DESIGNAND DEVELOPMENT OF EQUIPMENT PROTECTOR FROM MAINS POWER INTERRUPTIONS

The objective of this projectwas to design and develop a protection device that would
protect electrical equipment from main power disturbances. Most of industrial and
household equipment require a supply of electricity for their operation. It is therefore
important to take measures to prevent power quality disturbances and interruptions
that may affect the operation of anyequipment. Mains power disturbances may cause
inefficient operation of electrical equipment and damage to them. The methodology
of this project includes literature survey, design, construction of prototype model,
performance parameters measurements and documentation of development progress.
Literature survey was done to learn different types of electrical disturbances, their
consequences, as well as the existing protection devices used in preventing the effects
of these disturbances on electrical equipment. The designed device is to be used
specifically for the protection of household electrical equipment from under and over
voltage as well as frequent mains power interruptions. This protection device will
disconnect household electrical equipment from mains power during the occurrence
of under and over voltage, as well as frequent mains power interruptions. This device
was put to test under different electrical conditions such as changes in voltage,
frequency, load etc. The device shows that it can operate satisfactory under the
parameters tested.