BHEL is India's largest power equipment manufacturer, established over 40 years ago. It has 14 manufacturing divisions and produces equipment for power plants, defense, and other industries. The document describes BHEL's turbine manufacturing shop, which produces steam and gas turbines through processes like machining, grinding, and balancing blades in an overspeed tunnel. Turbines have rotors, casings, and blades of different sizes for high, intermediate, and low pressure stages. BHEL manufactures turbines up to 600MW and aims to produce 500MW nuclear turbine sets in the future.

2. INTRODUCTION:
 BHEL is the largest engineering and manufacturing enterprise in
India in the energy related infrastructure sector today.
 BHEL was established more than 40 years ago when its first plant
was setup in Bhopal.
 BHEL is one of India’s nine larger Public Sector Undertakings or
PSUs ,known as the NAVRATNAS or the nine jewels .
 The wide network of BHEL's 14 manufacturing division, four
power Sector regional centre, over 150 project sites, eight service
centre and 18 regional offices.
 BHEL has already attained ISO 9000 certification for quality
management, and ISO 14001 certification for environment
management

3.  The power plant equipment manufactured by BHEL is based on
contemporary technology comparable to the best in the world and is
also internationally competitive.
 BHEL is the only company in India with the capability to make
simultaneous for power plants, defense and other applications.

4. HEAVY ELECTRICAL EQUIPMENT
PLANT:
1. BLOCK-1: Electrical Machine Shop
2. BLOCK-2: Heavy Fabrication Shop
3. BLOCK-3: Turbine Manufacturing Shop
4. BLOCK-4: CIM (Coils & Insulation Manuf.)
5. BLOCK-5: Condenser Fabrication & Forge Shop
6. BLOCK-6: Fabrication Shop & Die Shop
7. BLOCK-7: Carpentry & Heat Treatment Shop
8. BLOCK-8: Heat Exchanger Shop

5. BLOCK-3: TURBINE MANUFACTURING
SHOP
 HMS (Heavy Machine Shop)
 Assembly Section
 OSBT
 Turbine Section
 Blade Section

6. STEAM TURBINE:
 Turbine is an engine that converts energy of fluid into mechanical
energy .
 Steam turbine depends completely upon the dynamic action of the
steam.
 Steam turbine is steam driven rotary engine.

7. WORKING OF STEAM TURBINE:
Impulse Turbine:-
• steam is expanded only in nozzles.
• Blade passage of constant cross-section
area.
Reaction Turbine:-
• Pressure drop in fixed & moving blade.
• Blade passage of varying cross-section
area.

8. ROTOR AND CASING OF STEAM
TURBINE:
 HP (High Pressure)
 IP (Intermediate Pressure)
 LP (Low Pressure)

10. GAS TURBINE:
 Gas turbine have been used for electricity generation.
 The gas turbine obtains its power by utilizing the energy of burnt
gases & air which are at high Pressure and Temperature.

11.  For electricity generation, it is known as power turbine.
 For propulsion unit in aircraft, it is called aircraft turbine.

12. BLADES MANUFACTURING:
 Operations Performed On Blades:
 Inspection
 Cutting
 Milling
 Grinding on both the surface
o Machining Of Blades:
 Horizontal milling machine
 Central lathe machine
 CNC machine
 Vertical boring machine

13.  Mostly 500MW turbine blades are manufactured in this shop.
 Basically the design of blades is classified according to the stages of
turbine.
 The size of LP Turbine blades is generally greater than of HP
Turbine blades.

14. OVER SPEED BALANCING
TUNNEL:
Features:
 max. thickness of tunnel : 2500mm
 tunnel diameter : 9000mm
 min. vibration limit : 1micron
 over speed limit : 2500 to 4500 rpm
 rotor balancing of max. : 600Mw
rating
 type of pedestal : DH 90/ DH 12

15. CONCLUSION:-
 BHEL is the largest engineering and manufacturing enterprise in
India .
 The company manufactures 235 MW nuclear turbine generator sets
and in future it will 500 MW.
 BHEL is a major contributor of equipment and systems to
industries.
 At the all, till now BHEL is best in supply and manufacturing
products.