Latest load tap changer Tenders | Government load tap changer Tenders

Central Government/Public Sector

CTN :45486804

29 Jun, 2026 NA

Multi City - Multi State

Tender For supply of breather/air dehumidifier for 7775/6531 kva main transformer of 3 phase locomotive, technical data-em3 ma and abb id no. hstn 422029 p0001. material to be procured fromsupplier to oem of 7775/6531 kva main transformer with recent purchase proof of same item/supplier to clw or other railway with recent purchase proof of same item [ warranty period: 30 months after the date of delivery ] ]

Central Government/Public Sector

CTN :45487163

30 Jun, 2026 NA

Ajmer - Rajasthan

Tender For supply of 9 kva, 750v/415v/190v ac 3-phase, star star star (yyy), dry type & air cooled, powr distribuation transformer (type-i), suitable for use in lhb type non ac eog coaches, as per rdso specification no. rdso/pe/spec/tl/0158-2010 rev(rev-nil). [ warranty period: 30 months after the date of delivery ][quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted:max 8 lacs ] ]

CTN :45505510

01 Jul, 2026 81.75 Lacs

Mehsana - Gujarat

Tender For research based pilot project [dynamic feeder voltage manager (dfvm)] for turnkey based work of design, development, supply, installation, testing & commissioning of 3-ph, 50 hz, 4000 kva, 12/12kv outdoor onan auto/power transformers equipped with on-load tap changer (oltc) with necessary infrastructure and protections, master controller and around 100 modems, control circuits with comprehensive maintenance contract for 05 (five years) after handing over the project

CTN :45488631

23 Jun, 2026 NA

Dharmapuri - Tamil Nadu

Tender For purchase of linear variable differential transformer measurement trainer lab equipment for eee department - item name, 3 phase auto transformer starterinput voltage:230 v ac /50 hzlcd display ,digital voltmeter

CTN :45486868

29 Jun, 2026 NA

Kanchrapara - West Bengal

Tender For supply of main transformer, type-lot 1250 for medha propelled 3-phase emu/memu motor coach with conservator, oil, cooling system,circulating pump, elastimold, bushings and accessories. power: 1250 kva, make-abb, type- memu, 1lytaav00, 1250 kva (625 x 2 kva) under 855 v to rdso specn. no. rdso/pe/spec/emu/0163 (rev. 3)- 2022 with addendum/corrigendum no.1 to 4 or latest[quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]

CTN :45479514

25 Jun, 2026 NA

Kharagpur - West Bengal

Tender For distribution transformer of rating 250 kva, 11kv/415v-240v, 3-phase, 50hz, outdoor type, plinth mounted, the type of tap changer: off-load tap changer for variation of hv voltage from +5% to -10% in steps of 2.5%, energy efficiency level 3 or better, oil immersed, non-sealed type (transformer tank body and cover are bolted), copper wound, primary winding in delta and secondary winding in star (vector symbol- dyn11), onan cooled transformer, conforming to is 1180 (part 1):2014 with amendment nos. 1,2,3,4 or latest, and supplied with all standard fittings mentioned in clause 20.1 of is 1180 (part 1) latest withcondition that drain-cum-sampling valve will be applicable for all capacity of transformers. oil temperature indicator & winding temperature indicators will be provided as per clause 20.2 f) of is 1180 (part 1). terminal arrangement: the transformers shall be fitted on high voltage and low voltage sides with outdoor type bushings of appropriate voltage and current ratings. the high voltage bushings (3 nos.) shall conform to is/iec 60137. the low voltage bushings (4 nos.) shall conform to is 7421. suitable cable-end box along with cable entry hole glands is to be provided at l.t. side. following has to be submitted by supplier along with supply of material: (i) type test report of transformer having same rating, make (& model if any) and design from nabl accredited lab as per is: 1180 (part 1) latest. (ii) routine test certificates as per is: 1180 (part 1) latest. (iii) special test certificates as per clause 21.4 sl. no. (a), (c), (d) & (e) of is: 1180 (part 1) latest. detailed specification attached as annexure a. [ warranty period: 30 months after the date of delivery ]]

