GEM

Bids are Invited For Distribution Transformer, 3 Phase, 11 kV > 200 KVA up to and Including 2500 KVA in KANYAKUMARI, TAMIL NADU

Bid Publish Date

09-Dec-2025, 11:39 am

Bid End Date

19-Dec-2025, 3:00 pm

EMD

₹10,000

Location

KANNIYAKUMARI , TAMIL NADU

Progress

Issue09-Dec-2025, 11:39 am
AwardPending
Explore all 4 tabs to view complete tender details

Quantity

1

Bid Type

Single Packet Bid

Categories 8

HIGH VOLTAGE DISTRIBUTION SYSTEM DIRECT TRANSFORMER DISTRIBUTION TRANSFORMER ELECTRICAL SUBSTATION STATIC CONVERTERS TRANSFORMER SUPPLY ELECTRICAL DISTRIBUTION SYSTEM SUB STATION

A tender has been published for Tamil Nadu Generation And Distribution Corporation Limited (tangedco) Distribution Transformer, 3 Phase, 11 kV > 200 KVA up to and Including 2500 KVA (Q3) in KANYAKUMARI, TAMIL NADU. Quantity: 1 by. Submission Deadline: 19-12-2025 15: 00: 00. Check eligibility and apply.

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Technical Specifications 1 Item

Item #1 Details

View Catalog
Category Specification Requirement
STANDARDS Energy efficiency level 1
STANDARDS BEE Star Rating 1
STANDARDS Installation, Testing and Demonstration Yes . Including Civil work
STANDARDS Minimum warranty on receipt of stores (in Months) 66
STANDARDS Minimum warranty from the date of installation (in Months) 60
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 Aluminium, Copper
CONSTRUCTION Type of Mounting Ground Mounted
CONSTRUCTION Noise level at rated voltage and freqeuncy, Maximum (in dB) 48
TRANSFORMER TANK Transformer tank cover construction Sealed
TRANSFORMER TANK Tank configuration with Cooliong tubes
TRANSFORMER TANK Material of transformer tank Stainless steel
TRANSFORMER TANK Minimum thickness of top and bottom material of transformer tank (in mm) 7
TRANSFORMER TANK Minimum thickness of side material of transformer tank (in mm) 5
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 No
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)
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 Stainless steel
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
OPTIONAL FITTINGS Terminal connectors Yes
OPTIONAL FITTINGS Oil temperature indicator and widning temperature indicator Yes
OPTIONAL FITTINGS Jacking pads No
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
OPTIONAL FITTINGS Non return valve Yes
OPTIONAL FITTINGS Protection relay for sealed type transformers for internal parameters that is pressure, temperature, oil level and gas detection Yes
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 No
SERVICE CONDITION Maximum altitude <1000 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
SPECIAL TEST REPORTS Availability of test report for short circuit withstand test Yes
SPECIAL TEST REPORTS Availability of test report for No load current at 112.5 % Voltage Yes
SPECIAL TEST REPORTS Availability of test report for Paint adhesion test Yes for 1 No.
SPECIAL TEST REPORTS BDV and moisture content of oil in the transformer Yes for 1 No.
SPECIAL TEST REPORTS Other requirements Limits of temeprature-rise as per Cl.7.10 of IS:1180 (Part 1):2014 latest

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Required Documents

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Experience Criteria

2

Past Performance

3

Bidder Turnover

4

OEM Authorization Certificate

5

OEM Annual Turnover *In case any bidder is seeking exemption from Experience / Turnover Criteria

6

the supporting documents to prove his eligibility for exemption must be uploaded for evaluation by the buyer

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