Tender for the Work of Supply, Erection and Commissioning of 250KVA LT Distribution Transformers of 6.6Kv/433V for CWSS Stage 1 and Stage 3 Pumping Station at T K Halli.

Work of Supply, Erection and Commissioning of 250KVA LT Distribution Transformers of 6.6Kv/433V for CWSS Stage 1 and Stage 3 Pumping Station at T K Halli.

Sl. No Specification of the Work Unit Qty Rate Amount

1 Supply of 250 KVA, 6.6 kV/433 V LT Distribution Transformer Indoor Type, Dyn11, Copper winding (As per ESCOMs Karnataka),as per IS 1180 (Part 1): 2014 (with latest amendments), IS 2026 series, IS 335, IS 2099/IS 7421, IS 6600, CEA Distribution Transformer Regulations, and Karnataka ESCOMs Specifications (BESCOM, HESCOM, GESCOM, CESC, MESCOM). * Rated capacity should be: 250 KVA,6.6Kv/433V, 3-phase, 50 Hz. * System voltage should be: 6.6 kV distribution network, neutral solidly earthed. * Primary voltage (HV) and Secondary voltage (LV) should be 6.6 kV +12.5% (to match ESCOM tap ranges) and 0.433 kV (415/240 V system) respectively. * Vector group Type: Dyn11, Connection Type: HV Delta / LV Star with neutral brought out, Cooling Type: ONAN. * Tap Changer & Voltage Regulation: Off circuit tap changer (HV): *5% in 2.5% steps (5 position: +5%, +2.5%, 0, -2.5%, -5%). Tap changer operable only when de energized with padlock provision and position indicator. * Core & Winding: Core: CRGO silicon steel, step-lap construction, core earthed at one point, Winding: Electrolytic copper, paper insulated, foil type (LV) and multi-layer disc (HIV). * Terminations: HV side: Suitable for XLPE 6.6 kV screened cables, cable box type, with stress relief, LV side: Cable box type, suitable for armoured 1.1 kV LT cables, TPN bus bars, neutral bushing brought out and BEE Star Rating (4-Star / 5-Star). No 2

2 Erection of Transformer No 2

Terms and Conditions

1 All the works should be carried out as per KTPP Act and as per specification or as directed by the Engineer- in-charge.

2 Rates quoted above are including clearance of the site (prior to commencement of work and its completion) in all conditions of site, moisture, weather etc.

3 The Board reserves the right to bifurcate the work and entrust if warranted and if found expedient and advantageous to the Board of lowest approved rates.

4 The BWSSB reserves the right to accept or reject any OR all of the tenders without assigning any reason.

5 Rates should be Exclusive of all taxes, insurance and freight charges.

6 Rates should be quoted by the contractor/firm on Item war basis both in figures and in words.

7 The payment will be made after completion of work.

8 The firm should upload turnover certificate which is counter signed by chartered accountant.

9 The firm should have requisite man power, machineries at their disposal to complete the work within the stipulated period, the necessary documents should be enclosed.

10 The firm has to upload "Form of tender" in the standard format or otherwise the tender will be liable for rejection.

11 Rates are Exclusive of GST & other taxes & duties.

Signature of the Contractor