Power system protection plays a crucial role in maintaining the reliability and security of electricity distribution. This study discusses the analysis of coordination between overcurrent relays (OCR) and ground fault relays (GFR) on the Miwon Substation power line. The study aims to determine the optimal setting values ??for OCR and GFR, so that they can detect and disconnect short circuit faults quickly and accurately. The approach used includes theoretical calculations and simulations to evaluate relay performance under various fault conditions. The results of the study reveal that with appropriate settings, the relay can operate selectively and efficiently, reducing the impact of disturbances and maintaining the stability of the power system.

This community service activity is aimed at helping women's farmer groups in Mulyorejo Village, Malang, in developing automatic watering technology based on renewable energy for water spinach cultivation. The system developed uses solar panels as an energy source, which drives the automatic watering machine. This technology is expected to increase irrigation efficiency, reduce dependence on human labor, and increase the productivity of water spinach plants. The results of the activity show that the use of this automatic watering machine can reduce operational costs and improve plant quality.