Internship Report(TNEB)

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AN

ORGANIZATIONAL

STUDY AT TNEB

(230/ 22 KV SS)

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1. INTRODUCTION

Tamil Nadu at a Glance

Tamilnadu is situated at the south eastern end of the Indian

peninsula, between Latitude 8° 5' N and 13° 35' N and between Longitudes 76° 15' E and 80°

20'E.

It is bordered on the north by the states of Andhra Pradesh and Karnataka and

on the west by the state of Kerala. Kanyakumari, the southernmost tip of this land is the

meeting point of the Bay of Bengal, the Arabian Sea and the Indian Ocean. Tamilnadu has a

tropical climate with only slight seasonal variations. Temperature and humidity remain

relatively high throughout the year. Tamilnadu gets its rainfall from the South West Monsoon

(June to September) and the North East Monsoon (October to December). The normal annual

rainfall is 911.6 mm. The temperature in the plains varies between 38° C and 20° C.

Tamil is the official language of this state. Thirukkural, a masterpiece of Tamil

literature dates back to the period before 500 BC. The culture of Tamilnadu is a unique blend

of the ancient and the modern, where dance, drama and music are an integral part of everyday

life.

Tamilnadu is a land of temples. The temples are of a distinct style which are famous

for their towering gopurams.

Tamil Nadu has a long eastern coastline stretching for nearly 1000 kms dotted with

enchanting beaches with Bay of Bengal in the east. For the tourist, Tamilnadu has much to

offer – from the majestic hills of the Western Ghats with its wide variety of flora and fauna,

to the magnificent beaches on the Coromandel Coast.

Tamil Nadu is one of the most industrialised states in India with a high Human

Development index. Chennai (formerly known as Madras), the capital city of Tamil Nadu, is

the gateway of South India with an international airport, sea ports and rail and road network

connectivity.

Coimbatore, Madurai and Tiruchirappalli, Salem and Tirunelveli are some of the

other major towns in the state. The state has large number of good educational institutions

and is one of the leaders in the field of Science and Technology and particularly in

Information Technology.

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The investment scenario in the State is very buoyant due to the transparent and

proactive approach of the Government. The State has emerged as the front-runner in

attracting new investments in Manufacturing sector. Within the manufacturing sector, sun-

rise industries like Electronic Hardware, Automobiles and components, apart from

traditionally strong industries like Textiles & Garments, Leather products, etc, are the prime-

movers of the manufacturing sector in Tamil Nadu. The vision of the Government is to make

Tamil Nadu as the hub for Global Manufacturing.

Tamil Nadu has been amongst the top three States in terms of ICT investments and

production. It has emerged as a hub for software, hardware and R&D. The number of Indian

and Multinational organizations having presence in Tamil Nadu is a testimony to this.

ICT production in Tamil Nadu touched a high of US $ 5.7 billion in 2006-07 and is expected

to rise even further in the coming few years. Tamil Nadu now wishes to leverage the unique

advantages it possesses and enhance its presence in the ICT sector.

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2. HISTORY OF TNEB

Electricity generation in Tamil Nadu until about 1908 was confined to a few tiny

plants in Tea Estates run on water power and to a small hydro electric station at Kattery near

Coonoor. The Government Electricity department was created in 1927.

The Pykara Hydro electric Power Station was constructed by Sir John G. Henry

Howard , a British Engineer and the first Chief Electrical Engineer of the then Composite

Madras State Electricity Department and commissioned in 1933 with an original installed

capacity of 70 MW.

The Tamil Nadu Electricity Board was constituted with effect from 1st July

1957 under the Electricity Supply Act 1948 and came to be known as “The Madras

State Electricity Board” with Padmashri V.P. Appadurai appointed as Chief Engineer

(Electricity). The first thermal power plant was commissioned during 1971 at Ennore,

Chennai with its first unit of 60 MW capacities.

Naphtha based gas station of 10 MW capacity was commissioned at Narimanam

during 1991-92.TNEB simultaneously ventured into wind generation and 120 units with a

total capacity of 19.355 MW was commissioned in the period 1986-93. In 1992, the power

sector was thrown open for private participation and the first independent power project was

established by GMR Vasavi at Basin Bridge, Chennai.

Today TNEB has grown into a giant organization having a installed capacity of

10,122 MW and serving a consumer base of about 2 crore consumers.

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3. PROFILE OF TNEB

On 1 st July 1957, Tamil Nadu Electricity Board came into being and has remained

the energy provider and distributor all these years. During the period the Government have

extended the electrical network to all the villages and towns throughout the state. After

53 years of journey on 1st of November 2010 it has restructured itself into TNEB Ltd; Tamil

Nadu Generation and Distribution Corporation (TANGEDCO) Ltd; and Tamil Nadu

Transmission Corporation (TANTRANSCO) Ltd.

3.1. MISSION OF THE GOVERNMENT

The Government of India, Mop have planned to give “Power for all by 2012”. To

achieve this, Tamil Nadu Generation and Distribution Corporation limited is making progress

in Generation and Distribution sector. It is happy to inform that the electrification of all

villages and towns were completed and also electrification of all households is under

progress.

3.2. NEED

We take immense pleasure in re-dedicating ourselves to serve the people of Tamil

Nadu by bringing out a Citizens Charter. This Charter sets out the Standards and Quality of

services that will be provided by us.

3.3. OBJECTIVES OF THE CHARTER

To place before the public an overview of the organization

To inform the Citizens about the kind of services that we provide

To state the Standards of service delivery

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4. CITIZENS CHARTER

4.1. MEMBERS OF TANGEDCO

THIRU. HANS RAJ VARMA, IAS

CMD, TANGEDCO

THIRU M. RAJAGOPAL M.COM, FICWA,ACS

DIRECTOR FINANCE, TANGEDCO

ER. K.BALASUBRAMANIAN, B.E.

DIRECTOR GENERATION, TANGEDCO

ER. T. JAYASEELAN B.E

DIRECTOR DISTRIBUTION, TANGEDCO

THIRU. K.SHANMUGAN, I.A.S.

PRINCIPAL SECRETARY, FINANCE DEPARTMENT

GOVT. OF TAMILNADU.

THIRU. RAMESH KUMAR KHANNA, IAS

PRINCIPAL SECRETARY , ENERGY DEPARTMENT,

GOVT. OF TAMILNADU

DR.N.SUNDARADEVAN IAS

PRINCIPAL SECRETARY,INDUSTRIES DEPARTMENT.

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5. DEPARTMENTS

5.1. Generation

Starting with a modest installed capacity of 156 MW (Mega Watt) with annual

gross generation plus purchase of 630 MU (Million Units) at the dawn of independence, the

TNEB has grown by leaps and bounds with installed capacity of 10,098 MW as on 31.3.07.

The Board gross generation and power purchase during the year 2006-07 was 63,038 MU.

5.2. Transmission and Distribution

TNEB has 185.82 lakh consumers. The distribution network comprises

1,54,104 circuit kilometers of Extra High Tension (EHT) and High Tension (HT) lines, 5.02

Lakhs kilometers of Low Tension (LT) lines, 1148 Sub-Stations, 1,73,053 distribution

transformers besides other assets.

As on 31.3.07, 63,956 Towns, Hamlets and Villages have been electrified. In

addition, 18.02 Lakhs agricultural pump sets have been given electric supply. The role of

Tamil Nadu Electricity Board in improving the economy of the State of Tamil Nadu by

extensive electrification of the villages, large scale energisation of agricultural pump sets and

extension of electricity services to poor/backward and downtrodden sections of the society, in

addition to extension of supply to large number of industries has been well recognized.

