For short-circuit faults on transformer lead-out wires, bushings, and internal components, appropriate protective devices shall be installed, and shall comply with the following provisions: Transformers with a capacity of 10 MVA or above operating individually, and transformers with a capacity of 6.3 MVA or above operating in parallel, shall be equipped with pilot differential protection. Important transformers with a capacity of 6.3 MVA or below operating individually may also be equipped with

The vulnerable components of a transformer and their replacement cycles must be determined comprehensively based on factors such as transformer type, operating environment, load conditions, and manufacturing processes.Common Vulnerable Components in Oil-Immersed TransformersOil-immersed transformers rely on insulating oil for heat dissipation and insulation. Their core components include the core, windings, insulation system, cooling system, and accessories. Vulnerable parts are primarily concen

Power transformer fault detection and repair typically require operation by experienced and qualified technical personnel. Below are some common steps for power transformer fault detection and maintenance:I. Check the transformer’s input and output voltage, current, temperature, and other parameters to ensure they are within normal ranges. Carefully read the transformer’s instruction manual to understand its rated voltage and current, temperature limits, and other special req

1. Definition of Condition-Based MaintenanceCondition-based maintenance refers to a maintenance method where decisions on whether and how to perform maintenance are determined based on the real-time operating status and health condition of equipment. It has no fixed maintenance methods or schedules. The prerequisite for condition-based maintenance is the establishment of equipment parameters and the comprehensive analysis of various operational information of the equipment, so as to make reasona