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| 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, and BEE 5-star rated (latest applicable notification). 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 copperii. 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 (11000 Volts) size XLPE cable. |
| 2 | ii. Cable end box on LV side suitable for 96 Sqmm 3.5 core (1100 Volts) size XLPE cable with cable glands.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 DG set 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. |
| 3 | Supply, Installation, Commissioning of transformer of capacity 200 KVA step down outdoor type Copper Wounded ONAN Cooling 11/0.433 KV (at no load) AC 3 Phase 50 Hz on secondary side double wounded oil immersed naturally all air cooled with external tubes/radiator, delta connected as on primary and star connected with neutral brought on secondary. The maximum temperature rise should not exceed 45 degree centigrade in oil and 50 degree centigrade in HV/LV winding when measured by the resistance method after continuous full load run in ambient temperature the transformer shall confirming to IS 2026, 1997 and comprising of following accessories :-(a) 01 No Cable end box on HV side consisting of with 03 Nos porcelain bushing with bushing rods and nuts washers and cable glands suitable for XLPE cable 3 Core 120 Sqmm including cable joint complete adopter box(b) 01 No cable end box on LV secondary side consisting of 04 Nos porcelain bushing with bushing rods and nuts washers and cable glands suitable for XLPE cable 3.5 Core 185 Sqmm including cable joint complete adopter box(c) Oil conservator with filter type drain valve and oil level gauge.(d) Dehydrating breather with first filling of dehydrating agent.(e) Explosive vent.(f) Thermometer Pocket.(g) Two earthing terminal on tank body to facilitate fixing of 32x6mm GI Strip.(h) One No thermometer dial type vapour pressure type having range 0-120 degree centigrade with maximum temperature indicator and re-setting device to maximum temperature including needle of temperature gauge max reading panted terminal.(j) Rating plate with terminal plate.(k) Oil drain filter valve.(l) Oil filling hole on top cover with plug.(m) Air release valve/plug.(n) 4 Nos plain solid cast steel detachable rollers.(o) Extra bushing for neutral out side the cable box providing independent earthing for neutral.(p) First fill of transformer oil confirming to relevant IS and tested upto 60KV dielectric strength. |
| 4 | All as per item No. 2 here in before but transformer of 100 KVA capacity. |
| 5 | Supply, laying & testing cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 11000 Volts grade with stranded aluminium conductor, of size 95 sq mm 3 core, complete all as specified and directed by Engr-in-charge. |
| 6 | Supply, laying & testing cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor, of size 95 sq mm 3.5 core, complete all as specified and directed by Engr-in-charge. |
| 7 | Supply, laying & testing cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor, of size 70 sq mm 3.5 core, complete all as specified and directed by Engr-in-charge. |
| 8 | Excavation in trenches in hard/dense soil not exceeding 1.5 mtr in width and not exceeding 1.5 mtr in depth for laying of cables up to proper level and for foundation, complete all as specified and directed by Engr-in-charge. |
| 9 | Returning, filling in including spreading, levelling, watering and well ramming in layers not exc 25 cm in hard/dense soil complete all as specified and directed by Engr-in-charge. |
| 10 | Removing surplus excavated material to a distance not exc 50 meter and depositing where directed at a level not exc 1.5 meter above the starting point complete all as specified and directed by Engr-in-charge. |
| 11 | Supply and filling dry river sand in trenches including spreading for cushioning of LT UG cable and punning down complete all as specified and directed by Engr-in-charge.Note : Only punned down thickness shall be measured and paid |
| 12 | M&L for well burnt sub class ‘B’ bricks as mechanical protection to under ground cables laying with length of the bricks equal to the width of the trench complete all as specified and directed by Engr-in-charge. |
| 13 | M&L for cement concrete 1:4:8, type D2 (using 40 mm graded stone aggregate) as in foundation fillings and mass concrete complete all as specified and directed. |
| 14 | M&L for cement concrete 1:2:4, type B1 (using 20 mm graded stone aggregate), as in coping of poles smooth finishing without using extra cement complete all as specified and directed. |
