DESIGN OF VOLTAGE AND CURRENT ACQUISITION SUBSYSTEM, DATA STORAGE, AND EARLY DETECTION OF SHORT CIRCUIT FAULT LOCATORIN 150 KV TRANSMISSION LINE
<p align="justify"> High voltage electrical transmission system is part of the most frequent power supply system especially short circuit interference. In this final project designed a tool to detect the location of short circuit interference quickly and accurately. One sub system of...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/25249 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | <p align="justify"> High voltage electrical transmission system is part of the most frequent power supply system especially short circuit interference. In this final project designed a tool to detect the location of short circuit interference quickly and accurately. One sub system of the tool is a signal acquisition sub system. Sub signal acquisition system consists of sensor, signal conditioner and analog-to-digital converter. A ZMPT101B voltage sensor module is used to convert a three-phase potential transformer voltage at a 110VAC cubicle into a corresponding three-phase voltage value to the microcontroller, and a current sensor module SCT-130-030 to convert a three-phase current from a current transformer to a cubic value 0- 5A becomes a three-phase current value compatible to the microcontroller. In analog-to-digital converter used the STM32F446RE microcontroller is designed to perform 12-bits ADC with Triple Regular simultaneous mode configuration, on all three ADCs and 2 channels for each ADC continuously with 1 MSPS capability. The voltage and current signal acquisition subdivision is designed to read the secondary side voltage signal of the PT and the secondary side current signal CT on the Cubicle Stations of the Substation so that it can be a digital signal that can be processed using a microcomputer on subsequent processing. Testing of signal acquisition subsystem on cubicles of substation has not been done. As an alternative step, a Variable Transformer Step Down is used to measure the voltage and load variation to measure the current. In the alternative test, the average voltage measurement error is 3.83%, the average current measurement error is 1.47%. <p align="justify"> |
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