UnitII ESP Overhauling Work During July to August 2022 under AHP Electrical Maintenance StageI

Dry Cleaning Work. Dry cleaning (with broom) of ESP starting from ESP inlet duct toESP outlet duct ,all ESP hoppers,Gas distribution Screens,all emitting electrodes and collecting plates and other allied zones.Arch breaking from the ESP hoppers and allied zones.

Water Washing Work.(If required)Water washing of total ESP internal, including all hoppers,collecting plates, emitting electrodes and other allied zones.at the time of water washing if any chocking found in the oppers, the choking shall be cleared immediately.

Fixing/repairing & realignment of collecting plates at suspension point and sock bar portion ofESP fields as per requirement.

Gap adjustment of all Plates.Through checking of collecting plates (top to bottom)and straightening of all the collecting plates of 28 nos. of ESP fields.Gap adjustment of all the plates (between the collecting plates) of all the ESP fields. Inspection and replacement of electrodes if any(1st ,2nd & 3rd fields having Multipeaks and 4th ,5th ,6th & 7th fields having Spring wires) etc. Field Alignment.

CRM System.Checking and rectification of Collecting rapping system of all the ESP fields thoroughly.

ERM System.Checking and rectification of Emitting rapping system of all theESP fields thoroughly.

Shaft Insulator System.Replacement / Repair & Cleaning of Shaft Insulator and its Heater.

Support Insulator System.Replacement / Repair & Cleaning of Support Insulator and its Heater.(if required after checking)

Hopper Heater.Replacement / Repair & Cleaning of Hopper Heater.(if required after checking)

GD Screen.Replacement / Repair & Alignment of Inlet GD screen (three stages).(if required after checking)

Anvil Pads. Replacement / re-fitting of Anvil Plate of the all the collecting plates of ESP fields.(if required after checking)

CRM & ERM Systems. Replacement / Repair & Alignment of rapping shafts, bearings, Pin wheel, hammer assembly of all the rapping mechanism (Collecting & Emitting), (if required after checking) for all ESP Fields (28 Nos).

Shock Bar System. Repair of shock bar and also the alignment of the shock bar. (if required after checking)

Baffle Plates.Refitting/ Repair of Baffle plates of all the ESP hoppers (56 nos) thoroughly.(if required after checking)

CERM & EERM Gear Boxes.Lubrication of Collecting and Emitting rapping motor and its gearbox.( if required after checking)

ESP Fields.After completion of aforesaid jobs, Meggaring of each field to be carried out until it comes to its desired value.

TR Sets.The entire Transformer # Rectifier units should be checked thoroughly and cleaned body only including checking of oil level and changing of silica gel depending upon the condition then.(if required after checking)

HV Safety Bkrs. Alignments of all the safety breakers, 28Nos. (1 for each field) should be checked & rectified.(if required)these must also be cleaned.

ESP MCC Panels.All the MCC panels (28Nos.) of ESP fields & its Incomer Breakers (12 Nos.) including 6.6 KV/ 415V Dry type Transformers (Three Nos.) to be cleaned & tightness checking.

Suspension Frame & I-Beam.Checking & maintenance of collecting & emitting suspension frame and I-beam of A-path & B-path. Suspension point of collecting plate and emitting wire also to be checked in all respect and necessary action to be taken for correction.

ESP Manhole Doors.Inspection and repair of all manhole Doors of A-path & B-path.(if required after checking)

ESP Hopper Walls.Inspection (De-metering) and repair of hopper walls by scaffolding of 1st 02 rows. (if required after checking)

Guide Vane.Checking , Repair/Replacement and strengthening of Guide Vane of ESP Inlet Duct. (if required after checking)

RAYCOM ENTERPRISES PVT LTD

TECHNO ENGINEERING