supply , erection , testing and commissioning of 08 nos . 145 kv sf6 circuit breakers along with essential spares and accessories including dismantiling of existing breaker at 2x15 mw , bhps-ii , silpara and 3x20 mw , bhps-iii , deolond , supply of 145 kv , 1600 amp . gang operated sf6 gas circuit breaker with complete foundation structure ( suitable for erection on already existing foundation bolts ) connectors & control panel , trip magnet assembly ( deolond-03 + silpara-01 ) , closing magnet assembly ( deolond-03 + silpara-01 ) , auxiliary contact ( deolond-06 + silpara-02 ) , sf6 gas cylinders ( 50 kg ) ( deolond-01 ) , closing coils ( deolond-06 + silpara-02 ) , tripping coils ( deolond-06 + silpara-02 ) , spring charging motor ( deolond-03 + silpara-01 ) , trip latch assembly ( deolond-02 + silpara-01 ) , close latch assembly ( deolond-02 + silpara-01 ) , limit switch ( deolond-03 + silpara-01 ) , tnc switch ( deolond-03 + silpara-01 ) , charges for dismantling of existing breakers , erection , testing & commissioning charges for new breakers , supply of sheet steel fabricated powder coated generator power distribution panel ( mcc ) with 02 nos . 1000 a , 4 pole mccb as incomer from 500 kva & 250 kva dg set and one 1000 a , 4 pole mccb for output including metering , control , annunciation , & interlocking , service charges for erection & commissioning of panels with either side of existing 415 v station mcc , wti , oti , mog , red oxide paint , synthetic enamel paint of smoke grey , yellow paint for inside painting as per scope of work , air cell for conservator ( size: 4282x2082x2000 mm , material: nylon 6 weave-plain ) , bucholz relay ( type: gor3 ) , prv , differntial pressure gauge ( 02 nos . ) water flow meter ( 02 nos . ) , oil flow meter ( 02 nos . ) pressure gauges ( 04 nos . ) , thermometer ( 04 nos . ) , bearings for gt oil motor , valve/nrv if found defective , silica gel breather ( 08 kg ) , alumina balls , hv bushing lead supporting cleats , fibre glass hardware with 50 nuts for each type m8 studs , fibre glass hardware with 50 nuts for each type m12 studs , fibre glass hardware with 50 nuts for each type m16 studs , crap tape , cotton tape , permalli wooden plates as per scope of work , insulating blocks for core locking at the top , terminal blocks , mcbs , contactors , auxiliary contactors for gt marshalling box , consumables required as per scope of work