A Technical Report On Student Industrial Work Experience Scheme At The Transmission Company Of Nigeria

ABSTRACT

This report gives details on the information on SIWES. This report outlines the schedule adopted during the course of the industrial training, the detailed description about the sub-station. It reviews on outdoor high voltage A.C circuit breakers, the various types of outdoor circuit breaker, and the rated characteristics. This takes you through safety, the personal protection equipment (PPE).

This report also gives the basic duties carried out as a maintenance Engineer; the routine inspections carried out by lines department. It also discuss on the maintenance carried out on 330/132kv   and 132/ 33kv SF₆ gas circuit breakers, the filling/topping of SF₆ gas into 132/ 33kv circuit breakers, leakage checks on 132/33kv SF₆  gas circuit breakers. This report discuss on various transformer test, the routine battery bank maintenance, also topping of transformer oil, tap-changing on power transformer.

TABLE OF CONTENTS

Contents

DEDICATION.. i

ACKNOWLEDGEMENT. ii

ABSTRACT. iv

TABLE OF CONTENT. v

CHAPTER ONE.. 1

1.0    INTRODUCTION.. 1

1.1    OVERVIEW OF SIWES. 1

1.2    OBJECTIVES OF SIWES. 2

1.3     ORGANISATION AND OPERATION OF SIWES. 3

1.4    AIM OF SIWES. 5

1.5    DURATION OF SIWES. 5

CHAPTER TWO.. 6

2.0    BACKGROUND OF THE NIGERIAN POWER SECTOR.. 6

2.1   POWER SUPPLY SYSTEM IN NIGERIA.. 6

2.1.1 ELECTRICITY GENERATION.. 6

2.1.2 ELECTRICITY TRANSMISSION.. 7

2.1.3 ELECTRICITY DISTRIBUTION AND UTILIZATION.. 8

2.2    TRANSMISSION COMPANY OF NIGERIA (TCN) 9

2.2.1   BRIEF HISTORY OF TRANSMISSION COMPANY OF NIGERIA.. 9

2.2.2 VISION AND MISSION.. 10

2.2.3   SCOPE OF ACTIVITIES. 10

2.3    TRANSMISSION COMPANY OF NIGERIA, AKANGBA WORK CENTRE   11

2.4   LAYOUT OF TCN AKANGBA SUB REGION.. 13

2.5      ORGANIZATIONAL STRUCTURE/CHART.. 16

2.5.1 OCCUPATIONAL HEALTH AND SAFETY DEPARTMENT. 17

2.5.2 ADMINISTRATIVE  DEPARTMENT. 17

2.5.3 ACCOUNTING  DEPARTMENT: 18

2.5.4 PROTECTION CONTROL AND METERING DEPARTMENT (PC&M):…………………………………………………………………………18

2.5.5 ELECTRICAL MAINTENANCE DEPARTMENT (EMD): 18

2.5.6 LINES MAINTENANCE DEPARTMENT: 19

2.5.7 SYSTEM OPERATIONS DEPARTMENT: 19

2.5.8 COMMUNICATION DEPARTMENT: 19

2.6    ORGANOGRAM OF TRANSMISSION COMPANY OF NIGERIA, AKANGBA SUBREGION.. 20

CHAPTER THREE.. 22

3.0    WORK DONE AND EXPERIENCE GAINED.. 22

3.0.1 INTRODUCTION.. 22

3.1    OCCUPATIONAL HEALTH & SAFETY DEPARTMENT.. 23

3.1.1 SAFETY PLAN.. 23

3.1.3 SAFETY MATERIALS. 24

3.2.0 PROTECTION, CONTROL AND METERING DEPARTMENT (PC&M)…………………………………………………………………………26

3.2.1 WORK DONE AND EXPERIENCE GAINED IN PC&M.. 26

3.2.1.0  TEST ON TRANSFORMERS. 27

3.2.1.1   INSULATION RESISTANCE TEST. 29

3.2.1.2   SHORT CIRCUIT TEST. 30

3.2.1.3   CORE BALANCE TEST. 31

3.2.1.4   TRANSFORMER TURNS RATIO TEST. 32

3.2.2 INSTALLATION OF SULPHUR HEXAFLUORIDE (SF6) GAS CIRCUIT BREAKER   33

3.2.2.1 OPERATING PRINCIPLE OF A CIRCUIT BREAKER.. 34

3.3.0 ELECTRICAL MAINTENANCE DEPARTMENT (EMD) 37

3.3.1    WORK DONE AND EXPERIENCE GAINED IN E.M.D.. 37

3.4    LINES MAINTENANCE DEPARTMENT (LMD) 40

3.4.1   WORK DONE AND EXPERIENCE GAINED IN L.M.D.. 40

3.4.1.0      TOWERS. 41

CHAPTER FOUR.. 45

CONCLUSION AND RECOMMENDATION.. 45

4.1   CONCLUSION.. 45

4.2   RECOMMENDATION.. 45

REFERENCES. 47

CHAPTER ONE

1.0     INTRODUCTION

1.1     OVERVIEW OF SIWES

SIWES (Student Industrial Work Experience Scheme) was established by the Federal Republic of Nigeria in the year 1973 to cater for the problem of underdevelopment and skill acquisition and also to impact practical knowledge and skills to students, thus bridging the gap between theoretical knowledge and practical.

