Recently, Chinese on-load tap changer (OLTC) manufacturers announced a major breakthrough: China’s first ±800 kV ultra-high-voltage (UHV) converter transformer vacuum OLTC with fully independent intellectual property rights has successfully completed all type tests. Its key technical specifications have reached internationally leading levels, marking a critical step toward full domestic control over the entire UHV converter transformer supply chain.As one of the core components in UHV DC transmi
11/25/2025
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