?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PERANCANGAN+DAN+IMPLEMENTASI+ALAT+UKUR+COS+%CF%86+METER%0D%0ADIGITAL+BERBASIS+MIKROKONTROLER+ATMEGA+328&rft.creator=HERDIAWAN+YUDISTIRA+%2C+0815031062&rft.subject=Teknik+Elektro.+Rekayasa+elektronik+Nuklir&rft.description=ABSTRAK%0D%0ACos+%CF%86+meter+merupakan+alat+yang+digunakan+untuk+mengetahui+besarnya+faktor%0D%0Adaya+(power+factor).+Karena+pentingnya+nilai+faktor+daya+maka+dibutuhkan+suatu%0D%0Aalat+untuk+melakukan+pengukuran+yang+tepat+guna+untuk+mengetahui+kualitas%0D%0Adaya+sehingga+dapat+meningkatkan+efesiensi+tenaga+listrik.%0D%0ATujuan+dari+tugas+akhir+ini+adalah+membuat+alat+ukur+digital+yang+mampu%0D%0Amembaca+nilai+Cos+%CF%86+yang+berbasis+mikrokontroler+ATmega+328+dan+kemudian%0D%0Amembandingkan+tingkat+ketelitiannya+dengan+alat+ukur+Cos+%CF%86+analog.+Pada%0D%0Aprinsipnya+alat+ukur+ini+membandingkan+beda+fasa+antara+arus+dan+tegangan+dari%0D%0Aoutput+komparator%2C+sedangkan+pada+pengujiannya+menggunakan+3+buah+beban%0D%0Ayaitu+beban+resistif%2C+induktif%2C+dan+kapasitif.%0D%0AHasil+dari+perancangan+ini+adalah+alat+ukur+Cos+%CF%86+meter+digital+yang+berhasil%0D%0Amembaca+nilai+Cos+%CF%86+untuk+pengujian+3+buah+beban.+Pada+pengujian%0D%0Amenggunakan+beban+resistif+dengan+R+256+%EF%81%97+didapat+nilai+cos+%CF%86+sebesar+0%2C92%0D%0Asedangkan+pada+alat+ukur+Cos+%CF%86+meter+analog+didapatkan+nilai+sebesar+1.+Untuk%0D%0Abeban+induktif+menggunakan+R+256+%EF%81%97+dihubungkan+seri+dengan+L+0%2C24+H%0D%0Adidapatkan+nilai+Cos+%CF%86+sebesar+0%2C91+sedangkan+pada+alat+ukur+Cos+%CF%86+meter+analog%0D%0Amenggunakan+beban+yang+sama+didapatkan+nilai+sebesar+0%2C94.+Pada+pengujian%0D%0Amenggunakan+beban+kapasitif+dengan+R+22+%EF%81%97+dihubungkan+seri+dengan+kapasitor%0D%0AC+16+%CE%BCf+didapatkan+nilai+cos+%CF%86+sebesar+0%2C96+sedangkan+pada+alat+ukur+cos+%CF%86+meter%0D%0Aanalog+didapatkan+nilai+sebesar+0%2C98.+Hasil+pengujian+yang+diperoleh+memiliki%0D%0Asedikit+perbedaan+dengan+hasil+pengujian+menggunakan+cos+%CF%86+meter+analog.+Hasil%0D%0Apengukuran+menggunakan+Cos+%CF%86+meter+analog+jauh+lebih+baik+dibandingkan%0D%0Adengan+Cos+%CF%86+meter+digital.%0D%0AKata+kunci+%3A+Cos+%CF%86+meter%2C+faktor+daya+(power+factor)%2C+mikrokontroler+ATmega%0D%0A328%2C+komparator.%0D%0AABSTRACT%0D%0ACos+%CF%86+meters+serve+as+an+instrument+that+is+used+to+know+the+power+factor.+Because%0D%0Athe+importance+of+the+value+of+power+factor+it+takes+an+apparatus+for+performing+the%0D%0Aexact+measurement+to+know+the+quality+of+power+so+can+increase+the+efficence+of%0D%0Aelectric+power+.%0D%0AThe+purpose+of+duty+end+of+this+is+to+make+a+measuring+instrument+digital+are+able+to%0D%0Aread+value+cos+%CF%86+based+on+mikrokontroler+atmega+328+and+then+compare+the%0D%0Aprecision+with+a+measuring+instrument+cos+%CF%86+analog.+In+principle+a+measuring%0D%0Ainstrument+this+compare+different+the+phase+between+the+current+and+voltage+of+the%0D%0Aoutput+comparator+%2C+while+in+its+testing+with+3+kind+of+load+which+is+resistif+load%2C%0D%0Ainductive+load%2C+and+capasitive+load+.%0D%0AThe+result+of+this+research+is+the+measuring+tools+cos+%CF%86+meter+digital+can%0D%0Asuccessfully+read+the+value+of+cos+%CF%86+for+testing+3+pieces+of+load.+In+testing+using+a%0D%0Aresistive+load+with+R+256+%EF%81%97+obtained+cos+%CF%86+value+of+0.92+%2C+while+in+the+meter+analog%0D%0Ameter+cos+%CF%86+obtained+a+value+of+1+.+To+use+the+inductive+load+R+256+%EF%81%97+is+connected%0D%0Ain+series+with+L+0%2C24+H+obtained+cos+%CF%86+value+of+0%2C91%2C+while+the+measuring+tool+cos+%CF%86%0D%0Aanalog+meter+using+the+same+load+obtained+a+value+of+0%2C94.+In+testing+using+a%0D%0Acapacitive+load+with+R+22+%EF%81%97+connected+in+series+with+the+capacitor+C+16+%CE%BCf+obtained%0D%0Acos+%CF%86+value+of+0%2C96%2C+while+in+the+cos+%CF%86+meter+analog+obtained+a+value+of+0%2C98.+The%0D%0Atest+results+obtained+has+little+difference+with+the+results+of+testing+using+cos+%CF%86%0D%0Aanalog+meter+.+Cos+%CF%86+measurement+results+using+analog+meter+is+much+better+than%0D%0Athe+digital+meter+cos+%CF%86+.%0D%0AKeyword+%3A+Cos+%CF%86+meter%2C+Power+Factor%2C+Microcontroller+Atmega+328%2C+Comparator&rft.publisher=FAKULTAS+TEKNIK&rft.date=2015-12-10&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F21331%2F1%2FABSTRAK%2520%2528ABSTRACT%2529.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F21331%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F21331%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++HERDIAWAN+YUDISTIRA+%2C+0815031062++(2015)+PERANCANGAN+DAN+IMPLEMENTASI+ALAT+UKUR+COS+%CF%86+METER+DIGITAL+BERBASIS+MIKROKONTROLER+ATMEGA+328.++FAKULTAS+TEKNIK%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F21331%2F