Coal India Limited announces a tender for Distribution Transformer, 3 Phase, 11 kV > 200 KVA up to and Including 2500 KVA (Q3) in TINSUKIA, ASSAM. Quantity: 1. Submission Deadline: 06-11-2025 09: 00: 00. Last date to apply is approaching fast!
GEM
Procurement Opportunity: Distribution Transformer, 3 Phase, 11 kV > 200 KVA up to and Including 2500 KVA in TINSUKIA, ASSAM
Progress
Issue16 Oct 2025, 09:00 am
AwardPending
Quantity
1
Bid Type
Two Packet Bid
Categories
4
Technical Specifications
1 Item
Item #1 Details
View Catalog| Category | Specification | Requirement |
|---|---|---|
| STANDARDS | Energy efficiency level | 3 |
| STANDARDS | BEE Star Rating | 4 |
| STANDARDS | Installation, Testing and Demonstration | Yes . Including Civil work, Yes . Excluding Civil work, No |
| STANDARDS | Minimum warranty on receipt of stores (in Months) | 30 |
| STANDARDS | Minimum warranty from the date of installation (in Months) | 24 |
| RATINGS | Nominal system voltage, HV ( in kV) | 11 |
| RATINGS | Nominal system voltage, LV ( in V) | 415 |
| RATINGS | Standard ratings (in kVA) | 250 |
| RATINGS | Minimum basic insulation level (in kVP) | 75 |
| RATINGS | No load voltage ratios (in Volts) | 11000/433-250 |
| RATINGS | Highest system voltage for equipment (in kV) | 12 |
| RATINGS | Rated lightning impulse withstand voltage (in kV Peak) (Refer IS:1180 (Part 1):2014 Annex-D) | 75 |
| CONSTRUCTION | Core mateial | CRGO (as per IS:3024 latest) |
| CONSTRUCTION | Conductor (Winding) material | Copper |
| CONSTRUCTION | Type of Mounting | Ground Mounted |
| CONSTRUCTION | Noise level at rated voltage and freqeuncy, Maximum (in dB) | 45, 48, 51, 55 |
| TRANSFORMER TANK | Transformer tank cover construction | Non-sealed, Bolted |
| TRANSFORMER TANK | Tank configuration with | With radiator fins |
| TRANSFORMER TANK | Material of transformer tank | Mild Steel |
| TRANSFORMER TANK | Minimum thickness of top and bottom material of transformer tank (in mm) | 5 |
| TRANSFORMER TANK | Minimum thickness of side material of transformer tank (in mm) | 3.15 |
| TRANSFORMER TANK | Material of Bolts/Nuts/Wahers exposed to atmosphere | Stainless steel (for upto 12 mm size), Brass (for upto 12 mm size), Electro Galvanized (for above 12 mm size), Hot Dip Galvanized (for above 12 mm size) |
| TRANSFORMER TANK | Gaskets wherever used shall conform to | Type III (as per IS:11149) Type C (as per IS:4253 (Pt.2) |
| TRANSFORMER TANK | Provision of conservator | Yes , for Non sealed type with Plain tank construction |
| Painting | Type of painting on inside of tank (hint: Refer Table 12 of IS:1180 (Pt.1):2014) | Oil resistant paint |
| Painting | Type of painting on External surface of tank (hint: Refer Table 12 of IS:1180 (Pt.1):2014) | Epoxy (Primer), Polyurethane (finish coat) |
| TAP CHANGER | Winding tapped | HV |
| TAP CHANGER | No. of positions (in Nos.) | 7 |
| TAP CHANGER | Voltage variation | +5% to -10% in steps of 2.5% for variation of HV |
| TERMINAL ARRANGEMENT | Transformer fitted with bushings of appropriate voltage and curent ratings on HV side | Yes. 3 Nos. (Conforming to IS:2099) |
| TERMINAL ARRANGEMENT | Transformer fitted with bushings of appropriate voltage and curent ratings on LV side | Yes. 4 Nos. (Conforming to IS:7421) |
| TERMINAL ARRANGEMENT | Suitable provision for adoption of cables of suitable size on LV side | Yes. For PVC/XLPE Cables |
