2020
DOI: 10.1088/1757-899x/881/1/012142
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Design and Implementation a New Real Time Overcurrent Relay Based on Arduino MEGA

Abstract: The relay is very important part of a power system to protect the electrical power system from the disturbances. The new proposed relay is overcurrent relay OCR that be used to protect the devices from any increasing of setting current. The new designs of OCR based on embedded system that used to emulate two characteristics: Instantaneous and Definite Time, The Instantinious work directly without any wait when the current exceed the max current that causes system damage, the other type is working when the pass… Show more

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Cited by 6 publications
(4 citation statements)
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“…Each LED is directly powered by a 5 V digital signal from the microcontroller. A bias resistor is used to limit the current across the LEDs to 40 mA, which is the maximum current the microcontroller can provide [51].…”
Section: Signal Acquisitionmentioning
confidence: 99%
“…Each LED is directly powered by a 5 V digital signal from the microcontroller. A bias resistor is used to limit the current across the LEDs to 40 mA, which is the maximum current the microcontroller can provide [51].…”
Section: Signal Acquisitionmentioning
confidence: 99%
“…Dengan demikian, waktu operasi berbanding lurus dengan TMS dan berbanding terbalik dengan PSM. Karakteristik relay ditunjukkan pada Gambar 2 [9] 𝑅 𝐵𝑢𝑟𝑑𝑒𝑛 = 500 Ω…”
Section: Pembahasan Dan Hasil Pengujianunclassified
“…The power supply stage is devoted to bias every LED. The intensity that circulates through the LEDs when they are powered at 5 V must not exceed 40 mA, which is the maximum input current that can be applied to the digital pins of the microprocessor [23]. The protection resistors were chosen in such a way that the previous condition is fulfilled, being the nominal values 91 Ω, 160 Ω and 186 Ω for the green, red and infrared LEDs, respectively.…”
Section: Fabrication and Signal Processingmentioning
confidence: 99%