The Surge Protection of an SF6 GAS-Insulated Substation Supplied by Pipe-Type Cables
- 1 November 1978
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Apparatus and Systems
- Vol. PAS-97 (6) , 2282-2290
- https://doi.org/10.1109/TPAS.1978.354732
Abstract
It is shown that station entrance surge arresters are not required to maintain adequate protective margins in a proposed SF6 substation connected by HPOF pipe-type cables. This results in substantial cost savings for this installation. A calculation procedure is presented for predicting the maximum rate-of- rise of incoming lightning surges, enabling engineers to assess the feasibility of eliminating station entrance arresters in similar substations. The calculated results are confirmed by simulations with a digital transients computer program and a Transient Network Analyzer (TNA).Keywords
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