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četvrtak, 26.09.2013.

Electrical systems

Electrical systems are of great importance for the development of the country, because, this is made or designed in terms of populations and installed basic industries, which consume a lot of electricity and therefore require an electrical system adequate and efficient.
Currently the electrical load has increased exponentially, the system has not adapted to these changes effectively, if not, they have sought fast and economical solutions, which has been the implementation of generators close to load centers for these provide energy to the system at peak load.

For implementation of the generator curent is necessary to take into account certain conditions for protection, in order to prevent damage at the time of the occurrence of faults.
Is very important to protect generators since these machines are the main electrical systems so that a failure in them cannot be separated simply without affecting the system in general. It is also the most expensive element of the system considering both the cost of acquisition, how the cost of operating any output leads therefore must be protected more widely than any other system equipment.
He presented the various protections that must be implemented to generators so that they comply with the basic features.
By implementing these protections you get a more reliable system and in turn a good support for faults, ie, a more stable system to failures.

Protection of electrical systems

Electrical systems are constantly affected by many factors, both internal and external to the system to it. It is at this point that come into play various devices that make up a system to protect equipment, reliability and continuity of service and ensure even more safety.
The protections of an electrical system are vital components that must always be present in the design of electrical systems and power systems even such as generators.

These systems generally operate at the time a fault occurs, sending a signal through a transducer to a relay, at the same time kicks in a switch circuit and so the fault is cleared. By fails the voltage and current levels are usually very high moment where the transducer works by decreasing these levels.

This action sequence is done in seconds to prevent further damage.
We can also mention that among the basic equipment that are classified as protection systems are fuses, thermal magnetic switches, electromagnetic switches, protective relays, instrument transformers (transducers) and solid state switches.
Electrical protection systems are responsible by using different teams that work together to recognize, identify and clear a fault.
Protections systems generator are formed by a great diversity of relays that ultimately react when altering nominal conditions of an electric circuit.

Oznake: power, electrical, safety, generators

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