PANDANGAN TOKOH AISYIYAH DAN TOKOH MUSLIMAT NAHDLATUL ‘ULAMA PAMEKASAN TERHADAP NIKAH SIRI

Siri marriage is defined as a secret marriage or hidden marriage which is different from open marriages in general. Siri marriage is no longer an open secret among the people of Pamekasan. These marriages often occur, the main factor in which these marriages occur is due to the lack of understanding of the public's mindset and also the economic factors in Pamekasan which are still very low. This research aims to describe and find out about the practice of unregistered marriages and also the views of aisyiyah and Muslimat nahdlatul 'ulama regarding unregistered marriages in Pamekasan. The research method used to obtain data in this research is a case study using interview techniques and decommentation techniques. From this research, it is known that the practice of siri marriage in Pamekasan is a normal thing to do in society, and there are also views according to Aisyiyah and Muslimat regarding betel marriages that occur in Pamekasan

Pengujian Peluahan Sebagian Menggunakan Rogowski Coil Inti Ferit dan Non Ferit dengan Variaasi Lilitan Sebanyak 10 Lilitan

Partial Discharge is one of the phenomena that occurs in the electric power system, which is characterized by the phenomenon of heat which will disrupt the insulation system. If this phenomenon is left for a long time, it will disrupt the process of distributing electricity, even stopping the process of distributing electricity. Partial discharge testing can be tested in 2 ways, namely conventional using coupling and conventional using electromagnetic methods, optical methods, acoustic methods, and chemical methods. Moisture testing in part in this study uses a non-conventional method with the electromagnetic method. The electromagnetic method used is the Rogowski Coil with ferrite and non-ferrite cores. Each Rogowski Coil core has an inner diameter of 1.2 cm, an outer diameter of 2.5 cm, a height of 2.5 cm and a total of 10 turns. The results of the partial sweat test show that the non-ferrite core Rogowski Coil responds faster than the ferrite core Rogowski Coil. As for the sensitivity level of the second core used for partial discharge testing, it can be seen that the Rogowski Coil with a ferrite core is more sensitive than the non-ferrite core with a sensitivity value of 11.63%

Optimization of SRC (Semi Refined Carrageenan) and Glucomannan Concentration as Gelling Agent to the Physical Stability Sunscreen Gel of Dry Corncob Extract (Zea mays L.)

BACKGROUND: Corncob is one of crude drug which containing phenolic compounds that can be used as an active ingredient for sunscreen preparations. In this study, extracts of dried corn cob made into a gel formulation using SRC (Semi Refined Carrageenan) and glucomannan as a gelling agent. AIM: This study aims to determine the optimal concentration of SRC (Semi Refined Carrageenan) and glucomannan to the physical stability of the gel. METHODS: Gel made into four formulas with a ratio of 1: 4 and the concentration of each formula was 1%, 1.5%, 2%, 2.5%. Each formula was evaluated for 6 weeks of storage that includes organoleptic test, homogeneity, pH, viscosity, dispersive power, freeze-thaw test and centrifugation. RESULTS: The results showed the fourth formula did not change the organoleptic test and homogeneity test. In the test separation of the freeze-thaw method, the fourth formula was stable, while in the centrifugation test formula 1 and 2 was been separation. pH and viscosity results obtained from statistics with a two-way ANOVA showed significant differences in each formula. CONCLUSION: From the results of this study concluded that the formula 3 with a concentration of 2% was the optimal concentration as a gelling agent

Optimization of SRC (Semi Refined Carrageenan) and Glucomannan Concentration as Gelling Agent to the Physical Stability Sunscreen Gel of Dry Corncob Extract (Zea mays L.)

