REPAIR REPLACEMENT OF TRANSFORMER

Amount

Material and labour for disconnecting of different capacities transformer from foundation/Four pole structure carefully after taking out necessary electrical connection and depositing to MES store yard including demolition including dismantling earthings, GI pipe and HT/LT cables carefully complete all as specified and directed at site.

Supply, installing, testing and commissioning of outdoor type step down transformer 11000/433 volts (at no load), AC, 3 phase 50 Hz, copper wound type complete with standard fittings, 11 KV 3 phase, LT 433 volts, 3 phase 4 wire with off load tappings on HT side to vary secondary voltage within limit, all as per IS: 1180 (with latest amendments) of capactiy 315 kVA. core type copper wound, oil immersed, naturally cooled, oil nature, air nature (ONAN) with external cooling tubes fins delta connected on primary side (HV) and star connected on secondary side (LV) in accordance with vector symbol DYN-11 (Vector group) with neutral brought out on secondary side (LV side ) and having tapping at ± 5%HV side to be changed by means of hand operated off load tap changer gear. the maximum temparature rise should not exceed 45 degree celsius in oil and 55 degree celsius in HV/LV winding when measured by resistance method after continuous full load run on an ambient temparature of 40 degree celsius. The transformer shall be IS 1180 marked and shall comprise of the following :- (a) 3 Nos porcelain bushing with arcing horn on HV side suitable for 11 KV complete with bushing, copper rods, nut and washers. (b) One cable box on LT side (secondary side) consisting of 04 No of porcelain bushing with copper rod, complete with nuts and washers with two numbers cable glands suitable for reception/ taking out of XLPE insulated heavy duty armoured cable including glands, joints and jointing material complete. (c) Oil conservator with filter type drain valve and oil level gauge (d) Dehydrating breather with first fills dehydrating agents (silca gel) (e) Thermometer pocket on tank cover (f) One number 100 mm dia, dial type thermometer, vapour pressure type having range 0-120 degree celsious wth metal guard having max perimeter reading temprature indicator with resisting device for transformer (g) Two earthing terminal on tank cover to facilitate fixing of 32x6 mm GI earth strip for earhting of neutral and body.

((h) Rating plate and terminal marking plate (i) Oil level gauge (j) Oil drain filter valve (k) Lifting legs (l) Oil filling holes with cap/ plug with connecting plate complete (m) Air release plug (n) Four plain solid cost steel detachable rollers (o) Extra bushing for neutral, outside LT cable box for proving independent earthig for neutral (p) First filling new and unused transformer oil IS-335/93 (fourth version) marked filtered and tested dielectric strength at 2.5 mm air gap between testing electrode as per IS 335. Note: Certification of electric strength shall be submitted by the cotractor after filling the oil

Supply , installing, testing and commissioning of outdoor type step down transformer 11000/433 volts (at no load), AC, 3 phase 50 Hz, copper wound type complete with standard fittings, 11 KV 3 phase, LT 433 volts, 3 phase 4 wire with off load tappings on HT side to vary secondary voltage within limit, all as per IS: 1180 (with latest amendments) of capactiy 200 kVA.core type copper wound, oil immersed, naturally cooled, oil nature, air nature (ONAN) with external cooling tubes/fins delta connected on primary side (HV) and star connected on secondary side (LV) in accordance with vector symbol DYN-11 (Vector group) with neutral brought out on secondary side (LV side) and having tapping at ±5% HV side to be changed by means of hand operated off load tap changer gear. the maximum temparature rise should not exceed 45 degree celsius in oil and 55 degree celsius in HV/LV winding when measured by resistance method after continuous full load run on an ambient temparature of 40 degree celsius. The transformer shall be IS 1180 marked and shall comprise of the following :- (a) 3 Nos porcelain bushing with arcing horn on HV side suitable for 11 KV complete with bushing, copper rods, nut and washers. (b) One cable box on LT side (secondary side ) consisting of 04 No of porcelain bushing with copper rod complete with nuts and washers with two numbers cable glands suitable for reception/ taking out of XLPE insulated heavy duty armoured cable including glands, joints and jointing material complete. (c) Oil conservator with filter type drain valve and oil level gauge (d) Dehydrating breather with first fills dehydrating agents (silca gel) (e) Thermometer pocket on tank cover (f) One number 100 mm dia, dial type thermometer, vapour pressure type having range 0-120 degree celsious wth metal guard having max perimeter reading tempreture indicator with resisting device for transformer (g) Two earthing terminal on tank cover to facilitate fixing of 32x6 mm GI earth strip for earhting of neutral and body.

