A PRESENTATION ON SUMMER TRAINING

AT B.H.E.L HARIDWAR

Submitted by :-

Sadanand Singh

B.E. IV yr

Roll no. -39

Branch – Electrical Engg.

CONTENTS COVERED

B.H.E.L . AN OVERVIEW

UNITS OF BHEL IN INDIA

ABOUT BHEL HARIDWAR PLANT

STUDY OF 500 MW TURBO GENERATOR

EXCITATION SYSTEM

B.H.E.L . AN OVERVIEW

BHEL’s first plant was set up in BHOPAL in 1960’s under Indo-Soviet agreement.

BHEL is the largest engineering and manufacturing enterprise in India.

It has been earning profits continuously since 1971-72.

The wide network of BHEL has 14 manufacturing division, 150 project sites, eight service centers and 18 regional offices.

UNITS OF BHEL IN INDIA

BHOPAL BANGALORE HARIDWAR GOINDWAL JAGDISHPUR JHANSI HYDERABAD TIRUCHY RANIPET

ABOUT B.H.E.L. HARIDWAR UNIT

HEEP (Heavy Electrical Equipment Plant)

There are eight blocks in the HEEP namely 1-8.

CFFP (Central Foundry And Forge Plant) Steel Melting Shop Steel Foundry Shop Light Foundry Shop Forge shop

CONTRIBUTION OF B.H.E.L IN MAKING EQUIPMENTS FOR POWER GENERATION

Haridwar Others BHEL other than Hardwar

0

20

40

60

80

100

53

15

32

%age

%age

BLOCK-1 (ELECTRICAL MACHINE BLOCK)

EQUIPMENTS Turbo generators Hydro generators A.C. motors D.C. motors Excitation System

CAPACITY 100 MW-1000 MW 4 MW-250 MW 220 KW-10800 KW 10 KW-12000 KW 5 KW-13KW

8

DEVELOPED APPROACH OF ALTERNATOR

Air-gapStator slotsRotor slots

Stator teethRotor

teethStator yokeRotor yoke

MAIN PARTS OF 500 MW TURBOGENERATOR STATOR ROTOR BEARINGS EXCITATION SYSTEM

STATOR Stator Frame Stator Core Stator Winding Hydrogen Coolers End Shields

ROTOR Rotor Shaft Rotor Winding Insulation Field Connections

BEARINGS

Bearing is a machine element which support another moving element (journal).

TYPES OF BEARINGS

1.Sliding contact type 2.Rolling contact type

EXCITATION SYSTEM It is the power source that supplies the

dc magnetizing current to the field windings of a synchronous generator thereby ultimately inducing ac voltage and current in the generator armature.

Types of excitation system Rotating exciters 1:-Brush Type 2.Brushless

Static exciters 1.Shunt Type 2.Series Type

TYPICAL VIEW OF BLES

DIFFERENCE B/W BTES AND BLESS.No BTES BLES

1.Requirments

2. Maintenance

3.Operation

4. Efficiency

Require slip-rings commutators and brushes

periodic maintenance required

More noise operation

Gives little discrimination in efficiency

Do not require slip-rings commutators brushes

Practically maintenance free

Less noise operation

Gives Better efficiency