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 | December, 2015 | |
| City, State | new delhi, |
Question Paper
1. Attempt the following objective type questions:
Which of the following is not a transmission voltage in India
66 kV
132 kV
264 kV
400 kV
Alternating current power is transmitted at high voltage to
Safeguard against pilferage
Minimise transmission losses
Reduce cost of generation
Make system reliable
Out of the following distribution systems, which system offers best economy?
Direct current system
AC single-phase system
AC three-phase 3-wire system
AC three-phase 4-wire system
Isolators are used to disconnect a circuit when
the line is on full load
the line is energised
the circuit breaker is not open
there is no current in the line
The sag of a transmission line is least affected by the
self-weight of conductor
temperature of surrounding air
current through conductor
ice deposited on conductor
The service mains connects
distributor and consumer terminal
distributor and transformer
distributor and relay system
transformer and earth
Boosters are basically
inductors
capacitors
transformers
synchronous motors
Discuss the effect of increase of voltage on the weight of conductor, efficiency of line and line drop.
Enumerate various types of supports used in a transmission line and explain in brief anyone of them with the help of a neat sketch.
Give the Indian Electricity Rules pertaining to clearance in case of transmission system.
What is corona? How can corona loss be reduced?
Draw and explain the layout of an LT distribution system.
What are the different methods of cable laying? Explain anyone in brief.
A single-phase 2-wire distributor, 2000 metres long, supplies a load of 120 A at 0·8 p.f. lagging at its far end and a load of 80 A at 0.9 p.f. lagging at its mid end. Both power factors referred to voltages at far end. The resistance and reactance are 0·05 ohm and 0·1 ohm respectively. If the voltage at the far end is maintained at 230 volts, calculate
load current at and
impedance of sections AC and CB.
<img src='./qimages/13265-5a.jpg'>
Enumerate the various apparatus and protective devices used in a 220/132 kV outdoor power substation.
6. Write short notes on any four of the following:
Types of tariffs
Maintenance schedule of distribution lines
Estimation of 11 kV/440 V pole mounted substation
Disadvantage of low power factor
Methods of earthing
Which of the following is not a transmission voltage in India
66 kV
132 kV
264 kV
400 kV
Alternating current power is transmitted at high voltage to
Safeguard against pilferage
Minimise transmission losses
Reduce cost of generation
Make system reliable
Out of the following distribution systems, which system offers best economy?
Direct current system
AC single-phase system
AC three-phase 3-wire system
AC three-phase 4-wire system
Isolators are used to disconnect a circuit when
the line is on full load
the line is energised
the circuit breaker is not open
there is no current in the line
The sag of a transmission line is least affected by the
self-weight of conductor
temperature of surrounding air
current through conductor
ice deposited on conductor
The service mains connects
distributor and consumer terminal
distributor and transformer
distributor and relay system
transformer and earth
Boosters are basically
inductors
capacitors
transformers
synchronous motors
Discuss the effect of increase of voltage on the weight of conductor, efficiency of line and line drop.
Enumerate various types of supports used in a transmission line and explain in brief anyone of them with the help of a neat sketch.
Give the Indian Electricity Rules pertaining to clearance in case of transmission system.
What is corona? How can corona loss be reduced?
Draw and explain the layout of an LT distribution system.
What are the different methods of cable laying? Explain anyone in brief.
A single-phase 2-wire distributor, 2000 metres long, supplies a load of 120 A at 0·8 p.f. lagging at its far end and a load of 80 A at 0.9 p.f. lagging at its mid end. Both power factors referred to voltages at far end. The resistance and reactance are 0·05 ohm and 0·1 ohm respectively. If the voltage at the far end is maintained at 230 volts, calculate
load current at and
impedance of sections AC and CB.
<img src='./qimages/13265-5a.jpg'>
Enumerate the various apparatus and protective devices used in a 220/132 kV outdoor power substation.
6. Write short notes on any four of the following:
Types of tariffs
Maintenance schedule of distribution lines
Estimation of 11 kV/440 V pole mounted substation
Disadvantage of low power factor
Methods of earthing
Other Question Papers
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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
- E l e c t r i c a l M a c h i n e T h e o r y I I
- 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