Development of Household Power Quality Monitoring System

Information on the parameter of power system supply is vital to the utilities and the consumers of electricity particularly in the deregulated power industry where competition is key. This paper presents the development of household power quality monitoring system. The quality and quantity of power consumption by a consumer on real time is displayed and stored for future reference, whenever the quality of power is compromised the supply to the end user is interrupted and an alarm is raised at the end user side. This was achieved by using a voltage sensor, current sensor and operational amplifier to measure required fundamental quantities while the derived quantities are determined by micro-controller programmed in C language which displays and store the reading obtained at intervals, also a buzzer and relay was interfaced with the micro-controller to raise alarm and cut-off epileptic power supply. With this project, household equipment and sensitive devices can be operated without the risk of been damaged; also record of power parameters measured can be obtained from the storage unit for further references and data modeling.