Tender For Special Repair For Replacement Of Ber/ Vintage Transformers (05 Nos) Alongwith Connected Items At N Area And Hallomajra Under Ge Chandigarh.
Tender Value
1.46 Crore
Estimated cost
Bid Submission
10 Oct 2026
7 days left
EMD
2.21 Lakhs
Bank guarantee accepted
Document Fee
1000
Non-refundable
Tender Type
Online
Tender Overview
Organization
Tender ID
Competition Type
NCB
Bidding Type
Tender
Location / State
Chandigarh → Chandigarh
EMD Exemption
Not Available
Quantity
Not Available
Website
Contact Person
Address
Project Description
Tender for Special Repair For Replacement Of Ber/ Vintage Transformers (05 Nos) Alongwith Connected Items At N Area And Hallomajra Under Ge Chandigarh.
BOQ
| Sl. No. | Item Description |
| 1 | Taking out of transformers of capacity 50 KVA to 200 KVA carefully from two pole/ four pole structure and deposit in in MES store yard complete all as specified and as dierected by Engineer-in-Charge. |
| 2 | Taking out/ down carefully old/ unserviceable HT UG cable of any type/ size from trenches/ pole/ duct after disconnecting from Pole/ busbar box fixed on pole, removing cable protection PCC covers/ bricks & stacking serviceable covers/ bricks for reuse complete all as specified and as directed by Engineer-in-charge. |
| 3 | Dismantling air break gang operated switches, vertical/ horizontal mounted including insulators and operating mechanism for repair/ replacement of broken/ worn out components and insulators etc. or carrying to MES store complete all as specified and as directed by Engineer-in-Charge. |
| 4 | Supply, installation, testing and commissioning of 200 KVA outdoor transformer, level 3, floor mounted, 11 KV on HT side and 433 volts on LT side at no load step down DYN 11, 3 phase, 50 c/s, AC, double copper wound, oil immersed, naturally cooled with external cooling tubes core type. Transformer with off load tapping on HT side to vary secondary voltage +- 7.5% in steps of +-2.5 %. The transformer shall conform to Level-3, IS-1180: 2014, oil shall conform to IS-335. The temp rise shall not exceed 40 degeree centigrade (when measured by resistance method) for winding and 35 degree centigrade (meaured by thermometer) for top oil when tested in accordance with IS 2026 Para (2), copper wound, (losses shall be as per 2014 ammended up to date) transformer to be got tested from NABL approved Lab complete all as specified and directed. The transformer shall include the following:- |
| 5 | Contd..(a) HV Bushing of suitable size.(b) LV glands and cable box of suitable size.(c) Oil conservator.(d) Dehydrating breather with first fill of dehydrating agent.(e) Thermometer pocket with thermometer dial of suitable size.(f) Two Earthing terminals on tank and take cover with lugs to suit 32 x 6 mm GI strip.(g) Rating Plate.(h) Terminal marking plate.(i) Oil level gauge.(j) Oil drain and filter valve.(k) Lifting lugs(l) Four plain rollers.(m) Oil filter plug with connection complete.(n) Extra bushing for neutral outside the cable box for providing independent earthing.(o) Oil filling hole with cap.(p) First filling of oil.(q) One cable box on LV side with one cable gland suitable for reception of 01 No upp to 3.5 core 400 sqmm LT cable. |
| 6 | All as per Srl item No. 4.00 here-in-before but of capacity 160 KVA , complete all as specified and as directed. |
| 7 | All as per Srl item No. 4.00 here-in-before but of capacity 100 KVA , complete all as specified and as directed. |
| 8 | Supply of 11KV Extensible Outdoor duty (IP 55 enclosure) SF6 gas insulated 4-way motor operated Ring Main Unit comprising of 2 nos. 630 Amps Vacuum Circuit Breaker as incomer and 2nos. 630 AmpsVacuum Circuit Breaker as outgoing , cable termination from the front, breaking capacity 21KA/3sec (Internal Arc Classification AFLR 21kA-1sec with Bottom Exhaust both for tank and cable box as per IEC 62271-200), enclosed in insulated welded stainless steel tank having IP67 Degree of Protection, leak rate of SF6 gas less than 0.1% and tested as per IEC 60056/60694/60298. Protection CTs shall be ring core type, complete all as specified and directed. The outer enclosure shall have IP 55 protection, it should be Top Opening Canopy type, Indoor RMU placed inside Outdoor Enclosure should not be acceptable. Both the Load break switch and Breaker should have line side earth switch. Both incomer should be electrically & mechanically interlock complete all as specified and as directed by Engineer-in-Charge.Make of RMU : SIEMENS (8DJH-ST)/ SCHNEIDER (FBX)/ ABB (SafePlus-XT). |
