ABSTRACT
A long flashover arrester (LFA), which comprises of three flashover modules using the creeping discharge effect, is described in this paper. In this design, the total arrester stressing voltage is applied simultaneously to all of the three modules so that the voltage-time characteristics of the arresters are improved. It assured reliable protection of medium voltage (e.g., 10kv) over head power line against both ....etc

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Line Arresters In Transmission Line
Jithin Lal K
S7 E2 RN:220
College Of Engineering, Trivandrum
2007-11 batch




CONTENTS
1)Introduction
2)TLA Components
3)Types of TLA
4)Working of TLA
5)Arresters Location
6)Problems in Applications of TLA
7)Transverse Discharge
8)Experiments
9)Impulse Voltage Waveforms
10) Results
11)Minimum Distance
12)Conclusion


INTRODUCTION
Transmission Line Arresters (TLA)
Any arrester that is applied on the lines of a power system t ....etc

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Please visit the below given threads for more details

http://seminarsprojects.net/Thread-lightning-protection-using-lfa-m--1428?pid=15977#pid15977
http://seminarsprojects.net/Thread-lightning-protection-using-lfa-m-seminars-report


Abstract
Overview With the development of national economy and the growing electricity demand, electricity production more and more prominent safety issues. For the transmission line in terms of, Lightning has been the impact of high tension power line reliability an important ....etc

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OVERVOLTAGE PROTECTION DEVICES

Technologies involved:
In the voltage switching category comes the Spark Gaps(SG) and Gas Discharge Tube(GDT) technology. In the Voltage limiting category comes the metal oxide varistor technology(MOV) and the siicon avalanche diode(SAD) technologies.
1)AIR TERMINATIONS
To protect the volume from direct lightning strikes
and to avoid uncontrolled strikes air termination are
used . Air termination is comprised by
air-termination rods and air-termination wires.
The location of air te ....etc

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A new simple, effective and inexpensive method for lightning protection of medium voltage overhead distribution line is using long flashover arresters (LFA). A new long flashover arrester model has been developed.
It is designated as LFA-M. It offers great number of technical and economical advantages. The important feature of this modular long flashover arrester (LFA-M) is that it can be applied for lightning protection of overhead distribution line against both induced overvoltages and direct lightning strokes.
The induced over voltages ca ....etc

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. INTRODUCTION

Outages of overhead power lines due to lightning strokes are one of the main causes of shortages of electric supplies and economic losses of power utilities. A previous study has concluded that widely separated pole-top arresters can effectively protect distribution line from induced-voltage flashovers. In order to prevent arc fusion of insulated conductors on distribution lines due to lightning flashovers it is recommended to install an arrester at every insulator. Millions of metal - oxide arresters are alr ....etc

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Qudusia Amatun Nayeem


Lightning, is a form of visible discharge of electricity between rain clouds or between a rain cloud and the earth. The electric discharge is seen in the form of a brilliant arc, sometimes several kilometres long, stretching between the discharge points. How thunderclouds become charged is not fully understood, but most thunderclouds are negatively charged at the base and positively charged at the top. However formed, the negative charge at the base of the cloud induces ....etc

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The aim of this study is to propose simple and reliable techniques to assess the condition of metal oxide arrester based on the dielectric response techniques. A number of modern electrical diagnostics for Metal Oxide Surge Arrester (MOSA) are discussed in this paper. The techniques included return voltage, decay voltage and polarisation/depolarisation current measurement. The single and multipulse current (8/20micros) was used to artificially degrade the MOSA. The before and after diagnostic r ....etc

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Implementation of Rural Electrification Scheme
RGGVY, in Uttar Pradesh

Abstract
Based on a survey of more than 2000 villages,
in this paper, an attempt has been made to point out the
defects and shortcomings in the high voltage distribution
system (HVDS) installations built under the Rajeev
Gandhi Gramin Vidyutikaran Yojana (RGGVY) of rural
electrification. Avoiding these could have made the
installations much better. Also, it could have been costeffective
and could have resulted in earlier completio ....etc

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to get information about the topic modern surge arresters full report ppt related topic refer the page link bellow

http://seminarsprojects.net/Thread-modern-electrical-metal-oxide-surge-arresters

http://seminarsprojects.net/Thread-modern-zinc-oxide-surge-arrester ....etc

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good afternoon sir please i want to know the advantage and how the installation of thunder arrestor is. ....etc

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to get information about the topic lightning protection using lfa using long flashover arresters full report ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-lightning-protection-using-lfa-m--1428

http://seminarsprojects.net/Thread-lightning-protection-using-lfa-m-seminars-report

http://seminarsprojects.net/Thread-lightning-protection-using-lfa-m-seminars-report?pid=52465

http://seminarsprojects.net/Thread-lightning-protection-using-lfa-m--1428?pid=15977

http://seminarsprojects.net/Thread-lig ....etc

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Line Arresters In Transmission Line
Jithin Lal K
S7 E2 RN:220
College Of Engineering, Trivandrum
2007-11 batch




CONTENTS
1)Introduction
2)TLA Components
3)Types of TLA
4)Working of TLA
5)Arresters Location
6)Problems in Applications of TLA
7)Transverse Discharge
8)Experiments
9)Impulse Voltage Waveforms
10) Results
11)Minimum Distance
12)Conclusion


INTRODUCTION
Transmission Line Arresters (TLA)
Any arrester that is applied on the lines of a power system t ....etc

[:=Read Full Message Here=:]

. INTRODUCTION

Outages of overhead power lines due to lightning strokes are one of the main causes of shortages of electric supplies and economic losses of power utilities. A previous study has concluded that widely separated pole-top arresters can effectively protect distribution line from induced-voltage flashovers. In order to prevent arc fusion of insulated conductors on distribution lines due to lightning flashovers it is recommended to install an arrester at every insulator. Millions of metal - oxide arresters are alr ....etc

[:=Read Full Message Here=:]

please go through the following thread for getting more information

http://seminarsprojects.net/Thread-modern-electrical-metal-oxide-surge-arresters ....etc

[:=Read Full Message Here=:]

ABSTRACT
A long flashover arrester (LFA), which comprises of three flashover modules using the creeping discharge effect, is described in this paper. In this design, the total arrester stressing voltage is applied simultaneously to all of the three modules so that the voltage-time characteristics of the arresters are improved. It assured reliable protection of medium voltage (e.g., 10kv) over head power line against both ....etc

[:=Read Full Message Here=:]