WBIW/EE/MDMD/e-NIT- 20/2025-26/10

Servicing, overhauling and cleaning of following 33-KV outdoor equipments cleaning the carbonized of knife contact, fixed contact, oiling and greasing for smooth operation includng changing of petty spares, nuts, bolts springs etc. 33 - KV gang operated isolator.

Servicing and cleaning of 33-KV outdoor sub-stations aluminium high level bus and low level bus cleaning all post insulator, after opening from support clamps, cleaning of petty spares like Ampere tape, nuts, bolts, spring etc. refixing the same after greasing as per direction of E.I.C.

Dehydration & filtration of power transformer oil to raise the dielectric strength to the value specified in IS including submission of test result. The cost includs man, machinary, and tools & plant hire charges to complete the at site as per direction of the EIC.

Taking out sample of oil and carrying out chemical test of oil in respect of its acidity test through reputed test house and submission of test result.

Takingout sample of oil from power/voltage transformer, OCB etc. & testing their dielectric strength according to specification and submission of test result.

Opening the transformer breather and refitting the same after changing the silica gel including the supply of necessary gasket and silica gel.

Servicing and overhauling 2500 / 1600 /1250/1000 Amps A.C.B. after withdrawing the breaker from its track, complete servicing the breaker, cleaning, moving and fixed contacts and adjustment incl.mechanical lever, greasing, oiling etc. and disconnection of the armoured cable and cleaning the surface with carbon tetra chloride, marking cloth, emery papers and applying of petrolium jelly etc. to the socket terminals and taping with PVC tapes and re-connection of the same as per direction of E.I.C.

Servicing and overhauling of 400 AMPS/ 500 AMPS/ 630 AMPS /1250 Amps ,11KV/ 6.6 KV. /3.3kv V.C.B./ V.C.U. dismantling the rack from the housing, opening the components, necessary cleaning of the component, carbonised portion, changing of rubber gasket, defective parts, cleaning of all mechanism parts and lubricating the mechanism, opening of C.T. & P.T.S., busbar spout assembly cleaning the same and insulated properly by supply of C.T.C. etc. and refitting all the parts to its original position by making all relevant electrical connection, panel wiring etc. for satisfactory & operation.

Servicing and overhauling of 1000/1250 AMPS , 33KV V.C.B. Panel dismantling the rack from the housing, opening the components, necessary cleaning of the component, carbonised portion, changing of rubber gasket, defective parts, cleaning of all mechanism parts and lubricating the mechanism, opening of C.T. & P.T.S., busbar spout assembly cleaning the same and insulated properly by supply of C.T.C. etc. and refitting all the parts to its original position by making all relevant electrical connection, panel wiring etc. for satisfactory & operation

Servicing, cleaning and testing, calibration of following relay (for 6 KV Panel/11 KV Panel) For motor protection: Each relay set consists of following relays Motor protection all relay and 1 NO. VAJH 13 - 1 NO.

Taking out the P.T. (33 KV/110V) (11 KV/110V) (6 KV/110V) (3.3 KV/110V) HT VCB Panel and thorough cleaning, washing the interior portion with carbon tetachloride after taking out the from P.T. housing and re-fitting the same after attaining the desired IR. valve and re-fitting, re-fixing the P.T. complete and testing and commisining as per direction of E.I.C

Dismantling all the terminals of the motor control panel and checking all the sockets on both side of panel, starter and capacitor bank including tapping as required and re- connections of the motor starter terminals after servicing of the panel and complete testing as per direction of E.I.C.

Servicing and overhauling the Automatic star delta starter for 120 -180 HP Motor after opening all components, electric Timer, bi-metal relay etc. & fitting fixing the same after same plate servicing and overhauling testing as required as per direction of EIC (Spares will be supplied by Deptt.) (Spares will be supplied by Deptt.)

Complete servicing and overhauling and necessary repairing of DTH 250 Amps MCCB (L&T Make).

Dismantling, Servicing, cleaning, testing, re-fitting and calibration of the Each feeder consist of Relay type- 2nos over current relay and one no earth fault relay (CDG 31 - 1No., VAX 31 - 1No. And VAMP 31 - 1No) For 3.3 /6.6/11/33 KV panel.

Dismantling, Servicing, cleaning, testing, re-fitting and calibration of Each feeder consist of over curren -2ns, under voltage - 2nos, over voltage 2nos ( VDG 13 - 2Nos., VDG 11 - 2Nos., VDG 14 - 1No. & VDG 31 - 1 No.)For 3.3 /6.6/11/33 KV Bus P.T. Feeder.

Dismantling, Servicing, cleaning, testing, re-fitting and calibration of the Each Capacitor Feeder consist of over curren -1nos, under voltage - 1nos, over voltage 1nos (CDG 61 , VAX 31 & VAGH 13) For 3.3 /6.6 KV Capacitor Feeder

Dismantling, Servicing, cleaning, testing, re-fitting and calibration of the Each Bus Coupler Feeder / incommer feeder consist of over curren -2nos, Earth fault - 1no, mater trip- 1no and trip supervission relay 1nos (CDG 31, VAX 31 & VAJH 13) For 3.3 /6.6 KV / 11 KV Feeder

Dismantling, Servicing, cleaning, testing, re-fitting and calibration of the 2500 KVA - 33kv/3.65kv & 500 KVA - 33kv/0.433kv Transformer consist of over curren-2nos , Earth fault - 1no, differential relay under voltage relay-1no , Transformer protection relay -3nos, master trip relay - 1nos (CDG 61, VAJH 13 & VAA 11, VAX 31, CAG 14 ) . for Each trans former.

up to 95sqmm

240 to 300 sqmm

Maintenance and overhauling of cooling and lubricating system as per manufacturers instruction manual with all tools, tackles etc. This job includes labour charges, sundry cleaning material etc. This job includes inspection, checking and cleaning of all parts and replacement of damaged parts as per instructions (spares cost excluded) and refitting of all parts & assemblies with proper alignment & test & trial for 24 hrs. etc complete as per direction.

Suuply of Kirlosker makeTotally enclosed Fan cooled Squirrel cage Induction motor Foot mounted IE2 Efficiency, Output power - 11KW/15HP, 4pole, 1500 rpm, Frame no. - RC160ML, enclosure conforming to protection IP55 Horizental foot mounted (B3), continuously rated (S1) suitable for operation 415+/- 10%V, 3 Ph, 50 Hz+/-5%AC supply with ambient 50 degree centigrade, class F insulationwith temperature rise limited to class Band altitude less than 1000M above MSLconforming to IS: 12615IEC/600034.

100 mm dia. medium quality

125 mm dia. medium quality

Supplying, fitting and fixing gun metal wheel valve of approved brand and make tested to 21 kg per sq. cm. (for water lines only). 100 mm dia

HRC fuse, 6.6 kv, 100/120 Amp (GE/BUSSMAN/reputed make)

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