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Tender For Repair, Maintenance, Periodical Testing Of Distribution Transformer And Day To Day Maintenance, Attending Complaints / Breakdowns And Call On Repairs For 24 Hrs For Ht / Lt Cables, Ht / Lt Cable Joints Of Jetty Substations And Jetty Gallery, GE (I) (DM) VISAKHAPATNAM-Andhra Pradesh

Military Engineer Services-MES has published Tender For Repair, Maintenance, Periodical Testing Of Distribution Transformer And Day To Day Maintenance, Attending Complaints / Breakdowns And Call On Repairs For 24 Hrs For Ht / Lt Cables, Ht / Lt Cable Joints Of Jetty Substations And Jetty Gallery. Submission Date for this Tender is 30-12-2021. Distribution Transformer Tenders in GE (I) (DM) VISAKHAPATNAM Andhra Pradesh. Bidders can get complete Tender details and download the document.




Tender Notice

30144593
Corrigendum : Tender For Repair, Maintenance, Periodical Testing Of Distribution Transformer And Day To Day Maintenance, Attending Complaints / Breakdowns And Call On Repairs For 24 Hrs For Ht / Lt Cables, Ht / Lt Cable Joints Of Jetty Substations And Jetty Gallery
Open Tender
Indian
Andhra Pradesh
GE (I) (DM) VISAKHAPATNAM
30-12-2021

Tender Details

Tender For Repair, Maintenance, Periodical Testing Of Distribution Transformer And Day To Day Maintenance, Attending Complaints / Breakdowns And Call On Repairs For 24 Hrs For Ht / Lt Cables, Ht / Lt Cable Joints Of Jetty Substations And Jetty Gallery Other Misc Work.

Corrigendum Details

Sr No CorrigendumDate Corrignedum CorrigendumType NewSubmissionDate
1 23-Dec-2021 Bid Auto Extn Corrigendum Bid Auto Extn Corrigendum 30-12-2021

