Dalam dunia pertambangan motor listrik tentu tidak asing lagi dapat ditemukan guna untuk mempermudah proses produksi batu bara, motor listrik dapat ditemukan di bagian primary crusher. primary crusher adalah alat penggiling batu bara untuk memberikan ukuran standar. di pt. pesona khatulistiwa nusantara terdapat dua motor listrik yang berfungsi untuk menggerakkan primary crusher tersebut. dalam penelitian kali ini tahap yang dilakukan yaitu studi literatur lalu kemudian melakukan pengambilan data yang meliputi (tegangan, arus, kecepatan) yang diambil ketika tanpa beban dan ada beban. kemudian data tersebut dimasukkan kedalam perhitungan daya input, torsi, daya output dan efisiensi lalu hasil tersebut dianalisa dalam bentuk grafik yang menampilkan perbandingan motor induksi 1 dan motor induksi 2, hasil dari penelitian ini antara lain yaitu daya input yang diperoleh ketika motor induksi tanpa beban yaitu, motor 1: 23274 watt, motor 2: 22716 watt. dan ketika ada beban yaitu, motor 1 : 59043 watt, motor 2 : 50542 watt. torsi yang diperoleh dari hasil perhitungan ketika tanpa beban yaitu motor 1 : 148.44 nm, motor 2 : 146.66 nm. dan ketika ada beban yaitu, motor 1 : 379.62 nm, motor 2 : 328.06 nm. daya output yang diperoleh berdasarkan perhitungan ketika tanpa beban yaitu motor 1 : 23274 watt, motor 2 : 22716 watt. dan ketika ada beban motor 1 : 59044 watt, motor 2 : 50543 watt. efisiensi yang diperoleh berdasarkan perhitungan ketika tanpa beban yaitu motor 1 : 100%%, motor 2 : 100% . dan ketika ada beban yaitu motor 1 : 99.9% dan motor 2 : 100%.

In the mining world, electric motors can be found as benefits to ease coal production processes. it can one seen in the primary crusher section. two electric motors function to drive the primary crusher at pt. pesona khatulistiwa nusantara. this research was conducted based on a literature review, followed by data retrieval (voltage, current, and velocity) taken while free of load and load. this data was then included in calculating inputs, torque, output power, and efficiency and then analyzed in this graphic to show the difference between the first and second induction motors. the research results showed that the input power obtained when the motor induces without charge, namely the first motor, was 23274 watts, and the second motor was 22716 watts. when loaded, the first motor was 59043 watts, and the second motor was 50542 watts. the torque obtained from the calculation when unloaded, the first motor, was 148.44 nm, and the second was 146.66 nm. when loaded, the first motor was 379.62 nm, and the second motor was 328.06 nm. the power output is based on a calculation without a load. namely, the first motor was 23274 watts, and the second motor was 22716 watts. when loaded, the first motor was 59044 watts, and the second motor was 50543 watts. the efficiency derived from the calculation when unloaded was that the first motor was 100%, the second motor was 100%, and when it was loaded, the first motor was 99.9%, and the second motor was 100%.