Capital Overhauling of HP,IP and LP Turbine MTPS DVC

Amount

Mandatory Works

Overhauling of HPT Module for 250MW unit

Overhauling of IPT Module for 250MW unit

Overhauling of LPT Module for 250MW unit

Digital profile mapping, Turbine Bearing inspection, inspection & alignment of rotor, servicing of HP & IP Stop and control valves with servomotors ,HP & LP Bypass system and spray valves with servomotors, CRH NRV with servomotor , MS and HRH strainers , pipeline and hanger settings & trim balancing (2) Governing rack servicing and calibration (3) Supply & application of Thermal Insulation for HPT & IPT along with valves and strainers (PAD Type), (4) NFT and MPI Of LPT last three stages of blades of 250MW unit

NFT of End winding of generator stator & necessary rectification

OVERHAULING OF GENERATOR

DAVR TESTING

TG C&I (Excluding Checking, Setting and Testing of ATT system, LSR in Simulation mode & House Load Operation and GE/ Bently Navada make VMS, axial shift, key phasor, and differential expansion instruments).

OPTIONAL WORKS

Replacement of existing HPT module with spare module along with inspection & servicing of old existing module.

Slow Speed Balancing of HP Rotor

Slow Speed Balancing of IP Rotor

Machining of HP Inlet insert U-Seal ring. ( Assy Drawing No 0105142400000004)

Machining of HPT U-Seal Ring (Assy Drawing No 0105012400000003)

Machining of HPT U-Seal Ring (Assy Drawing No 0105012400000005)

Machining of HPT U-Seal Ring (Assy Drawing No 0105012400000007)

Machining of HPT Ext U-Seal Ring (Assy Drawing No 1105151800000002)

Machining of HP Stop/Control Valve U-Seal Ring. (Assy Drawing No 0112020200000008/0112230200000007)

Seat cutting of HP bypass control valve

Seat Cutting of HP bypass spray control valve

LP Inlet Bellow Replacement / Extraction 3 Bellow Replacement

Extraction 1 & 2 Bellow Replacement

Replacement of one Top Stator Winding Bar

Complete Repair of End winding Braiding (Consumable excluded)

Checking and testing of ATT system on normal working days, excluding Sundays & Holidays (upto 8 Hrs. or part thereof ) and for journey period of any days .

Checking and testing of ATT system on Sundays & Holidays (upto 8 Hrs. or part thereof ).

Checking and testing of ATT system during overtime,beyond 8 hrs on any day

Checking, setting and testing of load shedding relay (LSR) in simulation mode. Checking, setting and testing of House Load Operation on normal working days , excluding Sundays & Holidays (upto 8 Hrs. or part thereof) and for journey period of any days .

Checking,setting and testing of LSR in simulation mode.Checking, setting and testing of house load operation on sundays & holidays (upto 8hrs or part thereof.)

Checking,setting and testing of LSR in simulation mode. Checking, setting and testing of house load operation during overtime, beyond 8hrs on any day.

Auto Synchronizer (ASR) operation to be checked and unit to be synchronized through Auto Synchronizer.

Logic for CMC (Including Run Back) to be checked, tuned and should be demonstrated on actual.