pt means Potential Transformer,ct means Current Transformer

Optical current and voltage sensors are an alternative to conventional iron-core instrument transformers (pt and ct commonly using in measuring instruments) ,and Optical current and voltage sensors having advantages include improved accuracy over a broader dynamic range, wider band-width, zero risk of explosive failure and lighter weight.

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With the increasing demand for electric power, the economics of power transmission requires the use of high transmission line voltages. This leads to escalation of cost for conventional CTs and PTs.This paper provides an economical alternative, for the use of CTs and PTs for the measurement of current and voltage. The method is an optical method using lasers. The method employs two types of devices; free path and enclosed path devices. The basic principle of the optical method is based upon magneto-optic effect, electro optic effect and the ele ....etc

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BEHAVIOUR OF REINFORCED CONCRETE BEAMS COCONUT SHELL AS COARSE AGGREGATES. ....etc

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STUDIES ON ECONOMICAL CONFIGURATION OF RCC AND PRESTRESSED SHELL ROOFS

Presented by
R.Gopi

Under the guidance of Dr.N.Arunachalam.,B.E(Hons.,), MSc(Engg.,),Ph.D Dean of Civil Engg,
Bannari Amman Institute of Technology


AIM s

1. To identify the configuration of different directrices of Prestressed cylindrical shell roofs that will result in the least cost for a given load and span.
2. To identify the configuration of different directrices of RC Conoidal shell roofs that will result in th ....etc

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To get full information or details of prestressed concrete bridge structures please have a look on the pages

http://seminarsprojects.net/Thread-advantages-of-prestressed-concrete-bridges

if you again feel trouble on prestressed concrete bridge structures please reply in that page and ask specific fields in prestressed concrete bridge structures ....etc

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to get information about the topic economical and enovative building construction full report ppt and related topic refer the page link bellow
http://seminarsprojects.net/Thread-civil-engineering-seminars-topic

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a study on performance of coconut shell concrete with silica fume ....etc

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To get full information or details of economical alternative please have a look on the pages

http://seminarsprojects.net/Thread-economical-alternative-for-cts-and-pts

http://seminarsprojects.net/Thread-economical-alternatives-for-cts-and-pts?pid=9578&mode=threaded

if you again feel trouble on economical alternative please reply in that page and ask specific fields in economical alternative ....etc

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Behavior of instrumented prestressed high performance concrete bridge girders
A comprehensive monitoring of the behavior of four prestressed high performance concrete (HPC) bridge
girders, with higher compressive strength, during construction and while in-service, is discussed in this article. The instrumentation and monitoring of a group of four girders during the process of casting operation, after construction and under the conditions and influences of traffic and thermal loads, as well as under controlled load conditions is done.Th ....etc

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