Mahanagar Telephone Nigam Limited Tender

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Mahanagar Telephone Nigam Limited - MTNL Tender

Works
Electrical and Electronics
Eprocure
Opening Date24 Jul 2024
Closing Date5 Aug 2024
Tender Amount₹ 34,99,552 
Notes
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Costs

Description

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BOQ Items

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Servicing of 400Amp to 800Amp HT OCB / VCB complete with cleaning, alignment, adjustment of gaps between phase to phase, lubricating all moving parts, adjustment for smooth mechanical operation etc complete as required.

20

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De-hydration of transformer oil with Filter machine at site to maintain the break down value, die electric strength of oil up to 50 KV including providing oil testing facility at site as reqd.

5000

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Supplying & filling the transformer oil, sealed pack drum including transportation charges etc. ( Make : M/S Power oil / Savita with ISI marked having 50KV R/C)

350

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

30

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Calibration of IDMT relay with secondary injection test set including cleaning servicing of contacts tightening of loose contacts testing repair etc. complete as required.

20

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Servicing of 800 to 3200 Amp ACB Complete with cleaning, alignment, adjustment of gaps between phase to phase, lubricating all moving parts adjustment for smooth mechanical operation etc complete as required.

70

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Checking & arresting at site for Oil Leakages from transformer of various ratings including (a) Dismantling of LT cable’s / Bus- Bar’s connections & dismantling of L.T. Bushing Rods. (b) Dismantling of Main Top cover / inspection window of Transformer. After draining of oil of Transformer into clean empty drums (as per requirement) c) Replacement of Cork rings set along with new Teflon rings of all phases for arresting oil leakages. d) Fixing of all terminals & Bus-bar’s connections & making adjustments. e) Replacement of cork gaskets, oil rings of inspection window side & Buckle relay side & pipe line also for arresting leakages, if any. f) Re-filling of oil into transformer & examining of leakages for improving breakdown value of oil complete as reqd.

1

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SITC of following rating four pole MCCB with operating handle and spreader terminal in the existing panel i/c inter- connection etc complete as reqd (L&T, Type DN2-250 D or SS type from make list)

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a) 400 Amps(L&T, Type DN3B-400 D or SS type from make list)

1

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b) 630 Amps(L&T, Type DN3-630 D or SS type from make list)

1

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Servicing and cleaning of 11KV / 415 Volt Dry type transformer up to 1250 KVA i/c flexible joint connection and checking temperature relay for its operation, tightening of HT/LT connection and adjustment of tripping, meggaring, high port testing, checking protection etc. complete as required.

2

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Testing of 750 KVA 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.

2

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Supply and fixing 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.

2

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Supplying and fixing 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.

2

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

5

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

1

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Blowing off dust/dirt complete HT Panel 1 no, LT Panel 1No, Capacitor panel-2 Nos., Emergency Panel 1 No. and cleaning in site and out site tightening of all loose nut, bolt etc. as required.

10

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Supply and fixing of APFC Micro processer relay with calibration, testing etc. complete as required. (8Stage-12 stage).

1

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Providing and making of wiring for existing faulty capacitor panel with required size copper wire and copper lugs testing etc complete as required.

1

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Supply and fixing of current transformer in existing 11KV HT panel having suitable CT ratio for protection and metering including testing wiring and installation in the existing H.T. panel including connections, testing and commissioning etc. complete as required as per site requirement.

1

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SITC of Super heavy duty capacitor in the existing capacitor panel suitable for working of 440 Volts AC Supply i/c removing of faulty capacitor etc complete as required. (Make : EPCOS)

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a) 5 KVAR

4

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b) 10 KVAR

4

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c) 15 KVAR

4

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d) 20 KVAR

4

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e) 25 KVAR

4

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Supply and fixing of following HRC Fuse assembly with wiring connection testing complete as required.

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a) 63 Amps

1

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b) 100 Amps

1

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c) 125 Amps

1

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Supply and fixing of 4 Pole power contactor with 1 NO, 1NC for capacitor panel with wiring connection testing complete as required.

