dc.description.abstract |
One of the problems faced by PLN electricity users is the instability of electricity that can cause damage to electrical equipment and its function is not optimal. The solution to solve this problem is to install a voltage stabilizer that can regulate the voltage to remain stable. There are many disadvantages to analog voltage stabilizers (AVR) that exist today, for example inaccurate and fluctuating voltages when there is a change in voltage and a short maintenance life due to continuous use of the tool. The solution chosen to solve this problem is to build a digital AVR, digital AVR is a voltage control system based on digital circuits that uses a microcontroller as a voltage data processor. AVR works based on a slide transformer, which is a transformer that can adjust the number of induced turns so that the voltage can go up or down. The designed AVR can regulate the input voltage from 170V to 250V to a constant 220V. The voltage sensor provides voltage information to the microcontroller to be compared, if the voltage is below 220V the microcontroller will shift the slide so that it rises to 220V, while if the voltage is above 220V the microcontroller will slide the slide back down to 220V. Arrangements are carried out smoothly with regular motor movements so that there is no voltage fluctuation in the load. After the voltage reaches 220V and is stable, the motor will be rested to maintain motor durability. Each voltage reading, namely input and output, will be displayed on the LCD display so that the existing voltage can be monitored. | en_US |