Thavitchasri P, Nanthaphunkul J. The study and health analysis of low voltage circuit breaker and transformer in 22,000 volts substations. RMUTSB Acad. J. [internet]. 2022 May 29 [cited 2026 Aug. 31];10(1):1-10. available from: https://li01.tci-thaijo.org/index.php/rmutsb-sci/article/view/250929