Engineering 3 PHASE ELECTRICAL NETWORK PROTECTION SYSTEM WITH OVER UNDER VOLTAGE RELAY AND THERMAL OVER LOAD RELAY IN REAL TIME BASED ON RESPBERRY PI

Abstract

At this time the largest electricity consumer is in the industrial sector, because in general the industry requires a lot of electricity supply as the main source in its operations and therefore all existing equipment in the industrial sector must be protected especially by over/under voltage disturbances and also Overcurrent. This can damage existing equipment in the industry, one of which is an electric motor that is connected to a 3-phase electric grid. voltage relay and thermal over load relay in real time based on Resoberry pi. To meet this need, this protection device uses a respeberry pi and Arduino mega 2560 as data processors, for voltage sensors using ZMPT101B and current sensors using ACS712 the detected voltage
and current values will processed by Aduino mega 2 560 and the data read will be sent to the Raspberry pi to be displayed and if there is a voltage spike or drop in voltage or current then the input voltage to the load will automatically be cut off, the termination uses a contactor connected to a relay. This design also uses a monitor to display detected voltage value.

Keywords: Respeberry pi,Arduino Mega 2560, Sensor Tegangan ZMPT101B, Monitor,Sensor Arus ACS 712.