Key Value

Document Fees
INR 500 /-
EMD
INR 92000.0 /-
Tender Value
INR 46 Lakhs /-

BOQ Items

Name of Work: REPAIR, MAINTENANCE, PERIODICAL TESTING OF DISTRIBUTION TRANSFORMER AND DAY TO DAY MAINTENANCE, ATTENDING COMPLAINTS/BREAKDOWNS AND CALL ON REPAIRS FOR 24 HRS FOR HT/LT CABLES, HT/LT CABLE JOINTS OF JETTY SUBSTATIONS AND JETTY GALLERY OTHER MISC WORKS AT NEW DOCKYARD SUBSTATIONS AT NAVAL DOCKYARD VISAKHAPATNAM UNDER GE (I) (DM) VISAKHAPATNAM
Sl. No. Item Description
1M & L for filtration/dehydration transformer oil of transformer voltage grade 11/0.415 KV, capacity upto 3000 KVA indoor/outdoor type, floor mounted in situ till achieve dielectric strength minimum 40 KV at 4mm gap complete all as specified and as directed.
2M & L for filtration/dehydration transformer oil of Servo Voltage stabilizer, voltage grade 415V of any capacity indoor type, floor mounted in situ till achieve dielectric strength min 40 KV at 4mm gap complete all as specified and as directed.
3M & L for topping up/replacement of transformer oil with new transformer oil suitable for working voltage 11000 volts grade including necessary dehydration to achieve dielectric strength min 40 KV at 4mm gap complete all as specified and as directed. Make – GULF/Castrol/ HP /IOC /Savita /Power. Note for serial item No 1 to 3 :- (a) New transformer oil to be bought in company sealed ISI marked container with test certificate (b) Filtration /dehydration of transformer oil shall be carried out at the location where transformer is installed and required pipe connection from filter machine to transformer shall be made and rate shall be inclusive of quoted rate. (c) Necessary filter/dehydration plant having pressure gauge, hour meter, temperaturature gauge to be brought at site by contractor and to be kept permanently inside ND (V) till completion of work andrate deemed to be included in the quoted rate. In any condition, in-out of the filter machine during the progress of the work will not be allowed. (d) Transformer oil test report before and after dehydration/filtration shall be submitted duly authenticated by authorised person .
4M&L for chemical test of transformer oil of each transformer by taking out at 2.0 ltr container and transporting to APTRANCO LAB at Vijaywada or Visakhapatnam including submission of test report complete all as specified and as directed. (Note: Cost of container & transportation & lab test shall be inclusive of the quoted rate)
5M&L for testing of transformer 500 KVA to 3000 KVA, 11/0.415 KV at various location by following test for HV & LV complete all as specified and as directed. (a) Insulation Resistance (b) Winding resistance (c) Turn ratio (d) Magnetic balance, (e) Oil BD value Note: Required testing equipment for transformer test shall be brought by the contractor and rate shall be inclusive of quoted rate
6M&L for openning of top cover in situ or at wksp by unscrewing all nuts, bolts & washers, drainingout transformer oil upto required level and keeping in clean container for repair/replacement of HT/LT bushings,tap changer, physical check of any defects, for lifting of core assy, for cleanning/repair and refixing top cover complete with RC 70 C rubberised cork sheet gusket sheet , existing/new nuts, bolts & washers for transformer indoor/outdoor type, refilling of oil for transformer capacity 500 KVA to 750 KVA complete all as specified and as directed. Note:- (a) HT/LT bushings, Studs, tap changers, nuts, bolts & washers required new shall be mesured separately here-in-after (b) Silicon oil proof gusket shall be inclusive of quoted rate)
7All as per item No 6.00 above but for transformer capacity 1000 KVA to 1600 KVA, 11/0.415 KV
8All as per item No 6.00 above but for transformer capacity 2000 KVA to 3000 KVA, 11/0.415 KV
9M & L for replacement of silicagel grains in the breather assembly of transformer complete all as specified and directed.
10M & L for replacement of breather assembly made with polycarbonate base and clear acylic glass of size to accommodate 1.0 kg of Silicagel for transformer complete all as specified and directed.
11M & L for replacement of transformer temperature gauge dial type having temp range 0 to minimum 120 degree celsiuscomplete all as specified and as directed.
12M & L for replacement of transformer explosion vent gasket complete all as specified and as directed.
13M&L for dismantling of HT/LT porcelain insulator after dismantling cables at outside & transformer terminal at inside of transformer for rectification of oil leakage through insulator or for replacement of insulator or for replacement of brass stud by taking out unsv gusket from inside & outside bushing and replacement with RC 70 C rubberised cork sheet gusket of proper thickness, reassemble old/new insulator, brass stud, HT/LT cable connection, HT/LT transformer inside terminal connectionto original position complete all as specified and as directed. Note:(a) Opening of top cover measured separately (b) porcelain insulator HT/LT & Brush stud with nuts & bolts required new shall be measured as supply only. (c) Silicon sheet gusket shall be inclusive of quoted rate.)
14Supply only transformer porcelain bushing outdoor/indoor type suitable for 11 KV grade complete of transformer capacity 500KVA to 3000 KVA, 11/0.415 KV transformer complete all as specified and as directed. (Transformer bushings shall be compitable model with make and model of existing transformer)
15Supply only transformer porcelain bushing outdoor/indoor type suitable for 1100 volts grade complete of transformer capacity 500KVA to 750 KVA, 11/0.415 KV transformer complete all as specified and as directed. (Transformer bushings shall be compitable model with make and model of existing transformer)
16All as per item No 15.00 above but for transformer capacity 1000-1600 KVA,
17All as per item No 15.00 above but for transformer capacity 2000-3000 KVA,
18Supply only brass stud with accessories suitable for HT 11000 volts grade insulator with con & rubber washer, double Brass nuts & brass washer at both end of stud for Tr cap 500-3000 KVA complete all as specified and as directed.
19Supply only brass stud suitable for LT 1100 volts grade insulator with con & rubber washer, double Brass nuts & brass washer at both end of stud for Tr cap 500-750 KVA complete all as specified and as directed.
20All as per item Ser No 19.00 above but for Tr 1000-1600 KVA
21All as per item Ser No-19.00 above but for Tr 2000-3000 KVA
22Taking out manually repairable/serviceable transformer of capacity 500-2000 KVA from its position upto road n. exc 50 mtr and transportation by vehicle to other location n. exc 2 KM inside Dockyard including all cable/earth connections complete all as specified and as directed. Note: a) Rates for dismantling ofHT/LT cable & earthing and reconnection after installation deemed to be included in the quoted rate, (b) Necessary crane for lifting of transformer and vehicle for transportation shall be arranged by the contractor and deemed to be included in the quoted rate )
