Repairing of 100KVA HT Transformer/Upgraducation of Electric Sub Station at various pumping station of PHE Mech. Sub Division Rajouri.

Amount

Mechanical Items

Up Graducation of 100KVA electric substation to 250KVA electric sub station at pumping station DC Dug well Rajouri Town by way of providing/fitting of Link set, LA set(station type),DOF set, HT disc-03no, channel , angle iron , flat iron etc required at site for making transformer bed, stringing aluminium conductor. Providing and fitting of bus bar fuse link system. Providing /fitting of AL cable 300mm sq 3.5 core from LT bush side of transformer to bus bar fuse system and then to LT pole near the electric sub station. Complete earthling of electric substation. Job includes carriages of 250KVA transformer from store to road side at Bella colony and stack at safe place then shifting by head load carriages/wooden log rope skilled/unskilled labour up to pumping station.Providing/Filling of fresh T. Oil approx. 450ltr. P/F of 200Amp. Main Switch on exists MainSwitch by providing of thimbles nut bolts etc. Complete job includes cost of material and labour charges at site of work.

Major Repairing of 100KVA electric sub station with replacement of worn out electro-mechanical equipments at pumping station New Gurdhanbala . The job involves cutting the HT supply of 100 KVA electric transformer. Dismantling of HT/LT connections, lifting up the damaged transformer from the installed position with the help of chain pulley block and manual labour and stacking it at suitable place. Then shifting it from Site to workshop by way of loading in the vehicle with the help of manual labour there on dismantling/ disconnection the connections of HT bush set & LT bush rod and taking out simultaneously, scratching the old and damaged core sheets and other internal connections by using special tools and tackles, extracting out core of transformer using gas cutter thereby dismantling each limp of Aluminum wound HT coils, extracting HT coils from core and its damaged insulations and draining out all transformer oil from its chamber servicing , cleaning and flushing the oil tank by using chemical to clean all carbon deposits and plugging of leakages. Providing and fitting of new HT leg coils- 06Nos. and LT leg Coils- 03 Nos. in place of damaged HT and LT coils fabricated of enameled Aluminum wire of required gauge and also providing and fitting of HT & LT metal parts, silicate breather set of gasket, oil level gauge, LT terminal plate, sundry items and insulations, insertion of HT coils /LT coils and then making the internal connection of the coil to make star connections on LT side and delta connections of HT side by way of copper gas welding etc. placing the core in the oven for removal of any type of moisture and for getting megger value. Complete assembling of transformer, topping up of the new transformer, oil 60 Approximately. and then putting the transformer, on no load till required megger value is attained. The complete job includes cost of material and labour charges ,carriages charge at site of work.

Repairs to 100 KVA HT transformer installed at Pumping Station Bhatian by way of complete dismantling of transformer. Draining out transformer oil from the oil tank, servicing cleaning and flushing of oil tank by using chemicals to clean all the carbon deposits. Dismantling/extraction of all the damaged coils, Providing and fitting of new HV coils 42Kgs.,LV coils 27 Kgs., replacing lamination core 6 Kgs.Assembling of the transformer after providing and fitting of LV, HV bushe sand metal parts, set of gaskets, sundry items and insulation etc.,filling of old T.Oil into the tank after cleaning/dehydration the oil properly and providing and filling of fresh transformer oil 50 ltrs. to top up the level then putting the transformer on heat till required megger valve is obtained and installation, testing and commissioning it on no load followed by on full load at site.Complete job including cost of material and labour charges and rebate on old material.

Repairs to 100 KVA HT transformer installed at P/Stn.Dhanore Lavara D/Well. by way of complete dismantling of transformer. Draining out transformer oil from the oil tank, servicing cleaning and flushing of oil tank by using chemicals to clean all the carbon deposits. Dismantling/extraction of all the damaged coils, Providing and fitting of new HV coils 42Kgs.,LV coils 27 Kgs.,Assembling of the transformer after providing and fitting of LV, HV metal parts, set of gaskets, sundry items and insulation etc.,filling of old T. Oil into the tank after cleaning/dehydration the oil properly and providing and filling of fresh transformer oil 40 ltrs. to top up the level then putting the transformer on heat till required megger valve is obtained and Installation, testing and commissioning it on no load followed by on full load at site.Complete job including cost of material and labour charges

G S ENGINEERING WORKS

BEE AAR ENTERPRISES