BACKGROUND: Corncob is one of crude drug which containing phenolic compounds that can be used as an active ingredient for sunscreen preparations. In this study, extracts of dried corn cob made into a gel formulation using SRC (Semi Refined Carrageenan) and glucomannan as a gelling agent. AIM: This study aims to determine the optimal concentration of SRC (Semi Refined Carrageenan) and glucomannan to the physical stability of the gel. METHODS: Gel made into four formulas with a ratio of 1: 4 and the concentration of each formula was 1%, 1.5%, 2%, 2.5%. Each formula was evaluated for 6 weeks of storage that includes organoleptic test, homogeneity, pH, viscosity, dispersive power, freeze-thaw test and centrifugation. RESULTS: The results showed the fourth formula did not change the organoleptic test and homogeneity test. In the test separation of the freeze-thaw method, the fourth formula was stable, while in the centrifugation test formula 1 and 2 was been separation. pH and viscosity results obtained from statistics with a two-way ANOVA showed significant differences in each formula. CONCLUSION: From the results of this study concluded that the formula 3 with a concentration of 2% was the optimal concentration as a gelling agent

Analisis Kedip Tegangan Akibat Gangguan Hubung Singkat pada Sistem Jaringan Distribusi 20 KV di Penyulang Kenari Gardu Induk Seduduk Putih

Intisari — Kestabilan ditunjukkan oleh lama terjadinya kedip tegangan, lamanya kedip tegangan menunjukkan tingkat kestabilan tegangan pada sistem tenaga listrik. Salah satu parameter yang menunjukkan kualitas sistem tenaga listrik adalah tegangan. Tujuan dari penelitian ini adalah untuk mengidentifikasi besaran dan lokasi dimana arus gangguan hubung singkat terbesar dan menghitung besaran kedip tegangan di Penyulang Kenari. Kedip tegangan dihitung berdasarkan panjang penyulang yang mengalami gangguan, titik gangguan, impedansi sumber, reaktansi urutan transformator, impedansi urutan penyulang dan ekivalen jaringan, arus gangguan hubung singkat 1 fasa ke tanah, 2 fasa, 3 fasa, tegangan urutan setiap jenis gangguan. Hasil dari perhitungan menunjukkan arus gangguan hubung singkat terbesar untuk setiap jenis gangguan pada panjang total saluran 8,7 km dan 2,89 km berada di titik gangguan 20 % dari panjang total saluran, sedangkan kedip tegangan terbesar pada panjang total saluran 8,7 km untuk 1 fasa ke tanah dan 3 fasa berada di titik gangguan 100 %, 2 fasa berada di titik gangguan 80 %, dan pada panjang total saluran 2,89 untuk 1 fasa ke tanah berada di titik gangguan 80 %, 2 fasa dan 3 fasa di titik gangguan 100 %.Kata kunci — Kedip Tegangan, Gangguan Hubung Singkat, Penyulang Kenari

Proteksi Motor Induksi Satu Fasa Terhadap Kenaikan Suhu Pada Pengering Maggot Berbasis Panel Surya

Electric motors are a very vital need in an industry, household and other needs. Electric motors that are often used in an industry are types of induction motors, where the induction machine is an electric motor that is very easy in its maintenance system so that this motor has the highest rating in its use system. In this study, using a single-phase induction motor as a maggot dryer is useful for making the maggot storage period longer and of high selling value. This study aims to protect the single-phase induction motor in the maggot drying system against temperature increase due to prolonged grinding using the DS18B20 sensor. So that the single-phase induction motor is able to work when the motor is unstable at the time of overcurrent. With the installation of the DS18B20 sensor, the single-phase induction motor will stop automatically when the given temperature setting has exceeded the limit set on the sonoff.  With the protection system of this single-phase induction motor, it can maximize the performance of the electric motor in the maggot drying process and provide convenience in remote motor control and time setting on and off using the Internet of Things (IoT)