Our commitment to excellence would include a continuous effort to modernize

and upgrade not only our tools, plants and machinery but also our most valuable performing

assets viz. our human resources.

5.3. Service standards

We are committed to render the highest standards of service to you. This

Charter sets out the standards for the various services so as to improve our service to you. It

is worth mentioning that these service levels are our maximum response times for important

aspects of your electricity service, and that we aim to beat these standards every time we can.

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5.4. SERVICE STANDARDS (NOTIFIED BY TAMIL NADU

ELECTRICITY REGULATORY COMMISSION)

Effecting of Service Connection

TABLE 1: LOW TENSION SERVICE CONNECTION

Category

Time Schedule for LT

a) Involving no extension or

Improvement work

Generally within a week but however not exceeding

30 days

b) Involving extension and

improvement without Distribution

transformers

60 days

c) Involving extension and

improvement with Distribution

transformers

90 days

TABLE 2: HIGH TENSION SERVICE CONNECTION

Category

Time Schedule for HT/EHT

HT EHT

a) Involving Extension &

Improvement work

60 days 150 days

b) Involving the enhancement of

Power Transformer/Addition of

Power Transformer

120 days 180 days

c) Involving the Commissioning of

new substation

180 days 270 days

Note: This time schedule is also applicable for additional loads.

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In regard to Agricultural Service Connection and Hut Service Connection,

directive issued by Tamil Nadu Electricity Regulatory Commission from time to time on the

basis of the guidance by National Electricity Policy and the policy directions by State

Government, will be followed.

5.5. Temporary Supply

The intending consumers may require temporary services for construction of

residential houses, complexes, commercial complexes, industrial premises and also for

illumination during festivals, etc. Such temporary services will be effected as per the time

schedule specified for the new and additional loads.

Shifting of Service Connection/Deviation of Lines and Shifting of

equipments

1. Shifting of meter/service : 25 days

2. Shifting of LT/HT lines : 60 days

3. Shifting of Transformer structure : 90 days

The above works will be carried out after remittance of charges due therefor.

5.6. Transfer of Service Connection

The transfer of service connection will be effected within 7 days from the date

of receipt of complete application.

5.7. Change of Tariff

Change of tariff will be effected within seven days from the date of receipt of

application from the consumer.

However no consumer shall be permitted to change the tariff of the service

connection from any Low Tension Tariff (other than agriculture) to Low Tension Tariff for

agriculture.

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5.8. Complaints in Billing, etc.

Any complaints in billing received prior to the due date for payment shall be

resolved before the next billing along with refund/adjustments, if any. However, the

complaints in respect of arithmetic error if any received three days prior to the due date for

payment shall be set right within the due date for payment.

The consumer shall not, on the plea of incorrectness, withhold any portion of

the amount billed.

5.9. Replacement of Meter

On receipt of complaints or found during inspection/meter reading, that the

meter ina service connection is not correct or defective or burnt, the meter will be replaced

within 30 days after collecting the charges applicable.

5.10. Interruptions and Restoration of Supply

Supply will be restored as per the time schedule furnished below:

TABLE 3: INTERRUPTION AND RESTORATION OF SUPPLY

Interruption due to Power Restoration Time

Corporation Urban

Municipalities

Rural Hill Area

HT Supply failure 1 hour 3 hours 6 hours 12 hours

Fault in Transformer

structure or LT line or

Pillar Box

2 hours 4 hours 6 hours 12 hours

Fault of Distribution

Transformer

24 hours 48 hours 48 hours` 48 hours

Individual Service

Connection fault

3 hours 9 hours 12 hours 24 hours

Complaints of failure/interruption at consumer premises in rural areas and urban areas

other than corporation limits will be attended to between 8.00 A.M. and 6.00 P.M.

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5.11. PLANNED SUPPLY INTERRUPTION

In our efforts to supply the best possible service, we often have to work on

our distribution network to improve it or to connect new consumers. This may result in

interruption of your electricity supply. When such interruption is necessary, we will inform

you in advance by publishing it in newspapers.

5.12. RECONNECTING SUPPLY

In some instances, we have to disconnect service connection for non payment

of electricity charges. Once you have paid the bill along with arrears, if any, we

will reconnect the service.

5.13. COMPLAINTS RESOULTION PROCEDURE

If you have concern or complaint about any of the services we offer, you can

make a complaint over phone or in person or through a letter to any of our section offices or

sub division offices concerned, which is located nearer to your residence. If you feel that

your complaint needs the attention of a higher level officer, you can send your complaint to

the Executive Engineer or Superintending Engineer or Chief Engineer concerned or contact

them in person in their offices on all working days between 2 PM and 3 PM. You are free to

get your grievance redressed by the top officials in the Head Quarters offices viz. Member

(Distribution) or Chairman at 144, Anna Salai, Chennai-600 002.

In order to mitigate your hardships, we hold grievance day meeting by the

Superintending Engineer concerned once in a month in each division of the circle. We

display the date of the grievance day in advance on the notice boards of the division

offices. You can also contact any of our offices to know about the grievance day

meeting. You will get your grievances redressed at the grievance day meetings.

In all the distribution circle offices, there is a Public Relation Officer, who is

attending to your grievances. In addition, there is a Chief Public Relations Officer in the

head quarters office at Chennai (Phone No.28520902). They will take up your problems and

solve them.

Chief Engineers/Distribution Region is holding conferences with voluntary

consumer organizations. If you have a problem common to your locality, say for example

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low voltage, you can represent them through such organizations. We will study the load

distribution in the area and arrange to install additional sub-stations/transformers or

strengthen the HT/LT lines to improve voltage.

Consumer Grievance Redressal Forums (Framed as per the Tamil Nadu Electricity

Regulatory Commission Regulation) are formed and functioning in every distribution circle

office. Consumers may approach these forums for redressal of their grievances.

Computer based power failure redressal call centres are functioning

at Chennai, Coimbatore, Madurai, Trichy and Erode. Consumers can register their power

supply failure complaints by dialling a 6 digit number 155333 from anywhere. Address of the

consumer is retrieved at this call centre from the computer data base on the

contact phone number of the consumer. Complaint of the consumer is registered in the

computer and complaint number is given to the consumer.

