Development of an Automated Overvoltage and Undervoltage Tripping Scheme for Power System Protection

Srinivas, Chichari; Sai, Nalla Bhargava; Prakash, Sunkara Sai; Vinay, Vegi; Babu, Arumilli Satya Sai

doi:https://doi.org/10.55041/ijcope.v2i4.188

Volume 02, Issue 04

Published on: April 2026

DEVELOPMENT OF AN AUTOMATED OVERVOLTAGE AND UNDERVOLTAGE TRIPPING SCHEME FOR POWER SYSTEM PROTECTION

Chichari Srinivas Nalla Bhargava Sai Sunkara Sai Prakash Vegi Vinay Arumilli Satya Sai Babu

Adabala Siva Sarpakarao

Bonam Venkata Chalamayya Engineering College Odalarevu AP

DOI:https://doi.org/10.55041/ijcope.v2i4.188

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Abstract

Sudden voltage fluctuations such as over-voltage and under-voltage can cause severe damage to household and industrial electrical appliances. To address this issue, a microcontroller-based voltage protection system is designed that continuously monitors the input voltage and disconnects the load during unsafe conditions. In this project, a potentiometer is used to manually vary and simulate voltage levels, which are processed by the microcontroller to determine whether the input lies within the predefined safe operating range. When an abnormal voltage condition is detected, the microcontroller triggers a relay to disconnect the load, thereby preventing damage. Additionally, the system provides real-time alerts through an LED, a buzzer, and SMS notifications via a GSM module, ensuring both local and remote monitoring. The system is programmed in embedded C to achieve intelligent decision making and reliable operation. This low-cost and efficient solution demonstrates an effective method of protecting appliances such as refrigerators, air conditioners, and microwave ovens.

Keywords: Over Voltage; Under Voltage; Microcontroller; Relay; GSM; Protection System.

How to Cite this Paper

Srinivas, C., Sai, N. B., Prakash, S. S., Vinay, V. & Babu, A. S. S. (2026). Development of an Automated Overvoltage and Undervoltage Tripping Scheme for Power System Protection. International Journal of Creative and Open Research in Engineering and Management, <i>02</i>(04). https://doi.org/10.55041/ijcope.v2i4.188

Srinivas, Chichari, et al.. "Development of an Automated Overvoltage and Undervoltage Tripping Scheme for Power System Protection." International Journal of Creative and Open Research in Engineering and Management, vol. 02, no. 04, 2026, pp. . doi:https://doi.org/10.55041/ijcope.v2i4.188.

Srinivas, Chichari,Nalla Sai,Sunkara Prakash,Vegi Vinay, and Arumilli Babu. "Development of an Automated Overvoltage and Undervoltage Tripping Scheme for Power System Protection." International Journal of Creative and Open Research in Engineering and Management 02, no. 04 (2026). https://doi.org/https://doi.org/10.55041/ijcope.v2i4.188.

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•Published on: Apr 10 2026

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