(h) Rating plate and terminal marking plate (i) Oil level gauge (j) Oil drain filter valve (k) Lifting legs (l) Oil filling holes with cap/ plug with connecting plate complete (m) Air release plug (n) Four plain solid cost steel detachable rollers (o) Extra bushing for neutral, outside LT cable box for proving independent earthig for neutral (p) First filling new and unused transformer oil IS-335/93 (fourth version) marked) filtered and tested dielectric strength at 2.5 mm air gap between testing electrode asper IS 335. Note: Certification of electric strength shall be submitted by the cotractor after filling the oil

Supply , installing, testing and commissioning of outdoor type step down transformer 11000/433 volts (at no load), AC, 3 phase 50 Hz, copper wound type complete with standard fittings, 11 KV 3 phase, LT 433 volts, 3 phase 4 wire with off load tappings on HT side to vary secondary voltage within limit, all as per IS: 1180 (with latest amendments) of capactiy 100 kVA.core type copper wound, oil immersed, naturally cooled, oil nature, air nature (ONAN) with external cooling tubes/fins delta connected on primary side (HV) and star connected on secondary side(LV) in accordance with vector symbol DYN-11 (Vector group) with neutral brought out on secondary side (LV side ) and having tapping at ±5%HV side to be changed by means of hand operated off load tap changer gear. the maximum temparature rise should not exceed 45 degree celsius in oil and 55 degree celsius in HV/LV winding when measured by resistance method after continuous full load run on an ambient temparature of 40 degree celsius. The transformer shall be IS 1180 marked and shall comprise of the following :- (a) 3 Nos porcelain bushing with arcing horn on HV side suitable for 11 KV complete with bushing, copper rods, nut and washers. (b) One cable box on LT side (secondary side) consisting of 04 No of porcelain bushing with copper rod complete with nuts and washers with two numbers cable glands suitable for reception/ taking out of XLPE insulated heavy duty armoured cable including glands, joints and jointing material complete. (c) Oil conservator with filter type drain valve and oil level gauge (d) Dehydrating breather with first fills dehydrating agents (silca gel) (e) Thermometer pocket on tank cover (f) One number 100 mm dia, dial type thermometer, vapour pressure type having range 0-120 degree celsious wth metal guard having max perimeter reading tempreture indicator with resisting device for transformer (g) Two earthing terminal on tank cover to facilitate fixing of 32x6 mm GI earth strip for earhting of neutral and body

(h) Rating plate and terminal marking plate (i) Oil level gauge (j) Oil drain filter valve (k) Lifting legs (l) Oil filling holes with cap/ plug with connecting plate complete (m) Air release plug (n) Four plain solid cost steel detachable rollers (o) Extra bushing for neutral, outside LT cable box for proving independent earthig for neutral (p) First filling new and unused transformer oil IS-335/93(forth version) marked filtered and tested dielectric strength at 2.5 mm air gap between testing electrode asper IS 335. Note: Certification of electric strength shall be submitted by the cotractor after filling the oil