CTN :45112925

11 Jun, 2026 NA

Shimla - Himachal Pradesh

Tender For bid to ras tender for supply of disconnecting ht and lt supply taking down the defective transformer indoor outdoor type from four pole two pole structure or lifting from the outdoor type foundation or taking out from sub station bldg using a crane of suitable capacity and slings ropes etc as required and shifting the same to civil workshop for repairs complete all as directed for transformer capacity 400 kva , shifting back the repaired transformer indoor outdoor type from civil workshop to site reinstalling at original position and fixing properly on four pole two pole structure or outdoor type foundation or inside a sub station bldg using a crane of suitable capacity and slings ropes etc as required making ht lt side connections and testing for satisfactorily working complete all as directed for transformer of capacity 400 kva , draining out transformer oil from the transformer and storing the same in suitable containers to be arranged by contractor without any extra cost opening the top cover and lifting up the core assembly carefully to check the condition of transformer windings and core retanking the same after repairing checking of leakage from transformer body and repairing welding works required for making transformer body leak proof refilling the transformer oil dully dehydrated and filtered dehydration and filteration to be paid separately and making all connections with ht lt side bushings refixing the top cover and testing the transformer with a suitable capacity insulation tester complete all as directed for transformer of cap 400 kva , m and l for rewinding of burnt out defective ht copper coils with new super enamelled heavy duty copper winding wires of size matching to the existing one including varnishing drying in a suitable oven and all insulating material such as cotton sleeves tapes etc and connections with bushing terminals complete all as specified and directed , all as per item no 4 above but lt copper coils complete all as specified and directed , m and l for painting the transformer tank from inside with two coats of zinc chromite after preparing the tank walls bottom top cover inner side by properly cleaning the surfaces oil free complete all as directed for transformer capacity 400 kva , m and l for replacement of defective ht porcelain bushing of suitable size for transformer of cap 400 kva including washers of good quality complete all as specified and directed , m and l for replacement of defective lt porcelain bushing of suitable size for transformer of cap 400 kva including washers of good quality complete all as specified and directed , dehydration and filteration of transformer oil for indoor outdoor type transformers of any capacity at site using transformer oil filteration plant to improve di electric strength not less than 45 kv at 2 point 5 mm electrode gap complete all as directed note unit rate quoted shall be deemed to include the charges for hiring of oil filteration plant shifting to different locations at cantt area testing of samples of oil as per requirement and nothing extra will be paid on this account , s and f new transformer oil for replacement or topping up the level of oil having dielectric strength not less than 45 complete all as specified and directed

Central Government And Public Sector

CTN :45486967

07 Jul, 2026 NA

Bhilai - Chhattisgarh

Tender For supply of oil level indicator of transformer as per abb document no-hstn 420277p0015 . [ warranty period: 30 months after the date of delivery ][quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]

CTN :45470987

29 Jun, 2026 NA

Jamshedpur - Jharkhand

Tender For supply & testing of 500 kva, 11kv/750v, 3-phase, 50 hz. outdoor type power transformer conforming to 15 2026 (part 1): 2011 (reaffirmed 2021), plinth mounted, copper wound, mineral oil immersed with freely breathing system (also called conservator system) as per clause 8.2 (a) of is 2026 (part 1), primary winding in delta and secondary winding in star (vector symbol-dyn11), onan cooled transformer, minimum short circuit impedance of 5% as per is 2026 (part 5), with all fittings specified in annexure a to this description, terminal arrangement: the transformers shall be fitted on high voltage and low voltage sides with outdoor type bushings of appropriate voltage and current ratings. the high voltage bushings (3 nos.) shall confirm to is/iec 60137. the low voltage bushings (4) nos.) shall conform to 15.7421. suitable cable-end box is to be provided as follows: a) for outdoor type: l.t. side tap changer: on-load tap changerfor variation of hv voltage from -+5% to -5% in steps of 1.25% make- andrew yule/aeg/crompton greaves/kirloskar electric co./abb/siemens/schneider or similar. [ warranty period: 30 months after the date of delivery ] ]

Central Government/Public Sector

CTN :45487243

14 Jul, 2026 NA

Jodhpur - Rajasthan

Tender For supply of set of brackets for 15/9 kva transformer mounting on under frame for lhb eog coaches consisting of the following : (1) icf drg. no. lwscwaceog 71003 alt. a col i = 2 nos. (2) icf drg. no.lwscwaceog 71003 alt. a col ii= 2 nos. (3) icf drg. no.lwscwaceog 71003 alt. a col iii = 4 nos. (item 9 & 10) [ warranty period: 30 months after the date of delivery ] ]

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