Breakdown maintenance of 6.6 KV, 0.4 KV Switchgear, MCC, DC system and DG sets

Amount

Part-A (6.6 KV System Breakdown Work)

Breakdown maintenance due to flashover in any panel or on a portion of Bus bar including replacement of the damaged parts, reassembling of the section and re-commissioning after achieving I.R. values.

Breakdown maintenance of 1250A/2000A Jyoti make MOCB including replacement of damaged / defective parts.

Arresting the oil leakage of 1250A/2000A Jyoti make MOCB from any portion of pole parts including toping of centrifuesed oil in the chamber.

Rectification of the electrical problem associated with trip / close of breakers / permissive/indication circuit including servicing / replacement of defective parts like contactors/limit switches / connectors T/Bs. Etc. inside the breaker ckt.

Repair / replacement of defective mechanical parts and hence removing any obstacle related to correct positioning / placement of breakers inside the cubicle.

Repair / replacement of damaged / defective switches such as local / remote or trip / close or Auto Manual etc. of cubicle / panels.

Replacement of damaged / defective C.Ts. and checking / testing with associated circuit.

Replacement of defective protection Relays / contactors etc. & rectification of the associated circuit fault.

Break down maintenance of control ckt. Panel of plant air compressor motors.

Repair / replacement of emergency push buttons / local start – stop buttons / meters of 6.6 KV motors.

Repair/Replacement of spring charging of motor starter

Disconnection & connection, replacement of differential CTs and testing after Breakdown of any auxiliaries/CTs

Part – B (D.G. System and D. G. Set Breakdown Works)

Break down maintenance of 24 VDC/220 VDC Trickle charger / quick charger / battery terminal panels including replacement of defective parts and re commissioning.

Repair & maintenance of complete variac of + 24 VDC G1/G2 battery trickle / quick charger / replacement of defective parts, testing & commissioning.

Break down maintenance of DC control panel of E.O.P. motor including checking of control circuit & replacement of defective parts like contractors, switches etc.

Repair & maintenance of complete variac of 220 VDC trickle / quick charger / replacement of defective parts, testing & commissioning.

Break down maintenance of control panels of D.G. set including fault finding and replacement of defective parts.

Repair and maintenance of 24 VDC charger of D.G. set battery.

Repair & reconditioning of battery of D.G. set of 12 V x 2 of 135 AH.

Dismantling, repair & reconditioning, reinstallation, painting with acid proof paint and re-commissioning of 2.1 V cell unit.

Break down maintenance of 220 VDC Trickle / quick charger extension panel at 11.00 meter VDDC room.

Break down works at 24 VDC / 220 VDC D.B. Modules at 11.00 M VDDC room including attending of flash over area / replacement of fuse carriers / switches etc.

Part-C (0.4 KV System Breakdown Work)

Break down maintenance due to fire or flashover on any portion of the bus bar of 0.4 KV systems including reassembling of the section and re-commissioning after achieving I.R. values.

Break down maintenance of L&T/EE/GE make breakers of 0.4 KV system including replacement of damaged / defective parts.

Break down maintenance of 0.4 KV motor feeder modules including fault finding of control circuit & replacement of damaged / defective parts like contractors/EMRs/Switches/Fuse carriers etc. and tightness of cable termination at MCC and motor both the end.

Break down maintenance of 0.4 KV modules other than motor feeders including replacement of damaged/defective parts like switches/fuse carriers etc.

Replacement of protection relays / bus CT/ Bus PT etc. including rectification of the fault of associated circuit.

Checking & replacement of damaged heaters, its control circuit parts & re-commissioning of dryers of Instruments air compressors.

Break down maintenance of control circuit panel of Instrument Air compressor motors.

Break down maintenance of local control panel for scraper conveyor / clinker grinder / CMR including fault finding of control circuit, replacement of defective parts & set right the local as well as remote operation.

Repair / replacement of defective switches such as local / remote, trip / close auto / manual etc. of Bus Bar cubicle or panels.

Break down maintenance of clarifloculator bridge panels & supply through commutator and carbon brushes of PT-1 / PT-2.

Break down maintenance of lime & alum. Dozing agitator mixture starter and TPN switches of A/B filtration plant.

Break down maintenance of star delta starter & TPN switches of 135 KW. Water supply motors in filtration plant.

Break down maintenance of control circuit panels (LCC) of 0.4 KV system of ancillaries including fault finding of control circuit, replacement of defective parts like contactors, BMRs/Switches/Push buttons / starters / Bulb holders / fuse carriers etc. and re-commissioning of the system for its local and remote operation and healthy indication circuit.

Repair / replacement of emergency push buttons / local start-stop push buttons / meters of 0.4 KV Motors.

Repair of rectifier unit of H2 plant including fault finding of circuit and replacement of defective parts and re-commissioning.

Checking and rectifying the fault in control panels and testing of interlock protection, local / remote of :-

Ash water pump house.

Ash slurry pump house.

Replacement of defective timer, contactor,relays,fusebase etc in panel

Electrical breakdown maintenance of sump pump

M/S DURGA ELECTRIC

M/S SHYAM ERECTORS

G K P Const. Project Company