Exam Details

Subject Electrical Power Transmission and Distribution
Paper
Exam / Course Diploma -VIEP-Electrical Engineering (DELVI)/Advanced Level Certificate Course In Electrical Engineering (ACELVI)
Department School of Engineering & Technology (SOET)
Organization indira gandhi national open university
Position
Exam Date June, 2016
City, State new delhi,


Question Paper

No. of Printed Pages: 4 IBIEE-034I
DIPLOMA IN ELECTRICAL ENGINEERING (DELVI)
Term-End Examination 00486
June, 2016
BIEE-034 ELECTRICAL POWER TRANSMISSION AND DISTRIBUTION
Time: 2 hours Maximum Marks: 70
Note: Attempt any five questions. Question no. 1 is compulsory. Use of scientific calculator is allowed.

1. Attempt the following objective type questions: 7x2=14

Transmission efficiency increases as

voltage and power factor both increase

voltage and power factor both decrease

voltage increases but power factor decreases

voltage decreases but power factor increases

Corona effect can be detected by

Hissing sound

Bluish glow around the conductor

Odour of ozone formation

All of the above

Which of the following is not a form of tariff?

Two part tariff

Power factor tariff

Six part tariff

Flat rate tariff

Bedding and serving term is associated with

transformer

circuit breaker

underground cable

ACSR conductor

In a short transmission line, which is not true?

Inductance is neglected

Resistance is neglected

Capacitance is neglected

All of the above

Pole mounted distribution 11/0.4 kV transformer is usually connected in

(i) Delta Star

Delta Delta

Star Delta

Star Star

Which of the following is not a type of earthing?

Flat earthing

Pipe earthing

Plate earthing

None of the above

2. Compare the single-phase with the .three-phase system. 7

Discuss the effect of wind and ice on sag in brief with the help of a diagram and expressions. 7

3. With the help of a neat cross-sectional view of an underground cable, explain the various sections of a cable. 7

Write an estimate of a 11 kV/440 V pole mounted substation. 7

4. What are the various faults that occur in an overhead and underground distribution line? Which is the most common fault? 6+1

Discuss the causes and disadvantages of low power factor. What are the methods of improvement of power factor? 7

5. What is earthing? State the various types of earthing and explain anyone type of earthing with the help of a neat sketch.

The annual consumption of an undertaking is 5 x 10^6 kWh with a maximum demand of 1500 kW. Calculate the annual cost of energy, if tariff is a flat rate of Rs 4.70/kWh. 7

6. Write short notes on any four of the following: 4x3 1/2=14

HVDC transmission line

Regulation of short transmission line

LT distributor

Stringing of transmission line

Layout of 33/11 kV distribution substation


Departments

  • Centre for Corporate Education, Training & Consultancy (CCETC)
  • Centre for Corporate Education, Training & Consultancy (CCETC)
  • National Centre for Disability Studies (NCDS)
  • School of Agriculture (SOA)
  • School of Computer and Information Sciences (SOCIS)
  • School of Continuing Education (SOCE)
  • School of Education (SOE)
  • School of Engineering & Technology (SOET)
  • School of Extension and Development Studies (SOEDS)
  • School of Foreign Languages (SOFL)
  • School of Gender Development Studies(SOGDS)
  • School of Health Science (SOHS)
  • School of Humanities (SOH)
  • School of Interdisciplinary and Trans-Disciplinary Studies (SOITDS)
  • School of Journalism and New Media Studies (SOJNMS)
  • School of Law (SOL)
  • School of Management Studies (SOMS)
  • School of Performing Arts and Visual Arts (SOPVA)
  • School of Performing Arts and Visual Arts(SOPVA)
  • School of Sciences (SOS)
  • School of Social Sciences (SOSS)
  • School of Social Work (SOSW)
  • School of Tourism & Hospitality Service Sectoral SOMS (SOTHSM)
  • School of Tourism &Hospitality Service Sectoral SOMS (SOTHSSM)
  • School of Translation Studies and Training (SOTST)
  • School of Vocational Education and Training (SOVET)
  • Staff Training & Research in Distance Education (STRIDE)

Subjects

  • Basics of Electrical Engineering
  • C - Programming
  • Computer Applications In P.S.
  • Control Systems
  • Digital Control System
  • Digital Control System Design
  • Dynamics System Simulation
  • Electrical Circuit Theory
  • Electrical Engineering Material
  • Electrical Installation and System
  • Electrical Machine Theory  II
  • Electrical Machines-I
  • Electrical Measurements And Instruments
  • Electrical Power Transmission and Distribution
  • Energy Audit
  • Flexible Ac Transmission System
  • Industrial Drives and Controls
  • Mechatronics
  • Power Generation System
  • Power Plant Economics And Centering
  • Power System Reliability
  • Principles of Computer Architecture
  • Special Electrical Machines
  • Switchgear And Protection
  • Utilization Of Electrical Engineering