Tamil Nadu Generation And Distribution Corporation Limited Tender

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Tamil Nadu Generation And Distribution Corporation Limited - TANGEDCO Tender

Works
Electrical and Electronics
Eprocure
Opening Date3 May 2025
Closing Soon16 May 2025
Tender AmountRefer Documents 
Notes
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Costs

Summary

Nctps I Es Circle Em I Dn S Dn I Replacement Of 6 Nos Defective 245 Kv Sf6 Breaker Pole Assembly 3 Nos Existing 245kv Capacitor Voltage Transformer (cvt) 3 Nos Existing 245kv Current Transformer (ct) 3 Nos Isolators 24nos Existing Las In 230 K

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BOQ Items

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Erection of new 230KV SF6 Breaker and its accessories on the structure (3Nos = 1 set)

6

12512

75075

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Crane hire charges

72

800

57600

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II.Replacement of 3 nos existing 245KV Capacitor Voltage Transformer (CVT) at 230 KV Indoor Switchyard in NCTPS-I. Dismantling of existing 230KV CVT from the structure

3

2252

6756.75

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Erection of new 230KV CVT in the structure

3

4504

13513.5

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Welding charges for Existing earth connection released and alteration of New CVT earthing connection.

3

3696

11088

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Releasing moose ACSR conductor between CVT to wave trap and kundah conductor between CVT to line conductor.

3

1384

4154.700000000001

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Providing moose ACSR conductor between CVT to wave trap and kundah conductor between CVT to line conductor and fixing of new healthy clamps.

3

2769

8309.400000000001

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Welding charges for alternation of CVTs Existing bed frames

3

3696

11088

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Crane hire charges

36

800

28800

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III .Replacement of 3 Nos existing 245KV Current Transformer (CT) at 230KV Indoor Switchyard in NCTPS-I. Transporting of new 245KV current transformer and its accessories from Central stores to 230KV outdoor Switchyard. (3 Nos=1set)

3

5005

15015

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Removal of moose conductor connection from Tower end

9

5604

50440.5

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Dismantling of existing 245KV Current transformer from the structure. (3 Nos=1 set)

3

3753

11261.25

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Erection of new 245KV Current transformer and its accessories on the structure (3 Nos=1set)

3

7507

22522.5

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Restoration of moose conductor at tower connections no 1 end jumper.

9

6067

54608.4

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Welding charges for alteration of Current transformers earthing connection (3 Nos = 1set)

3

2464

7392

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Reconnecting the dropper jumper between main buses after replacing the existing old conductor by new jumper, which involves taking measurement, cutting new conductor for required length, cleaning the new jumper, PG clamp & connecting PG clamp to new jumper and tightness checking in Indoor switchyard. (Replacement of pedestal CT)

3

14490

43470.899999999994

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Crane Hire charges

36

800

28800

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IV. Replacement of 3 Nos Isolators at NCTPS-I. Releasing the isolator blade, top support insulator in switchyard

3

3410

10230

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Replacement of damaged PT insulators in ‘B’ isolator of Y phase of Bus section CT (Replacement of damaged PT insulators)

3

9204

27614.399999999998

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Replacement of 24 nos existing LAS due to ageing and obsolescence in 8 Nos feeders of 230 KV switchyard at NCTPS-I. Assembling of new LAS stack one by one and reconnect the jumper connection and assisting with MRT testing.

24

7108

170596.8

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Removal Reconnecting of moose connection from Tower end

48

5604

269016

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Crane Hire charges

192

800

153600

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Cleaning and tightness checking in Power Transformers, Fixed and moving contacts in 230KV switchyard, main bus/ Transfer bus, LAS, Neutral grounding transformers in NCTPS-I. Routine cleaning, tightness, checking and assisting in MRT testing works and attending glow, changing the defective clamps if any, finger contacts and moving contacts, etc, in 230KV SF6 breakers, Isolators, LAS, CVT, CCm wave trappers for quarterly maintenance.

24

5187

124502.40000000001

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Cleaning, tightness, checking and assisting in MRT testing works in 230KV main bus / Transfer bus, bus section SF6 breakers and isolators.

12

9913

118958.40000000001

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Cleaning and tightness checking of 3 nos HV bushings and 6 Nos LV Bushings (52/25MVA station transformer)

21

3289

69069

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Cleaning of Earth resistors and neutral grounding transformers, assisting in measuring the value of resistors and meggering of neutral grounding transformer testing of tan-delta value of transformer bushing and HV testing of LAS (50/16MVA Power Transformer)

9

10280

92525.40000000001

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Cleaning and tightness checking of 3 nos lightening arrestors and 3 nos pedestal support insulators and its jumpers connection clamps tightness checking work station transformer (250/50 MVA station Transformer)

21

5920

124324.2

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T&P Consumables

1

45799

45799



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