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6. PRODUCTION DETAILS

TABLE 4: LIST OF BIOMASS PLANTS

SL.NO NAME OF THE BIOMASS PLANT CAPACITY IN MW

FUEL USED

1 M/s. Mohan Breweries & Distillaries Ltd.Palayaseevaram Village, Kanchipuram (Dt.)

18.00 Wood Chips, Sugarcane trash

2 M/s. Arashi Hi-Tech Bio-Power Ltd., Varapatti Village, Palladam taluk, Coimbatore district.

1.60 Coconut Fronds, Coconut shell, coconut husk, Coir & Pith

3 M/s. G.K. Bio Energy Pvt. Ltd. Namakkal, Erode dist.

1.5 Poultry waste

4 M/s.C.M.D.A., Koyambedu Veg. Market Bio-metharation plant, Chennai

0.25 Vegetable waste (Biogas generated from Biomethanation of veg. waste)

5 M/s.Chitra Bio Energy Ltd., Pudukottai, Pudukottai dist.

7.50 Prosopis Juliflora.

6 M/s.Subashri Bio Energy (P) Ltd., Tiruchengode, Namakkal

2.50 Poultry waste

7 M/s.Aurobindo Agro Energy Pvt. Ltd., Viragadi Kadambangulam, Kalayarkoil, Sivagangai dist.

15.00 Prosopis Juliflora.

8 M/s.Prathyusha Power Pvt. Ltd., Thuvarasi village, Tirunelveli Dist.

10.00 Rice husk, Woody biomass & Prosopis Juliflora.

9 M/s.TCP Ltd., Kalanivasal village, Karaikudir taluk, Sivagangai dist.

9.0 Juliflora Woody Biomass

10 M/s. Shriram Investments Ltd.Seeval Saragu village Dindigul (Dist)

7.5 Cocount leaf stem, maye stech & Sugarcane trash

11 M/s. Empee Distilleries (Pvt) Ltd., Mukkudi Village, Aranthanki taluk, Pudukottai D.t

10.0 Prosopis Juliflora and eucalyptus.

12 M/s. Renuka Textiles Limited., Unit II Thappukundu, Veerapandi village, Theni dist.

4.5 Deoiled Bran,saw dust, Rice husk, Corn stem & coconut thatches

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13 M/s.Manali Petrochemicals

Ltd.,Ponneri TK,Thiruvallur

District

4.7 Wood chips,Juliflora,cashew,casurina,Mango

14 M/s.Shriraam City Union Finance Ltd.,Kurichi village,Thanjavur Dist

7.5 Prosopis Juliflora,wood chips,coconut leaf &stem

15 M/s.Astro Energy and Bio Systems Ltd.,Kadanery village,Periyar TK.,Madurai Dist

10 Prosopis Juliflora

16 M/s.ETA Power Gen.Pvt.Ltd.,Sattur T.K.,Virudhunagar Dist

10 Juliflora

17 M/s.Synergy Sakthi Renewable energy Ltd., Uthangarai T.K,Dharmapuri Dist

10 Juliflora

18 M/s.Global Power Tech. Equipments Pvt.Ltd.,Vandavasai, T.K.,Thiruvanamalai Dist

7.5 Juliflora

19 M/s Saastha Energy (P) Ltd., Mambakkam village, Arcot tk,

Vellore Dist

2.0 Juliflora

TOTAL 139.05

TABLE 5: BAGASSE BASED COGENERATION POWER PLANTS IN

SERVICE

S.no Name of Developer and Location of Cogeneration plant Installed

Capacity (MW)

1 M/s M.R.K.Co.op Sugar Mills,Senthiathope 7.50

2 M/sCheyyar Co.op Sugar Mills 7.50

3 M/s. Rajashree Sugars & ChemicalsLtd.,Vaigai Dam 12.00

4 M/s. Kothari Sugars & ChemicalsLtd.,Katur,Lalgudi,Trichy

Dist.

12.00

5 M/s.Dharani Sugars &Chemical Ltd., Karaipoondi village

,PolurT.k, Thiruvannamalai dist.

15.00

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6 M/s.EID Parry (India) Ltd.Nellikuppam 24.50

7 M/s. S.V Sugar Mills Ltd.,Palayaseevaram village,

Kanchipuram Dt.

45.00

8 M/s. Subramania Siva Co-op Sugar Mills

,Gopalapuram.Dharmapuri Dist

05.00

9 M/s. Sakti Sugars Ltd., Padamathur ,Sivaganga Dist. 35.00

10 M/s. Arunachala Sugars Ltd., Melapambadi

village,Thiruvannamalai

19.00

11 M/s. Bannari Amman Sugars Ltd.,Alathukombai village,

Erode Dist.

20.00

12 M/s.Shakti Sugars Ltd., Sakti Nagar,Appakudal,Erode 32.00

13 M/s. Rajashree Sugars &

ChemicalsLtd.,Mundiambakkam,villupuram

22.00

14 M/s Terra Energy Ltd., Thirumandangudi, Papanasam T.k,

Thanjavur Dt.

28.42

15 M/s.Auro Energy Ltd., Kottur,Thuhili,Thiruvidaimarudur 16.00

16 M/s. Ambika Sugars (Previously M/s. SREL) Pennadam 40.00

17 M/s.Terra Energy Ltd., A..Chitoor, Viruthachalam Tk. 18.68

18 M/s. EID Parry India Ltd., Aranthangi, Pudukottai 18.00

19 M/s. Kothari Sugars &ChemicalsLtd.Sathamangalam,

ariyalur T.k.Perambalur Dt.

22.00

20 M/s.EID Parry (India) Ltd.Pugalur taluk, Karur Dist. 22.00

21 M/s. Sakti Sugars Ltd., Poondurai Semur vilage, Erode

,Elumathur

24.50

22 M/s. Rajashree Sugars&Chemicals ltd.,Semmedu

village,Villupuram dist

20.00

23 M/s Dharani Sugars & Chemicals , Kalayanallur village,

Tirukoilur Division, VillupuramDt.

22.00

24 M/s EID Parry India Ltd., Pettavaithalai, Srirangam T.k,

Trichy Dist.,

18.0

25 M/s Dhanalakshmi Srinivasan Sugars Pvt Ltd., Udumbiam

village, Perumbalur Dist.,

25.0

26 M/s Bannari Amman Sugars and Chemicals 28.8

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Ltd.,Kolundampattu village,

27 M/s Empee Sugars & Chemicals Ltd., Iddaikal village,

Ambasamutharam T.k, Tirunelveli Dist.

50.0

Total 609.9

6.1. Installed Capacity

To satisfy the energy needs of the state, erstwhile Tamil Nadu Electricity Board has a

total installed capacity of 10,214 MW which includes Central share and Independent Power

Producers. Other than this, the state has installations in renewable energy sources like

windmill, Bios mass and Cogeneration up to 5586 MW. As of now, the total installed

capacity in Tamil Nadu is 15800 MW.

http://www.tneb.in/inscap1.php

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7. GENERATION:

7.1. DRY BOTTOM ASH HANDLING SYSTEM FOR 600 MW

UNITS

Present system:-

In the existing Boilers of Thermal stations in Board, only the wet system of Bottom

ash handling is installed. In this system, the hot clinkers and the bottom ash falling from the

Boiler is mixed with water and powdered in clinker grinder and then formed into a slurry.

This slurry is pumped into the Ash dyke and stored. After drying, the ash is reclaimed and

used for land filling purposes.

Dry system:-

The dry bottom ash handling system is proposed for the 600 MW units at NCTPS and

MTPS. In a typical dry bottom system there will be sliding gates (10 pairs) installed below

the boiler furnace. In between the sliding gate and the furnace there is a Mechanical seal

which prevents air ingress into the furnace. Below the bottom ash hopper there are metallic

conveyor belts which run continuously carrying the hot bottom ash and discharging into the

crusher. At the discharge end of the belt there is a flap gate which is crack opened to allow

atmospheric air to enter the hopper for cooling the ash. The cooled ash is crushed in the

Primary crusher and secondary crusher (if required) and sent to the ash silos for collecting the

ash in any of the 3 forms i.e. Dry/semi wet with humidifier/Completely wet). The dry ash is

evacuated from the crushers by vacuum pumps and stored in the silos for disposal by trucks

to the user industries

Advantages:-

1) The wet system involves huge water consumption.

2) High maintenance costs due to corrosion and clogging.

3) Environmental issues due to leakages of contaminated water and loss of boiler

efficiency, and negative effects on boiler operation due to low reliability and poor

maintainability of wet system. This wet system is objected by the MOEF, New Delhi since

this system requires huge quantity of water which has become scarce. The wet ash stored in

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the dyke contaminates the ground water table and also large area is occupied by the ash dyke.

