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| # | Company | Amount | Rank | Status |
|---|---|---|---|---|
| 1 | L-1₹39.9 LAccepted-AOC | ₹39.9 L | L-1 | Accepted-AOC Lowest bidder for the subject work. |
| 2 | L-2₹41.5 L+₹1.6 L (4.12%)Rejected-Finance 84 A VIJAY NAGAR COLONY LALGHATI PO NAYAPURA BHOPAL 462032 | 462032 | ₹41.5 L+₹1.6 L (4.12%) | L-2 | Rejected-Finance other than the lowest bidder |
| 3 | L-3₹42.3 L+₹2.4 L (6.04%)Rejected-Finance | ₹42.3 L+₹2.4 L (6.04%) | L-3 | Rejected-Finance other than the lowest bidder |
| 4 | L-4₹42.9 L+₹3.0 L (7.65%)Rejected-Finance CHANDAN NAGAR OPP IOCL PERTROL PUMP RAMPUR ROAD BAREILLY UP 243001 | BAREILLY | BAREILLY | UTTAR PRADESH | 243001 | ₹42.9 L+₹3.0 L (7.65%) | L-4 | Rejected-Finance other than the lowest bidder |
| 5 | L-5₹45.8 L+₹6.0 L (14.9%)Rejected-Finance 1 A BASEMENT 30 31 RAJA HOUSE NEHRU PALACE NEW DELHI 110 019 | SOUTH EAST | DELHI | 110019 | ₹45.8 L+₹6.0 L (14.9%) | L-5 | Rejected-Finance other than the lowest bidder |
| Sl No | Description | Qty | Unit | BHARAT ELECTRICAL TRADERS L4 | POONAM ELECTRIC INDUSTRY L2 | MONA GENERATOR SEVICES PVT. LTD. L5 | SAMEER ELECTRICAL SUPPLIER L6 | MHD POWER PVT LTD L1 | PRADEEP TIWARI CONTRACTOR L3 |
|---|---|---|---|---|---|---|---|---|---|
| 1.00 | Taking down old existing 33/11 KV power transformer of capacity 1 MVA from transformer platform at MRS SI Line after disconnecting all incomming and out going electric connection after taking proper shut down from concerned JE E/M and AGE E/M and all precaution and T& P without any damage to transformer and kept aside at site and depositing the same in the MES yard complete all as specified and as directed. | 1 | Each Job | 20,000 ₹20,000 | 9,000 ₹9,000 | 13,230 ₹13,230 | 15,000 ₹15,000 | 2,50,000 ₹2,50,000 | 7,000 ₹7,000 Lowest |
| 2.00 | Supply, installation, commissioning, and testing of Power transformer 1.6 MVA (1600 KVA), 33/11 KV, step down, 50 Hz, Copper Wound, first Oil filled as per IS-, ONAN cooled, Outdoor type, Vector Group Dyn 11, bushing at both sides HT and LT, on load tap changer with complete protection and measuring accessories such as like OLTC, RTCC Panel, AVR. Lifting Lugs, Oil Conservator Tank, Top Filter Valve, Silica Gel, Breather, Drain Valve, Marshalling Box, Buccholz Relay (Double Float Type having contact for Alarm & Trip), Explosion Vent, Earthing Terminals, Air release Plug, Base Channel, Prismatic Oil Level gauge, Oil Temperature indicator with contacts for alarm & Trip, Marshalling Box, (Metal enclosed / Vermin / Dust Proof fitted with required Glands, Heater, Glass Door shall be IP-55 or superior), Winding Temperature Indicator with Contacts for Alarm and Trip . The equipment shall also conform to the latest applicable standards and codes of practice. Transformer shall conform to IS 2026.The salient feature of transformer shall be as follows.
