Rancang Bangun Cosphimeter untuk Monitoring Performansi Motor

Saraswati, Ellen Wulan (2019) Rancang Bangun Cosphimeter untuk Monitoring Performansi Motor. Diploma thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Faktor daya adalah salah satu faktor yang mempengaruhi kualitas daya listrik. Faktor daya yang rendah akan berpengaruh buruk terhadap saluran akibat arus listrik yang mengalir semakin tinggi walaupun pada level watt yang tetap, terutama dunia industri yang membutuhkan daya sangat besar, sehingga menggunakan motor induksi 3 fasa sebagai penggerak utamanya. Motor induksi dengan beban penuh dapat memberikan faktor daya tinggi. seperti tercantum dalam papan namanya (name plate) sekitar 0,8. Namun bila motor berbeban kecil,faktor daya turun. Dalam kondisi tersebut dapat dilakukan perbaikan cosphi.Dengan melalui bantuan mikrokontroler dapat dideteksi besarnya faktor daya setiap saat agar mendapatkan hasil yang baik,meskipun motor berada dalam kondisi tidak stabil. Hasil pengujian nilai cosphi dihasilkan sebesar 0,5.Selain itu,dilakukan pengujian rata-rata error untuk pengukuran tegangan mencapai 0,012153%, pengukuran arus 0,22138864%, pengukuran frekuensi 0,01339%. Oleh karena itu faktor daya yang tinggi sangat diinginkan terutama dunia industri agar operasi mesin lebih efisien dan menjaga biaya rendah untuk seluruh system kelistrikan industri.
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The power factor is one of the factors that affect the quality of electric power. The low power factor will affect the channel badly due to higher electric current flowing even at a fixed watt level,especially in the industrial world which requires enormous power, so it uses a 3 phase induction motor as its main driver.Full load induction motors can provide high power factors. as stated on the nameplate about 0.8. But if the motor is small, the power factor drops. In these conditions, cos phi can be repaired. Through the help of a microcontroller, the magnitude of the power factor can be detected at any time in order to get good results, even though the motor is in an unstable condition. The test results of the cos phi value are 0.5. Besides, the average error test for voltage measurements is 0.012153%, current measurement is 0.22138864%, frequency measurement is 0.01339%. Therefore a high power factor is highly desirable, especially in the industrial world so that engine operation is more efficient and maintain low costs for all industrial electrical systems.

Item Type:	Thesis (Diploma)
Uncontrolled Keywords:	power factor, 3 phase induction motor, voltage, current, frequency,microcontroller
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK201 Electric Power Transmission T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2785 Electric motors, Induction. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK6565.T7 Transformers T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7868.P6 Power supply T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7872 Electric current converters, Electric inverters.
Divisions:	Faculty of Vocational > Instrumentation Engineering
Depositing User:	Saraswati Ellen Wulan
Date Deposited:	13 Aug 2026 08:51
Last Modified:	13 Aug 2026 08:51
URI:	http://repository.its.ac.id/id/eprint/69948

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