Implementation of Micro Controller Based Electromechanical Over Current Relay for Radial Feeder Protection

Khan, Basit; Ashraf, Hafiz Muhammad; Hamid, Shahzaib; Asif, Rameez; Bashir, Usman

doi:10.1109/ceet1.2019.8711841

Cited by 6 publications

(5 citation statements)

References 3 publications

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“…Time Setting menentukan kecepatan waktu pengoperasian relay, sementara pengaturan PS menentukan batas arus maksimum yang dapat melalui beban. Dalam purwarupa OCR pada penelitian ini, memiliki input Irelay (input current), konstanta time setting dan PS (Plug Setting/Pick-up) yang dijabarkan pada Gambar 1 [7], [8]. Karakteristik Inverse Definite Minimum Time (IDMT), Very Inverse, Extremely Inverse, dan Long Time Inverse memiliki karakteristik semakin besar suatu gangguan, semakin cepat harus ditangani untuk menghindari kerusakan pada peralatan.…”

Section: Pembahasan Dan Hasil Pengujianunclassified

Rekomendasi Desain Relay Arus Lebih Standar IEC Berbiaya Rendah Menggunakan Arsitektur Mikrokontroller ATMega328P

Palevi

Hamid

Megawati

2022

seniati

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Dalam operasi sistem tenaga listrik, gangguan yang terjadi dapat mengakibatkan terganggunya penyaluran tenaga listrik ke konsumen. Sistem proteksi berperan penting dalam mendeteksi adanya gangguan dan dapat mencegah kerusakan yang dapat menyebabkan gangguan lebih besar. Relay Arus Lebih (Over Current Relay/OCR) adalah suatu perangkat yang bekerja berdasarkan kenaikan arus yang melebihi suatu nilai pengaman tertentu dalam jangka waktu tertentu. Dalam standar IEC Curve metode yang digunakan terdiri dari Extremely Inverse, Very Inverse, Normally Inverse, dan Moderatelly Invese. Pada paper ini telah dirancang suatu purwarupa OCR menggunakan mikrokontroller ATMega328P sebagai pemroses algoritma. Purwarupa OCR dilengkapi dengan pengaturan ISetting (PS) menggunakan potensiometer yang terhubung pada papan Arduino Uno dengan memperhatikan besarnya beban yang ditangani. Pick up sensor menggunakan sensor arus Current Transformers (CT) yang akan mendeteksi perubahan besaran arus AC yang mengalir pada beban. Pada penelitian ini tidak membandingkan metode mana yang terbaik dalam operasi sistem proteksi OCR, tetapi lebih ke arah pembuktian, bahwa OCR sederhana yang dibangun menggunakan arsitektur ATMega328P cukup handal, murah, dan sederhana dalam instumentasi.

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Section: Pembahasan Dan Hasil Pengujianunclassified

Rekomendasi Desain Relay Arus Lebih Standar IEC Berbiaya Rendah Menggunakan Arsitektur Mikrokontroller ATMega328P

Palevi

Hamid

Megawati

2022

seniati

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“…Mohamed Zellagui and his team develop a project about the impact of GTO Controlled Series Capacitor (GCSC) parameters on the Inverse Definite Minimum Time (IDMT) (DOCR) centered on the Global Electro technical Commission (IEC) standards. The DOCR is used to secure a single 400 kV transmission system in Algeria's transmission network that connects to the Algerian Company of Electrical and Gas (Group Sonelgaz) [1]. A research considering the designing of the electromechanical and microcontroller (Arduino) based relays an educational lab trainer to compare the behavior of both relays in overcurrent protection of radial feeder which was designed for protection of two sections so that the concept of primary and secondary protection is observed [4].…”

Section: Literature Reviewmentioning

confidence: 99%

“…Not only for economic reasons but also consumers, the ability of the protection system is required simply to expect "reliable" service. The defensive relay is most commonly combined with the Circuit Breaker relay so that the unstable state in the device can be isolated [1].…”

Section: Introductionmentioning

confidence: 99%

Implementation of Inverse Define Minimum Time Under and Over Voltage Relay

2021

ijSmartGrid

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The key purpose of this project is to invent a mechanism for high/low voltage tripping that will protect against danger. Microcontroller-based relays run rapidly and have less running time. Frequent variations are frequent in the availability of AC mains and the business. A low path of resistance contributes to an extra current flow. Due to multiple causes, irregular over voltages can occur. To secure the load, the tripping function is nice to have. The purpose of our project is to secure electrical devices using an Arduino above and below the voltage. The primary aim of this relay is to isolate the load by monitoring the relay tripping coil with Arduino from the over and under-voltage conditions. It detects any voltage greater than or less than 230V AC (pre-set value). In turn, when the voltage is greater than / less than the current value, it begins a trip signal that is provided to the circuit breaker, then removes the load from the circuit breaker source. Also, for relays, Definite Minimum Time (IDMT) function is used. It is possible to expand this project further to over content relays. As the sum of supply voltage increases, the trip time decreases for reverse time features and the relay operates accordingly. The relay operates on the stated time characteristics only after 5 seconds of failure, regardless of the sum of device voltage. Where the voltage returns to the pre-set value, the relay is reset during relay service (230V AC).Keywords Inverse define minimum time, protective relay, over-voltage, trip time, preset value, definite time.

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“…A fault in the circuit can be obtained due to the failure that cognizable with the ordinary current flow. When the system insulation fails due to low impedance itinerary either between phase (s) to ground or phases a short [13][14][15][16][17]. Circuit fault will occur; this short circuit faults are classified as [18]:…”

Section: Faults and Classificationsmentioning

confidence: 99%