The Scheme exposes students to industry based skills necessary for a smooth transition from the classroom to the world of work. It affords students of tertiary institutions the opportunity of being familiarized and exposed to the needed experience in handling machinery and equipment which are usually not available in the educational institutions.

The major reason behind the embankment of students in SIWES was to expose them to industrial environment and enable them develop occupational competence so that they can readily contribute their quota to national economic and technological development after graduation. Beside the practical knowledge acquired, it introduces the student to the rules and regulations, principles and etiquette of the environment grading their various disciplines and capacities.

The Student Industrial working Experience Scheme is the accepted skill training program, which form part of the approved minimum academic standard in the various degree programs, for all Nigeria Universities. So the scheme affords the students the opportunity of familiarizing and exposing them to the needed experience in handling equipment and machinery which are usually not available in the institutions related to their course of study

The 400 level Industrial attachment is aimed at exposing the student to hands on practical aspect of various lessons that has been taught in class and to provide other practical training relevant to the field of engineering and general development. This report focuses on the experience gained at the Transmission Company of Nigeria (TCN), Akangba sub-region, Surulere, Lagos.

1.2     OBJECTIVES OF SIWES

The Industrial Training Fund’s Policy Document No. 1 of 1973 which established SIWES outlined the objectives of the scheme. The objectives are to:

 

• Prepare students for industrial work situations that they are likely to meet after graduation.
• Make the transition from school to the world of work easier and enhance student’s contacts for later job placements.
• Provide an avenue for students in institutions of higher learning to acquire industrial skills and experience during their courses of study.
• Expose students to work methods and techniques in handling equipment and machinery that may not be available in their institutions.
• Provide students with an opportunity to apply their knowledge in real work situation thereby bridging the gap between theory and practice.
• Enlist and strengthen employers, involvement in the entire educational process and prepare students for employment in Industry and Commerce.
• Provide students the opportunity to develop attitudes conducive to effective interpersonal relationships.
• Provide students the opportunity to understand informal organizational SIWES interrelationships.
• Students will be able to outline at least five specific goals with several staff members by comparing performance with job duties and develop a draft plan with staff to accomplish performance needs, supervision plan and rewards.
• It will be able to develop a draft agency or project budget and will be able to identify methods of obtaining revenue to support the budget.
• Provide tools to use in prioritizing tasks of an assigned project and create with staff a tentative schedule for completion based on these tasks.

 

1.3          ORGANISATION AND OPERATION OF SIWES

• Operators – The ITF (which was itself established in 1971 by Degree 47), the coordinating agencies (NUC, NCCE, NBTE), Industry/Employers (NECA, NACCIMA, MAN) and the institutions.
• Funding – The Federal Government [Federal Ministry of Industry, Trade & Investment (FMIT&I)] of Nigeria.
• Beneficiaries – Undergraduate students of the following: Agriculture, Engineering, Technology, Environmental, Science, Education, Medical Science and Pure and Applied Sciences.
• Duration – Four months for Polytechnics and Colleges of Education, and Six months for the Universities.
• SIWES is operated as a joint venture through the contributory activities of stakeholders identified above and as shown in Figures below:

Figure (1a): Relative Distance of Stake holders SIWES Implementation/Skills

Acquisition by Students

 

Key to Figure 1a

• G:        Federal Government
• FMIT&I: Federal Ministry of Industry, Trade & Investment
• ITF: Industrial Training Fund
• SA: Supervising Agency
• OPS: Organized Private Sector
• E: Employers
• I:             Institutions
• S: Student Trainees

 

The relative involvement of each stakeholder in the actual implementation of SIWES is depicted by the distance of the stakeholder from the centre of the circle in Figure 1a.

 

 1.4    AIM OF SIWES

• To bridge the gap the between the theoretical knowledge and practical skills in order to produce result in form of goods and services.

THE SUPERVISORY AGENCIES (NUC, NBTE AND NCCE)

• Ensure the establishment and accreditation of SIWES units in institutions under their jurisdictions.
• Direct for the appointment of full-time SIWES coordinator.
• Ensures adequate functioning of the SIWES units in all institutions

1.5     DURATION OF SIWES

The duration of the program lasted for six months. I started the work with Transmission Company of Nigeria (TCN) AKANGBA SUBREGION on the 13^th day of June, 2016. The schedule of my attachment is stated below within the space of 26 weeks of industrial attachment.

DEPARTMENT	PERIOD OF STAY
HEALTH SAFETY AND ENVIRONMENT	13/06/2016 – 17/06/2016
PROTECTION, CONTROL & METERING	18/06/2016 – 30/07/2016
ELECTRICAL MAINTENANCE DEPT.	01/08/2016 – 30/09/2016
LINES	01/010/2016 – 11/11/2016

 

Fig. 1b: Breakdown of SIWES duration.

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