Tender for 500 kVA Transformer, Qty: 1 Each, (BOQ Item #14)

Purchaser's Detail

Tender's Details

BOQ Item Description: Providing, erecting, testing & commissioning approved make oil immersed ONAN cooled, double wound, core type indoor / outdoor copper wound 11KV/ 433V step down transformer of 500 KVA, operating on 3 phase, 50 Hz 4 wire & neutral earthed system continuously rated for a full temperature rise in oil not exceeding 45 Deg.C.at maximum ambient temp. of 50 Deg. C. complete with necessary radiator first filling of new transformer oil & standard fitting as below complying with IS 1180( Part 1) 2014 standards with energy efficiency level 2, Off load tap changing range steps +2.5 percentage to -5 percentage on HV for variation should be provided. The HV shall be connected Delta & Secondary with star connection. The transformer should have cable-end boxes on HT side suitable for up to 3 core 150 sq.mm. XLPE cable & on LT side suitable for bus duct or cables as per requirement complete with test certificates from manufacturers.
1. Oil conservator with filling Hole & Cap - One No. 2. Thermometer pocket with 6 inch dial type thermometer switch alarm & trip contacts- Two nos. 3. Silica-gel breather with charge- One No.4. Plain oil level gauge - One No. 5. Drain / Sampling / Filter valve- One No. 6. Top Filter Valve - One No. 7. Explosion vent with Diaphragm - One No. 8. Rating & Diagram plate - One No. 9. Additional neutral bushing for earthing - One No. 10. Bi directional Roller - Four Nos. 11. Earthing terminals - Two Nos. 12. Lifting lugs - Two Nos. 13. Air release plug. - One No. 14. Double float buchholz relay with Alarm and trip contacts. 15. Control cable as required from Transformer to VCB Panel is to be provided with necessary connection to VCB relays for protection.as per IS 1180 level-2. Max. allowable loses at 50 percentage of rated load is 1.510 KW and at full load is 4.3 KW Cat.III
BOQ Title: SITC of eletrical equipments and accessories at SSD, XLPE Cables for Working Voltages From 3.3 KV up to and Including 33 KV as per IS 7098 (Part 2)
Item Title: 500 kVA Transformer
Item Quantity: 1
Unit of Measure: Each
Delivery Period (In number of days): 365
Start Date: 26-08-2025 5:42 PM
End Date: 16-09-2025 6:00 PM
EMD Amount: 186000
BOQ Title: SITC of eletrical equipments and accessories at SSD
GeMARPTS Searched: Searched String: 3 core 185 Sq.mm XLPE insulated 11 KV armoured cable Aluminium conductor IS-7098 XLPE Cables for Working Voltages From 3.3 KV up to and Including 33 KV as per IS 7098 (Part 2) Searched String: Cable Cleats Field Telephone Cable (Telecommunication Cable), XLPE Cable for Working Volta...