SPECIAL REPAIR OF ELECTRIC TRANSFORMERS

Amount

Taking down carefully old BER unserviceable transformer of capacity 100 to 400 KVA from the plinth and depositing the same to E/M store yard complete, all as specified and directed.

Supply, install, testing and commissioning step down distribution transformer 400KVA Copper wound outdoor type 11000/433 volts 3 phase 4 wire 50 cycle naturally oil cooled type suitable for outdoor installation connection delta on HV side and star on LV side with neutral brought out LT Side with solid earthing system with off load tap changing switch HT Side to vary secondary voltage in step of +2.5 % each in 7 steps within limit and with standard accessories like oil, temperature with indicator for highest temperature gauge , silica gel , breather assembly , oil conservator tank with oil filling hole duly plugged with bare HV and LV bushing , CI roller wheel, lifting lugs , explosion vent , air release plug, earthing terminal, oil drain valve of gun metal with plug , oil filter valve with plug, name rating and diagram plate oil level indicator and other fitting accessories essentially required as standard requirement including first fill of oil, Level 2 rating as ministry of power notification No SO:4062 dated 16 Dec 2016 (as amended / revised as on date) including connectioncomprising of the following :-

(a) LT SIDE (Secondary side) : Consisting 4 Nos porcelain bushing with copper rods and cable end box complete with nuts bolts and washers for connections 300 sqmm 3.5 core LT 1100 volts grade XLPE insulated and PVC Sheathed heavy duty armored cable including joint and jointing material complete (b) HT side (Primary Side) Consisting 3 Nos porcelain bushing with copper rods complete with nuts and washers with cable gland HT cable end box suitable for outdoor mounting transformer 11000 Volts grade XLPE insulated and PVC Sheathed heavy duty armored cable including joint and jointing material complete (c) Oil conservator with filter type drain valve and oil level gauge. (d) De hydrating breather with first fill of de hydrating (Silica Gel) (e) Explosive vent and thermometer pocket on tank cover , oil level gauge, oileddrain filter , lifting lugs , oil filling holes with cap/plug with connection plate complete , air release valve plug and 4 Nos plain solid cast steel detachable rollers (f) One no 100 mm dia , dial type thermometer vapor pressure type having range 1 to 120 degree Celsius with metal guard having maximum perimeter temperature reading indicator (with dual pointer) resetting device (g) Two earthing terminal on tank cover to facilitate fixing of 32 x 6 mm galvanized iron earth strips for earthling of natural and body (h) Rating plate and terminal marking plate (j) Extra bushing for neutral on LT Side for providing independent set of earthling for natural (k) first filling of new and unused transformer oil IS-335 Marked filter and tested for more than 40 KV dielectric strength at 2.5 mm air gap between testing electrode. Transformer shall be complete with specifications as per IS 1180 complete all as specified and as directed by Engr-In-Charge/GE.

Supply, install, testing and commissioning step down distribution transformer 315 KVA Copper wound outdoor type 11000/433 volts 3 phase 4 wire 50 cycle naturally oil cooled type suitable for outdoor installation connection delta on HV side and star on LV side with neutral brought out LT Side with solid earthing system with off load tap changing switch HT Side to vary secondary voltage in step of +2.5 % each in 7 steps within limit and with standard accessories like oil, temperature with indicator for highest temperature gauge , silica gel , breather assembly , oil conservator tank with oil filling hole duly plugged with bare HV and LV bushing , CI roller wheel, lifting lugs , explosion vent , air release plug, earthing terminal, oil drain valve of gun metal with plug , oil filter valve with plug, name rating and diagram plate oil level indicator and other fitting accessories essentially required as standard requirement including first fill of oil , Level 2 rating as ministry of power notification No SO:4062 dated 16 Dec 2016 (as amended / revised as on date) including connection comprising of the following :-

(a) LT SIDE (Secondary side) : Consisting 4 Nos porcelain bushing with copper rods and cable end box complete with nuts bolts and washers for connections 240 sqmm 3.5 core LT 1100 volts grade XLPE insulated and PVC Sheathed heavy duty armored cable including joint and jointing material complete (b) HT side (Primary Side) Consisting 3 Nos porcelain bushing with copper rods complete with nuts and washers with cable gland HT cable end box suitable for outdoor mounting transformer 11000 Volts grade XLPE insulated and PVC Sheathed heavy duty armored cable including joint and jointing material complete (c) Oil conservator with filter type drain valve and oil level gauge. (d) De hydrating breather with first fill of de hydrating (Silica Gel) (e) Explosive vent and thermometer pocket on tank cover , oil level gauge, oileddrain filter , lifting lugs , oil filling holes with cap/plug with connection plate complete , air release valve plug and 4 Nos plain solid cast steel detachable rollers (f) One no 100 mm dia , dial type thermometer vapor pressure type having range 1 to 120 degree Celsius with metal guard having maximum perimeter temperature reading indicator (with dual pointer) resetting device (g) Two earthing terminal on tank cover to facilitate fixing of 32 x 6 mm galvanized iron earth strips for earthling of natural and body (h) Rating plate and terminal marking plate (j) Extra bushing for neutral on LT Side for providing independent set of earthling for natural (k) first filling of new and unused transformer oil IS-335 Marked filter and tested for more than 40 KV dielectric strength at 2.5 mm air gap between testing electrode. Transformer shall be complete with specifications as per IS 1180 complete all as specified and as directed by Engr-In-Charge/GE.

