Digital Solution of Short-Circuit Currents for Networks including Mutual Impedances
- 1 December 1959
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems
- Vol. 78 (4) , 1720-1723
- https://doi.org/10.1109/aieepas.1959.4500646
Abstract
A method has been presented for the digital solution of a short-circuit tensor and its use for the calculation of currents in lines including those having mutuals. The short-circuit tensor can be easily modified for line additions, deletions, or line-open conditions, thus eliminating the necessity for lengthy calculations for each fault condition. Networks may be divided into parts and the short-circuit tensor for each section solved for exactly, without deriving any approximate equivalents. Short-circuit tensors can be derived for each of the positive-and zerosequence networks of a system and the same program used for either phase or ground current calculations. Only the desired fault and line current are punched out.Keywords
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