| 9 | Contd.(A) NOTE:- Other details:- System Particulars: (i) Nominal System Voltage : 11kV. (ii) Voltage variation on supply side : ±10 %. (iii) Corresponding Highest System Voltage: 12kV.(iv) Frequency : 50 Hz with ± 3 % tolerance. (v) Number of Phase : 3 Phases. (vi) Neutral earthling : Solidly earthed. (vii) Fault level (minimum) kA /Sec : 25/1). (viii) Lightning Impulse Withstand Voltage (kVp) : 75 (ix) One minute dry/wet power frequency withstand voltage primary (kV rms) : 28KV(x) Rated Dynamic Withstand Current (kAp) : 52.5KA. |
| 10 | (xi) Number of Short Circuit Operations at rated short circuit currentof 25 kA for Breaker - 50 Nos.(xii) Earth switch should have 5 closing operation at short circuit current (making operations E2 class) independent of breaker. Earth switch manual closing shall be driven by a fast acting / snap action mechanism, independent of operator and VCB action. (xiii) Side and rear cable ntry is not acceptable, all operation, interlock, cable terminations and door shall be front side only. |
| 11 | (B) Applicable Standards for this RMU scope of work - IEC 62271-200. (i) The Ring Main Units shall confirm to the latest applicable, IEC 62271-100, IEC 62271-200.(ii) All live parts, bus bars, shall preferably be enclosed in non- magnetic and non-ferrite grade stainless steel tank Grade SS441 of minimum 2 mm thickness. The RMU shall be type tested for internal arc test of 21KA/1 sec AFLR with Bottom Exhaust for Safety of Personnel for both Tank as well as Cable Compartment as per IEC62271-200. The outer enclosure shall have IP 55 protection for complete switchgears, however it should be Top Opening Canopy & Indoor RMU placed inside Outdoor Enclosure should not be acceptable. The protection relay shall be for 3 O/C + 1E/F (IDMT Type) Self powered numerical protection relay with low and high set of over current and earth fault , MODBUS communication along with RS 485 Port / USB Port. |
| 12 | Contd.(iii) Internal Arc Classification should be with Bottom exhaust only. RMUs should be manufactured, inspected, and invoiced from the OEM factory. (iv) Wireless Temperature & climaticsensor should be provided, Thermal Sensors to be mounted in Cable chamber on each function on cable termination and one number of wireless climatic sensor to be mounted on RMU at suitable location to monitor temperature and humidity data on HMI though PLC. (v) 1 set of surge arrester fix in outgoing way.(vi) VCB, Numerical Relay, HMI, FRTU and Thermal / climatic sensor should be of same make for better functioning, maintenance, and coordination. (C) Air Insulated Bus Connected Unit comprising the following, (1) Air Insulated |
| 13 | Supply, installation, testing and commissioning of 11 KV 630 Amp switch disconnector, outdoor panel for protection of various transformers. The switch shall use low pressure SF6 gas for current interruption and shall require no maintenance. Leakage rate shall not be over 0.1% per year, for life span of at least 30 years.It shall have three positions (closed, open and earthed). The switching device shall be suitable for three-phase systems operating at 12 kV and 50/60 Hz. The rated voltage shall be at least 12 kV. The short-time withstand current shall be 25 kA - 1 s / 12 kV. LBS Make Schneider/ Dvepl/ LK. LBS panel should be provided with fuse trip assembly and HRC fuses of appropriate rating for protection of ransformers. |
| 14 | Contd.The operating mechanism should have following functions. a. Switch function:- Independent-operation closing by lever. Operating energy is provided by a compressed spring which, when released, causes the contacts to close. independent-operation opening by push-button (O) or trip units.b. Earthing-switch function: Independent operation closing and opening by lever. Operating energy is provided by a compressed spring which, when released, causes the contacts to open or close. c. Opening releases- shunt trip Switch: The switch shall use low pressure SF6 gas for current interruption and shall require no maintenance. The switch enclosure shall be mounted horizontally within the cubicle and the position of the main and earthing contacts shall be clearly visible from the front of the cubicle. |
