International Journal of Science, Engineering and Information Technology
Vol 7, No 02 (2023): IJSEIT Volume 07 Issue 02 29 July 2023

Analysis of Transformer Protection Systems Using Smart Relays for Electrical Energy Stability

Yuli Prasetyo (Politeknik Negeri Madiun)
Dimas Nur Prakoso (Politeknik Negeri Madiun)
Ryan Wicaksono (Politeknik Negeri Madiun)
Budi Triyono (Politeknik Negeri Madiun)
Santi Triwijaya (Politeknik Perkeretaapian Indonesia Madiun)

Article Info

Publish Date
28 Jul 2023


A transformer is an electrical device that is used to change the voltage from one level to another in order to transfer electrical energy from one place to another. One of the main benefits of a transformer is to reduce power loss in the electrical network. Transformers can be used to stabilize the electric voltage and keep the electric voltage within safe limits. The protection system on the transformer is very important to prevent damage or failure to the transformer which can cause disruption of the electricity supply or even fire. This protection will work to cut off electrical connections and prevent damage to the transformer. Overload interference occurs if the current read on the Smart Relay LCD is more than 10 A so that the contactor will work after a disturbance of 5 seconds and the green indicator light will turn off. Whereas for Overheat interference on the transformer if the temperature exceeds 450C then the contactor will work to turn off the system with a duration of 1-2 seconds then the green indicator light and the system will OFF. The voltage drop disturbance occurs if the voltage read on the Smart Relay LCD is less than 15 kV on the primary side of the transformer and less than 300 V on the secondary side of the transformer so that the contactor will work to cut off the voltage after a disturbance occurs for 8-10 seconds then the green indicator light will turn off.

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Journal Info





Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering


International journal of science, engineering and information techology (IJSEIT) is open access and peer-reviewed journal, published by Universitas Trunojoyo Madura which. We escalate both theoretical and experimental papers of permanent interest, not previously published in a journal that aims to ...