Dalam mengurangi lonjakan arus pada motor induksi 3 phasa dapat dilakukan dengan menganalisis penggunaan star delta motor induksi 3 phasa, menganalisis hasil perhitungan penghematan daya starting motor induksi 3 phasa, dan mengidentifikasi total penghematan daya dan seberapa besar setelah diterapkan starting motor induksi 3 phasa yang lebih ekonomis. Metode pada penelitian ini yaitu kuantitatif deskriptif yang mana mengukur arus lonjakan DOL dan arus lonjakan star delta untuk melihat perbandingan arus lonjakan setelah diterapkannya star delta. Dalam starting arus lonjakan DOL yang ada pada mesin cacah plastik 21,312 kWh, mesin cetak pelet 46,91 kWh, mesin cetak briket 50,89 kWh, mesin convreyor 2,48 kWh, dan mesin drying 21,39 kWh. Setelah menerapkan starting star delta terjadi penghematan arus lonjakan sebesar 1/3 dari lonjakan arus DOL, sehingga nilai lonjakan arus pada mesin cacah plastik 7,033 kWh, mesin cetak pelet 15,62 kWh, mesin cetak briket 16,945 kWh, mesin convreyor 0,82 kWh, dan mesin drying 7,124 kWh.

In reducing the surge current in a 3-phase induction motor can be done by analyzing the use of a 3-phase induction motor star delta, analyzing the results of calculating the power savings of starting a 3-phase induction motor, and identifying the total power savings and how much after starting a more economical 3-phase induction motor is applied. The method in this research is descriptive quantitative which measures the DOL surge current and the star delta surge current to see the comparison of the surge current after the star delta is applied. In starting the DOL surge current in the plastic chopping machine is 21.312 kWh, pellet molding machine 46.91 kWh, briquette molding machine 50.89 kWh, convreyor machine 2.48 kWh, and drying machine 21.39 kWh. After applying star delta starting, there is a saving of surge current by 1/3 of the DOL surge current, so that the surge current value on the plastic chopping machine is 7.033 kWh, pellet molding machine 15.62 kWh, briquette molding machine 16.945 kWh, convreyor machine 0.82 kWh, and drying machine 7.124 kWh.