Minimizing the Magnetic Field Surrounding Isolated-Phase Bus by Electrically Continuous Enclosures
- 1 April 1962
- 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. 81 (3) , 655-665
- https://doi.org/10.1109/AIEEPAS.1962.4501385
Abstract
This paper describes a bus with electrically continuous phase enclosures interconnected at both ends. Currents in the shielding loop thus formed reduce external magnetic flux to less than one tenth the amount experienced with a discontinuous sheath. Circulating currents in nearby metallic loops are greatly reduced thereby, making joint insulation and banding of steel beams unnecessary. Over-all sheath losses are practically unchanged, for shielding current losses are approximately balanced by substantial elimination of sheath eddy-current losses. Analytical predictions are confirmed by tests.Keywords
This publication has 3 references indexed in Scilit:
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- Power Tests Prove Single-Insulator Isolated-Phase Aluminum BusTransactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1958
- An Instrument for the Measurement of Large Alternating CurrentsTransactions of the American Institute of Electrical Engineers, 1944