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Journal : GEMA TEKNOLOGI

KWH METER DIGITAL DENGAN SISTEM PRABAYAR BERBASIS IC BL0932 DAN MIKROKONTROLER 38024 Lukito, Bimo Kristianto; Winarno, Heru
Gema Teknologi Vol 17, No 2 (2013): October 2012 - April 2013
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (465.618 KB) | DOI: 10.14710/gt.v17i2.8917

Abstract

Bimo Kristianto Lukito, Heru Winarno, in paper prepaid digital KWH meter based on IC BL0932 and microcontroller 38024 explain that an analog meter kWh used by PLN placed in homes. Has several drawbacks, including the effects of age and weather making its numbers less opaque and can be seen. Read error resulted in the use of electrical power and recording electricity bills electricity that could harm users. To overcome these problems made ​​a digital kWh meter with prepaid systems, with the advantages of digital display are lit and large enough. The system replaced the way payments are prepaid, by using an electronic prepaid card replacement bills. Digital kWh meter is controlled by a microcontroller with type 38024 and type IC BL0932 uses a function to read the voltage and current (with load reaches 1300 watts) to determine the energy used in home installations using the LCD as a data viewer that the amount of electrical energy used at home . The payment system by purchasing an electronic voucher, containing a digital scale (functioning as a pulse) as a comparison of the amount of energy used. This system automatically decides if the magnitude of the voltage reaches a value of 0. Keywords : digital kWh meter, IC BL0932, microcontroller 38024
PEMBUATAN KWH METER DIGITAL 1 FASA BERBASIS ARDUINO MEGA 2560 Afria B, Muhammad Gifar; Winarno, Heru
Gema Teknologi Vol 19, No 3 (2017): April 2017 - October 2017
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (379.428 KB) | DOI: 10.14710/gt.v19i3.21882

Abstract

Muhammad Gifar Afria B, Heru Winarno, in general, a digital kWh meter that can be used to monitor the cosphi value is a 3 phase kWh meter. For 1 phase kWh meters it can only be used to monitor voltage and load usage. In this tool a 1 phase digital kWh meter prototype is made that can be used to monitor cosphi. Cosphi can be compared by comparing voltage and current signals using LM 393 IC. The reading results from IC LM 393 are compared with EX-OR IC so that high signal is obtained when voltage and current have phase difference only. The output of the EX-OR IC is inserted into Arduino to be read and calibrated so that it can be displayed on the LCD. for the process of reading the current magnitude used ACS 712 current sensor, while for the voltage sensor reading step down transformer is used with the principle of voltage divider. In this system, the Arduino MEGA 2560 microcontroller is used as a sensor reading processor that is programmed using the C ++ language so that it can be displayed on a 16x4 LCD. This digital KWH is also equipped with overcurrent protection using a 5vdc relay that is set to work with a driver in the form of an NPN transistor program on Arduino MEGA 2560. In its appearance this tool can provide information in the form of current, voltage, cosphi and the amount of power used in units of time and has been converted into units of rupiah. This tool can help read electrical instrumentation for homes that are still using analog KWH meters. In the process of measuring this device has an error rate of 0% for current reading, 0.4 for voltage reading, 0.07 for cosphi reading and 4.5% for kWh reading.
PENDETEKSI KETINGGIAN LEVEL AIR DENGAN TAMPILAN LCD BERBASIS MIKROKONTROLLER ATMEGA 8 SERTA LED BUZZER DAN SEVEN SEGMENT SEBAGAI PERINGATAN DINI KENAIKAN AIR PASANG (ROB) BERBASIS PROGRAMMABLE LOGIC CONTROLLER CP1E-E40DR-A Rahardjo, Rizal Fauzan Adi; Winarno, Heru
Gema Teknologi Vol 17, No 1 (2012): April 2012 - October 2012
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (458.121 KB) | DOI: 10.14710/gt.v17i1.8913

Abstract

Rizal Fauzan Adi Rahardjo, Heru Winarno, in paper water level detection based atmega 8 microcontroller with lcd display, led, buzzer and seven segment as early warning of post water (rob) increase based CP1E-E40DR-A programmable logic controller explain that as a result of the overflow of the tidal sea water in rural areas sriwulan sayung District of Demak , the tidal water easily entered into the residential area , which can be fatal if not in further tackle. Tidal flood has become commonplace in the area Sriwulan Sayung District of Demak . However , the longer the tidal flood is troubling and very disturbing society . So I took the initiative to create a miniature tidal flood prevention . Height of the water level of a river that flows directly into the sea will be detected by the sensor. The sensors will send data to the PLC and will be displayed by the seven segment . Further increase in the water level of the river will also affect the water level in the ditch homes residents . Height of the ditch water level is detected by the sensor which will send data to the PLC and then displayed by seven segment LCD and previously through the microcontroller atmega 8. The maximum height of the water level gutter will be marked with berbunyinya buzzer and LED life. Keywords : Sensor , Seven Segment , Microcontroller Atmega 8 , LCD , LED, buzzer.
SIMULATOR KUBIKEL MINIMUM UNTUK INVESTIGASI GANGGUAN SCADA SISTEM DISTRIBUSI TENAGA LISTRIK 20 KV Prasetiyo, Wahyu Adi; Winarno, Heru
Gema Teknologi Vol 17, No 4 (2014): October 2013 - April 2014
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (663.342 KB) | DOI: 10.14710/gt.v17i4.8936

Abstract

Wahyu Adi Prasetiyo, Heru Winarno, in this paper explain that with the SCADA system delivery and processing of data from substation equipment consisting of equipment protection, control and measurement becomes faster known by the operator (dispatcher). Measurement and status information indicative of the electric power system are collected in RTU is placed in the substation (GI) which is then sent to the SCADA Master Station.Kinerjasistem dipengaruhiolehpopulasigangguan happened. The more the population of nuisance, then it will significantly reduce the level of reliability of the distribution network which is under the control of the SCADA system. SCADA interference in the distribution of electrical power distribution systems 20 kV affect the level of reliability of the distribution network. Especially if the disturbance of the telecontrol Circuit Breaker. To repair SCADA telecontrol especially the disruption of the necessary investigative trials open close CB, but in emergency situations CB load shedding can not be done with the many considerations. Simulator cubicles with Circuit Breaker Dummy serves to replace the function of the actual CB in order to do the test cubicles control of SCADA without load shedding. By removing the SCADA communication in cubicles and then move it to the CB Dummy testing/investigation disorder can be performed optimally. This tool is equipped with IED Digital Meter Relay Protection and SCADA based so that in addition to the investigation failed control can also be used for investigations and telesignal telemetering disorders. Keywords: scada, investigations, reliability.