what is simulation of extra high voltage long transmission lines. ....etc

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The High frequency attenuation in shielded distribution cable has been extensively studied. But in the case of solid dielectric cable, this has not been done. A solid dielectric cable has a bit more complex structure including the semiconducting bedding layers and a moisture barrier.high frequency loss is created by these sources.The purpose of these bedding layers is to seal the cable against moisture ingress and also accomodate for the thermal expansion of the cable. The cables studied here are the ones with a corrugated copper sheath and ....etc

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ICING OF POWER TRANSMISSION lines during winter storms are a persistent problem that causes outages and costs millions of dollars in repair expenses. High-frequency excitation at approximately 8-200 kHz has been proposed as a method to melt ice. The method works by a combination of two mechanisms. At these frequencies, ice is a lossy dielectric, causing heating directly in the ice. In addition skin effect causes current to flow only in a thin layer on the surface of the line, causing resistive losses and consequent heating.In this article, w ....etc

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Abstract

This paper proposes a new soft-switched continuousconduction- mode (CCM) boost converter suitable for high-power applications such as power factor correction, hybrid electric vehicles, and fuel cell power conversion systems. The proposed converter achieves zero-voltage-switched (ZVS) turn-on of active switches in CCM and zero-current-switched turn-off of diodes leading to negligible reverse-recovery loss. The components voltage ratings and energy volumes of passive components of the proposed converter are greatly reduced c ....etc

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to get information about the topic high voltage direct current power transmission system with metallic return conductor full report ,ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-12-pulse-hvdc-trnsmission-system-by-using-igbt-values

http://seminarsprojects.net/Thread-hvdc-transmission-systems ....etc

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Abstract

This paper is focused on the development of the new principles and operational algorithms of the transmission lines distance protection. The proposed distance protection algorithms utilize statistical information about the undefined and random parameters and quantities such as equivalent impedances of the systems at the unmonitored end of the power transmission line and current and voltage phasor measurements errors. Knowledge about the distribution of these parameters and values results in more secure and dependable procedur ....etc

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TRANSMISSION OF DATA OVER ELECTRIC POWER LINES



INTRODUCTION

aims at the utilization of the electricity power lines for the transmission of data
gains importance that every building is connected to the power grid that cannot be matched by either the telecommunications or cable TV wiring
provides new services to the users, which are difficult to implement by other technologies, e.g., remote electricity meter reading, broadband over internet and many

RELEVANCE OF PLT[/ ....etc

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Detecting Power Grid Synchronization Failure

Tarun Agarwal
Synchronization means the minimization of difference in voltage, frequency and phase angle between the corresponding phases of the generator output and grid supply. An alternating current generator must be synchronized with the grid prior to connection. It can t deliver the power unless it is running at same frequency as the network. Synchronization must occur before connecting the generator to a grid. Synchronization can be achieved manually or automatically. The purpose of synchr ....etc

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To get full information or details of power theft identification system in distribution lines using differential power measurement please have a look on the pages

http://seminarsprojects.net/Thread-power-theft-identification-with-maintaining-maximum-demand-using-gsm-tehnology?pid=15708&mode=threaded

if you again feel trouble on power theft identification system in distribution lines using differential power measurement please reply in that page and ask specific fields ....etc

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Application of active power sensitivity to frequency and voltage variations on load shedding
Presented by
Ejas Kunhalan P.E.
S7 E1
College Of Engineering, Trivandrum
2007-11 batch



Overview:
Objectives

Continued

Introduction

Frequency and voltage measurement techniques

Active power sensitivity to frequency and voltage variations

Testing

Conclusions

Future works

OBJECTIVES
A unique load shedding scheme that combines frequency, voltage, rate of cha ....etc

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