| 15 | The position indicator shall be placed directly on the contact-operating shaft. The switch enclosures shall be made of cast epoxy resin. The mechanical endurance of the switch operating mechanisms shall ensure at least1000 operations class M1. LBS Panel: Medium voltage switchgear shall comply with the latest issues of the IEC recommendations: IEC 62271-200. Switchgear shall be Free standing, Floor mounted, metal enclosed suitable for Outdoor use. The frame of individual vertical panels shall be minimum 2 mm CRCA. Degree of protection shall not be less than IP55. All hardware shall be corrosion resistant. Busbar shall be high conductivity aluminum/Copper supported on insulators made of non-hygroscopic, non-inflammable material. Panel shall be provided with earth busbar of copper of suitable size rated for short time rating of switch board and Provision for receiving incoming or outgoing power cable through rear bottom entry. All metal surface shall be thoroughly cleaned, processed under 7 tank treatment.Make of Panel: Schneider/ ABB/ Siemens/ dvepl |
| 16 | Contd. Panel shall be powder coated with final colour shade RAL 7032/ equivalent shade. Earthing of the Power Circuit: Cable earthing shall be carried out by an earthing switch with a shortcircuit making capacity, in accordance with IEC 62271-102 commendations. It shall be possible to operate the earthing switch when the switch or disconnector is open. Mechanical interlocking systems (rotating switch with 3 positions) shall be provided to prevent incorrect operations such as the closing of the earthing switch with the switch or disconnector in closed position Control Wiring: The wiring shall be carried out using multi-strand copper conductor super flexible PVCinsulated wires of 650/ 1100 V Grade for AC Power. Control terminals shall be screw type for auxiliary wiring Minimum 10% spare terminals shall be provided for control circuit Tests: Routine tests shall be carried out as per relevant standards at manufactures works. Make: Dvepl/ LK / SASA |
| 17 | Supply and installation and testing gang operated Air-break switch, triple pole, 11 KV, outdoor type, mechanically operated, mounted on insulator and steel frame with operating mechanism worked from ground level with suitable dia of GI pipe (medium grade) operating rod of suitable length with an ON-OFF position, capacity 200 amps with dropout fuse & 12 insulator connected with new ACSR conductor (jumper) duly logged incoming and out going with steel nut, bolts and washers complete all as specified and as directed by Engineer-in-Charge. |
| 18 | Supply, laying, jointing and testing 11 KV (Earthed), aluminium conductor, screened, XLPE insulated, armoured shielded and PVC inner sheathed galvanised steel strip armoured and over all PVC sheathed electric power cable (Heavy duty) conforming to IS 7098 (Part-II) amended upto date having cross sectional area 95 Sqmm, 3 core complete all as specified and directed by Engineer-in-Charge.Note :- Earth work, sand cushioning, pipe and PCC cable protection cover shall be measured and paid separately. |
| 19 | Supply and fixing Lightening arrestor, expulsion type for outdoor use complete with all fitting transmission class discharge capacity 65 KA suitable for 11000 volts conforming to IS : 3070 (part -3) 1993 including brackets, clamps, nuts and washers and connecting to earth wire 4 mm dia GI wire complete all as specified and as directed by Engineer-in-charge. |
| 20 | Material and labour for earthing complete with galvanized steel earth plate electrode 600mm x 600mm x 6mm buried directly in ground vertically to a depth not less than 2.25 metre below normal ground level (with top edge of earth plate not less than 1.50 metre below ground level) connected to GI strip 32mm x 6mm main earthing lead by means of galvanized bolts, nuts and washers with connected to earth test point & to main switch board/ panel etc., all as specified and testing on completion with and including necessary excavation and earth work in any type of soil, earth electrode, earthing lead from electrode to equipment/ substation/ panel etc., adequate quantity of charcoal dust and common salt, test point terminal block made out of phosphorous bronzein sheet steel box, earthing pit made with PCC 1:3:6, type C-1 (using 20mm graded stone aggregate) with 40 x 40 x 6mm mild steel angle iron frame for cover, 40 mm thick earthing pit cover, made with pre-cast RCC 1:2:4, type B-1 (using 20mm graded stone aggregate) reinforced with 8 mm dia TMT bars, 3 Nos both way with 12 mm dia round bar handle, GI light grade watering pipe 20 mm dia with funnel and wire mesh and 40 mm dia GI light grade earth lead protection pipe, complete all as specified and as directed by Engineer-in-Charge. |
