Upgradation of motor protection system of 04 nos feeder breaker panel , Repairing, fixing of interlocking system arrangement, Repairing/Providing fixing of Microprocessor based instantaneous negative sequence relay

Amount

Part A: Repairing/Providig fixing & commissioning of Microprocessor based instantenious negative sequence relay in different type of switches installed at Rly siding S/S and main S/S of SDOCM.

Providing of inverse time numerical current relay with communication and negative sequence Relay.

Providing of 2.5 Sq mm. single core flexible coppwer wire standard qulity(60 mtr per switch x 15 switch)

Providing of Auxilary contactor for opreating of above relay /tripping circuit 110V coil

The above relay, with control circuiting as well as testing, checking, commissioning at site in all switches.

Part B: Repairing, fixing & commissioning of interlocking system arrangement in 11KV/3.3KV side from GOS to controlling breakers/switchgears installed at feeder breaker tarmi and main Sub-station of SDOCM

Providing of 2.5Sqmm. Flexible copper wire fire proof standard qity. with its covering conduit pvc pipe, clamps, sadle, socket, glands, etc. for tripping connections from GOS to controlling switchgears

Providing of Auxilary relay opreated 110V, 3 no + 3 NC, 5A for controlling of interlocking switch and tripping coil circuit

Providing of interlocking switch with NO/NC circuit contacts

Repairing & rectification of control circuit wiring in switch/breakers

Labour cost for complete system commissioning interlocking switch fitting in GOS by welding on plate with all system testing etc

Part C: Up-Gradation of motor protection system for 04 Nos crusher panel at Termi Rly, Siding under SDOCM.

Supply and Providing of mater Protection relay Microprocessor based programable numerical motor protection relay for 440 volt cursher motors flush type, 130-250 volts operating, thermal overload and pre trip alarm definite time O/C protection, unblanced current protection, earth fault protection, locked rotor protection, stalling protection while running excessive start protection, LCD Display with key pad for control and setting. Communication port with IEC 61850 Protocol, Communication port RS 232/USB.

Supply and fixing of moulded type current transformer of rating 300/150/5

Complete designing and Fabrication of electrical control panel of cubical shape floor mounted type fabricated out of 4mm sheel compartmentalised with hinged lockable doors dust and vermin proof powder costed with approved shed after 7 tank treatment process with IP42 and IP65 suitable for 415 volt 3 phase with complete fixing of 3 nos motor protection relay with calibrated ct and other accesories

Supplying and drawing following sizes of FRLS PVC Insulated copper conductor single core cable in the existing surface/recess steel/PVC conduit as required.

Supply and Providing of hooter for alarm 110 volt operating

Supply and Providing of push button with indicator lamp illuminated type

Supply and Providing of Emergency push button

Supply and Providing of Auxiliary contact for tripping

Labour cost for fitting/fixing commissioning with testing checking at site

Supervision, overhead and other incidental cost including contractor's profit

Total impact of GST for the purpose of CTC

M/S NATIONAL ELECTRICAL WORKS (BID ID -1144348)