Public Works Department Tender

Servicing/Repair of 250 KVA Automatic Voltage Servo Stabilizer by way of replacement of control cards 3 nos, Limit switches-3nos with carbon brushes and holders with bushes, repair/replacement of Voltmeter. Lubrication of all the gear of servo motor, servicing of oil chamber by checking of leakage and plugging if any by way of welding and applying adhesive to make it to leak proof. Job also includes replacing of damaged internal control wiring, repairs to internal wiring, providing and fitting of all the incoming and outgoing connection plates with copper terminals, cleaning and tightening of all contact by using sand paper and then charging the stabilizer on no load for 6 hours and then testing the stabilizer on full load. Job included shifting back Servo at site and installation thereof.Complete job comprises of cost of material and labour charges, loading, unloading and transportation and Crane hire charges, reinstalling, tools and tackles and other unforeseen material for execution of job and taxes thereof

Servicing/Repair of 630 KVA Automatic Voltage Servo Stabilizer Unit -I by way of lifting of 630 KVA AVR with the help of Hydra Crane, carriage and shifting it to the factory for complete servicing and repair to make it functional. The job involves draining out of Transformer oil and storing it properly in barrels. Dismantling of servo by unfastening nut bolts of top cover there by extracting out the coils along with core by mean of chain pulley block and tripod stand and repairing of damaged/worn-out parts & replacement of 01 no Dimmer coil. Job also includes replacement of control cards 3 nos, synchronous motors 2 nos, Limit switches, moving arm finger assy. 3nos with carbon brushes and holders with bushes, repair/replacement of Voltmeter, Ammeter -3nos, motor gear- 02nos, torque Gear-01 nos. and phase indicators set with changing of panel wiring and internal wiring etc. Lubrication of all the gear of servo motor, servicing of oil chamber by checking of leakage and plugging if any by way of welding and applying adhesive to make it to leak proof. Assembling of stabilizer, filling of fresh servo-oil upto required level (app. 300 liters) and topping up with reprocessing/de-hydrated old servo-oil so that all coils were fully immersed in the oil then making connection of voltage stabilizer input and output side by connecting the cable. Job also includes replacing of damaged internal control wiring, repairs to internal wiring, providing and fitting of all the incoming and outgoing connection plates with copper terminals, cleaning and tightening of all contact by using sand paper and then charging the stabilizer on no load for 6 hours and then testing the stabilizer on full load. Job included shifting back Servo at site and installation thereof. Complete job comprises of cost of material and labour charges, loading, unloading and transportation and Crane hire charges, reinstalling, tools and tackles and other unforeseen material for execution of job and taxes thereof

Servicing/Repair of 630 KVA Automatic Voltage Servo Stabilizer Unit-II by way of replacement of control cards 3 nos, Limit switches-3nos with carbon brushes and holders with bushes, repair/replacement of Voltmeter, Ammeter 3nos, motor gear- 02nos, . and phase indicators set with changing of panel wiring and internal wiring etc. Lubrication of all the gear of servo motor, servicing of oil chamber by checking of leakage and plugging if any by way of welding and applying adhesive to make it to leak proof. Assembling of stabilizer, filling of fresh servo-oil upto required level (app. 300 liters) and topping up with reprocessing/de-hydrated old servo-oil so that all coils were fully immersed in the oil then making connection of voltage stabilizer input and output side by connecting the cable. Job also includes replacing of damaged internal control wiring, repairs to internal wiring, providing and fitting of all the incoming and outgoing connection plates with copper terminals, cleaning and tightening of all contact by using sand paper and then charging the stabilizer on no load for 6 hours and then testing the stabilizer on full load. Job included shifting back Servo at site and installation thereof. Complete job comprises of cost of material and labour charges, loading, unloading and transportation and Crane hire charges, reinstalling, tools and tackles and other unforeseen material for execution of job and taxes thereof