#undervolt
The main target of this project is to design and develop a Smart Overvoltage and Undervoltage
Protection System Using Arduino to protect the appliance from damage. Nowadays uctuation
in AC mains voltage is frequent in domestic houses and industries. The abnormal over and under voltages may be caused by some reasons such as sudden interruption of heavy load, thunder lightning, switching impulses etc. It can easily damage sensitive electronic parts in these conditions. It is so preferable to have a tripping system such as MCB, or MCCB to protect the appliances.
But we have built an advanced system here that can smartly control your whole house’s electric
supply using the user’s choice. Yes, we can set our desired maximum and minimum voltage for
our needs.
In today’s market, various types of smart Overvoltage and Undervoltage protection systems
have come out. But these are a little bit costly. Our project aims at protecting the electrical equipment from over and under voltages using just an Arduino and voltage sensor at a low cost. Here we use the ZMPT101B voltage sensor which is more accurate than others also it is cost-eective. It detects any voltage greater than 230V AC and below 190V AC (predened value). If the voltage is across the limits than the predened values, it sends a signal to the Arduino. Then it immediately trips the circuit breaker (here the relay module). Then the circuit breaker isolates the load from the main source.
In today’s power system, voltage quality is an important factor with the growth in power electronics and the high sensitivity of electronic components. Voltage quality covers a wide range of voltage disturbances and uctuations in voltage magnitude or waveform from the maximum values. Daily operation of the power grid may result in disruption of voltage quality. Also, voltage irregularities are the major issues in the industries and domestic users are facing and often damage sensitive electronic equipment.
Components Required
Arduino Nano
ZMPT101B Voltage Sensor
16×2 LCD Display
I2C Module
5V Relay Module
5V AC-DC Converter
Veroboard
Wires
Source : https://circuitdiagrams.in/overvoltag...
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