Tamil Nadu Generation And Distribution Corporation Limited Tender

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Tamil Nadu Generation And Distribution Corporation Limited - TANGEDCO Tender

Electrical Generators And Transformers
Electrical and Electronics
Electrical Works
Eprocure
Opening Date8 May 2023
Closing Date24 May 2023
Tender Amount₹ 1,33,493 
This is an estimated amount, exact amount may vary.
Notes
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Documents
TTPS ES Circle EM I Annual Maintenance of Transformers and Generator Bus duct in Unit II during the Annual overhauling for the year 2023 24
TTPS ES Circle EM I Annual Maintenance of Transformers and Generator Bus duct in Unit II during the Annual overhauling for the year 2023 24
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UAT IIA & UAT IIB Opening the manholes in UAT 2A & 2B, disconnection of primary links at both transformers, cleaning the primary terminal bushings. Opening the LV chamber of UAT 2A & 2B, Cleaning the LV Bushings and bus bars, Tightness checking of LV side cables, After completion of work closing the LV chamber. Assisting during testing. Restoration after completion of the works.

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UST-II and SST-II Opening the HV side adopter box cover of the transformer, terminal tightness checking,and cleaning changing of the gasket for top cover and closing. Tightness checking at LV side cables, arrestting of oil leaks if any, assisting for meggering and Buchholz relay testing, external cleaning. Restoration after completion of the works.

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Excitation transformer Disconnection of the bus links from HV/LV side, cleaning the transformer, assisting for testing and meggering, LV side cable tightness checking. Restoration of the links after completion of the works.

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BUS DUCT ( Phase side) Opening the manhole in the phase side bus duct and disconnection of the horizontal bus bars in all the three phases. Assisting for testing, meggering. Restoration of the bus bar links after completion of the works and closing the manholes.

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BUS DUCT (Neutral side) Opening the manhole in neutral bus duct and disconnection of the vertical bus bars for all the three phases and cleaning. Assisting for testing, meggering. Restoration of the links and closing of the man holes after completion of the works.

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Bus duct man hole opening at all the phases, cleaning of the buses from Generator Phase side to Generator transformer both out side and inside, tightness checking of all the joints, cleaning of the supporting insulators, LAVT Cubicles assisting for testing and meggering. Restoration of covers after completion of the works.

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Cleaning and tightness checking of LAVT cubicles, bus bars, dismantling of 3 Nos. 18 KV lightning arrestors from LAVT cubicle Transporting to MRT Lab for testing &restoration after testing.

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Cleaning of the Generator Transformer bushings of R, Y & B Phases and other supporting insulators, lightning arrestors and checking of oil leaks, cleaning of the top surface of the transformers, tightness checking of the jumper joints

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Charges for maintenance works in 250 MVA Three phase Generator Transformer R,Y and B Phases: Opening of LV turret covers in Generator transformers R,Y and B phases, disconection of flexible links in 24 kv busduct to GT LV side, cleaning the transformer, meggering, toppingup of oil if needed and assisting for testing of bucholz relay,surge relay and PRV, restoration of LV side links after completion of works.

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Labour charges for H2 gas Regenerative type drier cleaning both A & B chamber internal cleaning ,gasket changing work.

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Charges for cleaning of Generator Transformer & its radiators, UAT2A, UAT 2B & its radiators,UST-II and SST-II with sodakaram and water during completion of overhauling works.

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