Tender For Provn And Installation Of 63 Kva Sub Stn At Zalurah Company Operating Base Of 22 Repair Renovation And Replacement Of 02X 82.5 Kva Diesel Generator Sets With Allied Infra Against Ber Eqpt At R Ur In The Aor Of Age E/M Under Ge 969 Ews
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Project Description
Tender For Provn And Installation Of 63 Kva Sub Stn At Zalurah Company Operating Base Of 22 Repair Renovation And Replacement Of 02X 82.5 Kva Diesel Generator Sets With Allied Infra Against Ber Eqpt At R Ur In The Aor Of Age E/M Under Ge 969 Ews
BOQ
| Sl. No. | Item Description |
| 1 | Supply, installation, testing and commissioning of copper wound step-down Distribution Transformer, outdoor, floor mounted type, suitable for 11 KV / 433 V, 3 phase, 4 wire, 50 Hz AC system, of capacity 63 KVA , oil immersed, naturally cooled ONAN (Oil Natural Air Natural) type, complete with all standard accessories, fittings and mounting arrangements. The transformer shall conform to latest amendments of IS-1180 (Part-1):2014, BIS certified. Transformer shall be suitable for outdoor operation under Indian climatic conditions. The transformer shall have: HV side: Delta connected LV side: Star connected with neutral brought out Vector group: DYN-11 Tapping: Off-load tap changer on HV side with taps of ±2.5%, ±5%, ±7.5% in steps of 2.5% Cooling: ONAN with radiators/cooling fins Technical requirements i. Winding: Electrolytic grade copper ii. Insulation: As per IS standards iii. Percentage impedance: As per IS 1180 iv. Losses: As per Energy Efficiency Level-2 / latest BEE norms v. Temperature rise limits: As per IS 1180 vi. Vector group: DYN-11 mandatory vii.Neutral brought out and suitable for solid earthing Accessories & fittings i. Cable end box on HV side suitable for 95 sqmm 3 core size XLPE cable. ii. Cable end box on LV side suitable for 95 sqmm 3.5 Core size XLPE cable with cable glands. |
| 2 | iii. Conservator with oil level indicator (min/max marking). iv. Silica gel dehydrating breather (first filling included). v. Cooling radiators / fins. vi. Explosion vent / pressure relief device (PRD). vii. Oil temperature indicator (OTI) with maximum reading and reset. viii. Thermometer pocket. ix. Oil filling hole with cap. x. Oil drain valve with sampling facility. xi. Air release valve. xii. Earthing terminals: Minimum 2 nos. for body earthing .Minimum 2 nos. for neutral earthing (separate bushing) xiii. Lifting lugs and pulling lugs. xiv. HV bushings with arcing horns. xv. LV bushings (porcelain/epoxy as per standard). xvi. Rating plate (as per IS) and terminal marking plate. xvii. Danger plate and phase indication markings. xviii. First filling of new, unused, ISI marked transformer oil conforming to IS 335. Notes:-(i) The drawing of transformer shall be approved by accepting officer on receipt of request from the contractor through GE. (ii) The transformer shall be tested as per IS for all routine tests in the factory premises and reports will be deposited with purchase voucher. (iii) Factory inspection and testing of the transformer shall be carried out in the presence of the representative of the Accepting Officer/SEI/IEM, and all associated charges shall be borne by the contractor. Please Enable Macros to View BoQ information |
| 3 | iii. Conservator with oil level indicator (min/max marking). iv. Silica gel dehydrating breather (first filling included). v. Cooling radiators / fins. vi. Explosion vent / pressure relief device (PRD). vii. Oil temperature indicator (OTI) with maximum reading and reset. viii. Thermometer pocket. ix. Oil filling hole with cap. x. Oil drain valve with sampling facility. xi. Air release valve. xii. Earthing terminals: Minimum 2 nos. for body earthing .Minimum 2 nos. for neutral earthing (separate bushing) xiii. Lifting lugs and pulling lugs. xiv. HV bushings with arcing horns. xv. LV bushings (porcelain/epoxy as per standard). xvi. Rating plate (as per IS) and terminal marking plate. xvii. Danger plate and phase indication markings. xviii. First filling of new, unused, ISI marked transformer oil conforming to IS 335. Notes:-(i) The drawing of transformer shall be approved by accepting officer on receipt of request from the contractor through GE. (ii) The transformer shall be tested as per IS for all routine tests in the factory premises and reports will be deposited with purchase voucher. (iii) Factory inspection and testing of the transformer shall be carried out in the presence of the representative of the Accepting Officer/SEI/IEM, and all associated charges shall be borne by the contractor. Please Enable Macros to View BoQ information |
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