If sea water is used for collecting the Bottom ash, then the ash can be used for land filling

purposes only. If the wet system is replaced is by dry system the ash dyke area can be

beneficially used for plant purposes. The dry bottom ash can be used for downstream

industries like cement and brick making. Board will also be monetarily benefited by way of

sale of dry fly ash to the user industries

7.2. PROPOSED PIPE CONVEYOR SYSTEM FOR ENNORE

THERMAL POWER STATION

General:-

This system is meant for transportation of coal from North Chennai Thermal Power

Station coal yard directly to ETPS for both the existing 450 MW station and the proposed

1x600 MW, replacing the present system of transportation by Rail wagons. The approximate

length of the proposed pipe conveyor is 4.5 Kms. This system is the first of its kind in TNEB.

Figure 5.1 PIPE CONVEYOR SYSTEM

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Description:-

The pipe conveyor as the name indicates, will be of either rubber cord / steel cord

belt conveyor in the flat form while taking up the material and as it gradually moves in

between the rollers arranged in a hexagonal position, wounds itself into a form of closed pipe

and then at the discharge end it again gradually opens out to take a flat form and after

discharging the material again it folds into the pipe form and returns back to the receiving end

for continuous carrying of material.

Advantages:-

1. The pipe conveyor is a cost effective and eco – friendly method of transportation of

coal to ETPS.

2. If the coal is transported by a Pipe conveyor, pollution and pilferage is avoided

during transportation which is not the case when transportation is done by rail wagons.

3. Pollution inside the ETPS is also reduced since the crushed coal is transported to the

station through the pipe conveyor thereby avoiding coal unloading and crushing at ETPS.

4. A pipe conveyor can take an inclination of up to 35 degrees and can bend both

vertically and laterally to take a profile that will match with the surface on which it is to be

installed.

5. A pipe conveyor can be used for dual purpose also i.e. it can carry coal in the

forward direction and in the return direction it can take the fly ash.

The capacity of the proposed pipe conveyor is 2000TPH with 2 streams i.e. 2

x1000TPH with pipe diameter of 400 mm.

It is proposed to implement this system for Udangudi Power Corporation Ltd also.

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7.3. GAS INSULATED SWITCH GEAR SUBSTATION

Figure 5.2

The Gas Insulated Switchgear System is a modern technology replacing the

conventional open Air System for Sub Stations. The above system is called as GIS System

since the activities involving both switching operation, and breaking the system under live

condition are carried out with the switchgears inside the gas filled chamber instead of in open

air system. The gas employed is SF6 which possesses a high degree of Dielectric strength.

The GIS system is highly reliable involving very minor maintenance and occupies only

a small area when compared to the convention one. It gives total environmental protection

and free from fire hazards as all the activities are done inside the closed chamber. The failure

rate of the above system is also very negligible. It is highly resistant to pollution, compared

to the conventional type and free from environmental effects such as salt deposits in coastal

regions, sand storms and humidity in the atmosphere etc. Insulator cleaning is also

eliminated.

Live parts i.e. Buses and Connections are within earthed enclosures and are

inaccessible, thus giving maximum safety to the operators. The civil works are also

minimized. Due to this system’s compatibility, it is possible to erect a GIS substation in

densely populated areas, for both outdoor and indoor use in accordance with client’s

requirements.

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The TNEB has already commissioned one 230/110 KV Substation with GIS System

at Mylapore in Chennai during 1998. The above GIS Substation is in service for the past ten

years without any break down. Considering the advantage of GIS System, the TNEB has now

proposed 400 KV GIS Substation first time in TNEB in the forth coming Thermal Plants as

below

1. North Chennai Thermal Power Station Stage II (2 * 600 MW)

2. Metter Thermal Power Station (1* 600 MW)

Also proposal for evolving few more GIS Substation at 230 KV level as given below is also

under consideration.

a. TNEB Head quarters 230 KV GIS Sub Station.

b. Guindy 230 KV GIS Sub Station.

c. Central Jail 230 KV GIS Sub Station.

North Chennai Thermal Power Station – Stage II (2x600MW)

General:

TNEB is generating power from various sources viz. Hydro, Thermal, Gas and Wind. In

respect of thermal generation so far the highest capacity of single unit established in Tamil

Nadu Electricity Board is 210 MW only. The following 12 Thermal units of 210 MW are

under operation with plant load factor of more than 85%.

NCTPS : 3 x 210 MW

MTPS : 4 x 210 MW

TTPS : 5 x 210 MW

Tamil Nadu Electricity Board has now awarded EPC contract to M/s.BHEL for

establishment of 2x600 MW NCTPS, Stage-II in the premises of existing NCTPS

complex. They are under execution stage and the units will be put into operation during the

year 2010-2011.

Though M/s.BHEL have executed more than 30 sets of 500MW unit, this is the first 600

MW order for M/s.BHEL.

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Turbine:

The configuration of the Turbine is based on the proven configuration of BHEL’s 500

MW units. The 600 MW units will have HP & LP turbine modules of 500 MW sets coupled

with two LP modules of 250MW sets. M/s.BHEL have informed that the configuration of

the above modules is capable of delivering 600 MW gross capacity.

Steam Generator:

The steam generator will be two pass, single drum, balance draft and tangential

fired. The existing boilers of 210 MW capacity are having natural circulation whereas 600

MW steam generator will have controller circulation.

Environmental Friendly:

The Electrostatic precipitator is designed to limit the emission level to 50 mg/Nm³ at

100% BMCR firing worst coal.

Sea water contain large amount of microbiological fluids which will foul the sea

water conducting system. Chlorine is the most commonly used disinfectant for water

treatment for prevention of bio-fouling. But there are limitations in use of

chlorine. However, this project will adopt electro chlorination technology which is adapted

first time in our thermal power plant. The function of the Electro-chlorination system is to

generate NaOCl which will be effective in preventing fouling thereby creating hostile

environment by continuous chlorination of the cooling water circuits. Sea water will be

delivered to the Electro-chlorination plant by sea water booster pumps. Sea water will be

strained to remove solid particles by sea water strainers with automatic backwash facility for

cleaning of filtering element. The generation of available chlorine from sea water a dilute

hypochlorite solution will be carried out in Hypochlorite generator by electrolysis cells of

hypochlorite generators will be provided by Transformer rectifiers. Hypochlorite dosing is

done at fore bay, traveling water screens and water box of the condenser.

27

8. RAW MATERIALS

ALL EUIPMENT DETAILS OF 230KV SS GOBI

ARASUR 230 FEEDER BREAKER

Sl. No.

Details

1 Date of Commissioning : 27.03.95

2 Make : Crompton Graves Ltd., Nasik.

3 Type : 200SFM – 40A

4 Year of Manufacturing : 1994

5 Sl.No. : DF6843C

6 P.O.No. : SE/MAUP/ES/A4/ENQ.31/93

: PoTR45/94/D501/94dt29.4.94

7 Rated voltage and frequency : 245 KV, 50 HZ

8 Rated Current (Normal) : 2000A

9

Rated Short Circuit (Breaking)

Current : 40 KA

10

Rated Duration of Short Circuit

Current : 3Sec

11

Rated Lightning Impulse with stand

voltage : 1050 KVP.

