Publication: Design and development of solid-state circuit breaker
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Date
2024-08
Authors
Muhammad Adib Farhan bin Pakhrurrazi
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Abstract
Solid-state circuit breakers (SSCBs) represent the latest advancement in power distribution systems, experiencing increasing adoption owing to their superior
performance, dependability, and effectiveness. In contrast to conventional mechanical circuit breakers that rely on mechanical elements to disconnect the circuit upon detecting a fault, SSCBs employ electronic components to halt the current flow upon fault detection. Using the TRIAC as a fundamental element in constructing this SSCB yields numerous benefits. Despite having no moving parts, the TRIAC offers precise control over current interruption, reducing wear and tear over time and potentially extending the circuit's lifespan. In the previous project, a SSCB was constructed using MOSFETs due to their absence of moving parts. However, by incorporating TRIACs into this project, enhanced performance can be achieved as TRIACs offer more precise control compared to MOSFETs. Typically, MCBs can take several milliseconds to seconds to trip. In this project, the primary focus will be on the time it takes for the circuit breaker to trip. The
simulation will be conducted to obtain the waveform for the developed circuit, which will then be analyzed. Additionally, other parameters such as VDRM and IGT will also be discussed in this thesis. This circuit breaker takes approximately 17.6 milliseconds to trip when an overcurrent occurs. In conclusion, this SSCB has a shorter tripping time compared to an MCB. Additionally, the absence of arcing makes this SSCB superior to an MCB.