(A) CLIMATIC CONDITIONS:
(a) Max. ambient air temperature - 47 degree C
(b) Max. daily average ambient temp- 40 degree C
(c) Max. yearly weighted ambient temp - 32 degree C
(d) Min. ambient air temp - 4 degree C
(e) Max. humidity- 100%
(f) Average number of thunder storm days per annum- 40
(g) Average annual rain fall- 15 cm to 100 cm
(h) No. of months during which tropical monsoon conditions prevail-4 months (June to Sept)
(j) Maximum wind pressure 195 Kg/Sqm
(k) Altitude above MSL Varies from 61 meters to 815 meters
(l) Average number of rainy days per annum. 120 days | 1 | Each | 42,70,000 ₹42,70,000 | 41,40,000 ₹41,40,000 | 45,67,036 ₹45,67,036 | 46,00,000 ₹46,00,000 | 37,35,000 ₹37,35,000 Lowest | 42,18,500 ₹42,18,500 |
| 2.01item 2.00 contd/-.... (B) TECHNICAL REQUIREMENTS OF POWER TRANSFORMER: 1. Rated MVA (ONAN rating) 1.6 MVA 2. No. of phases 3 3. Type of installation Outdoor 4. Frequency 50 Hz (± 5%) 5. Cooling medium Insulating Oil (ONAN) 6. Type of mounting On Wheels / Under Base Channel 7. Rated voltage: (a) High voltage winding 33 KV, (b) Low voltage winding 11 KV 8. Highest continuous system voltage: (a) Maximum system voltage ratio (HV / LV) 36 KV / 12 KV, (b) Rated voltage ratio (HV / LV) 33 KV / 11 KV 9. No. of windings Two winding Transformers. 10. Type of cooling ONAN (Oil natural / Air natural) 11. MVA Rating corresponding to ONAN cooling system- 100% 12. Method of connection: HV side - Delta and LV side – Star 13. Connection symbol Dyn 11 14. System earthing Neutral of LV side to be solidly earthed. 15. Percentage impedance voltage on normal tap and MVA base at 750 C corresponding to HV/LV rating and applicable tolerance -% Impedance -% 6.25 and tolerance + 10(No negative tolerance will be allowed) 16. Intended regular cyclic overloading of windings- As per IEC – 76-1, Clause 4.2 17. Load setting: (a) Anticipated unbalanced loading. Around 10%, (b) Anticipated continuous loading of windings (HV / LV). 110% of rated current. 18. Tap changer specification: (a) Type of tap changer On-load tap changer, (b) Range of taping +5% to -15% in 17 equal steps of 1.25% each on HV winding. 19. Position of Neutral terminal - On LV side only 20. Over Voltage operating capability and duration- 112.5% of rated voltage (continuous) | |||||||||
| 2.02item 2.00 contd/-.... 21. Insulation levels for windings: - 33 KV side and 11 KV side: (a) 1.2/50 microsecond wave shape Impulse withstand (KVp) -170 and 95 KVp, (b) Power frequency voltage withstands (KVrms) -70 and 28 KVrms 22. Type of winding insulation: (a) HV winding- Uniform, (b) LV winding- Uniform 23. Withstand time for three phase short circuit -2 Seconds (as per IS) 24. Noise level at rated voltage and frequency as per NEMA Publication No. TR-1 25. Permissible Temperature Rise over ambient temperature of 50°C: (a) 50°C in oil / 55°C in winding 26. Minimum clearances in air (mm)-Phase to Phase and Phase to ground - As per IS 27. Terminals: (a) HV winding line end-36 KV oil filled communicating type porcelain bushings (Antifog type), (b) LV winding -12 KV porcelain type of bushing (Antifog type) 28. Insulation level of bushing - HV side and LV side: (a) Lightning Impulse withstand (KVP) -170 and 95 KVP (HV side), (b) 1 Minute Power Frequency withstand voltage (KV –rms)- 70 and 28 KV-rms (LV side) 29. Material of HV & LV Conductor: Electrolytic Copper 30. Maximum permissible no-load loss at rated voltage and rated frequency. 3.0 KW 31. Maximum permissible load loss at rated current and at 75°C 16 KW 32. Tap changing gear: - (i) Type- Heavy duty (not inside the main tank) (ii) Provided on- HV Side, on-load tap changer (OLTC) (iii) Tap range -15% to +5% (iv) Tap Step- 1.25% of 33 KV (17 equal steps) (v) Minimum Rated current for 3.15 MVA - 100A (vi) Minimum Rated short circuit current -3 KA (vii) Automatic control required -Yes (viii) Remote Control Panel required -Yes (ix) Marshalling kiosk required- Yes | |||||||||