12 Rated Line Charging current : 125 A.

13 First Pole Factor : 1.3

14 Rated Operating sequencing : 0.3sec 3Min- CO

15

Rated voltage and frequency for

Auxiliary Circuit : 415 V, AC 3Phase, 50Hz.

16 Rated Operating Voltage : 110V DC (Closing & Opening)

17 Air Pressure: Rated Pressure : 15 Kg/CM²

Low Alarm : 13.2 Kg/CM²

Lock out

Pressure : 12.0 Kg/CM²

18 SF6 Gas : Rated Pressure : 6 Kg/CM²

Low Alarm : 5.5 Kg/CM²

Lock out

Pressure : 5.0 Kg/CM²

19 Gas Weight : 21 Kg.

20 Total Weight with Gas : 3900 Kg.

28

21 Rapturing capacity (1.732 * V * I) 17000 MVA

22 Air Compressor Motor

Sl.No. : 1632 N21/HC2737

Volt : 415V, 50 Hz.

Amps : 4.8 KW / HP : 2.2/3.0

Rpm : 1405 Rating : CONT.

Amp. Temp. : 40°C, Class : B Insulation

Frame No. : ND1001

Bearings : 6206 LVB Lithium, TMB : 40°C

METTUR 230 KV FEEDER BREAKER

Sl. No.

Details


2 Make : ABB

3 Type : ELFSL4-1


5 Sl.No. : IB109150

6 P.O.No. : PoTR134/94/D816/94dt16.12.94

7 Rated voltage : 245 KV


9 Operating Voltage : 110V DC

10 Auxiliary Circuit A.C Supply : 415V,500,3Phase

11 Air Pressure: Rated Pressure : 20.5 BAR

Low Alarm : 18.0 BAR

Lock out Pressure : 16.7 BAR

12 Gas : Rated Pressure : 7.0 BAR at 20°C

Low Alarm : 6.2 BAR at 20°C

Lock out Pressure : 6.0 BAR at 20°C

29

SALEM 230 KV FEEDER BREAKERS

Sl. No.

Details

1 Date of Commissioning : 27.03.95 (23.12.96)


3 Type : 200SFM – 40A SF6 Gas


5 Sl.No. : DF6842C


: PoTR45/94/D501/94dt29.4.94



9

Rated Short Circuit (Breaking) Current : 40 KA

10


Current : 3Sec

11


voltage : 1050 KVP.



14 Rated Operating sequencing : 0.0.3sec 3Min- CO

15

Rated voltage and frequency for Auxiliary Circuit : 415 V, AC 3Phase, 50Hz.


17 Air Pressure: Rated Pressure : 15 Kg/CM² at20°C

Low Alarm : 13.2 Kg/CM² at20°C

Lock out

Pressure : 12.0 Kg/CM² at20°C

18 SF6 Gas : Rated Pressure : 6 Kg/CM² at20°C


Lock out Pressure : 5.0 Kg/CM² at20°C



21 Air Compressor Motor

Sl.No. : 1632 N21/GE4660

Volt : 415V, 50 Hz.

Amps : 4.8 KW / HP : 2.2/3.0

30

Rpm : 1405 Rating : CONT.

Amp. Temp. : 40°C, Class : B Insulation

Frame No. : ND1001

Bearings : 6206 LVB Lithium, TMB : 40°C

230 KV BUS COUPLER

Sl. No.

Details



3 Type : 200SFM – 40A


5 Sl.No. : DF6841C


: PoTR45/94/D501/94dt29.4.94



9 Rated Short Circuit (Breaking) Current : 40 KA

10


Current : 3Sec 40KA.

11


voltage : 1050 KVP.




15



16 Rated Operating Voltage : 110V DC






Lock out


31



AUTO TRANSFORMER I HV BREAKER

Sl. No.

Details



3 Type : 200SFM – 40A


5 Sl.No. : DF6844C


: PoTR45/94/D501/94dt29.4.94



9 Rated Short Circuit (Breaking) Current : 40 KA

10


Current : 3Sec.

11

Rated Lightning Impulse with stand voltage : 1050 KVP.




15









Lock out




32

AUTO TRANSFORMER II HV BREAKER

Details

Date of Commissioning : 28.02.96

Make : ABB

Type : ELF Sl.4.1

Year of Manufacturing : 1995

Sl.No. : IB109155

P.O.No. : SE/MAUP/ES/A4/T.509/

:

PDTR.134/94/D816/94dt16.12.9

4

Rated voltage and frequency : 245 KV, 50 HZ

Rated Current (Normal) : 2000A

Rated Short Circuit (Breaking)

Current : 40 KA

Rated Duration of Short Circuit Current : 3Sec.


voltage : 1050 KVP.

Rated Line Charging current : 125 A.

First Pole Factor : 1.3

Rated Operating sequencing : 0.0.3sec 3Min- CO


Auxiliary Circuit : 240 V, AC

Rated Operating Voltage : 110V DC

Air Pressure: Rated Pressure : 7.0 BAR at20°C

Low Alarm : 6.2 BAR at20°C

Lock out

Pressure : 6.0 BAR at20°C

SF6 Gas : Rated Pressure : 20.5 BAR at20°C

Low Alarm : 18.0 BAR at20°C

Lock out

Pressure : 16.7 BAR at20°C

Gas Weight : 21 Kg.

Total Weight with Gas : 3900 Kg.

Air Compressor Motor

Make : ELGI ABB

Model : THPC200 HX100LAA

FAD 1DIS : 100 Hrs/Min. Sl.No. : 665105

FAB No. : 57002 INS : CLASS F

33

Work Pressure : 20.5 Kg Km² Volt : 415V. AC 3Phase, 30Hz.

Unit Rpm : 450 KW/HP : 2.2/3.0

Motor HP : 3.0 Rpm : 1415

H.O. Mfg. : 3/1995 Amps : 4.8

Gpease : Castrol AP3/Equivalent

Bearing : D63062 Bearing : N62062

AMB : 40°C

230 KV POTENTIAL TRANSFORMERS

Sl. No.

Details PT-1 PT-2

1

Date of

Commissioni

ng : 27-03-1995 27-03-1995

2 Make : TELK

CROMPTON GREAVES

LIMITED,NAIAK

3 Type : CPOEGLV CVE 245/1050/50

4

Year of

Manufacturing : 1993 1994 (W.O.:W221611)

5 Sl.No. :

730065-14,730065-

15.730065-9

5954(B),5955(Y),5956

®

6 P.O.No.

: SE/MAUP/ES/A4/T.457/D1206/ POTR102/.92 dt14.12.92

161/92dt04.12.92.

7

H.S.VOLTAG

E : 245 KV 245 KV

8

PRIMARY VOLTAGE : 230/√3 KV 230/√3 KV

9

INSULATION

LEVEL 460/1050KV 460/1050KV

10

Secondary

Winding I : 110/√3V 400VA

110/√3V

400VA

11

Secondary

Winding II :

110V 150VA

(Protect)

110V

150VA (Protect)

12 Oil quantity : 200litres

13

Accuracy Class : W.I 0.5 W.II 3

14

Primary

Terminal : A1 A2

15

Secondary Terminal : 1a1 , 1a2 2a1, 2a2

34

16

Voltage

factor :

1.5 /30 sec 41.2

continuous 1.2 cmt / 1.5 - 30sec.

17 Voltage Ratio :

Pri 230/√3 KV

230/√3 KV

Cap. Oil : 45+-

10%Kg.

