@thesis{thesis, author={Amirul Rezza}, title ={Monitoring Over Under Voltage Generator Pada Perubahan Beban}, year={2021}, url={http://eprints.polbeng.ac.id/1696/}, abstract={Abstract ? In this study, the author designed a monitoring system for Over/Under voltage Generator on load changes. The quality of electric power in an electrical circuit system is very necessary. Poor quality power supply can cause interference and even damage the equipment system or electrical circuit. One form of interference is the occurrence of under/over voltage. To overcome this, a protective device is needed that can detect under/over voltage disturbances and secure electrical equipment. Under/over voltage relays are designed to detect under/over voltage disturbances at single-phase and 3-phase voltages of 220 V 50 Hz. The voltage limit for under- voltage disturbance is -5% of the normal voltage of 220 V, while over-voltage disturbance is +5% of the normal voltage. And the delay setting for under/over voltage relay is 5 seconds. The output of the relay is connected to the load, the load will be cut off in the event of an Over/Under voltage disturbance.} }