Concerning The No Load High Voltage Transformers Disconnecting
نویسندگان
چکیده
The computation program of the transient recovery voltages that appears across the terminals of a circuit breaker, after the low inductive current has been interrupted at the disconnecting no load high voltage transformers, using the routines set developed in Matlab is presented. The computation algorithm is based on the peculiarities of operation of the transformer. The computation program has been applied for transformers from the high voltage electric stations ST North Craiova and ST Urechesti. The computed level of the overvoltage amplitude allows the proper selection of the rated insulation level of the electrical equipment from the electric stations.
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