Lifetime Estimation and Optimal Maintenance Scheduling of Urban Oil-Immersed Distribution-Transformers Considering Weather-Dependent Intelligent Load Model and Unbalanced Loading

Research on on-line monitoring method for losses of distribution transformer in the case of single-phase grounding condition

“…The distribution transformer has a large quantity and a wide range, directly facing the end users of power, and its safe operation is directly related to the reliability of the power supply [1] . The devices used for online monitoring of operational status in large power transformers are unsuitable for installation in distribution transformers due to their high cost, complex structure, and large volume [2], [3] . Therefore, it is necessary to adopt a detection method suitable for detecting the operational status of distribution transformers.…”