ABSTRACT
A UPS system is a DC to AC conversion system of 1KVA power rating and expected to carry around 800 watts load. It provides power to electronic and electrical appliances such as radio sets, TV DVD/VCD, computers, fans and lighting. The design was conceived and put down as block diagram. Corresponding circuit diagrams for each black box were sourced and drawn. The component values according to desired specifications were designed from the first principle and needed values derived. The transformer was also designed and with measurements and component values we went to the market. Most of the transistors were not in the market and order was made with the trader and they were later collected. These components were first wired on project board, tested before being removed and transferred to veroboard where they were soldered permanently and tested. The tests carried out were successfully including the capacity of the transformer and the transformer stability and hum-free operation. The circuit veroboard and transformer along with meters, switches, indicators and output sucket were all carefully packaged inside the system box and test carried out again. This financial test was also successful.
ABSTRACT
This study was carried out to evaluate the concentrations of heavy metals and other contaminants in the effluents from some food...
ABSTRACT
Housing is a basic need of every human being just as food and clothing. Density simply refers to how much of a particular object...
ABSTRACT
Developing countries like Nigeria are faced with increased in generation of domestic, industrial and agricultural wastes that fo...
ABSTRACT
The broad objective of this study focused on the design and implementation of software for automobile insurance...
BACKGROUND OF THE STUDY
The availability of sufficient financing is one of the most important fa...
Background of the Study
Menstrual hygiene management is described as the process whereby “women a...
ABSTRACT
In the world today, the use of power supply in electroni...
ABSTRACT
This study examined government expenditure and Nigeria’s economic growth within the samp...
BACKGROUND TO THE STUDY
Marriage is a global institution that is recognized and revered in a variety of jurisdictions, e...
Abstract
Today in Nigeria, Social Networking Sites like Facebook, 2go and WhatsApp are getting more popular among st...