Repairs to 300 HP ATS starter of lift irrigation scheme Janbazpora-II, 300 HP motor of LI.S Janbazpora-I and 250 Amp MCCB of L.I.S Azadpora.

Amount

Repairs to 300HP Starter unit no 02. at L.I.S Janbazpora-II by way of: Disconnecting of fully automatic Autotransformer Starter from the main circuit, then dismantling of damaged parts from the starter which comprises of following specification: a) Providing and fitting of new fuse set of reputed make as per sample b) Repairs to ATS by way of : c) Isolating and disconnecting of all incoming and outgoing leads from auto transformer starter. Draining out transformer oil from the oil tank and collecting in a suitable container taking out damaged auto transformer coil assembly from oil tank at site for repairs. The job then involves providing and fitting of new auto transformer connection of three legs fabricated out of copper wire of standard size and quality (6kg ).Providing, fitting of insulation material such as cardboard, latheride paper, cotton tape, PVC paper, varnishing of three legs, etc. Replacement of damaged brass bolts with nuts as per sample of incoming and outgoing connections two kg. Reassembling of auto transformer at site & testing it on full load. The job also includes the charge of skilled labours, other tools & tackles for the completion of work. Deducting cost of scrap @ 80% of the total value of copper. (I.e. 4.8 kg). The job also includes the charge for filling of fresh T-oil for topping ten litre.

Repairs to 300 HP motor of lift irrigation scheme Janbazpora-I by way of disconnecting motor leads, dismantling of motor, taking out rotor from the stator with the help of skilled labours, other tools & tackles. The job includes the charge for taking out Driven & non driven bearing carefully, then repairs to bearing seats by way of welding work. After welding work, cleaning bearings with the help of chemical & fitted it to their actual position. The job also includes the charge of checking winding of motor with the help of skilled labour & assembling motor at site & tested on full load. The job also includes the charge of greasing to the bearing three kg. All tools & tackles are arranged by contactor.

Repairs to 250 Amp MCCB of L.I.S Azadpora by way of disconnecting incoming & outgoing connection , then taking out MCCB to Working area with the help of skilled labour, other tools & tackles b. Repairs to MCCB by way of opening front cover with the help of screw driver, then removing of accumulated carbon from contact points by applying carbon tetra chloride active chemical to make the surface clean. Adjustment of all protection devices, removing of dirt, dust and other greasy substance with the help of highly volatile thinner/acetone and blowing of compressed air inside the starter compartment c. The job also includes the charge of p/f of spreader terminal set of six d. Then fitted back to its actual position after proper repairs & tested on full load.

Asif Engineering Works

City Engineering Works