Poornima Institute of Engineering & Technology

A presentation onSUMMER TRAINING

AtKEC International Ltd.

SUBMITTED TO:Mr. DINESH BHATIAMr. RAHUL GUPTAASST PROF, ECE DEPT

SUBMITTED BY:-HARSH SAINI(PIET/EC/13/517)EC- A, 28

DEPARTMENT OF ELECTRONICS & COMMUNICATION ENGINEERINGPOORNIMA INSTITUTE OF ENGINEERING & TECHNOLOGY

ISI-6, RIICO INSTITUTIONAL AREA, SITAPURA, JAIPUR

CONTENTSIntroductionIntroduction of IndustryPower TransmissionDepartmentsProduction ProcessTPMReferences

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.

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.

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.

Jaipur, RajasthanCapacity36,000 MTs per annum of lattice towers

BRANCHES IN INDIA

Nagpur, MaharashtraCapacity55,000 MTs per annum of lattice towers

Jabalpur, Madhya PradeshCapacity60,000 MTs per annum of lattice towers

KEC PRODUCTES:-

TRANSMISSION

CABLES

RAILWAYS

DISTRIBUTION

TELECOM

WATER TREATMENT

Power TransmissionTransmission towers are used to

transmit power from one place to another.

Major application areas:

Mobile Networking Radio Broadcasting Television antennas Electricity transmission

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 towerCross 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

DepartmentsYardQuality AssurancePre ProductionFabricationGalvanizingMaintenanceTPM

PRODUCTION PROCESSES1. Straightening2. Bending3. Punching4. Cutting5. Stamping6. Notching7. Drilling8. Galvanizing

TPMTPM 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.

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:

Breakdown maintenance

Preventive maintenance

.periodic maintenance( time based maintenance) .Predictive maintenance

Corrective maintenance

Maintenance prevention

Types of maintenance

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

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)

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)

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

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

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)

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)

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)

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)

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)

Simplifies work environmentreduces wasteImproves quality Improves safetyProvide self esteem for everyone

in the organization.

Benifits of 5 S’s

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.

Any questions…….?

THANK YOU