The existence of multi-point grounding in transformer cores causes two major problems: firstly, it can lead to local short-circuit overheating in the core, and in severe cases, cause localized burning damage to the core; secondly, circulating currents generated in the normal core grounding wire can cause localized overheating in the transformer and potentially lead to discharge-type faults. Therefore, multi-point grounding faults in power transformer cores directly threaten the daily operation o
12/13/2025
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