| 2.03item 2.00 contd/-.... (C) THE EQUIPMENT AND MATERIALS COVERED BY THIS SPECIFICATION SHALL CONFORM TO THE LATEST APPLICABLE PROVISION OF THE FOLLOWING STANDARDS: 1. IS: 5 Colour for ready mixed paints & Enamels 2. IS: 325 Three Phase Induction Motors 3. IS: 335 New insulating oil for transformers, switch gears 4. IS: 1271 Classification of insulating materials for electrical machinery and apparatus in relation to their stability in services 5. IS: 2026 (Part I to IV) Power Transformer 6. IS: 2026 (Part V) Ability to withstand short circuit 7. IS: 1866 Code of Practice for maintenance & supervision of insulating oil in service 8. IS: 9335 Specification for insulating craft paper. 9. IS: 1576 Specification for solid insulating press boards for electrical purpose. 10. IS: 104 Ready mixed paint, brushing zinc chromate, painting. 11. IS: 649 Testing of steel sheet and strips for magnetic circuits. 12. IS: 2362 Determination of water content in oil for porcelain bushing transformer. 13. IS: 4257 Dimensions for clamping arrangements for bushing 14. IS: 6160 Rectangular Conductor for electrical machine. 15. IS: 3401 Silica Gel 16. IS: 2070 Method of Impulse Voltage Testing 17. IS: 2071 Method of high voltage testing 18. IS: 2099 High voltage porcelain bushings 19. IS: 2147 Degree of protection 20. IS: 2705 Current Transformers 21. IS: 3202 Code of practice for climate proofing of electrical equipment 22. IS: 3347 Dimensions for porcelain Transformer Bushings 23. IS: 3637 Gas & Oil operated relays 24. IS: 3639 Fittings and accessories for power Transformers 25. IS: 5561 Electric Power Connectors 26. IS: 6600/BS: CP’10:0 Guide for loading of oil immersed Transformers 27. IS: 10028 Code of practice for selection, installation and maintenance of transformers, Part I, II and III - 28. IS: 1002/1981 (Part – III) Maintenance of Transformer 29. C.B.I.P. Publication Manual on Transformers 30. IS 335 - transformer oil | |||||||||
| 2.04Note : 1. Following points are to be considered for selection of Transformer manufacturer. (i) The core shall be constructed from high grade, non-aging Cold Rolled Grain Oriented (CRGO) Silicon Steel laminations confirming to HIB grade with lamination thickness not more than 0.23mm to 0.27mm or better quoted grade Core. (ii) Manufacturer shall have in-house NABL accredited Laboratory in order to ascertain the authenticity of test results. (iii) The drawings of Transformer, Marshalling Box, RTCC etc. shall be got approved from GE. (iv) All routine tests shall be carried out at factory before the dispatch of Transformer. Copy of type test report for similar or higher rating will be witnesses during the inspection. (v) Control wiring upto CR panel in Main Power House rate should deemed to be included in the quoted rate. (vi) Whole work shall be carried out in accordance with the latest edition/amendments of the Indian Electricity Act and Rules formed there and as amended from time to time (vii) Performance guarantee of transformer shall be for the period of 36 (Thirty Six) months from the date of receipt in stores of purchaser of such transformer complete in all respect. The period during which transformer remained defective/ failed will not be accounted in this performance guarantee period. | |||||||||
Tender Value
₹43.6 L
EMD Value
₹87,280
Closing Date
21 Aug 2025, 6:00 pmClosed
Col Pawan Kumar, CWE
Headquarters, Commander Works Engineer, Bhopal, Military Engineer Services, SI Line, Bhopal, Pin Code - 462001 (Madhya Pradesh)
PROVN OF 1.6 MVA STANDBY POWER TRANSFORMER AT SI LINES UNDER GE BHOPAL
2025_MES_722847_1
84023/E8
Open Tender
Civil Works
Item Rate
180 days
Bhopal
AS PER NIT CONDITION
7 documents required · 7 mandatory
₹500
Yes
GE Bhopal
₹87,280
Yes
6 Dec 2025
26 Jul 2025
23 Aug 2025
26 Jul 2025
21 Aug 2025
9 Aug 2025
26 Jul 2025 - 9 Aug 2025
Amount
Taking down old existing 33/11 KV power transformer of capacity 1 MVA from transformer platform at MRS SI Line after disconnecting all incomming and out going electric connection after taking proper shut down from concerned JE E/M and AGE E/M and all precaution and T& P without any damage to transformer and kept aside at site and depositing the same in the MES yard complete all as specified and as directed.
