Improve transformer short circuit ability to become more and more attention

Accident damaged transformers in the power system, due to external short circuit caused by the large proportion of the extent of the damage is relatively heavy, the transformer manufacturers and run sector, improving the transformer short circuit ability to become more and more important issue. In this paper, two-winding power  mcb circuit breaker  OLTC instance, talk about the increased level 220kV power transformer short circuit ability of effective measures. Short analysis of electric power transformer winding leakage current carrying conductor in a magnetic field exposed the role of electric power at rated current, the electric power  Electric transformer . When a short circuit occurs, the current through the winding rated current than an order of magnitude, when the electric power is two orders of magnitude. During short-circuit current is continuously changing, and the winding and other components under the action of the electric power will produce displacement, this displacement of the winding and the other components of the material, the inertial force and the pre-pressing force of the friction effect displacement force, and therefore short-circuit electrical power analysis is a very complex and dynamic process analysis, this issue a great deal of analysis of domestic and international studies. Below is a brief description of the qualitative short-circuit power transformer windings and other components in the role of the case.