1. Poornima Institute of Engineering &
Technology
A presentation on
SUMMER TRAINING
At
KEC International Ltd.
SUBMITTED TO:
Mr. DINESH BHATIA
Mr. RAHUL GUPTA
ASST PROF, ECE DEPT
SUBMITTED BY:-
HARSH SAINI
(PIET/EC/13/517)
EC- A, 28
DEPARTMENT OF ELECTRONICS & COMMUNICATION ENGINEERING
POORNIMA INSTITUTE OF ENGINEERING & TECHNOLOGY
ISI-6, RIICO INSTITUTIONAL AREA, SITAPURA, JAIPUR
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 up to two weeks to be completed.
4. Introduction of Industry
KEC International ltd. which was known as Kamani Engineering
corporation Ltd., was Founded by Ramjibhai Kamani in 1945.
Established in 1967 at Jhotwara, Jaipur
In 1982 this company was taken over by RPG enterprises. In 1984
this company was renamed as KEC International Ltd
One of the world’s largest Power Transmission Engineering
Procurement and Construction companies.
Became first electric power transmission company in Asia.
5. Introduction of Industry
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
KEC has the largest tower testing station in the world. It is a matter
of pride for KEC that it has been awarded ISO 9001 on April 26,
1995. and ISO 14000 on March 11, 2000.
6. Jaipur, Rajasthan
Capacity
36,000 MTs per annum of lattice towers
BRANCHES IN INDIA
Nagpur, Maharashtra
Capacity
55,000 MTs per annum of lattice towers
Jabalpur, Madhya Pradesh
Capacity
60,000 MTs per annum of lattice towers
8. Power Transmission
Transmission towers are used to
transmit power from one place to
another.
Major application areas:
Mobile Networking
Radio Broadcasting
Television antennas
Electricity transmission
9. SIMPLE STRCTURE OF
TRANSMISSION TOWER
Arm
Foundation
Damper
Peak of transmission tower
The portion above the top cross
arm is called peak of transmission
tower. Generally earth shield wire
connected to the tip of this peak.
Cross Arm of transmission
tower
Cross arms of transmission tower
hold the transmission conductor.
Cage of transmission tower
The portion between tower
body and peak is known as cage
of transmission tower. This
portion of the tower holds the
cross arms
Fig 1: A transmission tower
12. TPM
TPM is a productive maintenance implemented by
all employees in an organization.
TPM involves everyone in the organization from
operators to senior management in equipment
improvement.
13. Total = All individuals in the organization
working together.
Productive = production of goods that
meet or exceed customer’s
expectations.
Maintenance = keeping equipment and
plant in good condition at all times.
TPM in three words:
14. Breakdown maintenance
Preventive maintenance
.periodic maintenance( time based maintenance)
.Predictive maintenance
Corrective maintenance
Maintenance prevention
Types of maintenance
15. Repairs or replacements performed after
a machine has failed to return to its
functional state following a malfunction
or shutdown.
e.g., an electric motor of a machine tool
will not start, a belt is broken, etc.
Under such conditions, production
department calls on the maintenance
department to rectify the defect.
After removing the fault, maintenance
engineers do not attend the equipment
again until another failure or breakdown
occurs.
Breakdown maintenance
16. The primary goal of preventive
maintenance is to prevent the failure
of equipment before it actually occurs.
It is designed to preserve and
enhance equipment reliability by
replacing worn components before
they actually fail.
It is a daily maintenance which
includes cleaning, inspection, oiling
and re-tightening of equipments.
Preventive
maintenance(1951)
17. Time based maintenance consists of
periodically inspecting, servicing and
cleaning equipment and replacing parts
to prevent sudden failure and process
problems.
Benefits:
Extended life and use of the equipment.
Reliable production at the times when
machine is needed most.
Periodic maintenance (TBM)
18. This is a method in which the service
life of important part is expected
based on inspection or diagnosis, in
order to use the parts to the limit of
their service life.
Compared to periodic maintenance,
predictive maintenance is condition
based maintenance.
Predictive maintenance
19. Based on five Japanese words that begin
with ‘S’, the 5S Philosophy focuses on
effective work place organization and
standardized work procedures.
5 S’s
1. Sort :(Seiri)
2. Set In Order:(Seiton)
3. Shine: (Seiso)
4. Standardize: (Seiketsu)
5. Sustain: (Shitsuke)
5S Philosophy
20. The first S focuses on eliminating
unnecessary items from the
workplace.
An effective visual method to identify
these unneeded items is called red
tagging.
A red tag is placed on all items not
required to complete your job. These
items are then moved to a central
holding area.
This process is for evaluation of the red
tag items.
Sort :(Seiri)
21. second S focuses on efficient and
effective storage methods and how to
organize the work area.
Strategies for effective Set In Order
are painting floors, outlining work
areas and locations, shadow boards,
and modular shelving and cabinets for
needed items such as trash cans,
brooms, mop and buckets
Set In Order:(Seiton)
22. Once you have eliminated the clutter and
junk that has been clogging your work
areas and identified the necessary items,
the next step is to thoroughly clean the
work area.
Workers will also begin to notice
changes in equipment and facility
location such as air, oil, coolant leaks,
fatigue, breakage, and misalignment.
These changes, if left unattended, could
lead to equipment failure and loss of
production.
Shine: (Seiso)
23. Now the first three S’s are
implemented.
Use standard methods to keep Sort,
Set In Order, and Shine to a condition
.
Allow your employees to participate in
the development of such standards.
Standardize: (Seiketsu)
24. This is the most difficult S to
implement and achieve.
Maintain through empowerment,
commitment, and discipline .
Sustain focuses on defining a new
status quo and standard of work place
organization.
Sustain: (Shitsuke)
25. Simplifies work environment
reduces waste
Improves quality
Improves safety
Provide self esteem for everyone in
the organization.
Benifits of 5 S’s
26. References
[1] J.A. Martinez and F. Castro-Aranda, “Lightning
performance analysis of overhead transmission lines using
the EMTP,” approved for publication in IEEE Trans. on Power
Delivery.
[2] IEEE TF on Fast Front Transients (A. Imece, Chairman),
“Modeling guidelines for fast transients,” IEEE Trans. on
Power Delivery, vol. 11, no. 1, pp. 493-506, January 1996.
[3] “Modeling and Analysis of System Transients Using
Digital Programs,” A.M. Gole, J.A. Martinez-Velasco and
A.J.F. Keri (Eds.), IEEE PES Special Publication, TP-133-0,
1999.
[4] C.F. Wagner and A.R. Hileman, “A new approach to the
calculation of the lightning performance of transmission lines
– Part III,” AIEEE Trans. Part III, vol. 79, no. 3, pp. 589-603,
October 1960.
[5] M.A. Sargent and M. Darveniza, “Tower surge
impedance,” IEEE Trans. on Power Apparatus and Systems,
vol. 88, no. 3, pp. 680-687, May 1969.
