Delhi Jal Board-DJB has published Servicing / Overhauling Of Ngef Make 2 Nos . Transformers At Dakshinpuri Bps .. Submission Date for this Tender is 09-07-2020. Seals Tenders in EXECUTIVE ENGINEER (EM) WS SOUTH-I Delhi. Bidders can get complete Tender details and download the document.
Name of Work: Servicing/ overhauling of NGEF make 2 nos. 500 KVA transformers at Dakshinpuri BPS. | |||||
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Sl. No. | Item Description | Item Code / Make | Quantity | Units | |
1 | 1.01 | Repairing/ overhauling of NGEF make 500 KVA transformers Type: ONTU500/11 HV volts, Volts at HV 11000, Volts at LV 433, Amperes at HV 28.26, Amperes at LV 688.60, Type of cooling: ONAN with following work:\n Disconnection of11KV HT supply from main panel, reck out the OCB from the transformer panel & open the back side panel and discharge the complete supply.\n | item1 | 2 | Jobs. |
2 | 2 | Drain out the oil by vacuum machine in empty oil drum, cleaning the tank by removing the dirty particle from the transformer tank & dry the transformer coil and core by oil steam. | item2 | 2 | Jobs. |
3 | 2.99 | P/F of top cover gasket i/c finger gasket, buckles joint gasket, silica gel, oil seal HV & LV side & hardware item such as nut bolt washer etc as required. | item3 | 2 | Jobs. |
4 | 3.98 | Repairing the tap changer & proper soldering of lead at the tap changer. | item4 | 2 | Jobs. |
5 | 4.97 | Testing & calibration of BUCKLAZ relay WTI &OTI meters with connection of sensors. | item5 | 2 | Jobs. |
6 | 5.96 | Complete cleaning and chemically washing of oily and muddy transformer body & painting with enamel paints. | item6 | 2 | Jobs. |
7 | 6.95 | Dehydration & filtration of transformer oil & testing the di electrical strength up to 50 KV at gap 2.5 mm for 1 minute. | item7 | 900 | Ltr. |
8 | 7.94 | Supply and filling the new transformer oil. | item8 | 210 | Ltr. |
9 | 8.93 | Testing & commissioning of transformer after complete assembling, testing the HV &LV connections, taking out the result as IR value, magnetic balance, TTR & magnetic current of winding with HI pot machine. | item9 | 2 | Jobs. |
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