The 145kV vehicle‑mounted mobile substation is a compact assembly integrating high‑voltage switchgear, high‑voltage surge arresters, voltage transformers, current transformers, a main transformer, medium‑voltage switchgear modules, enclosures, and a carrying platform, offering high structural density and excellent adaptability. Its primary function is to step down the high‑voltage power from the user side to low‑voltage power for onward transmission. This mobile substation is ideally suited for applications such as emergency rescue and disaster relief, load transfer, critical power supply, and temporary capacity expansion.