Sec.110 / √3V 110V

18 Weight : 1200Kg

19 Ratio :

230 / √3 KV /110√3V

400VA

230 / √3 KV /110√3V

400VA

:

230 / √3 KV /110√3V 400VA

230 / √3 KV /110√3V 400VA

20 Equal Capacitance : 4400I 10% PF.

21 Total Sim Burd/CL : 550V/C20.5

22 Total Nt. : 640+-10%Kg.

23 ENU Oil : 95+-10%Kg.

24 Volts :

230KV/√3 110√3

110

25 VA :

- 400 150

26 CL :

- 0.5

38

36

9. HUMAN RESOURCE

9.1. Employee details

STAFF STRENGTH AS ON 01.04.2010

SANCTIONED UTILISED VACANT

PROVINCIAL

OFFICERS

CLASS–I 1,014 971 43

CLASS–II 10,374 9,357 1,017

EMPLOYEES

CLASS–III(Office) 29,519 17,964 11,555

CLASS–IV(Office) 3,465 2,443 1,022

TOTAL 44,372 30,735 13,637

RWE

CLASS–III(Field) 48,731 29,251 19,480

CLASS–IV(Field) 45,237 21,596 23,641

TOTAL 93,968 50,847 43,121

COMBINED STRENGTH

PROVINCIAL 44,372 30,735 13,637

RWE 93,968 50,847 43,121

TOTAL 1, 38,340 81,582 56,758

37

9.2. HUMAN RESOURCE DEVELOPMENT

Training culture started as early as 1948 in Tamil Nadu Power Sector. Mettur

Technical Training Centre was started to train field staff. Now the training has grown with 4

major Institutes like

1. Transmission & Distribution Training & Development Institute/Madurai

2. Hydro Training Institute/Kuthiraikalmedu

3. Thermal Training Institute/Chennai

4. Staff Training College/Chennai

to cater the needs of Hydro, Thermal, Transmission and Distribution and Management.

Ten numbers "Technical Training and Development Centres" were established at

Pasumalai, Trichy, Tirunelveli, Thanjavur, Virudhunagar,Vellore, Thiruvannamali, Korattur,

Mettur and Coimbatore to cater the needs of staff working in Distribution Areas.

Also, One Cable Jointing Training Centre has also been formed to impart practical

training on cable jointing techniques at Chennai.

We feel proud to announce that TANGEDCO a subsidiary of TNEB Ltd, is the first

to design a Training Policy amongst the power Utilities in India.

Our mission is “Training for All”

Each Employee has to undergo 3 to 5 days training each year under

Enmass Knowledge Updating Programme. For this, “two months in a year” are declared

as EKUP months.

Also Special Programmes as per the “Training Need Analysis” are being conducted.

All Training programmes are designed as development & practical oriented ones.

Also Distribution Transformers are being adopted by Training Centres. Training

faculties visit the Distribution Circle Headquarters and demonstrate the importance of

earthing to reduce the transformer failure. By adopting the above practice, transformer failure

rate has been brought down to 3.30%.

Training programmes are carried out to attend minor repairs of Distribution

Transformers at site independently. Training at manufacturer's premises are frequently

carried out.

38

Certificates are issued to Distribution Engineers for “Failure Free” and “Accident

Free” sections.

Training has been effectively used to bring about change in attitude. Proactive

Excellence Training for Union Representatives, Training on topics of current interest, Power

sector reforms, Consumer Satisfaction, Electricity Act 2003, RTI Act 2005 are some of the

training programme imparted to Engineers and Staff to create awareness of the changes

taking place in the power industry.

HRD&HRM training for trainers are being given in Anna Institute of Management.

Trainers are sent to various institutions like PMI / NTPC, NPTI, ESCI, PFC and other

institutions for knowledge upgradation.

Trainers are sent to foreign countries like JICA,Japan to enhance their skills and later

imparting their knowledge gained to our own employees through several training

programmes

We feel Proud to announce that the following 3 Institutes have been recognised

by CEA/Ministry of Power/Government of India/New Delhi as Category I Institutes:

• Transmission & Distribution Training & Development Institute, Madurai

• Hydro Training Institute, Kuthiraikalmedu

• Thermal Training Institute, North Chennai

Also numbers of technical seminars are organized through different manufacturers to

upgrade the knowledge on the products in the market.

Graduate Apprenticeship as well as Diploma Apprenticeship training is given to fresh

graduates and diploma holders as per the Apprenticeship Act.

Induction Training is provided to all Officers and staff of all categories both

Technical and Non-Technical.

In addition to this, TNEB officials are sponsored to other utility Training centres like

ESCI / Hyderabad, PMI / Noida, CPRI / Bangalore, NPTI / Neyveli etc.,

From 2005-06, USAID funded DRUM training programmes have been conducted for

Class I&II employees in T&DT&DI/Madurai & STC/Chennai.

39

From 2009-10 National training programmes for Class C&D employees are being

conducted for Class III & IV employees in our Institute/Centres of HRD Department with

funding from REC.

Similarly R-APDRP Capacity Building programmes for class C&D employees are

being conducted from January 2010 with funding from Power Finance Corporation.

Also efforts are being taken to arrange for the conduction of R-

APDRPCapacity Building programmes for Class I & II employees.

Apart from this, efforts are being taken to conduct the training programmes for the

employees of other State Electricity Department like Puducherry and Andaman & Nicobar

Islands

In this financial year, “Energy conservation & Electrical Safety” Training

programmes are arranged to be conducted in all the Institute/Centres to cover and achieve a

target of 1 Lakh people. In this connection “FICCI – Energy Conservation Personality

Award 2010” was received by the Chairman and Managing Director/TANGEDCO recently.

It is also noted that the HRD wing has also organizing training programme to out side

participants on payment basis. Necessary details may be obtained from HRD wing through

044- 28550860.

Apart from this, Students from various Institutions are permitted to do their “Inplant

training” and “Project work” by collecting a meager amount of Rs.500/- and Rs.1000/- per

student respectively by the concerned station heads

9.3. CABLE JOINTING TRAINING & DEVELOPMENT CENTRE

Profile

The Cable Jointing Training and Development Centre was established in the year

1962 and functioning at 33/11KV Nehru Indoor Stadium SS/I Floor, Kannappar Thidal,

Chennai-3

CJT&DC is an exclusive & only training centre which gives hands on

practical training to the work force (Field Staffs) & make them as Skilled Jointers .It is

unique in its kind in India.

40

Training programmes were conducted by this centre to the foreign nominees (Field

staff) eg NEPAL. The Cable jointers trained from this institute are getting foreign

opportunities. More number of cable jointers trained from this centre are still working in

foreign Countries - particularly in ARAB Countries.

At present training is given to both the officers & work force of TNEB and training is

imparted to the trainees both in theory and practical.

For the FIRST TIME ,CJT&DC extends its service to outside persons (in the

level of Engineers/ Supervisors/ Managers) other than TNEB and conducted 2 days

National level “Awareness training programme about Under Ground Power Cables &

Jointing Techniques” at Howard Hall, TNEB Head Quarters, Chennai -02 .

FUTURE TREND:

In future the LT over head lines will be slowly replaced and distribution system

will be maximum with UNDER GROUND POWER CABLES & hence cable jointing

training is gaining more importance.

The Cable Jointing Training is very much essential and necessary, since joints are

the weakest portion of the cable network and the reliability depends upon the human skill of

the cable jointer.

In the CJT&DC cable jointers are trained in a systematic way and their HUMAN

SKILL is improved. To carry out the quality oriented joint and there by reducing cable joint

failures results in maintenance of uninterrupted supply to the fullest satisfaction of the

consumers.