Rogowski coil sensor in the digitization process to detect partial discharge

This paper presents the construction of a Rogowski Coil sensor with an air core to detect partial discharge using a digital oscilloscope. Two types of sensors are used. The first is the primary sensor winding with back wire, and the second is without back wire, labeled BW and WBW, respectively. The numbers of primary-turn in the sensors are 5, 10, 20, and 40 turns. The performance of the sensors is tested using two types of tests. First, the wave response test with a fixed imitation partial discharge magnitude input is used to select the optimum sensitivity with the lower sampling rate, aims to select the peak or valley value as a magnitude partial discharge value. The second test is using an imitation partial discharge ramp to check the linearity of the sensors. The imitation of the partial discharge inputs is generated by a commercial charge calibrator. The wave response test results show an increase in the number of turns that corresponds to an increase of the sensor output for both sensors in a non-linear trend. In determining the sampling rate, the detection of magnitude in the valley is better than the peak. All sensors act linear toward the imitation partial discharge ramp either in BW or WBW conditions

Analysis of Chemical Content, Cytotoxic and Anti-Bacterial Activity Essential Oil of Lantana Camara Linn Leaves from Various Regions

Lantana camara Linn is a family of Verbenaceae that grows in tropical and subtropical areas and spread in about 50 countries in the world. This plant contains essential oils with different contents based on the difference in the place of growth. The purpose of this study was to isolate and determine the chemical content of the essential oil of L. camara Linn leaves obtained from Agam, Tanah Datar, Kampar Regency, Padang Panjang City and to determine its cytotoxic and antibacterial activity. Isolation was carried out by hydro distillation method and chemical content analysis using Gas Chromatography-Mass Spectrometry (GC-MS). The high yield from the isolation of essential oil from leaves of L. camara Linn obtained from Tanah Datar Regency was 0.095% (w/w). The results of the analysis of the essential oil content with the main compounds for all Regency and City being caryophyllene with the high area percent was Tanah Datar Regency (19.74%). Cytotoxic activity test using the Brine Shrimp Lethality Test (BSLT) method showed that L. camara Linn essential oil was highly toxic with an LC50 value of 28.34 µg/mL from Padang Panjang City. Antibacterial activity test by disc diffusion method showed that L. camara Linn essential oil had moderate antibacterial activity againts Staphylococcus aureus and Escherichia coli bacteria, with high clear zone from Agam Regency was 12.9 mm and Tanah Datar Regency was 7.8 mm, respectively, at concentration of 100%

Pengembangan Sensor Peluahan Sebagian Menggunakan Kumparan Rogowski Berinti Bahan Feromagnetik dan Non Feromagnetik

Fenomena peluahan sebagian yang terjadi di dalam isolasi merupakan salah satu faktor yang dapat menyebabkan penyaluran energi listrik terganggu bahkan dapat mengakibatkan penyaluran energi listrik terhenti. Sebelum hal ini terjadi maka dilakukan pemantauan atau pengujian dari peluahan sebagian. Pengujian peluahan sebagian terdiri dari 2 jenis pengukuran yaitu pengukuran secara konvensional dan pengukuran secara non konvensional. Pada penelitian ini, dilakukan pengukuran peluahan sebagian menggunakan pengukuran secara non konvensional yaitu menggunakan sensor kumparan Rogowski. Adapun sensor kumparan Rogowski yang digunakan memiliki dimensi dengan diameter dalam sebesar 1,2 cm, diameter luar sebesar 2,5 cm, dan tinggi sebesar 2,5 cm. Sensor kumparan Rogowski dilakukan dengan memvariasikan jumlah lilitan yaitu 5, 10, 20, dan 40 lilitan dengan ketebalan kawat tembaga lilitan sebesar 0,35 mm, dan dengan inti bahan sensornya yaitu feromagnetik dan non-feromagnetik. Hasil dari pembacaan sensor kumparan Rogowski akan disimpan pada program LabView. Dari hasil pengujian 8 sensor kumparan Rogowski yang didapatkan bahwa pembacaan tegangan maksimum dengan inti feromagnetik lebih baik dari inti non feromagnetik. Sensor yang memiliki sensitivitas yang paling tinggi adalah sensor dengan inti feromagnetik dengan jumlah 5 lilitan dengan tingkat sensitivitas 16,57%