Supply, install, testing and commissioning step down distribution transformer 250 KVA Copper wound outdoor type 11000/433 volts 3 phase 4 wire 50 cycle naturally oil cooled type suitable for outdoor installation connection delta on HV side and star on LV side with neutral brought out LT Side with solid earthing system with off load tap changing switch HT Side to vary secondary voltage in step of +2.5 % each in 7 steps within limit and with standard accessories like oil, temperature with indicator for highest temperature gauge , silica gel , breather assembly , oil conservator tank with oil filling hole duly plugged with bare HV and LV bushing , CI roller wheel, lifting lugs , explosion vent , air release plug, earthing terminal, oil drain valve of gun metal with plug , oil filter valve with plug, name rating and diagram plate oil level indicator and arching horn set and other fitting accessories and for standard requirement including first fill of oil , three star rating as ministry of power notification No SO:4062 dated 16 Dec 2016 (as amended / revised as on date) including connection comprising of the following :-

(a) LT SIDE (Secondary side) : Consisting 4 Nos porcelain bushing with copper rods complete with nuts and washers for connections 185 sqmm 3.5 core LT 1100 volts grade XLPE insulated and PVC Sheathed heavy duty armored cable including joint and jointing material complete (b) HT side (Primary Side) Consisting 3 Nos porcelain bushing with copper rods complete with nuts and washers with cable gland HT bushing suitable for outdoor mounting transformer 11000 Volts grade XLPE insulated and PVC Sheathed heavy duty armored cable including joint and jointing material complete (c) Oid conservator with filter type drain valve and oil level gauge. (D) De hydrating breather with first fill of de hydrating (Silica Gel) (E) Explosive vent and thermometer pocket on tank cover , oil level gauge , oiled drain filter , lifting lugs , oil filling holes with cap/plug with connection plate complete , air release valve plug and 4 Nos plain solid cast steel detachable rollers (F) One no 100 mm dia , dial type thermometer vapor pressure type having range 1 to 120 degree Celsius with metal guard having maximum perimeter temperature reading indicator resetting device (G) Two earthing terminal on tank cover to facilitate fixing of 32 x 6 mm galvanized iron earth strips for earthling of natural and body (H) Rating plate and terminal marking plate (J) Extra bushing for neutral on LT Side for providing independent set of earthling for natural (K) first filling of new and unused transformer oil IS-335 Marked filter and tested for more than 40 KV dielectric strength at 2.5 mm air gap between testing electrode. Transformer shall be complete with specifications as per IS 1180, level-2 complete, all as specified and as directed by Engr-In-Charge/GE.

Supply, install, testing and commissioning step down distribution transformer 200 KVA Copper wound outdoor type 11000/433 volts 3 phase 4 wire 50 cycle naturally oil cooled type suitable for outdoor installation connection delta on HV side and star on LV side with neutral brought out LT Side with solid earthing system with off load tap changing switch HT Side to vary secondary voltage in step of +2.5 % each in 7 steps within limit and with standard accessories like oil, temperature with indicator for highest temperature gauge , silica gel , breather assembly , oil conservator tank with oil filling hole duly plugged with bare HV and LV bushing , CI roller wheel, lifting lugs , explosion vent , air release plug, earthing terminal, oil drain valve of gun metal with plug , oil filter valve with plug, name rating and diagram plate oil level indicator and arching horn set and other fitting accessories and for standard requirement including first fill of oil , three star rating as ministry of power notification No SO:4062 dated 16 Dec 2016 (as amended / revised as on date) including comprising of the following :-

