An Induction motor is an electric machine that converts electrical energy into kinetics energy and widely used in the industrial fields. Many disturbances that occur in the motor that cause production to be not optimal as for the problems that occur at PT. Madu Baru Yogyakarta is when there is a disturbance in the three-phase induction motor, workers still use manual methods to analyze the disturbance, so that the time used in the analysis takes a long time even the three-phase induction motor cannot work again. In overcoming this, it is necessary to implement a data logger system that can detect the electrical parameters of a three-phase induction motor in real time, in order to make it easier to analyze existing disturbances through graphs. The voltage sensor CYVS13-34U0 and current sensor SCT-019 will detect the electrical parameters which will then be processed by the Arduino Mega 2560 pro so that the processed data will be stored on the microsd card. The data resulting from the processing are electrical parameters in the form of voltage, current, apparent power, real power, reactive power, and power factor. The data will be saved as a file with .txt format which has an interval of about 1 minute for each storage.
The use of renewable energy is currently one of the alternative energies to support the decline in fossil energy in Indonesia. Solar energy is the right choice for now, as a solar power plant (PLTS), which is a renewable technology, which can convert solar thermal energy into electrical energy. The solar power generation system has various components, one of which is the Solar charge controller. The purpose of this research is to optimize battery charging using the MPPT Solar charge controller type. MPPT solar charge controller, has better characteristics and is able to charge the battery (accu) faster. In this study also pay attention to the effect of light intensity and temperature on the power output generated by the solar cell. The results showed that the MPPT Solar charge controller was able to work better and faster in charging the battery (accu) than other Solar charge controllers. It is proven by the results of the average voltage, current and output power of the MPPT controller of 13.79 volts, 3.06 amperes and 42.26 watts of power, for high light intensity and temperature do not always affect the results of high voltage, current and power, because environmental factors also affect the output of the solar cell.
This Automatic broadcast transmission control is a device that functions to replace a manual switch to an automatic switch with a programmed starting timing process. This device consists of an LED VU Display as an indicator of the voice signal input, a monostable multivibrator as a timer, an Arduino Uno as the main control, and an 8 channel relay module as a substitute for a manual switch. This tool works when the voice signal is active, then relays 1 to 8 will be active, but if the voice signal is off, relays 8 to 1 will be deactivated gradually. On off this channel relay is determined by programmed timing. The results of the experiment show that the active and non-active time of the relay can be programmed in stages with a time difference of 1 second for each relay. Automatic Transmission Control with 8 Relays using Arduino Control is able to automate switching from manual switching to programmable automatic switching.
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