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a) Moc - 12.5 ( for 5/6/10 KVAR capacitor )

2

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b) Moc - 15 ( for 2.5/15 KVAR Capacitor)

2

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c) Moc - 20 ( for 20 KVAR Capacitor)

2

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d) Moc - 30 ( for 20/25 KVAR Capacitor)

2

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e) Moc - 50 ( for 50 KVAR Capacitor)

2

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S.I.T.C. of Vacuum interrupter bottle suitable for existing 11KV VCB of 400A/630A (Make: Alstom/ Kirloskar/ ABB/ Areva/ Crompton/BE Make) including dismantling & removing existing faulty Vacuum interrupter per bottle, making connections & high voltage testing etc. complete as required.

3

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Supplying and making following type of cable end jointing for following size of 3 core, XLPE aluminium conductor (armored) 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)

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a) Indoor Type Joint for cable-sizes 150sq.mm. to 185 sq.mm.

2

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b) Outdoor Type Joint for cable-sizes 150sq.mm. to 185 sq.mm.

2

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c) Straight Type Joint for cable-sizes 120 sq.mm. to 150 sq.mm.

2

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Supply installation and testing of 11 KV HT VCB mechanism and testing, meggaring etc complete as required.

1

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Replacement with Installation of 11KV / 110 Volt PT (Set of three) Class 0.5 accuracy and 100 VA burden with high voltage testing for VCB Type HT Panel etc complete as required including dismantling of old defective burnout PT.

2

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Replacement with Installation of 11KV / 110 Volt PT Class 0.5 accuracy and 100 VA burden with high voltage testing for OCB Type HT Panel etc complete as required including dismantling of old defective burnout PT.

1

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Supply and fixing of LT/HT spares bottom cluster contact / LT/HT M-610 / M-16 top fix contact and testing etc. complete as required.

1

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Supply and fixing of electronic IDMT Relay with testing, complete as required. Make- L&T/ Crompton.

1

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Supply and fixing of 1000 Watt Halogen Light for arresting of moister in HT Panel with 3 core 4 sq mm cable 10 mtr aprox, wiring connection testing complete as required.

10

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Dismantling, of burnt out 11kv 110 volt P.T i/c repairing and rewinding, replacement of spout with connection, meggering, high voltage etc. complete as reuired.

1

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Supplying, Laying and fixing, testing, commissioning of following size HT cable of 11 KV grade, Aluminum conductor armored power cable etc. complete as required.

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a) 3 core 240 sq.mm

10

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b) 3 core 300 sq.mm

10

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Supply and fixing of Rack in & Rack out assembly for 630 amp to 800 amp different type 11 KV HT VCB .

1

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Supplying, installing, testing and commissioning 630A to 1000 Amp of 4 pole, 50kA, 415V, Manual draw-out type air circuit breaker of following full-load current rating, in the existing LT/MV panel i/c carrying-out required modifications in the panel, in the associated incoming/outgoing bus bars of the panel for proper mounting & connections of the ACB, also providing suitable interlocking connections, control wiring, end terminations etc. complete as reqd as per the site requirement. (Make: L&T/ABB /Siemens/Schneider)

1

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Dismantling the 1000 KVA oil type transformer from the foundation i/e dismantling of all incoming & outgoing connection, Cable, bus ducting at LT side and HT site, Earthing, opening of the Transformer Top cover, Transformer Radiator and draining of Transformer oil, shifting in Drum and shifting the Transformer at out site the Room at other site in same building and filing the same oil in the Transformer and reassembling the Transformer Radiator after shifting the Transformer at other location in same building etc. complete as reqd at TE Bldg. Mazgaon.

1

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Loading and shifting of 400 KVA Dry type Transformer from Mind Space to Mazgaon with help to chain pulley / Crain, tempo & heavy labour & unloading, placing on foundation in site the Sub station etc. complete as reqd.

1

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Modification of the existing bus duct i/c 630 Amp bus duc complete insulatin, earth bus bar, nut bolts and flexible joint box aprox 1.5 mtr. Long with tesing etc complete as required.

2

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Laying and connection of Power cable.

1

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Installation of 400 KVA Dry Type Transformer i/c. cable, bus duct including with caring out of following test a) Megger Test, b) Ratio Test, c) Resistance Test, d) Vector group test, e) Magnetic balance Test, f) Short Circuit Test, g) No load Test, h) IR Value test, etc. complete as required.

1

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Supply and fixing of 630 Amp Copper flexiable joint as per site requirement and connection testing complete as required.

4

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Less credit on account of dismantled material.

1

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