23Taking out manually defective transformer of capacity 500-3000 KVA from its position upto road n. exc 50 mtr and transportation by vehicle to workshop n. exc 25 KM and reinstallation at original position after repair including all cable/earth connections all as specified and directed. (Note: a) Rates for dismentling ofHT/LT cable & earthing and reconnection after installation deemed to be included in the quoted rate, (b) Necessary crane for lifting of transformer and vehicle for transportation shall be arranged by the contractor and deemed to be included in the quoted rate )
24M & L for core & chamber cleaning by lifting up carefully transformer core after dismentling carefully terminal connections from core to HT/LT bushings, tap changer assy,drainout all oil and keeping in clean container, flushing with transformer oil for cleaning of core/winding, cleaning of transformer tank by removing all sludges, re-install core with tapchanger, all connection complete all as specified and directed for the transformer 500 to 3000 KVA, 11/0.415 KV transformer. Note:- (a) Opening of top cover, nuts, bolts & washers, HT/LT busings, brash rods, de-hydration/topping up of oil as required, shall be measured separately under appropriate item. (b) The work shall be carried out inside dockyard. (c) Transformer oil used for flushing shall be retained and re-used vide item No-1, (d) Empty transformer oil containers shall be arranged by the contractor and inclusive of quoted rate.
25M & L for rewinding of HV/LV coil after lifting up carefully transformer core after dismantling carefully terminal connectionsfrom winding totap changer assy and to HT/LT bushings, drainout all oil and keeping in clean container, dismantling core, dismantling all HT & LT coils from core for rewinding, testing and reassembling complete with HT/LT coils to core, required necessary numax paper insulation, insulating press board, precompressed board off sizes, varnishing, heating to achieve insulation level not less than 1000 megaohms at both HT & LT side, core at transformer chamber, tap changer assy, terminal connection, refilling of oil complete for the transformer capacity 500 to 3000 KVA, 11/0.415 KV transformer. (Note:- Opening of top cover, Rewinding of HT/LT coils,transformer oil, nuts, bolts & washers, HT/LT busings, required new mesured separately under appropriate item)
26M&L for rewinding of HT coils suitable for 11000 volts grade with new DPC/super enamelled copper wire having Class-F insulation as per existing size and turns for capacity of transformer 200-3000 KVA complete all as specified and as directed.
27M&L for rewinding of LT coils suitable for 1100 volts grade with new DPC /super enamelled copper strip having Class-F insulation as per existing size and turns for capacity of transformer 200-3000 KVA complete all as specified and as directed.
28M&L for rewinding of LT coils suitable for 1100 volts grade with existing DPC /super enamelled copper strip having Class-F insulation as per existingturns for capacity of transformer 200-3000 KVA complete all as specified and as directed.
29M&L for replacement of off load Tap changer assy including rotating wheel having 7 position of transformer including dismantling and taking out old unserviceable one and dismantling all winding terminal connections and reconnection after replacement complete upto transformer cap 3000 KVA 11/0.415 KV. complete all as specified and as directed.
30M&L for replacement of winding temperature meter and oil temperature meter dial type including connection cable from transformer and buchholz relaycomplete all as specified and as directed.
31M&L for dismantling and taking out buchholz relay, overhauling, servicing, cleaning and refixing to transformer original position and testing for proper functioning including complete connection with temperature sensor cable and electric connection complete all as specified and as directed.
32Periodical servicing of complete transformer at every alternate 3 month by cleaning of complete outside surface, observing any oil leakage from any point, rectify by replacing with suitable RC 70 C rubberised cork sheet gusket to keep the complete outside surface dry complete all as specified and as directed. Note- (i) replacement of silicon gusket other than at top cover and bushings shall be carried out and rate shall be inclusive of quoted rate. (ii) rectification of leakage from top cover and from bushing shall be measured and paid separately in the schedule (iii) Works under warranty period will not be measured in repitation)
33M&L for complete painting of transformer outer surface in situ/wksp with one coat of synthetic enamel paint using sprayer for transformer capacity 500-1600 KVA after preliminary preparation of old painted surface complete all as specified and as directed. Note : (i) During process of painting, transformer will be under shut down for the period and the rate deemed to be included for running the sprayer machine with alternative arrangement by contractor. (ii) After completion of painting HT/LT outdoor bushing, cable termination joint, Oil inspection glass, meters and name plates to be made clean using volatile cleanner)
34M&L for cleaning & painting of HV terminal box by dismantling of HT 3 core cable connection from transformer HT 11 KV side, cleaning & painting with one coat of synthetic enamel paint of complete HT cable box inside, cleaning of HT cable kit with suitable cleaning agent, Checking for any loose cable end terminals and replace as necessary and crimping with suitable tools, refixing to transformer, sealing of space between cable and cable box hole using suitable packing material, connection of cable earth terminal to specified point incl testing complete all as specified and as directed.
35M&L for cleaning & painting of LV terminal box by dismantling of LT 4 core cable connection from transformer LV side, cleaning & painting with one coat of synthetic enamel paint of complete LV cable box inside, cleaning of all LV cable kit with suitable cleaning agent, Checking for any loose cable end terminals and replace as necessary and crimping with suitable tools, refixing to transformer, sealing of space between cable and cable box hole using suitable media, connection of cable earth terminal to specified point including fixing of required copper strip for LT cable connection testing complete all as specified and as directed.(Copper strip shall be measured as supply only)
36S&F Cable joining kit for 11 KV (Earthed) grade cable for straight through heat shrink type joint complete with joining material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 240sqmm to 400 including dismentling / taking down unserviceable one complete all as specified and as directed.
37M&L for writing letter of size 40mm x 40mm on transformer body /LT panel board using black synthetic enamel paint complete all as specified and as directed.
38Weekly cleaning of entire substation building inside wall, ceiling, floorand outside wall, plith protection with suitable brush / broom & cleaning of floor with wiper & cleaning liquid, removing wild vegitation around substation complete all as specified and as directed. (Note: recovery shall be made double the quoted rate if timely cleaning is not carried out) SS Name-Wksp, Wharf, 21, 07, 07 Extn, 08, 11, 11 Extn, 10 Berth, 25. (Each substation measured as one Job)
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