Supply, install, testing and commissioning complete Transformer Protection CURRENT TRANSFORMER :- Supply of outdoor 72.5 KV, 31.5 KA for 3 sec, oil cooled, Hermetically sealed, Wound Primary Type, Three Core live tank Type Current Transformer with Porcelain Insulators having a creepage distance of 25 mm/kV i.e. : 1813 mm (Min.) Ration 150-75/1-1-1 Amps. HSV : 72.5kV, IL : 72.5/140/325kVp Core 1 : 30VA, Class 0.2S ISF<=5 Core 2 : 30 VA, Class 5P20 Core 3 : Class ' PS.......t. RATIO : 1/75-150 avK>=300V Rct @ 75 degree C <=5 ohms i.e. @Vk/2 <=30mA STC : 31.5 kA/3 SEC FREQ. 50Hz Insulation Class : A Complete in all respect to the entire satisfaction of the Engineer-in-Charge. Note : Complete wiring is included in this quoted rate.

Material and labour for provision of transformer plinth of size 2.5 x 2.5 mtrs complete with fencing PCC foundation, RCC Slab and gravel filling all around all as shown TD-251 Sheet 1/1 all as specified and as directed.

Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5m in depth for laying of pipe, cable, foundation of electric pole etc and getting out in soft/loose soil, complete all as specified. all as specified and as directed.

All as per Srl Item No 7.00 here-in-before but exceeding more than 1.5 m in depth

Returning, filling in including spreading leveling watering and well ramming in layers not exc. 25 cm thick complete all as specified and directed.

.Removing surplus soil to a distance not exc. 50 M and depositing where directed at a level not exceeding 1.5 Mtr above the starting point complete all as specified and directed.

Clean dry sand laid in trenches/ducts for bedding and cushioning to cable, 8 cm thick before laying the cable and 15 cm thick after laying the cable including punning down the sand to over all 18 cm thickness, levelling and consolidation complete all as specified and as directed. Note:- (i) Consolidated/ punned sand will be measured for payment purpose. (ii) Sand shall be same as specified for plastering work all as specified and as directed.

Material and labour for Un-reinforced precast concrete cable cover class HV, type 1, flat, size 300 mm X 180mm x 40mm complete all as specified and directed.

Supplying and laying un-reinforced precast concrete cable cover, class LV, Type 1, flat of size 250 mm x 150 mm x 40 mm for cable protection, confirming to IS : 5820-1970 and having minimum average load breaking strength 200 Kg/Sqcm complete all as specified. Note : The sample of precast concrete cable cover will be got tested from govt. approved lab as decided by GE and cost of testing is deemed to be included in unit rate of this item

Material and labour for MS tube light grade galvanised of size 80mm dia with all fittings and laid in trenches / under roads/ under floors/ fixing on poles and walls with clamps complete all as specified and directed.

All as per Srl Item No 14.00 here-in-before but of size 100 mm dia.

Supply, laying, jointing and testing HT XLPE cable, cross section area 240 Sqmm, 3 core, 11000 V, screened, PVC 'E' grade insulated bedded, galvanised steel (heavy duty ) strip or wire armoured with aluminium conductor, pressure earthed system, conforming to IS 7098 (Part-1 ) 1977 and Part-II of 1985, laid in pipes/ ducts/ trenches, under floor and roads or fixed to wall etc including taking out old unserviceable cable any type complete all as specified and directed.

All as per Srl Item No 16.00 here-in-before but of size 95 sqmm X 3 core

Supply,laying, commissioning and testing or passing through pipe, XLPE insulated, armoured, electric power UG cable (Heavy duty) with aluminium conductor, 1100 volts grade in duct/ trenches for small length for extension/replacement of the defective cable of nominal cross sectional area 300 sqmm 3.5 core including brass compression cable gland, terminal aluminium lugs etc making connection and testing complete all as specified and directed. Note :-(i) Pipes and bricks for protection, mild steel clamp nut and bolts sand cushioning shall be measured and paid separately.all as specified and as directed.

All as per item No.18.00 here-in before but for cable of size 3.5 core 240 sqmm.

All as per item No. 18.00 here-in before but for cable of size 3.5 core 120 sqmm.

Boring of holes under road, pavement, hard standing by trench-less technology and necessary mannual machine suitable to pass through up to 100 mm bore GI tubing and cable etc complete all as specified and directed.

