III. GENERATOR AND AUXILIARIES (PER UNIT)

1.0 GENERATOR (THRI 108/44 Fully impregnated)

1.1 Stator: 1 no.1.2 Rotor: 1 no.1.3 End shields with bearing (EE&TE): 1 set1.4 Gas coolers: 4 nos. (two pair of twin type)1.5 Terminal bushings alongwith connectors: 4 nos. (two pair of twin type)1.6 Shaft seals (EE&TE): 1 set1.7 Foundation plates, studs and embedments: 1 set1.8 Special maintenance tools & tackles: 1 set (common for both the units)1.9 Brushes for Grounding brush monitor: 1set

2.0 EXCITER (BE 70/62-30/6-10)

2.1 Stator: 1 no.2.2 Rator: 1 no.2.3 Bearing with pedestal: 1 set2.4 Foundation frame, studs & embedments: 1 set2.5 Permanent magnet pilot exciter: 1 no.2.6 Exciter air coolers: 2 nos.2.7 Air baffles: 1 set2.8 Sound proff lining for exciter covers: 1 set2.9 Air dryer: 1 no.2.10 Space heaters: 1 set2.11 Necessary temperature Deaerators etc.: 1 set

3.0 SEAL OIL SYSTEM

3.1 Seal oil unit-I (mounted on frame) complete with following:-3.1.1 Seal oil coolers:- 2 nos.3.1.2 Duplex oil filter:- 1 no.3.1.3 Differential pressure reg. Valves: 2 nos.3.1.4 Vacuum Tank: 1 no.3.1.5 Intermediate Oil Tank: 1 no.3.1.6 Flow meters: 2 nos.3.1.7 Flow meters: 4 nos.3.1.8 Necessary Instruments like pressure Gauges, Pressure Switches

and thermostats: 1 set3.1.9 Necessary Interconnecting pipe lines in the unit: 1 set3.1.10 Valves: 1 set

3.2 Seal oil unit-II (mounted on frame) complete with following:-3.2.1 Seal of Oil Pump with AC motor: 2 nos.3.2.2 Seal of Oil Pump with DC motor: 1 nos.

3.2.3 Vacuum pump: 2 nos.3.2.4 Constant pressure Regulators; 3 nos.3.2.5 Necessary Instruments like pressure Gauges, Pressure Switches

and thermostats: 1 set3.2.6 Necessary Interconnecting pipe lines in the unit: 1 set3.2.7 Valves: 1 set

3.3 Seal Oil Storage Tank DIA 800 X 3300) : 1 no.3.4 Necessary Pressure Gauges and Thermostats: 1 set3.5 Necessary Pipe Lines and Valves: 1 set

4.0 GAS SYSTEM4.1 Gas Unit: 1 no.4.2 Duplex Gas Dryer: 1 no.4.3 H2 Distributor: 1 no.4.4 CO2 Distributor: 1 no.4.5 CO2 Vapouriser: 1 no.4.6 Empty H2 Cylinders: 120 nos.4.7 Empty CO2 Cylinders: 63 nos.4.8 Necessary Valves and Instrument: 1 set

5.0 GENERATOR SYSTEM5.1 Liquid Detector Rack: 1 no.5.2 Necessary Valves and Instruments: 1 set

6.0 WASTE GAS SYSTEM6.1 Bearing Vapour Exhauster with AC motor: 2 nos.6.2 Necessary Valves and Instruments: 1 set

7.0 WASTE FLUID SYSTEM7.1 Necessary Valves and Piping: 1 set

8.0 GENERATOR C&I8.1 Control Cabinet for DC Seal oil Pump motor: 1 no.8.2 Generator Instrument Cabinet: 1 no.8.3 Gas Analyser Cabinet: 1 no.8.4 Starting Registor for DC Seal Oil Motor: 1 no.8.5 Loose Instruments as required: 1 set8.6 Generator Multipoint recorders(30 points): 2 nos.8.7 Grounding Brush Monitor: 1 set8.8 Transmitters: 1 set8.9 Cold H2 gas temp. control valve and actuator: 1 no.

