Browsing by Author "Abara, I E"

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    Design of a Low-Cost Controller for Smart Prepaid Meters
    (Department of Electrical Engineering, Ahmadu Bello University, Zaria, Nigeria., 2020-09-25) Zakariyya, Sikiru Olayinka; Abara, I E; Olayanju, Sunday Akinwale; Salami, A F; Sadiq, B O; Alao, R A
    This paper presents the design and implementation of a low-cost, low-complexity, energy-efficient controller with remote recharge and load shedding capability. The system is recharged remotely by an SMS sent to a registered SIM card in a GSM module, a voltage and current sensor measures the load power usage, a microcontroller is used to keep track of the power consumption and signals the relay in order to execute the load shedding when the predetermined threshold is reached. The whole system is powered by a power supply unit which converts the 220V AC from the supply mains to a 5V DC. After the design and upon testing, the energy measurement circuit worked with minimal error, the relay switch executed the load shedding function without delay, the GSM showed good network reception and the operation of the system was cheap and simple thus satisfying the objective of the research