microprocessor-based relays of ac motors



INTRODUCTION

Microprocessor-based distribution relays contribute to improved reliability and reduced costs on electric power systems. Microprocessor-based relays, also called digital relays, have a proven track record of reliability, with over 100,000 relay-years of field experience. Microprocessor based relays provide technical improvements and cost savings in several ways:

The relays use programmable logic to reduce and simplify ....etc

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INTRODUCTION
Protective relaying is an integral part of any electrical power system. The fundamental objective of system protection is to quickly isolate a problem so that the unaffected portions of the system can continue to function. The flip side of this objective is that the protection system should not interrupt power for acceptable operating conditions, including tolerable transients.
The choice of protection depends upon several aspects such as type, rating of the protected equipment, its important lo ....etc

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PROTECTIVE COATINGS FOR CONCRETE BRIDGES

Protection of structures is very important for increasing the life of the structure. There is a growing national concern about premature deterioration of our concrete infrastructure projects such as bridges, aqueducts etc. requiring early repair and/or replacement. Use of protective coatings will increase the durability and hence the life of these structures. As most of these structures are made up of concrete and steel, the role that coatings play in protecting the surfa ....etc

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ANN What does it mean?
The complex neural structure inside the human brain forms a massive parallel
information system ,the basic processing unit is the NEURON. This contrasts with
conventional computers in which a single processor executes a series of instructions
Neuro - Computing is something called the brain-like computations.
It is composed of a large number of highly interconnected processing
elements (neurons) working in unison to solve specific problems.
From a mathematical point of vie ....etc

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