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Design And Construction Of An Automatic Single Phase Changeover Switch
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Automatic
changeover switch (also known as automatic transfer switch ATS) is an
integral part of a power generation process, allowing smooth and
immediate transfer of electric current between multiple sources and
load. When the generator is in operation, the transfer switch prevents
any feedback current to the load. It also ensures that the different
power sources are synchronized before the load is transferred to them.
The transfer switch senses when there is interruption if the mains
supply remains absent. Fluctuations and voltage drop below a particular
level within a specified time in the mains supply will also cause the
automatic transfer switch to transfer the load to the generator. The
starting of the generator is done by a relay which switches the battery
voltage to the ignition coil of the generator. In about a few seconds
when the generator is producing full power, the transfer switch
disconnects the load from the mains supply and connects it to the
generator supply, restoring electricity to the load. The transfer switch
continues to monitor the mains supply and when it is restored, it
switches the load from the generator back to the mains supply. Once the
generator is disconnected, it goes through a cool down routine and shuts
down automatically.(2)
1.1 PROJECT AIMS AND OBJECTIVES
The aims and objectives of this project is to
1.
Design and construction of an automatic changeover switch that will
switch load from the mains power supply (PHCN supply) to a back-up power
supply (generator) with simplicity.
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ABSRACT - [ Total Page(s): 1 ]The main aim of any electric power supply in the world is to provide uninterrupted power supply at all times to all its consumers. Although, in developing countries, the electric power generated to meet the demands of the growing consumers of electricity is insufficient, hence power instability and outage.Power instability or outage in general does not promote development in the public and private sector. The investors do not feel secure to come into a country with constant or frequent power fai ... Continue reading---