(a) LT SIDE (Secondary side) : Consisting 4 Nos porcelain bushing with copper rods complete with nuts and washers for connections 120 sqmm 3.5 core LT 1100 volts grade XLPE insulated and PVC Sheathed heavy duty armored cable including joint and jointing material complete (b) HT side (Primary Side) Consisting 3 Nos porcelain bushing with copper rods complete with nuts and washers with cable gland HT bushing suitable for outdoor mounting transformer 11000 Volts grade XLPE insulated and PVC Sheathed heavy duty armored cable including joint and jointing material complete (c) Oid conservator with filter type drain valve and oil level gauge. (D) De hydrating breather with first fill of de hydrating (Silica Gel) (E) Explosive vent and thermometer pocket on tank cover , oil level gauge , oiled drain filter , lifting lugs , oil filling holes with cap/plug with connection plate complete , air release valve plug and 4 Nos plain solid cast steel detachable rollers (F) One no 100 mm dia , dial type thermometer vapor pressure type having range 1 to 120 degree Celsius with metal guard having maximum perimeter temperature reading indicator resetting device (G) Two earthing terminal on tank cover to facilitate fixing of 32 x 6 mm galvanized iron earth strips for earthling of natural and body (H) Rating plate and terminal marking plate (J) Extra bushing for neutral on LT Side for providing independent set of earthling for natural (K) first filling of new and unused transformer oil IS-335 Marked filter and tested for more than 40 KV dielectric strength at 2.5 mm air gap between testing electrode. Transformer shall be complete with specifications as per IS 1180, level-2 complete, all as specified and as directed by Engr-In-Charge/GE.

Supply, laying and testing cable XLPE Insulated , PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 300 sq mm 3.5 core incl end joint lugs etc complete, all as specified and directed by Engineer-in-charge

Supply, laying and testing cable XLPE Insulated, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 185sq mm 3.5 core incl end joint lugs etc complete, all as specified and directed by Engineer-in-charge

Supply, laying and testing cable XLPE Insulated, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 240 sq mm 3.5 core incl end joint lugs etc complete, all as specified and directed by Engineer-in-charge

Material and labour for outdoor type cable end termination kit, cold shirnkable jointing material and accessories complete sutiable for 11 KV HT XLPE underground cable size 300 to 185 Sqmm 3 Core including testing after jointing complete, all as specified and directed by Engr-in-Charge.

Supply and laying for cable protection DWC HDPE pipe ISI marked suitable for cable protection of OD 110 & ID 0.95 mm complete all as specified and directed by Engineer-in-charge

Excavation in trenches not exc. 1.50 m wide and not exc. 1.50 m in depth for foundation etc. or for laying of pipes and fittings, cables, HT / LT poles, stay assembly etc including forming bottom surfaces to required level and slope and getting out in soft / loose soil complete, all as specified and directed by Engineer-in-charge .

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc. 25 cm thick in each layer as in soft / loose soil soil complete, all as specified and directed by Engineer-in-charge.

Removing surplus excavated material (SOIL) to distance not exc. 50 m and depositing where directed at a level not exc. 1.50 m above the starting point complete, all as specified and directed by Engineer-in-charge

Material and labour for earthing complete with galvanised earth plate electrode 600 X 600 X 6 mm thick burried directly in ground (earth pit not less than 2.25 m below ground level) with top edge of earth plate not less than 1.5 m below normal ground level, connected to galvanised earth strip 32 X 6 mm size by means of nuts, bolts, check nuts & washers of galvanised iron or steel all as shown on electrical plate No. 3 of MES schedule 2009, Part – I (Specifications) and connected to main switch board / main DB’s / earthing test point including all necessary excavation and earth work in any type of soil, adequate quantity of charcoal dust & common salt all around the earth plate minimum 150 mm in all directions with & including watering pipe 20 mm dia GI medium grade, GI funnel made out of 0.63 mm thick GI sheet, wire gauge, 50 mm thick RCC cover in PCC 1:2:4, type B-1 (using 20 mm graded crushed stone aggregate), duly reinforced with 6 mm dia mild steel round bars @ 150 mm both ways center to center with suitable lifting handle to cover, earth pit of PCC 1:3:6 type C-1 (using 20 mm graded crushed stone aggregate), GI protection pipe light grade 40 mm bore up to 7.5 m length from earth electrode & engraving of earth marking on nearby building with CM 1:4 plate size 200 X 150 X 15 mm & painting of earth result etc. including testing on complete, all as specified and directed by Engineer-in-charge NOTE: - 1. ON TESTING AFTER COMPLETION OF JOB, IF DESIRED EARTH RESISTANCE IS NOT MORE THAN 1 OHM OBTAINED, THE EARTHING SHALL BE REDONE BY THE CONTRACTOR WITHOUT ANY EXTRA COST TO GOVT. 2. EXISTING EARTHING 09 NOS WHERE REQUIRED TO BE FIXED IN QUOTED RATE WITHOUT ANY EXTRA COST.

BHARAT ENGINEERS (BID ID -3072192)

Raman Electric Trading Co (BID ID -3070117)

R D Bansal (BID ID -3072108)

Roy and Sons Infrastructures (BID ID -3072394)

Bharat Builder (BID ID -3083039)

MAHESH KUMAR SINGLA CONTRACTOR (BID ID -3071687)