Transformer faults are typically categorized into internal and external issues. In severe cases, they can leak large amounts of oil and ignite, causing fires. To prevent such dangers, today we'll teach you how to eliminate transformer short-circuit faults.
During export short circuits, transformer windings will withstand significant axial and radial electromagnetic forces. Axial electromagnetic forces compress the windings towards the center. This mechanical stress generated by electromagnetic forces may affect the inter-turn insulation of the windings, causing damage. Therefore, transformers should be selected that can easily pass short-circuit tests, and their capacities should be reasonably determined, as well as their short-circuit impedances appropriately chosen.
Protective measures must be taken for transformer terminal posts, including setting up guardrails or protective nets around the transformer. Enhance the insulation level of power lines, particularly the insulation level at a certain distance from the transformer's output, and simultaneously raise the standards for line safety corridors and distances. Reduce the impact and hazard of nearby faults. Determine the operating mode by calculating short-circuit current and limiting the damage caused by it.
Prevent short-circuit shocks caused by accidental operations; enhance timely monitoring and maintenance of transformers to promptly detect their deformation strength, ensuring safe transformer operation. Additionally, strengthen the management and verification of insulation protection to prevent incorrect protection settings and malfunctions.
Key features include: voltage transformation, current transformation, characteristic impedance conversion, a separated, adjusted (magnetic transformer contrast) type, etc.
By purpose, they can be categorized into: unique power engineering transformers, transformers (variable electric quantities, rectifier variability, frequency test transformers, voltage regulators, more and more mining, audio frequency transformers, high-frequency transformers, high-frequency transformers, impulse transformers, measuring transformers, electronic component transformers, series inductors, and other transformers.





