Assessment of damages if any to 2.5 MVA, 33/11 KVA Transformer of Bay-I at WSS Tangnar Stage-2nd.

Amount

De-Commissioning/Isolation of 2.5 MVA, 33/11 kV Power Transformer to reassess its health by an electrical expert within the yard in presence of departmental engineers by performing Non Destructive Tests like ratio test, resistance test & IR test using testing equipment like Turn Ratio Test Meter, Mega/ Micro Ohm Meter for detection of the actual cause for unwanted buzzing sound .

Lifting/Removal of 2.5 MVA, 33/11 kVA Power Transformer from the Transformer bed if tests are found unsatisfactory by engaging 20 T capacity Hydraulic Crane and shifting the same by way dragging & rotation inside the pump house (having an arrangement of EOT crane) for Physical assessment of damages if any. The job involves hiring of 02 labourers for handling of equipment, monitoring its movement on crane and signaling the crane operator for ensuring obstruction free and safe handling of the transformer.

Draining out of available Transformer Oil from the Tank and storing same in the empty barrels, Dismantling the top lid of the Transformer after removing all fasteners including HT Bushings and connections from protective devices like Buchholz Relay, Oil and Winding Temperature sensors etc. Lifting the Coil-Core assembly from the transformer tank using available EOT Crane inside the pump house and placing same at a convenient place for physical examination and assessment of HT Coils, HT Tappings, Tap Changer and its connections for any damages by an electrical expert in presence of departmental engineers. The job also includes quality testing of Transformer Oil. The job involves cost on account of hiring of 02 No. skilled workers along with required tools & tackles. After physical examination and assessment, the said transformer is to be reassembled to its original shape to prevent ingression of unwanted matter.

M/S SUPREME ENTERPRISES