer , 37.b.2 ) above 1.6 mva & upto 3.15 mva transformer. , 37.b.3 ) above 3.15 mva & upto 5 mva transformer. , 38 ) dehydration / filteration and reconditioning of transformer oil ( electricity shall be supplied by deptt. ) as per norms and testing thereof in presence of sub station incharge. , 39 ) cleaning of oil scale deposits over the body and radiators of power transformer with thinner / detergent and de rusting in perfect manner. , 39.1 ) upto 1.6 mva transformer , 39.2 ) above 1.6 mva & upto 3.15 mva transformer. , 39.3 ) above 3.15 mva & upto 5 mva transformer. , 40 ) change of following items: , a ) oil temperature indicator , b ) windingtemperature indicator , c ) silica gel container , d ) presser relief device make atbus , e ) magnetic oil level gauge.make atbus , f ) gas operated buchhloz relay ( double floating type make atbus ) ...