Upgradation of 11 KV/415V electrical substations in various T.E bldgs. under EE( E-W) HN MTNL Delhi.

Electrical Items :

Testing and meggaring of 11 KV HT VCB, CT with p.c testing, insulation testing and removal of moisture in bus bars, insulator, and H.T Cable box, heating of complete C.T, testing etc. complete as required.

High potential testing of 11kV 3 core XLPE HT power cable by disconnecting both ends of the cable from the bus-bars/HT Panel/transformer and re-connecting & tightening the same after HV testing etc. complete as required.

Replacement of following type of cable end joint with cast resin compound, including lugs and other jointing materials, for following size of 3 core, XLPE aluminium conductor (armoured) cable of 11KV grade i/c cutting, removing the existing faulty cable end termination wherever required etc. complete as required. (Note: Make of jointing kit- Denson/ Raychem or equivalent) a)Indoor Type Joint for cable-sizes 95sq.mm. to 300 sq.mm.

Servicing of 400 to 800 Amp rating HT VCB in existing HT panel complete with cleaning, alignment, adjustment of gap between phases, lubricating all moving parts for smooth mechanical operation etc. complete as required.

Servicing of 800 to 3200 Amp rating LT ACB in existing LT cubicle panel complete with tightening of all terminals ,cleaning, alignment, adjustment of gap between phases lubricating all moving parts for smooth mechanical operation etc. complete as required.

Servicing / calibration/ testing of electronic protection relay/ IDMT relay with 3 elements ( one for earth fault & 2 for over current) with secondary injection testing kit complete as reqd.

Replacement of Digital type, Ammeter up to 2500 Amp. Size 96 x 96 sq.mm, (Make: Trinity / L&T) etc. complete with wiring, connection, testing etc. complete as required.

Replacement of Digital type, Voltmeter up to 500 Volt, size 96 x 96 sq.mm, (Make: Trinity / L&T) complete with wiring, connection, testing etc. complete as required.

Replacement of Digital type, KV Meter size 96 x 96 sq. mm, (Make: Trinity / L&T) complete with wiring, connection, testing etc. complete as required.

Replacement of LED type indication lamp with holder assembly 230 V AC / 24 DC / 48 V DC / 110 V DC, complete as required.

Lifting of existing submersible pump set of 1/1.5 HP with all accessories from borewell with the help of suitable arrengement like tripod / crane as per site requirement from depth of 200 ft. etc. complete as reqd.

Lowering of existing repaired submersible pump set of 1/1.5 HP with all accessories from borewell with the help of suitable arrengement like tripod / crane as per site requirement up to depth of 200 ft. etc. complete as reqd.

Repairing /Replacement of 1HP three phase submersible pump i/c rewinding, change gasket ,stoping leakage, i/c taking out from site to the workshop i/c loading unloading with removing of connection , and reconnecting 3 phase connection etc as per site requirement etc complete as required

Repairing of 1HP to 3HP monoblock pump i/c rewinding, change gasket ,stoping leakage, i/c taking out from site to the workshop i/c loading unloading with removing of connection , and reconnecting 3 phase connection etc as per site requirement etc complete as required

Supplying and fixing of starter panel of three phase 1HP to 3HP submersible pump set complete as required.

Supply & fixing of power pack unit having input 220 Volt AC and output 24/48/110 Volt DC i/c. making inter connection suitable for existing HT system etc. complete as required.

Providing and making of HT Panel control wiring with required wire, thimble etc complete as required.

Testing of Transformer including meggaring, high voltage test, IR value, balancing test, insulation testing and rectification of moisture in bus bar, insulator, in-coming, out-going and H.T Cable box, Heating of complete P.T, C.T testing etc. complete as required.

Less credit on account of dismantled material being contractor's Property.

DUBEY ELECTRIC WORKS