| 15 | M&L for cement concrete 1:3:6, type C2 (using 40 mm graded stone aggregate) as in foundation fillings and mass concrete complete all as specified and directed. |
| 16 | S&F steel tubular swaged poles complete with MS base plate continuously welded to pole, taper plug, bolts, nuts & screws as specified type 410 SP- 55 (11 metres long ) including two coat of black bituminous paint internally throughout and externally upto embedded portion and including applying two coats of synthetic enamel paint over a coat of red oxide primer with black and white strip of 30 cm each upto 1.5 m height and two coats of aluminium paint over a coat of red oxide primer externally on remaining exposed surface after eraction in position including preparation of surface, complete all as specified and directed. |
| 17 | S&F in repair cross arms bracing supports, clamps and back plate fabricated from structural steel sections including nuts, bolts, washers, welding, Anti climbing device, bending cold or hot, drilling holes for bolts in any shape or size as indicated or directed and inclusive of one primer coat of red oxide zinc chrome, one under coat and one finishing coat of aluminium paint all as specified and directed. |
| 18 | S&F lightning arrester HT 11 KV 10 KA station class, complete all as specified and directed. |
| 19 | S&F HT 11 KV outdoor type gang operated air - break switch suitable for horizontal or vertical mounting rotating type complete with dropout fuse having 12 insulators of rating upto 200 Amps includes of GI pipe required for operation complete all as specified and directed. |
| 20 | M&L danger notice plate of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with M.S. clamps, bolts and nuts of approved size, for HT, 25x20cm size, complete all as specified and directed. |
| 21 | Supply and laying GI pipe 80 mm bore light grade with fitting for cable protection, complete all as specified and directed. |
| 22 | S&F for cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 sqmm to 95 sqmm, complete all as specified and directed by Engr-in-charge. |
| 23 | Construction of transformer shed for transformer of capacity upto 100 KVA shown on drg No Drg No CESZ/TD-1110/2011 Sheet 1/1 and 2/2 dated 01.12.11 complete all as specified and directed by Engr-in-Charge. |
| 24 | Supply testing and commissioning of LT panel board made out of 2.00 mm thick CRCA sheet and 50 x 50 x 6 mm thick angle iron frame duly power coated indoor type suitable for 3 phase 4 wire system 415 Volts 50 HZ with copper bus bar of capacity 500 amps with epoxy insulators pre wired with single core PVC insulated multistranded copper conductor cable 1100 Volts grade with digital volts meter 0-500 volts and ammeter 0-500 amps with suitable CTs and LED type indicator lamps for 3 phase and selector switch for Volt meter and Ammeter, danger notice board etc. All switch gear must be placed individually cubicle and provision of cable glands for incoming and out going cable as per existing size cable. The LT panel board should comprising of the following .(a) MCCB confirming to IS 13947(P-2) 4 pole 200 Amps, 415 Volts AC 50 HZ adjustable type, breaking capacity 15 KA - 01. Make: Standard / Havells/ C&S. (b) MCCB confirming to IS 13947(P-2) 4 pole 100 Amps , 415 Volts AC 50 HZ adjustable , breaking capacity 15 KA- 02Nos . Make: Standard /Havells/ C&S .Note :- The cost of panel board shall be deemed inclusive of all necessary civil works for fixing and installation. Please Enable Macros to View BoQ information |
| 25 | Supply testing and commissioning of LT panel board made out of 2.00 mm thick CRCA sheet and 50 x 50 x 6 mm thick angle iron frame duly power coated indoor type suitable for 3 phase 4 wire system 415 Volts 50 HZ with copper bus bar of capacity 500 amps with epoxy insulators pre wired with single core PVC insulated multistranded copper conductor cable 1100 Volts grade with digital volts meter 0-500 volts and ammeter 0-500 amps with suitable CTs and LED type indicator lamps for 3 phase and selector switch for Volt meter and Ammeter, danger notice board etc. All switch gear must be placed individually cubicle and provision of cable glands for incoming and out going cable as per existing size cable. The LT panel board should comprising of the following .(a) MCCB confirming to IS 13947(P-2) 4 pole 200 Amps, 415 Volts AC 50 HZ adjustable type, breaking capacity 15 KA - 01. Make: Standard / Havells/ C&S. (b) MCCB confirming to IS 13947(P-2) 4 pole 100 Amps , 415 Volts AC 50 HZ adjustable , breaking capacity 15 KA- 02Nos . Make: Standard /Havells/ C&S .Note :- The cost of panel board shall be deemed inclusive of all necessary civil works for fixing and installation. Please Enable Macros to View BoQ information |