Supply, installation, commissioning, and testing of Power transformer 1.6 MVA (1600 KVA), 33/11 KV, step down, 50 Hz, Copper Wound, first Oil filled as per IS-, ONAN cooled, Outdoor type, Vector Group Dyn 11, bushing at both sides HT and LT, on load tap changer with complete protection and measuring accessories such as like OLTC, RTCC Panel, AVR. Lifting Lugs, Oil Conservator Tank, Top Filter Valve, Silica Gel, Breather, Drain Valve, Marshalling Box, Buccholz Relay (Double Float Type having contact for Alarm & Trip), Explosion Vent, Earthing Terminals, Air release Plug, Base Channel, Prismatic Oil Level gauge, Oil Temperature indicator with contacts for alarm & Trip, Marshalling Box, (Metal enclosed / Vermin / Dust Proof fitted with required Glands, Heater, Glass Door shall be IP-55 or superior), Winding Temperature Indicator with Contacts for Alarm and Trip . The equipment shall also conform to the latest applicable standards and codes of practice. Transformer shall conform to IS 2026.The salient feature of transformer shall be as follows. (A) CLIMATIC CONDITIONS: (a) Max. ambient air temperature - 47 degree C (b) Max. daily average ambient temp- 40 degree C (c) Max. yearly weighted ambient temp - 32 degree C (d) Min. ambient air temp - 4 degree C (e) Max. humidity- 100% (f) Average number of thunder storm days per annum- 40 (g) Average annual rain fall- 15 cm to 100 cm (h) No. of months during which tropical monsoon conditions prevail-4 months (June to Sept) (j) Maximum wind pressure 195 Kg/Sqm (k) Altitude above MSL Varies from 61 meters to 815 meters (l) Average number of rainy days per annum. 120 days
item 2.00 contd/-.... (B) TECHNICAL REQUIREMENTS OF POWER TRANSFORMER: 1. Rated MVA (ONAN rating) 1.6 MVA 2. No. of phases 3 3. Type of installation Outdoor 4. Frequency 50 Hz (± 5%) 5. Cooling medium Insulating Oil (ONAN) 6. Type of mounting On Wheels / Under Base Channel 7. Rated voltage: (a) High voltage winding 33 KV, (b) Low voltage winding 11 KV 8. Highest continuous system voltage: (a) Maximum system voltage ratio (HV / LV) 36 KV / 12 KV, (b) Rated voltage ratio (HV / LV) 33 KV / 11 KV 9. No. of windings Two winding Transformers. 10. Type of cooling ONAN (Oil natural / Air natural) 11. MVA Rating corresponding to ONAN cooling system- 100% 12. Method of connection: HV side - Delta and LV side – Star 13. Connection symbol Dyn 11 14. System earthing Neutral of LV side to be solidly earthed. 15. Percentage impedance voltage on normal tap and MVA base at 750 C corresponding to HV/LV rating and applicable tolerance -% Impedance -% 6.25 and tolerance + 10(No negative tolerance will be allowed) 16. Intended regular cyclic overloading of windings- As per IEC – 76-1, Clause 4.2 17. Load setting: (a) Anticipated unbalanced loading. Around 10%, (b) Anticipated continuous loading of windings (HV / LV). 110% of rated current. 18. Tap changer specification: (a) Type of tap changer On-load tap changer, (b) Range of taping +5% to -15% in 17 equal steps of 1.25% each on HV winding. 19. Position of Neutral terminal - On LV side only 20. Over Voltage operating capability and duration- 112.5% of rated voltage (continuous)
item 2.00 contd/-.... 21. Insulation levels for windings: - 33 KV side and 11 KV side: (a) 1.2/50 microsecond wave shape Impulse withstand (KVp) -170 and 95 KVp, (b) Power frequency voltage withstands (KVrms) -70 and 28 KVrms 22. Type of winding insulation: (a) HV winding- Uniform, (b) LV winding- Uniform 23. Withstand time for three phase short circuit -2 Seconds (as per IS) 24. Noise level at rated voltage and frequency as per NEMA Publication No. TR-1 25. Permissible Temperature Rise over ambient temperature of 50°C: (a) 50°C in oil / 55°C in winding 26. Minimum clearances in air (mm)-Phase to Phase and Phase to ground - As per IS 27. Terminals: (a) HV winding line end-36 KV oil filled communicating type porcelain bushings (Antifog type), (b) LV winding -12 KV porcelain type of bushing (Antifog type) 28. Insulation level of bushing - HV side and LV side: (a) Lightning Impulse withstand (KVP) -170 and 95 KVP (HV side), (b) 1 Minute Power Frequency withstand voltage (KV –rms)- 70 and 28 KV-rms (LV side) 29. Material of HV & LV Conductor: Electrolytic Copper 30. Maximum permissible no-load loss at rated voltage and rated frequency. 3.0 KW 31. Maximum permissible load loss at rated current and at 75°C 16 KW 32. Tap changing gear: - (i) Type- Heavy duty (not inside the main tank) (ii) Provided on- HV Side, on-load tap changer (OLTC) (iii) Tap range -15% to +5% (iv) Tap Step- 1.25% of 33 KV (17 equal steps) (v) Minimum Rated current for 3.15 MVA - 100A (vi) Minimum Rated short circuit current -3 KA (vii) Automatic control required -Yes (viii) Remote Control Panel required -Yes (ix) Marshalling kiosk required- Yes
POONAM ELECTRIC INDUSTRY (BID ID -3394193)
PRADEEP TIWARI CONTRACTOR (BID ID -3394189)
BHARAT ELECTRICAL TRADERS (BID ID -3393894)
MONA GENERATOR SEVICES PVT. LTD. (BID ID -3401662)
SAMEER ELECTRICAL SUPPLIER (BID ID -3401968)
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