Material and labour for Earthing complete with galvanized earth plate electrode 60 cm x 60cm x 6mm thick buried directly in ground to the depth of not less than 2.25 mtr below ground level with top edge of earth plate or a depth not less than 1.50 m below ground level connected to GI strip 32 x 6mm as earth lead by means of galvanized bolts, nuts check nuts and washers and necessary excavation and earth work PCC 1:2:4 type B-1 using 20mm graded brick aggregate for earth pit RCC cover, charcoal & common salt filled in alternate layers funnel with 20mm bore light grade watering pipe, 40mm dia GI pipe light grade for protection of GI strip, wire mesh and connected to earth point including testing on all as specified and shown in electric plate No 3 of SSR part I. all as specified and as directed.

Material and labour for Earthing complete with galvanized earth plate electrode 60 cm x 60cm x 6mm thick buried directly in ground to the depth of not less than 2.25 mtr below ground level with top edge of earth plate or a depth not less than 1.50 m below ground level connected to GI wire 4mm dia by means of galvanized bolts, nuts check nuts and washers and necessary excavation and earth work PCC 1:2:4 type B-1 using 20mm graded brick aggregate for earth pit RCC cover, charcoal & common salt filled in alternate layers funnel with 20mm bore light grade watering pipe, 15mm dia GI pipe light grade for projection of earth lead, wire mesh and connected to earth point including testing on all as specified and shown in electric plate No 3 of SSR part I. all as specified and as directed.

Supply & Fix 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 70 to 95 sqmm complete all as specified and directed.

All as per Srl Item No 24.00 here-in-before but of size 120 to 185 Sqmm.

All as per Srl Item No 24.00 here-in-before but of size 240 to 300 sqmm.

Material and labour for Cable jointing kit for 11 KV (earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core, XLPE armoured aluminium conductor cable of size 70 to 95 sqmm complete all as specified and directed.

All as per Srl Item No 27.00 here-in-before above but of size 120 to 185 sqmm.

All as per Srl Item No 27.00 here-in-before but of size 240 to 300 sqmm.

Material & Labour for Cable jointing kit for 11 KV (earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core, XLPE armoured aluminium conductor cable of size 70 to 95 sqmm complete all as specified and directed.

All as per Srl Item No 30.00 here-in-before but of size 120 to 185 sqmm.

All as per Srl Item No 30.00 here-in-before of size 240 to 300 sqmm.

Anti-climbing device; spikes type fabricated out of M.S. bars (round, square and flat) including nuts, bolts, washers and welding in two halves made to shape to suit the cross section of the pole complete all as specified and as directed.

Material and labour for PCC 1:3:6 type C-1 using 20 mm graded stone aggregate for coping around the pole strut above ground level, foundation of stay etc. including necessary form work and finishing the surface fair and even without using extra cement all as directed and specified.

Material and labour for PCC 1:4:8 type D-2 using 40 mm graded broken stone aggregate as in mass concrete in foundations etc . complete all as specified and directed.

Material and labourfor GI strip 32 x 6 mm as earth continuity lead beyond test point fixed to wall on batten or recess or chases or buried in ground or drawn in conduit pipe complete all as specified and directed.

Material and labour for Cross arms, bracing, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts in any shape or size as indicated or directed and inclusive or one primer coat, one under coat and one finishing coat of super enamel paint complete all as specified and directed.

Supply and fix Lightening arrestor Non Linear metal oxide type conform to IS 3070 (part I) complete with all fittings transmission classes discharge Capacity 65 KA suitable for 11 KV out door type complete all as specified and directed including taking down the unserviceable LA. Complete all as specified and as directed.

R D Bansal (BID ID -3111431)

Jawandha Enterprises (BID ID -3111425)

MAHESH KUMAR SINGLA CONTRACTOR (BID ID -3110173)

Kaul Enterprises (BID ID -3111417)

AR CONSTRUCTIONS (BID ID -3111690)