| TERMINAL ARRANGEMENT | Cable End Box on HV side | Yes |
| TERMINAL ARRANGEMENT | Cable End Box on LV side | Yes |
| MARKING | Material of rating plate | Anodized aluminium |
| MARKING | Marking method on rating plate | Stamped |
| MARKING | Rating and terminal marking plates combined into one plate | Yes |
| OPTIONAL FITTINGS | Suitable rating lightning arrestors | HT Side, 1 No. per phase |
| OPTIONAL FITTINGS | Bird guard | Yes, No |
| OPTIONAL FITTINGS | Terminal connectors | Yes, No |
| OPTIONAL FITTINGS | Oil temperature indicator and widning temperature indicator | Yes, No |
| OPTIONAL FITTINGS | Jacking pads | Yes for transformer above 1600 KVA, No, Yes |
| OPTIONAL FITTINGS | Buchholz relay | NoMagnetic oil level gauge with low oil level alarm contact |
| OPTIONAL FITTINGS | Magnetic oil level gauge with low oil level alarm contact | Yes for transformer above 1600, No, Yes |
| OPTIONAL FITTINGS | Non return valve | Yes, No |
| OPTIONAL FITTINGS | Protection relay for sealed type transformers for internal parameters that is pressure, temperature, oil level and gas detection | Yes, No |
| OPTIONAL FITTINGS | Unidirectional flat rollers | Yes |
| OPTIONAL FITTINGS | Drain cum sampling valve | Yes with steel plug (for transformers upto 500 KVA) |
| OPTIONAL FITTINGS | Self protection / disconnection devices | On secondary side (as per IS/IEC:60947-2:2003 |
| OPTIONAL FITTINGS | Expulsion fuse as disconnection device | On Primay side (as per IS:9385 (Part 2):1980 |
| SERVICE CONDITION | Maximum altitude | <1000 m, <5000 m |
| TEST REPORTS & CERTIFICATIONS | Availability of type test reports to prove the confirmity of the specification from | NABL Accrediated |
| TEST REPORTS & CERTIFICATIONS | Agreed for stage Inspection as required by buyer | Yes |
| SPECIAL TEST REPORTS | Availability of test report for Determination of sound level test | Yes, No |
| SPECIAL TEST REPORTS | Availability of test report for short circuit withstand test | Yes, No |
| SPECIAL TEST REPORTS | Availability of test report for No load current at 112.5 % Voltage | Yes, No |
| SPECIAL TEST REPORTS | Availability of test report for Paint adhesion test | Yes for 1 No., No, Yes for all units |
| SPECIAL TEST REPORTS | BDV and moisture content of oil in the transformer | Yes for 1 No., No, Yes for all units |
| SPECIAL TEST REPORTS | Other requirements | Losses and Impedance values as per Cl.7.8 and Table 6 of IS:1180 (Part 1):2014 latest, Limits of temeprature-rise as per Cl.7.10 of IS:1180 (Part 1):2014 latest |
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Required Documents
1
Experience Criteria
2
Certificate (Requested in ATC)
3
OEM Authorization Certificate *In case any bidder is seeking exemption from Experience / Turnover Criteria
4
the supporting documents to prove his eligibility for exemption must be uploaded for evaluation by the buyer
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EMD: ₹1.3 Cr
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Documents 3
GeM-Bidding-8458550.pdf
Main Document
CATALOG-Specification-59-items
CATALOG Specification
GEM General Terms and Conditions Document
GEM_GENERAL_TERMS_AND_CONDITIONS
GeM-Bidding-8458550.pdf
Main Document
CATALOG-Specification-59-items
CATALOG Specification
GEM General Terms and Conditions Document
GEM_GENERAL_TERMS_AND_CONDITIONS