| 21 | All as per item Ser item No. 12.00 here-in-before but with copper earth plate of size 600mm x 600mm x 3.15 mm thick and connected with copper strip earthing lead of size 20mm x 3mm complete all as specified and as directed by Engineer-in-Charge. |
| 22 | S&F GI tubes, 80 mm bore, 'light grade' for cable protection on poles/ walls/ under road/ culvert etc complete all as specified and as directed by Engineer-in-charge. |
| 23 | Excavation in trenches in any type of soil not exceeding 1.50 metre wide and not exceeding 1.50 metre in depth; for laying of cable, poles, stays etc., and getting out complete all as specified and as directed by Engineer-in-Charge.Note : (i) Excavation shall be made carefully in order to avoid damage of existing cables and protection covers. |
| 24 | Returning, filling in (soils) including spreading, leveling, watering and well ramming in layers of 25 cm thick after the cables etc. are laid, jointed and tested complete all as specified and as directed by Engineer-in-Charge. |
| 25 | Removal of surplus excavated spoil (Soils) not exceeding 50 metre distance and depositing where directed by Engineer-in-Charge at a level not exceeding 1.5 metre above the starting point complete all as specified and as directed Engineer-in-Charge. |
| 26 | M&L for Sand cushioning to Underground cable 8 cm thick before laying the cable and 15 cm above the cable as specified in SSR including punning down of sand in layer complete all as specified and as directed by Engineer-in-charge.Note:(i) Consolidated/ Punned sand thickness shall be considered for purpose of payment.(ii) Sand shall be same as specified for plastering work. |
| 27 | Supplying and laying un-reinforced precast concrete cable cover, class HVP, type 1 with peak, size 300 mm x 180 mm x 40 mm, complete all as specified and directed by the Engineer-in-Charge. |
| 28 | S&F HT heat shrinkable type Cable Jointing Kit complete with jointing material and accessories for indoor end termination Joint, suitable for 11 KV (Earthed) grade XLPE armoured aluminium conductor cable of size 50 sqmm to 95 Sqmm, 3 core complete all as specified and directed by Engineer-in-Charge. |
| 29 | S&F HT heat shrinkable type Cable Jointing Kit complete with jointing material and accessories for outdoor end termination Joint, suitable for 11 KV (Earthed) grade XLPE armoured aluminium conductor cable of size 50 sqmm to 95 Sqmm, 3 core complete all as specified and directed by Engineer-in-Charge. |
| 30 | S&F in repair heat shrinkable end joint for 1100 volt grade XLPE cable of size 95 Sqmm to 120 Sqmm, 3.5 core complete all as specified. |
| 31 | S&F in repair heat shrinkable end joint for 1100 volt grade XLPE cable of size 150 Sqmm to 240 Sqmm, 3.5 core complete all as specified.. |
| 32 | S&F in repair heat shrinkable end joint for 1100 volt grade XLPE cable of size 300 Sqmm to 400 Sqmm, 3.5 core complete all as specified.. |
| 33 | Supply and fixing HT pole danger notice plate for HT 11KV/ 33KV Pole, size of plate 25 cm x 20 cm, 1.6 mm thick mild steel sheet, vitreous enameled, white, with letters, figures and conventional skull & bones “DANGER” etc., in signal red colour and fixed with MS clamps made out of 25mm x 3mm MS flat iron, nut, bolts complete all as specified and as directed by Engineer-in-Charge. Please Enable Macros to View BoQ information |
AI Tender Summary
Tender Timeline
Sep 12, 2026
11:30 IST
Tender Published
Tender notice published.
CompletedOct 10, 2026
17:00 IST
Bid Submission Deadline
Online submission via eProcurement portal.
Upcoming · 7 daysOct 12, 2026
Bid Opening Date
Technical bids will be opened and evaluated.
Upcoming · 9 daysTender Documents
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