METHODOLOGY OF TRAINING:

The Cable Jointing Training Centre is the hands on practical oriented Training Centre.

Theory session

Architecture of Power Cables, Earthing & safety aspects in the Power Cable

Network & modern trends.

Important Points to be taken care in the field of Power Cable Laying, Handling,

Transportation & Storing.

Lecture about Power cable Jointing techniques & latest developments.

41

Practical session

After completion of theory classes, the trainees are split into groups comprising of 3

or 4 members .They are trained to do the Joints along with the cable and jointing kit under the

supervision of experienced ForeMan/ Jointer .Finally after completion of the training

programme the individual will be able to perform the joint independently in the field.

Cable Jointers trained by CJT&DC for the 2008- 2009-2010

Low voltage cable Jointers - 297 Nos

High voltage 11 KV cable jointers - 147 Nos

High voltage 33 KV cable jointers - 64 Nos

10. LIST OF TRAINING CENTRES ALL OVER TAMILNADU

Sl.No Name of the Centres

1 Pasumalai

2 Thiruvannamalai

3 Thanjavur

4 V

5 Tirunelveli

6 Mettur Dam

7 Trichy

8 Vellore

9 Coimbatore

10 Korattur

PROGRAMMES

The Programmes are being conducted at the TTDCs for the Class III & IV

employees. In all the Training modules more attention is given to practical on-site training

programmes.

Other Important Training Programs:

Training programmes funded by Rural Electrification Corporation Ltd. is being

conducted under Variant - I,II,III and has been ranked number one among the training centres

at the national level in conducting tarining programmes to Class C & D employees.

42

The Programmes funded by Power Finance Corporation under R-APDRP-Part-C,

'Capacity Building of Personnel' on the following 4 themes.

1) Best Practices in Distribution Operation & Management.

2) Disaster Management & Electrical Safety Procedures & Accident Prevention

3) Lineman Training & Operation & Maintenance of Sub- Stations

4) Communication & Customer Relations.

10.1. LIST OF MODELS AVAILABLE

ENERGY CONSERVATION MODEL

MEASUREMENT OF VARIOUS TYPES OF ILLUMINATION

ENERGY CONSERVATION IN STREET LIGHTS

ACCIDENT PREVENTION BY USE OF ELCB

EFFECT OF PROVIDING NON STANDARD FUSES

NEUTRAL DISPLACEMENT

SUB-STATION LAY OUT-RADIAL-PROTECTION

AERIAL BOX

BREATHER

SOLAR LANTERN

VARIOUS TYPES OF METERS FOR READING PARAMETERS

POWER FACTOR IMPROVEMENT

TYPES OF KNOTS

DIFFERENT TYPES OF CLAMPS

10.2.Special events at Tiruvannamalai TTDC

Centres are participating in various State level Exhibitions conducted all over Tamil

Nadu and won prizes

Centres used to conduct many Exhibitions during Energy Conservation Week and the

models received a very good response from Consumers and created awareness also.

First time in the History of the TTDCs, Tiruvannamalai Training Centre has imparted

Training to the Staff of Other utility, Puducherry Electricity Department, under R-

43

APDRP, Programme, funded by PFC. This is a mile stone in the History of TT&DC,

Tiruvannamalai.

10.3. SPECIAL ACTIVITIES

Tiruvannamalai Centre has undertaken a Pilot project” Marching towards excellence”

which aimed at the improvement in Tail end voltage as per our Chairman’s

instructions and completed the same.

Conducted safety awareness programmes to the field staff with a view to create

awareness on safety and to curb out the accidents.

With a view to motivate the Officers and staff in maintaining the Distribution Section

as “Distribution Transformer Failure free”, Sections with “no DT failure” is identified

and awarded with a certificate and a Shield”. Special awards are being given to those

Sections which are failure free for more than a year. This will pave the way to reduce

DT failures.

Centres used to conduct classes using animation Techniques for easy learning and

understanding by the Trainees.

10.4. STAFF TRAINING COLLEGE-CHENNAI

Figure 7

Staff Training College was established in 1979 for imparting Managerial /

Administrative oriented Induction training to entry level Engineers prior to assigning them

in their positions. Now Staff Training College is providing various Management and Need

44

Based Training to both Engineering and Non Engineering personnel to build Individual and

Organisational Competence in various related areas. Apart from imparting training to home

employees we also impart onsite training to the employees of other State Electrical Utilities,

Practical Orientation Training for Students of Engineering Colleges and Awareness training

on Energy Conservation and Electrical Safety to Public/Students of Schools/Colleges.

10.5.TRAINING PROGRAMMES AT STC

Figure 8

1. REGULAR PROGRAMME

Induction Training Programme

Pre-Promotional Training Programme

Planning for Post-Retirement Life

2. MANAGEMENT PROGRAMME

Executive Development Programme

Quality tools for Effective Management

Managing Performance: Achieving Results

Building Leadership Excellence

Strategic Change Management

Customer Relationship Management

Problem solving techniques & Decision making skills

Effective Communication skills for Performance Excellence

Positive Attitude towards Organisational Excellence

Growing through Change

Best Practices for Organisational Development

45

Organisational Excellence through Self Development

Enhancing Workplace Relationship

Developing High Performance Teams

Proactive Excellence for Union Executives

Stress - the spice of Life

3.NEED BASED PROGRAMME

Financial Management for Non-Financial Executives

Implementation of EA2003 - Strategies and Opportunities

Management of Power Business

Grid Discipline and Management

Open Access - Issues and Challenges

Project Management

RTI Act 2005

R-APDRP

Safety & Disaster Management

Integrated Materials Management

TQM in Power Sector - Need & Strategy

Environmental Issues, NCES & CDM

Energy Conservation, Energy Accounting and Auditing

Inventory Management

Costing, Budgeting and Balance Sheet

Court Craft and Court Procedures

IT Initiatives

Health Awareness

ON-SITE PROGRAMME

Right to Information Act 2005

Legal Aspects

Disciplinary Proceedings

46

NATIONAL LEVEL DRUM (Distributed Reform, Upgrades and Management)

TRAINING PROGRAMME - funded by USAID through Power Finance Corporation of

India

Performance Benchmarking & Quality of Electricity Supply & Service

Customer satisfaction, Communication & Outreach

Change Management in Power Distribution

GIS Based Distribution System Planning, Analysis and Asset Management

Communication Skills, Employee Motivation & Morale Development

THE MODULE DESIGNED BY STC FOR THE DRUM TRAINING PROGRAMME

“COMMUNICATION SKILLS, EMPLOYEE MOTIVATION & MORALE

DEVELOPMENT” IS BEING USED BY THE PARTNER TRAINING INSTITUTIONS

ALL OVER INDIA

TRAINING PROGRAMMES FUNDED BY RURAL ELECTRIFICATION

CORPORATION

Rural Distribution Franchising

Energy Auditing and Accounting

SPECIAL ACHIEVEMENTS

Management Training for the Officers of Electricity Department of

Puducherry/Govt. of Puducherry.

A workshop on “Tender Procedures” was conducted for prospective bidders of

TNEB.

FUTURE PLANS

Shortly to undertake Management Training to the employees of Puducherry

Power Corporation Limited, Karaikkal.

47

¨ STudents Empowerment Programme (“STEP”) for the final year students of

School of Electrical Engineering / V.I.T.,Vellore

INFRASTRUCTURE

• National Level Workshop inviting participants from other electrical utilities.