IV. ENERATOR CONTROL RELAY PANELS for Electrical protection of Generator, Generator transformers and Unit Auxiliary Transformers (For detailed scope, please refer Section-1 Part-F Volume-II of our offer)

V. ISOLATED PHASE BUSDUCT for Generator phase upto Generator Transformer including tap-off to UTA and Generator Neutral side along with Generator Neutral Grounding Transformers. (For detailed scope, please refer Section-2, Part-F, Volume-II of our offer)

VI. CONTROL AND INSTRUMENTATION FOR SG & STG

The following are included in scope of work and services:

1. Distributed Digital Control Monitoring & Information System (DDCMIS), based on maxDNA control system, including regulating controls, interlocks, sequential controls, operator interface units, interconnection cabling and requisite terminations encompassing the following system: (Qty. mentioned below is for 1 X 250 MW, unless otherwise specified)

1.1 Steam Generator Controls comprising of:a) Electronic System Cabinets (catering to): 1 set

Burner Management System (BMS) Master Fuel Trip (MFT) Unit Purge & Protection Coal and Oil Elevation Interlocks and Protection Secondary Air Damper Controls (SADC) Soot Blower Controls (SBC) Auxiliary Pressure Reducing & De-superheating (APRDS) Bowl mill lube oil control

b) Minimum hardwired Backup Console: 1 setc) Field Instruments (for Soot Blower Control, SADC, APRDS): 1 set

1.2 Steam Turbine Controls (ST) comprising of:a) Electronic System Cabinets (catering to): 1 set

Electro-Hydraulic Turbine Controls (EHTC) Automatic Turbine Run-up System (ATRS) Gland Steam Pressure Controls (GSPC) LP Bypass (LPBP) HP Bypass (HPBP) Turbine Stress Controller (TSC) Automatic Turbine Tester (ATT) Turbine Protection (TP) Generator Auxiliaries Monitoring Pane (GAMP)

b) Minimum hardwired Backup Console: 1 set

c) Vibration Monitoring System (with decision support)

(with Sensors & Monitors for following services of Steam Turbine-Generator): 1 set

Absolute Bearing Vibration Relative Shaft Vibration Differential Expansion Rotor & Casing Casing Expansion Speed

d) Vibration Monitoring System (with decision support)(with Sensors & Monitors & cables for following services): 1 setID fans (only fans not motor)FD fans (only fans not motor)FA fans (only fans not motor)Mills (only Mills not motor)BFP (only Pumps not motor)CEP (only Pumps not motor)

e) Instrumentation Cables between ST on-base instruments and Field JBs: 1 set

1.3 Digital Automatic Voltage Regulator: 1 set1.4 Man Machine Interface & Plant Information System (MMPIS) comprising of:

1 set Operator Workstations: 4 Nos Engineering Workstation: 1 no. Historical Storage & Retreival Station: 1 no. PC for maxLINK (catering to interface requirements for BOP PLCs) : 1 no. Colour Inkjet Printers (A4) : 2 nos. Dot Matrix Printet : 1 no. Ethernet Switches : 1 set

2.0 24 Volt DC Power Supply System (with 2X100% lead-acid battery & charger system) : 1 set Catering to DDCMIS Loads.

B. TERMINAL POINTS

STEAM GENERATOR AND AUXILIARIESThe terminals for the main steam generator and the auxiliaries covered in this package are as follows:

1 WATERa. Boiler filling Inlet of non-return valve in boiler filling

lineb. Auxiliary Cooling water and

closed DM cooling waterAt one point near one Boiler (Further distribution under BHEL scope)

c. APH wash water and fire fighting water supply, mill fire fighting, feeder fire fighting

At one point near one Boiler (Further distribution under BHEL scope)

d. DM water for chemical dosing skid (HP)

At inlet of dosing skid.

2 FUELS

a. Coal Travelling tripper outlet at bunker top.

b. Oil (LSHS & LDO) Near the day tank dyke

c. Mill Reject Outlet flanges of mill reject hopper.

3 AIR

a. Combustion air Inlet of FD fan/PA fan filters.

b. Compressed air (SA & IA) At a point near one boiler (Further distribution under the Bidder scope)

4 FLUE GAS

Flue gas Bi-flue chimney inner flue inlet flange including mating flange.

5 ASH

a. Furnace bottom ash Bottom Seal plate of the Boiler

b. Fly ash Outlet flange of duct hoppers below economizer

Outlet flange of duct hoppers below APHs.

Outlet flange of hoppers below ESPs.

6 VENTS AND DRAINS

a. Vents 1 meter above nearby structure (for IBD tank, it will be above Boiler drum level)

b. Drains Nearest surface drain.