its a seminar or practical training report presentation on kamani engg. cor.,jaipur

1. PRESENTATION
ON
SUMMER TRAINING
AT
KEC INTERNATIONAL LIMITED,JAIPUR

2. Founded by Ramjibhai Kamani in 1945.
Became first electric power transmission company in Asia.
India’s second largest manufacture company of electric
power transmission towers.
One of the world’s largest Power Transmission Engineering
Procurement and Construction companies.
Supplying 3/5 of India’s demand for transmission towers.
Supplies Towers to more than 45 countries. Major Clients
Of Company are USA, BRAZIL, ARGENTINA,AUSTRALIA
etc.
KEC today is a 4000 crore turnover flagship company of
RPG group

3. Introduction
A transmission tower is usually a steel lattice tower, used
to support an overhead power line.
Used in high voltage AC and DC systems.
Manufactured in wide variety of shapes and sizes, typical
height ranges from 15 to 55 meters.
All the electricity stations, mobile networking, radio
broadcasting and television antennas are connected via
these towers.
Power transmission tower takes upto two weeks to be
completed.

4. SOME PRODUCTS OF THE COMPANY
ELECTRICITY TOWERS
MOBILE TOWERS
RAILWAY ELECTRIFICATION TOWERS

5. ANGLES USED IN BRIDGES

6. NECESSITY OF TRANSMISSION
TOWERS
Transmission towers are used to
transmit power from one place to
another.
Major application areas:




Mobile Networking
Radio Broadcasting
Television antennas
Electricity transmission

8. MANUFACTURING PROCESS OF THE TOWER
flow chart

10. PROCEDURE FOLLOWED BY THE
COMPANY FROM STARTING TO END
STAGE 1
RAW YARD
AREA
• THE BASIC RAW MATERIAL OF A TOWER ARE THE STEEL
ANGLES AS SHOWN IN THE FIGURE.
• THE RAW MATERIAL SUPPLIED BY THE CLIENTS OF THE
COMPANY IS UNLOADED IN THE RAW YARD AREA OF THE
COMPANY

11. A PICTURE OF RAW YARD AREA OF
KEC, JAIPUR

12. RAW YARD AREA
AREA
STAGE 2
QUALITY CHECK
AREA
QUALITY CHECK
• IN QC AREA IT IS CHECKED
WHETHER THE SUPPLIED MATERIAL
IS UPTO CORRECT INTERNATIONAL
STANDARDS OR NOT.
• IF IT IS NOT THERE IS A
POSSIBILITY OF FAILURE OF
TOWER.
•
THE COMPANY HAS DIFFERENT
CHARTS AND TABLES TO CHECK THE
QUALITY OF THIS RAW MATERIAL.
•
FROM QC AREA THE RAW MATERIAL
IS FURTHER SENT TO THE
FABRICATION AREA.

13. A PICTURE OF QC AREA OF KEC, JAIPUR

14. QC AREA
AREA
STAGE 3
FABRICATION
• IN FABRICATION AREA, THE
RAW MATERIAL IS
FABRICATED ACCORDING TO
THE ENGINEERING DRAWINGS
PROVIDED BY THE
ENGINEERS.
•
PUNCHING
STAMPING
FABRICATION INCLUDES THE
FOLLOWING :
SHEARING
BLANKING
BENDING
SPOT
WELDING

15. FABRICATION AREA
GALVANIZING AREA
STAGE 4
• IN GALVANIZING AREA, THE
FABRICATED MATERIAL IS
GALVANIZED TO PROTECT
AGAINST CORROSION.
• THE ATMOSPHERIC MOISTURE
CAN CORRODE AND DEGRADE
THE QUALITY OF THE TOWER.
• ALSO THE RAIN ALSO AFFECTS
THE TOWER QUALITY BADLY.
•
THE MATERIAL IS COATED
WITH ZINC BECAUSE OF ITS
INERT NATURE TOWARDS
WATER.

16. PROCESS FOW CHART OF GALVANIZING DEPARTMENT

17.  It
the process of applying a protective zinc coating on
iron or steel by passing the metal through a molten
bath of zinc to prevent it from rusting.
 Temperature of molten bath is around 860 F(460 C).
 Zn+O₂=ZnO
 ZnO+CO₂=ZnCO₃

19. -The product is dipped into
hot alkali solution to remove contaminants such as
dirt, grease, paint markings and oil.
-Alkali is removed by washing lightly with
water.
-The product is dipped into a dilute
solution of HCL to remove scales and rust.
-HCL is removed by washing with water.
-Zinc ammonium chloride is applied to
remove oxides and further formation of oxides on the
surface of steel and promotes bonding of zinc to steel

20. The steel is dipped into the molten zinc bath and held
there until the temperature of the steel equilibrates
with that of the bath.
 Lead is often added to molten zinc to improve its
fluidity and helps to prevent floating dross.

Galvanized coating
steel

21. After
hot dip galvanized steel item is removed from
the galvanized bath it is immediately quenched in a
sodium dichromate solution.
The dichromate quenching cools the item so that it
can be quickly handled and conditions the surface to
maintain its bright appearance.
Dichromate quenching will reduce white rusting
problems.

22. WHY IS GALVANIZING
SUSTAINABLE?
Low Life Cycle Energy
Resource Efficient
Recyclable
Long-life
Cost Efficient

23. GALVANIZING AREA
STAGE 5
TESTING
AREA
• AFTER COMPLETING
GALVANIZING, THE
COMPLETED MATERIALS ARE
SENT TO THE TESTING AREA.
• IN TESTING AREA, TESTING OF
TOWER IS PERFORMED TO
CHECK ITS STRENGTH DURING
CHANING WEATHER
CONDITIONS.
• IF PASSED TOWER IS
DISASSEMBLED AND THEN
SENT TO THE ERECTION SITE.
• IF FAILED, THE MATERIAL IS
SENT BACK TO THE SUPPLIER
AGAIN.

24. A PICTURE OF TESTING AREA OF KEC, JAIPUR

25. INSPECTION AND OBSERVATIONS
For checking zinc coating thickness, a special
device called Elcometer is used

26. CONCLUSION
Training have helped us a lot in enhancing our
inter and intra – personal skills there by
Furnishing our attitude, skill and knowledge
dimensions. Further the guidance, support, coOperation and assistance provided by Engineers
, workers and staff members at the KEC
INTERNATIONAL Ltd. helped us a lot in adapt
ourself to actual working environment &
Working in coordination with other team
members.

27. REFERENCES
KEC International Limited .Company’s
Official Website (Reference made 4 June
2013) www.kecrpg.com/
Drawing sample of tower part. Dao Power
co. (Reference made 27 June 2013).
www.daopower.com

28. THANK YOU!!!