• Seminar on Technical & Management Topics relevant to Thermal Power Stations

Need based Training Programmes

First Aid Training Programme to Safety Committee Members and other employees

in NCTPS

Workshop on “Means to overcome Operational difficulties in Evacuation of Wind

Energy” at Thirunelveli for the Personnel of Wind Energy Development Circle,

Operation Circle & LD Centre.

Program on “Migration to ISO 9001:2008” from ISO 9001:2000 for Internal

Auditors in MTPS

Program on “Vibration Analysis” for the Engineers of ETPS

Program on “Project Management” for the Engineers of NCTP Project Stage II

and MTPP Stage III.

Program on “Contract Management” for personnel dealing with Contracts in

Headquarters Office and field for Thermal Power Station Projects.

48

FIRST AID

Thermal Training Institute/Vallur camp/ TNEB has been awarded certificate of merit

and shield in appreciation of training maximum number of employees of Tamil Nadu

Electricity Board in First Aid for the year 2002-2003, 2004 and 2006-07 by St.John

Ambulance, Tamil Nadu State. The shield and certificate were presented to Thermal Training

Institute in the St. John Ambulance, State convention by the Honorable Governor of Tamil

Nadu.

Exhibition

An Exhibition Cum Workshop on “Equipments, Components & Tools for Thermal Power

Generation” in association with Federation of Indian Chamber of Commerce & Industry

(FICCI) was conducted from 25.11.09 to 26.11.09 at NCTPS Vallur camp residential

quarters. This exhibition was held to impart Technical Know how on the latest Products,

Components & Tools available in the market on Thermal Power Generation for the Thermal

Power station Engineers of North Chennai & Ennore

49

11. CONSUMER CONSUMPTION

53

12. ACHIEVEMENTS

12.1. ACHEIVEMENT OF TNEB IN GENERATION AREA

TNEB has recorded its highest ever hydel generation by producing 6,292 Million

Units in 2006-07 and the same was surpassed in 2007-08 which was 6,455 Million

Units. (During 2008-09, Hydro generating stations generated 5382MU and during

2009-10 the generation was 5629MU).

Tuticorin Thermal Power Station has received award for excellence in Traffic

performance through the Tuticorin Port Trust as “Consignee of highest Imports” from

Government Of India for the years 2006-07, 2007-08 and 2008-09.

Unit IV of Mettur Thermal power station was in continuous service for 300 days as on

01.10.2009 surpassing the previous record of 272 days of continuous running by Unit

III of Mettur Thermal power station The Unit IV has been running since last

synchronization on 05.12.08, immediately after the Annual Overhaul. This feat has

been achieved in its 20th

year of service since the commissioning of the Unit IV at

Mettur Thermal power station. A high Plant Load Factor of 91.52 during October

2009 was recorded.

All the three Units of NCTPS were in continuous service for 70 days from 15.02.09 to

27.04.09 surpassing the previous continuous service record of 62 days from 14.03.06

to 16.05.06.

Ennore Thermal Power Station After completion of Renovation

&Modernisation works,(R&M) all the five units came into service and the daily

generation of 9.0054 MU achieved on 12.01.08 is the highest generation after a period

of 12 years & 7 months.

The gas station at Valuthur has been awarded the Bronze medal by the Union Minister

of Power for its performance evaluated at the all India level for the year 2006.

Co-Generation and Modernisation of Sugar Mills: Contract agreements have been

signed for execution of co-generation plants in 10 co-operative sugar mills and 2 Nos

public sector sugar mills alongwith modernization for a total capacity of 183 MW at a

capital cost of Rs1125.63 crores. Works are likely to begin shortly and expected to be

completed by August 2011.

54

12.2. ACHEIVEMENT OF TNEB IN TRANSMISSION AREA

Transmission and Distribution loss is at 18 % and AT&C loss is at 19.3 %. For

reducing those losses, implementation of High Voltage Distribution System and Rural

Load Management System are being carried out in addition to the regular measures.

During 2009-10, 1371 k.m length of EHT & HT lines had been laid. 78 number of

substations were commissioned.

Sunguvarchatram will be the fourth 400 KV Substation developed by TNEB and the

same is likely to be commissioned before June 2010 and also planning to establish a

400KV SS at Tiruvalam.

55

13. PROJECTS

58

14. SALIENT FEATURES AT GLANCE

1976-77 1986-87 1996-97 2006-07 2007- 08 2008 -09 2009-10

Installed capacity

(MW) 2,364 3,987 6,908 10,098 10,122 10,214 10,214

Generation

& Purchase

(MU) 8,350 14,853 32,700 63,563 66,848 66,966 72987*

Energy Sales

(MU) 6,576 11,999 25,805 50,159 53,370 53,506 70557*

Per Capita

Consumption

(KWH) 146 232 420 960 1,000 1,000 1,080*

Substations

Nos. 304 475 734 1148 1,202 1,259 1309

EHT &

HT lines

(Lakh Ckt.

Kms.) 0.715 0.919 1.25 1.54 1.63 1.64 1.69

L.T lines

(Lakh .Kms.) 2.14 3.00 4.01 5.01 5.18 5.26 5.39

Distn.

Transformers

(Nos.) 42,499 68,826 1,11,522 1,73,053 1,80,763 1,86,638 1,92,632

ELECTRIFICATION

Towns,

59

Villages & 63,274 63,755 64,063 63,956 63,956 63,956 63,956

Hamlets (Nos.)

Pumpsets (Lakhs) 7.85 11.16 15.67 18.02 18.39 18.72 20.63

Consumers

(Lakhs) 32.23 64.86 112.14 185.82 194.34 203.87 212.76

@ Reduction due to electrified villages de-electrified as per new definition on village

electrification

* Provisional

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15. SWOT ANALYSIS

Situation analysis begins the process of strategy formulation and attempt to find a strategic fit

between external oppurtunities and internal strengths while working around external threats

and internal weakness. There is need to indentify alternative ways that an organization can

use its specific strengths to capitalize on oppurtunities or to avoid threats and to overcome its

weakness.

Oppurtunities:

1. Huge investments leading to greater demand of goods and services.

2. Demand leading to industry operating at full and over capacity.

3. Better price realization.

4. Formation of business groups and tie ups for repeat orders.

5. Level playing field for private and public sector companies.

6. Increased exerternal commercial borrowings.

Threats :

1. Purchase preference may be extended to distribution sector.

2. Increased no. of small contractors leading to price war.

3. Political pulls and pressures may jeopardize the whole process, raising alarm about

the privatization and being anti people.

4. The overall process of liberalization of power sector is moving at a much faster pace

than the other contemperory countries. This pace couls lead to a total breakdown of

the system.

Weakness:

1. The procurement process in the companies is cumbersome and subject to auditing.

2. Low exposure to the needs and dynamics of distribution business.

3. Role clarity on the requirement of the being an equipment supplier or a solution

provider.

4. Acceptance of customers to execute low value high jobs.

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Strengths:

1. Good corporate image.

2. Complete range of product for transmission and distribution.

3. Established brand name.

4. Considered to having technology and design quality.

5. Strong and wide networks of manpower across india.

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16. CONCLUSION:

Conclude that it’s the nice experience for me to know the process of

the industry and how they solve the problem, and how to forecast the future.

It also enabled me to know the management tactics, and the relationship

existing between various levels and functional departments. This training

will help me in the future to undertake my assignments successfully.

Internship Report(TNEB)

Documents

Transcript of Internship Report(TNEB)