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- ISSN: 2456-2319
Jinendra Rahul , Saurabh Kumar , Naman Tiwari , Mohit Kumar , Yashasva bansal , Jitendra Singh
International Journal of Electrical, Electronics and Computers (IJECC), Vol-11,Issue-2, April - June 2026, Pages 1-5, 10.22161/eec.112.1
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Article Info: Received: 15 Mar 2026; Accepted: 13 Apr 2026; Date of Publication: 21 Apr 2026
Modern electrical systems need a reliable power supply, but phase failures in three-phase distribution networks often cause outages and damage to equipment. This paper proposes an automatic three-phase shifting system that keeps the supply going by dynamically choosing a phase that is available and healthy. The system uses voltage-sensing and signal-conditioning circuits to continuously monitor the conditions of each phase. It then uses a control unit to choose the best phase based on pre-set logic and safety thresholds. Switching is done with either relay-based or solid-state systems, which let the load move smoothly between phases when one or more of them fails. The proposed design improves operational reliability by reducing downtime, the need for manual intervention, and the risk of voltage imbalance and single phasing for connected loads. Recent implementations show that microcontroller-based control works well and that advanced switching technologies could make response times faster. The system is good for homes, businesses, and light industrial uses where a steady single-phase supply is important. Future improvements could include integrating with smart monitoring systems and high-speed semiconductor switching devices to improve performance.
